Station Overview Station Location
Station Number CO-LR-1100 Latitude 40.475646
Station Name Fort Collins 5.5 S Longitude -105.072121
County Larimer Elevation (ft) 5038



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 18 1.12 1.20 31 1.20 31 0.00 0 0 10 5 6.6 1 3
Nov 18 0.72 0.54 30 0.54 30 0.00 0 0 5 4 7.9 4 6
Dec 18 0.60 0.06 31 0.06 31 0.00 0 0 2 4 0.8 3 3
Jan 19 0.46 0.79 31 0.79 31 0.00 0 0 7 2 4.2 4 7
Feb 19 0.48 0.20 28 0.20 28 0.00 0 0 6 8 3.0 6 6
March 19 1.55 1.76 31 1.76 31 0.00 0 0 9 4 11.8 5 11
April 19 1.96 1.98 30 1.98 30 0.00 0 0 7 4 15.1 3 5
May 19 2.44 2.31 31 2.31 31 0.00 0 0 17 5 3.2 5 3
June 19 1.96 1.73 30 1.73 30 0.00 0 0 14 4 0.0 0 0
July 19 1.46 1.25 31 1.25 31 0.00 0 0 10 7 0.0 0 0
Aug 19 1.39 0.13 31 0.13 31 0.00 0 0 6 9 0.0 0 0
Sept 19 1.36 0.72 30 0.72 30 0.00 0 0 6 1 0.0 0 0
Water Year Totals: 15.50" 12.67" 365 days 12.67" 365 0.00" 0 days 0 99 days 57 days 52.6" 31 days 44 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2018 0.03
10/2/2018 0.00
10/3/2018 0.00
10/4/2018 0.01
10/5/2018 0.08
10/6/2018 0.01
10/7/2018 T
10/8/2018 0.21
10/9/2018 0.07
10/10/2018 0.03
10/11/2018 0.07
10/12/2018 0.00
10/13/2018 0.00
10/14/2018 0.56
10/15/2018 T
10/16/2018 0.00
10/17/2018 0.00
10/18/2018 0.00
10/19/2018 0.00
10/20/2018 0.00
10/21/2018 0.00
10/22/2018 0.00
10/23/2018 0.00
10/24/2018 T
10/25/2018 T
10/26/2018 0.00
10/27/2018 0.00
10/28/2018 0.00
10/29/2018 0.00
10/30/2018 T
10/31/2018 0.13
11/1/2018 T
11/2/2018 0.00
11/3/2018 T
11/4/2018 0.00
11/5/2018 T
11/6/2018 0.00
11/7/2018 0.00
11/8/2018 0.00
11/9/2018 0.00
11/10/2018 0.00
11/11/2018 0.20
11/12/2018 0.16
11/13/2018 T
11/14/2018 0.00
11/15/2018 0.00
11/16/2018 0.00
11/17/2018 0.07
11/18/2018 0.10
11/19/2018 0.00
11/20/2018 0.00
11/21/2018 0.00
11/22/2018 0.00
11/23/2018 0.00
11/24/2018 0.00
11/25/2018 0.01
11/26/2018 0.00
11/27/2018 0.00
11/28/2018 0.00
11/29/2018 0.00
11/30/2018 0.00
12/1/2018 0.04
12/2/2018 0.00
12/3/2018 T
12/4/2018 0.00
12/5/2018 0.00
12/6/2018 0.02
12/7/2018 T
12/8/2018 0.00
12/9/2018 0.00
12/10/2018 0.00
12/11/2018 0.00
12/12/2018 0.00
12/13/2018 0.00
12/14/2018 0.00
12/15/2018 0.00
12/16/2018 0.00
12/17/2018 0.00
12/18/2018 0.00
12/19/2018 0.00
12/20/2018 0.00
12/21/2018 0.00
12/22/2018 0.00
12/23/2018 T
12/24/2018 0.00
12/25/2018 0.00
12/26/2018 0.00
12/27/2018 T
12/28/2018 0.00
12/29/2018 0.00
12/30/2018 0.00
12/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.04
1/2/2019 0.00
1/3/2019 0.00
1/4/2019 0.00
1/5/2019 0.00
1/6/2019 0.00
1/7/2019 0.00
1/8/2019 0.00
1/9/2019 0.00
1/10/2019 0.00
1/11/2019 0.08
1/12/2019 0.31
1/13/2019 0.00
1/14/2019 0.00
1/15/2019 0.00
1/16/2019 0.00
1/17/2019 0.00
1/18/2019 0.00
1/19/2019 0.05
1/20/2019 0.00
1/21/2019 0.00
1/22/2019 0.07
1/23/2019 T
1/24/2019 0.12
1/25/2019 0.12
1/26/2019 0.00
1/27/2019 0.00
1/28/2019 T
1/29/2019 0.00
1/30/2019 0.00
1/31/2019 0.00
2/1/2019 0.00
2/2/2019 0.00
2/3/2019 0.00
2/4/2019 0.00
2/5/2019 0.00
2/6/2019 0.00
2/7/2019 0.13
2/8/2019 0.00
2/9/2019 0.00
2/10/2019 0.00
2/11/2019 T
2/12/2019 T
2/13/2019 0.00
2/14/2019 0.00
2/15/2019 0.01
2/16/2019 0.00
2/17/2019 T
2/18/2019 0.01
2/19/2019 0.01
2/20/2019 T
2/21/2019 T
2/22/2019 0.03
2/23/2019 0.01
2/24/2019 0.00
2/25/2019 0.00
2/26/2019 T
2/27/2019 T
2/28/2019 T
3/1/2019 0.00
3/2/2019 0.22
3/3/2019 0.19
3/4/2019 T
3/5/2019 0.00
3/6/2019 0.00
3/7/2019 0.06
3/8/2019 T
3/9/2019 0.03
3/10/2019 0.00
3/11/2019 0.00
3/12/2019 0.00
3/13/2019 0.27
3/14/2019 0.64
3/15/2019 0.00
3/16/2019 0.00
3/17/2019 0.00
3/18/2019 0.00
3/19/2019 0.00
3/20/2019 0.00
3/21/2019 0.00
3/22/2019 0.00
3/23/2019 0.06
3/24/2019 T
3/25/2019 T
3/26/2019 0.00
3/27/2019 0.00
3/28/2019 0.00
3/29/2019 0.03
3/30/2019 0.26
3/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2019 0.00
4/2/2019 0.00
4/3/2019 0.00
4/4/2019 0.01
4/5/2019 0.00
4/6/2019 0.00
4/7/2019 0.01
4/8/2019 0.00
4/9/2019 0.00
4/10/2019 0.00
4/11/2019 1.10
4/12/2019 0.00
4/13/2019 0.11
4/14/2019 0.00
4/15/2019 0.00
4/16/2019 0.00
4/17/2019 0.00
4/18/2019 T
4/19/2019 T
4/20/2019 0.00
4/21/2019 0.00
4/22/2019 0.24
4/23/2019 T
4/24/2019 0.00
4/25/2019 0.00
4/26/2019 0.00
4/27/2019 0.01
4/28/2019 0.00
4/29/2019 T
4/30/2019 0.50
5/1/2019 0.18
5/2/2019 0.01
5/3/2019 0.00
5/4/2019 0.00
5/5/2019 0.00
5/6/2019 T
5/7/2019 0.07
5/8/2019 0.05
5/9/2019 0.19
5/10/2019 0.19
5/11/2019 T
5/12/2019 0.02
5/13/2019 0.00
5/14/2019 T
5/15/2019 T
5/16/2019 0.00
5/17/2019 T
5/18/2019 0.07
5/19/2019 0.03
5/20/2019 0.29
5/21/2019 0.74
5/22/2019 0.02
5/23/2019 0.02
5/24/2019 0.01
5/25/2019 0.00
5/26/2019 0.00
5/27/2019 0.01
5/28/2019 0.16
5/29/2019 0.25
5/30/2019 0.00
5/31/2019 0.00
6/1/2019 0.02
6/2/2019 T
6/3/2019 0.05
6/4/2019 0.16
6/5/2019 0.00
6/6/2019 0.11
6/7/2019 0.00
6/8/2019 0.01
6/9/2019 0.01
6/10/2019 0.00
6/11/2019 0.00
6/12/2019 0.01
6/13/2019 0.00
6/14/2019 0.00
6/15/2019 0.00
6/16/2019 T
6/17/2019 0.06
6/18/2019 0.09
6/19/2019 0.16
6/20/2019 0.00
6/21/2019 0.01
6/22/2019 0.74
6/23/2019 0.25
6/24/2019 0.05
6/25/2019 T
6/26/2019 T
6/27/2019 0.00
6/28/2019 0.00
6/29/2019 0.00
6/30/2019 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2019 T
7/2/2019 0.39
7/3/2019 0.00
7/4/2019 0.00
7/5/2019 0.09
7/6/2019 0.38
7/7/2019 0.01
7/8/2019 0.00
7/9/2019 T
7/10/2019 0.00
7/11/2019 0.00
7/12/2019 T
7/13/2019 T
7/14/2019 0.00
7/15/2019 0.20
7/16/2019 0.02
7/17/2019 0.00
7/18/2019 0.00
7/19/2019 0.00
7/20/2019 0.00
7/21/2019 0.09
7/22/2019 0.02
7/23/2019 T
7/24/2019 0.00
7/25/2019 0.04
7/26/2019 T
7/27/2019 0.00
7/28/2019 0.01
7/29/2019 0.00
7/30/2019 0.00
7/31/2019 T
8/1/2019 0.01
8/2/2019 0.02
8/3/2019 0.00
8/4/2019 0.00
8/5/2019 0.00
8/6/2019 0.01
8/7/2019 0.00
8/8/2019 T
8/9/2019 T
8/10/2019 T
8/11/2019 0.05
8/12/2019 T
8/13/2019 0.00
8/14/2019 0.03
8/15/2019 0.00
8/16/2019 T
8/17/2019 T
8/18/2019 0.01
8/19/2019 0.00
8/20/2019 0.00
8/21/2019 0.00
8/22/2019 T
8/23/2019 T
8/24/2019 T
8/25/2019 0.00
8/26/2019 0.00
8/27/2019 0.00
8/28/2019 0.00
8/29/2019 0.00
8/30/2019 0.00
8/31/2019 0.00
9/1/2019 0.00
9/2/2019 0.00
9/3/2019 0.00
9/4/2019 0.00
9/5/2019 0.01
9/6/2019 0.00
9/7/2019 0.05
9/8/2019 0.00
9/9/2019 0.33
9/10/2019 0.06
9/11/2019 0.00
9/12/2019 0.08
9/13/2019 0.00
9/14/2019 0.00
9/15/2019 0.00
9/16/2019 0.00
9/17/2019 0.00
9/18/2019 0.00
9/19/2019 0.00
9/20/2019 0.00
9/21/2019 0.00
9/22/2019 T
9/23/2019 0.00
9/24/2019 0.00
9/25/2019 0.00
9/26/2019 0.00
9/27/2019 0.00
9/28/2019 0.19
9/29/2019 0.00
9/30/2019 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2018 7:00 AM 0.03 0.0 0.00 0.0 0.00 -DZ from the 7:00am (30 Sept) observation to around 12:00pm MDT, with periodic -RA between 8:45-10:15am.
10/2/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/3/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/4/2018 7:00 AM 0.01 0.0 0.00 0.0 0.00 After a very warm early October day (high 86F on 3 Oct 2018), a moderately strong cold front passed through at 6:00pm MDT. Winds shifted from SW to NW to NE, and the temperature dropped rapidly from 77F at 6:00pm to 59F at 7:00pm. SHRA 8:55-9:10pm MDT, 12:50am, 1:15-1:40am.
10/5/2018 7:00 AM 0.08 0.0 0.00 0.0 0.00 -TSRA, with occasional TSRA conditions, between 1:20-2:45pm MDT.
10/6/2018 7:00 AM 0.01 0.0 0.00 0.0 0.00 -SHRA around 5:45pm on 5 Oct, and again 5:00-5:50am on 6 Oct. Strong cold front passed through the area at 1:45pm. Ahead of the front, WSW gusted to 31 mph and temperatures peaked at 73.0F but then dropped into the low 50sF by 4:00pm MDT with moderate NE winds.
10/7/2018 7:00 AM T 0.0 0.00 0.0 0.00
10/8/2018 7:00 AM 0.21 0.0 0.00 0.0 0.00 Unseasonably cool with low clouds and occasional DZ throughout the period. Occasional -RA 6:30-7:30pm and 10:00pm-1:30am. High/low on 7 Oct 44F/38F.
10/9/2018 7:00 AM 0.07 0.0 0.00 0.0 0.00 -DZ with low stratus throughout the period. Moderate drizzle between 9:30pm and 12:00am. No snow observed. High/low temperature on 8 Oct: 41F/36F.
10/10/2018 7:00 AM 0.03 T T T T *** First freeze and first snow of the season *** -SHRA and -SHSN between about 11:00pm and the 7:00am MDT observation. High/low temperature on 9 Oct: 42F/35F. Overnight low 32.0F at the morning observation (with isolated flurries) with temperature continuing to gradually fall.
10/11/2018 7:00 AM 0.07 T T 0.0 0.00 Very cold with occasional -SHSN from 7:00am-7:00pm MDT on 10 Oct. Snow mostly melted on contact with the still-warm ground. High/low temperatures on 10 October were 35.6F/31.6F, resulting in an unusually small diurnal temperature range of just 4F.
10/12/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/13/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/14/2018 7:00 AM 0.56 6.6 0.56 7.0 0.49 After a mild and cloudless day (high temperature 66.7F on 13 Oct), -SHRA began around 6:30pm MDT, -SN 8:30-10:00pm, SN with occasional +SN 10:00pm-1:00am, -SN 1:00am to the 7:00am observation. A strong cold front passed through the area around 6:00pm and ushered in gusty north to northeast winds overnight. Near-blizzard conditions between 10:00pm-1:00am. Only 0.39" of liquid-equivalent precipitation was measured in the gauge, and instead the melted core value from the snow board was used as the total precipitation amount because of presumed undercatch with the high winds and large trees to the north of the gauge.
10/15/2018 7:00 AM T T T 3.5 0.37 Occasional -SHSN and flurries through late morning. Remaining cloudy through mid-afternoon, then one or two peaks of sun and clearing late evening. Very cold, with a 14 Oct high of 30.8F and a morning low on 15 Oct of 9.5F with clear skies, light winds, and fresh snow cover.
10/16/2018 7:00 AM 0.00 0.0 0.00 1.0 0.21
10/17/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/18/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/19/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/20/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/21/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/22/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/23/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/24/2018 6:00 AM T 0.0 0.00 0.0 0.00 -SHRA beginning around 5:30am MDT and continuing through the 6:00am observation.Mild overnight, with a low of 47F at 6:00am.
10/25/2018 7:00 AM T 0.0 0.00 0.0 0.00 -SHRA during the 10/24 morning observation (6:00am MDT), ending soon after.
10/26/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/27/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/28/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 A near-record high temperature of 76.7F, with WNW gusting to 33 mph in the afternoon.
10/29/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
10/30/2018 6:00 AM T 0.0 0.00 0.0 0.00 -SHRA 5:00am to the 6:00am MDT observation. Unseasonably warm on 29 Oct, with a high temperature of 79F. Moderate ENE winds during the early afternoon shifted to moderate WNW winds ahead of a cold frontal passage at around 8:00pm, with NE winds up to 31 mph afterward. Nice example of evening radiative cooling, then a warming "blip" due to frontal mixing, then cooling due to cold advection.
10/31/2018 7:00 AM 0.13 0.0 0.00 0.0 0.00 36F cooler on 30 Oct (high 43F) than 29 Oct (high 79F). Occasional -SHRA through the daytime, primarily between 9:30am-10:00pm MDT. No snow was observed, although it's possible that some wet snowflakes could have mixed with the rain showers between about 5:00-7:00pm.
11/1/2018 7:00 AM T 0.0 0.00 0.0 0.00 Precipitation possibly from -SHRA or -DZ soon after the 31 Oct morning observation?
11/2/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/3/2018 7:00 AM T 0.0 0.00 0.0 0.00 Extremely strong winds between 10:30-11:30pm MDT on 2 November. Peak gust 54 mph from WNW at 10:40pm MDT, with additional gusts to 53 mph around 10:30pm. Peak 10-minute sustained wind 25 mph at 10:40pm. No damage, but playhouse was blown around patio. Winds driven by strong mixing from weak convective cell and rain evaporation moving WNW-ESE off the mountains between 10:40-11:00pm. Additional -SHRA 3:05-3:30am and 4:40-5:15am. Max/min temperature on 2 November was 66F/36F, and temperature around time of peak winds was around 50F.
11/4/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/5/2018 7:00 AM T 0.0 0.00 0.0 0.00 -SHRA 2:30-3:10pm MST.
11/6/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/7/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/8/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/9/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/10/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/11/2018 7:00 AM 0.20 3.8 0.19 4.0 0.18 Very dry and mild on 10 November, with a cold front passing through just before 4:00pm. High temperature 61F, then cooling rapidly during the late afternoon. -SHRA around 9:00pm MST quickly changing to -SN by 9:30pm and continuing through the night. Occasional periods of SN. At the 7:00am observation, both primary and secondary roads are mainly just wet, with -SN.
11/12/2018 6:30 AM 0.16 3.3 0.16 6.0 0.32 Generally steady -SN between the 7:00am MST observation and 12:30pm, with embedded periods of SN and brief +SN between 8:45am-12:00pm. Snow rapidly tapered off around 2:00pm with thinning stratus and one or two peaks of sun in the late afternoon. Becoming overcast again overnight with SHSN around 10:45pm and again 5:00-6:30am. Flurries at time of observation. Significant snow compaction overnight: The 3.3" of new snow was measured on the snow board at 5:00pm, and this morning's measurement was closer to 2". Similarly, the total depth of 6.0" was measured last evening but was closer to 5.0" this morning.
11/13/2018 7:00 AM T T T 2.5 0.27 -SHSN between 6:30-7:00am MST on 12 November, then clearing but remaining cold with a high of 30F.
11/14/2018 7:00 AM 0.00 0.0 0.00 0.5 0.30
11/15/2018 7:00 AM 0.00 0.0 0.00 T T
11/16/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/17/2018 7:00 AM 0.07 T T T T Light rain beginning around 3:45am and changing to a mix of ice pellets and freezing rain around 5:00am. Precipitation changing to all ice pellets and increasing in intensity at the 7:00am observation time. A glaze of freezing rain accumulation, approximately 0.05".
11/18/2018 7:00 AM 0.10 0.7 0.10 1.0 0.10 Light to moderate ice pellets between 7:00-9:30am MST, then steady -SN through 7:00pm. Isolated -SHSN overnight. Snow is grainy and dense. Snow depth core very difficult to measure and estimated to equal melted core of new snow on board.
11/19/2018 7:00 AM 0.00 0.0 0.00 T T About 25% snow cover.
11/20/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/21/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/22/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/23/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/24/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 Strong WNW winds from 8:00am to 3:00pm MST on 23 Nov. Maximum 10-minute sustained wind 20 mph on a few occasions between 10:30am-12:00pm, with a peak gust 40 mph at 11:15am.
11/25/2018 7:00 AM 0.01 0.1 0.01 0.1 T Moderate ice pellets from a convective storm 11:30am-12:00pm MST. WNW winds becoming strong and shifting to N as a cold front passed through midday. Peak 10-minute sustained wind 20 mph from NW at 7:45pm, with a coincide peak gust to 42 mph (also from NW). Blowing -SN to SN 7:45-9:30pm.
11/26/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/27/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/28/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/29/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
11/30/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/1/2018 7:00 AM 0.04 0.1 0.01 0.1 0.01 Cloudy, dark, and gloomy all day. Mist and low stratus in the morning, then -RA 3:15pm MST changing -RASN around 4:15pm and then ending as -SN around 6:15pm. Freezing fog overnight, with snow flurries 4:00-7:00am. Snow cores difficult to measure due to a layer of ice (melted snow) on the board. Snow depth core estimated from new snow on board.
12/2/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/3/2018 7:00 AM T 0.1 T 0.1 T Very light flurries between about 5:30pm-1:00am MST.
12/4/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/5/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/6/2018 7:00 AM 0.02 0.6 0.02 0.5 0.02 Steady but very light snow began around 9:30pm MST on 5 Dec and continued through the 7:00am observation. Snow was extremely "dry" and fluffy.
12/7/2018 7:00 AM T T T T T Cold and with low clouds all day. -SN 7:00am-12:30pm. High temperature 27F, this morning's (7 Dec) low 11F with clear skies overnight.
12/8/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/9/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/10/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/11/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/12/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/13/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/14/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/15/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/16/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/17/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/18/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/19/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 Mild with occasional strong winds overnight. Temperatures dropped to 33F around 10:00pm MST, then rose to 51F by 2:00am and remained in the upper 40s F. Maximum sustained winds 20 mph (WNW, 2:50am) with a peak gust of 41 mph (NW, 3:40am).
12/20/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 Continued windy during the day on 19 Dec. Max 10-minute sustained wind 16 mph (NW) in the late morning, with gusts to 34 mph at that time and again around 8:00pm MST.
12/21/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/22/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/23/2018 7:00 AM T T T 0.0 0.00 A few snow flurries around 8:00am MST.
12/24/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/25/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/26/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/27/2018 7:00 AM T T T 0.0 0.00 Very light snow showers around 4:30pm MST.
12/28/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 No snow observed.
12/29/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/30/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/31/2018 7:00 AM 0.00 0.0 0.00 0.0 0.00 Strong cold frontal passage around 3:00am MST, wind shift from SSW to NE and temperatures falling into the upper teens F. As of the 7:00am observation, the max 10-minute sustained wind was 15 mph (N) and the peak gust was 30 mph (NE). No snow observed.
1/1/2019 7:00 AM 0.04 0.4 0.04 0.5 0.04 Very cold, cloudy, and windy. Snow grains began around 7:30am MST, gradually developed into -SN by mid-morning and continued throughout the period with occasional breaks overnight. Max temperature on 31 Dec 2018 was 31.4F (at 12:30am), and the low was 3.0F at 11:30pm. Wind chills 0F to -10F. Snow was dry and dense. Snow depth may be slightly underestimated due to wind.
1/2/2019 7:00 AM 0.00 0.0 0.00 0.5 0.04 Clear and cold. High temperature on 1 Jan 2019 was 15.3F, overnight low -1.9F (1:50am MST on 2 Jan, then steady).
1/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/6/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/7/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/9/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/10/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/11/2019 7:00 AM 0.08 0.0 0.00 0.0 0.00 -RA developed around 4:00am and continued through the 7:00am MST observation. No snow observed. Rare to have rain in mid-January in Fort Collins!
1/12/2019 7:00 AM 0.31 T T T T Steady light rain from the 7:00am MST observation (11 Jan) to about 11:00pm. Rain mixed with a few snow flurries in the morning.
1/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/19/2019 7:00 AM 0.05 T T T T Light to moderate rain and snow mix between about 10:15am to 1:00pm MST. Gusty northerly winds to 27 mph midday (note that northerly winds are underestimated at this site due to trees).
1/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/22/2019 6:15 AM 0.07 0.9 0.07 1.0 0.07 Snow squall with +SN 8:30-9:00pm MST with NNE winds ~13 mph gusting to 31 mph and visibility less than 0.5 miles, then -SN throughout the night with moderate to strong northerly winds. Peak gust 32 mph from N around 3:00am, and max sustained 10-minute wind 14 mph (12:05am, NW). High winds caused undercatch in precipitation gauge.
1/23/2019 7:00 AM T T T T T -SHSN until about 10:00am MST, becoming clear by early afternoon with continued moderate NNW winds of 10 mph gusting up to 30 mph (12:45pm). Approximately 0.5" of remaining snow cover on ~40% of the lawn.
1/24/2019 7:00 AM 0.12 1.4 0.12 1.5 0.12 -SN beginning around 5:00am MST, becoming SN by 6:00am through the 7:00am observation. Frontal passage around 5:45am with winds shifting from ESE to NNE and gusting to 23 mph. Moderate snow with visibility 0.5 mile at observation.
1/25/2019 7:00 AM 0.12 1.5 0.12 1.5 0.22 SN to +SN from 7:00-9:00am, then quickly tapering to flurries and becoming mostly clear by late morning. Morning commute was extremely slow due to intensity of snow and poor plowing. Storm total 2.9" of snow (0.24" liquid equivalent).
1/26/2019 7:00 AM 0.00 0.0 0.00 1.5 0.20
1/27/2019 7:00 AM 0.00 0.0 0.00 0.5 0.14 About half the lawn covered in snow, and where there is snow the depth is about 1.0" with 0.28" of liquid equivalent.
1/28/2019 7:00 AM T T T 0.0 0.00 Mild and breezy during the day, with a high of 60F. -SHSN 2:00-2:30am MST and 4:15-5:15am. Cold front passed through around 6:50pm (27 Jan), then strong WNW winds gradually shifting to NNE overnight. Max sustained 10-minute average wind 17 mph (WNW @ 8:30pm), with a peak gust of 37 mph (WNW @ 9:30pm). Virtually all snow cover melted.
1/29/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
1/31/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/1/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/2/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Mild and windy during the afternoon and overnight. High temperature on 3 Feb was 62.4F, with a max 10-minute sustained wind of 19 mph (W) and a peak gust of 37 mph (W) around 2:00pm MST. WNW winds gusted to 31 mph overnight. Temperatures dipped to 33F for a short time at 11:30pm, then remained in the mid-40s F for most of the night.
2/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 An unusual weather day. High temperature 47.4F at 6:10am MST coincided with WSW winds gusting to 31 mph. A frontal boundary then passed through shifting winds to ENE and dropping temperatures into the 20s F. Temperatures rose again in the afternoon, but only to 43F, with persistent NE winds around 5-10 mph.
2/6/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Low stratus and freezing fog developed after midnight as light and variable winds shifted to NE and increased and temperature quickly dropped to and remained at about 15F. No snow observed, though it's possible a few flurried occurred. At the 6 Feb 7:00am MST observation, freezing fog with visibility of about 1 mile.
2/7/2019 7:00 AM 0.13 1.8 0.13 2.0 0.13 Freezing fog and -SN 7:00-10:00am MST, SN and occasional +SN 10:00am-12:00pm, then -SN gradually tapering off through evening. Occasional ice crystals overnight and in the morning, with a "sun dog" observed at 8:00am. Chilly, with a temperature hovering around 17F from morning through 2:00pm and then dropping quickly into the single digits F by 4:30pm. Overnight low –6.2F (5:00am), minimum wind chill –22F. At the 7 Feb 7:00am observation, partly cloudy with ice crystals, temperature –6F, wind chill –10F.
2/8/2019 7:00 AM 0.00 0.0 0.00 1.5 0.11 Very cold. High/low temperature on 7 Feb was 10F/–6F with mostly cloudy skies through afternoon, then clearing late evening. Temperatures overnight dropped to –7F just after midnight but then remained steady until dawn.
2/9/2019 7:00 AM 0.00 0.0 0.00 0.5 0.07 About 80% snow cover. No new snow observed.
2/10/2019 7:00 AM 0.00 0.0 0.00 T T About 30-40% snow cover. No new snow observed. Foggy this morning.
2/11/2019 7:00 AM T T T 0.0 0.00 Very dense freezing fog from about 5:00-7:00am MST. Visibility down to about 0.1 miles. Occasional light flurries and snow grains. Overnight low temperature 7.5F.
2/12/2019 7:00 AM T T T 0.0 0.00 Occasionally dense freezing fog and intermittent snow flurries and snow grains from 7:00am MST to about 10:00am, then clearing after noon. A "battle" of drier westerlies and moister easterlies in the late afternoon, with dew point temperatures bouncing from the single digits (F) to the low 20s, sometimes within 5 minutes.
2/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 A short bout of strong downslope winds overnight sent the temperature from 31F (2:10am MST) to 46F (3:50am) and back to 29F (7:00am). Max 10-minute sustained wind 17 mph (W, 3:35am) with peak gust 37 mph (also W) at the same time.
2/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Windy and mild. 13 Feb: high temperature 58F, 24-hour mean wind speed 7.3 mph (W to SW), max 10-minute sustained wind 20 mph (W, around 2:30pm MST), and peak gust 37 mph (W, 3:30am). Overnight low temperature 40F.
2/15/2019 7:00 AM 0.01 0.1 0.01 T T A mild start: overnight low the morning of 14 Feb was 39F, and the 15 Feb high was 54F at 9:50am MST. Increasing E winds (sustained at 12-14 mph gusting to 25 mph) caused temperatures to fall through the 30sF in the afternoon. -SHSN 4:00-5:00am MST.
2/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/17/2019 7:00 AM T T T 0.0 0.00 -SHSN 1:45-2:45pm MST. Abrupt wind shift 3:15pm, from S to NW with gusts to 28 mph and a dew point temperature drop from 23F to 10F in 5 minutes (later dropping to 0F).
2/18/2019 7:00 AM 0.01 0.6 0.01 0.5 0.01 Clear, then becoming cloudy by noon with -SN developing 4:15pm MST and continuing thoughout the night. Cold, with temperatures dropping from the 20s F to 7F by the 7:00am observation. Steady, moderate SE wind 5-7 mph with gusts to 15 mph, wind chills 0F to -10F. Snow was extremely "dry" and fluffy.
2/19/2019 7:00 AM 0.01 0.2 0.01 0.5 0.02 A mainly steady but light, dry snow throughout the entire period. 18 Feb high/low temperature 17F/7F.
2/20/2019 7:00 AM T T T T T Occasional -SN from 7:00am MST through early afternoon. Heavy ice fog and flurries during the early morning reducing visibility to less than 0.25 miles.
2/21/2019 7:00 AM T T T 0.0 0.00 Dense ice fog and snow flurries from the 7:00am MST observation to 8:00am, then clear.
2/22/2019 7:00 AM 0.03 0.2 0.03 0.2 0.02 -SG and -SN from 8:00pm MST through the 7:00am observation. Winds NE shifting to SE.
2/23/2019 7:00 AM 0.01 0.1 0.01 T T FZFG with occasional -SN and -SG throughout the period, except for a break during the mid-afternoon. Cold, steady temperature with a daytime high of only 25F and low of 20F. Unusually small temperature range of 5F on 22 Feb 2019.
2/24/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/26/2019 7:00 AM T T T T T A pleasant but breezy day (high 51F), then freezing fog with occasional snow grains and flurries 9:00pm to 7:00am MST.
2/27/2019 7:00 AM T T T T T -SN 5:00-7:00am MST.
2/28/2019 7:00 AM T T T T T -SN 7:00-9:30am MST, 4:30-6:30am.
3/1/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/2/2019 7:30 AM 0.22 3.2 0.22 3.0 0.19 Persistent -SN 8:30pm to 7:30am MST.
3/3/2019 8:00 AM 0.19 2.5 0.19 5.0 0.44 -SN throughout the period. Cloudy and very cold, with temperatures falling through the 20s F and into the single digits by 6:00pm MST. The snow is slightly "wet" despite the cold temperatures. Overnight low –1.2F with windchills down to –15F. Storm total snowfall 5.7".
3/4/2019 7:00 AM T T T 4.5 0.41 Frigid and cloudy with very light snow through mid-afternoon. High temperature on 3 March was 9.7F (record coldest high temperature for the date), low –8.4F. Low on the morning of 4 March was –10.5F.
3/5/2019 7:00 AM 0.00 0.0 0.00 3.5 0.35 Low temperature –10.5F.
3/6/2019 7:00 AM 0.00 0.0 0.00 2.5 0.27 Low temperature –3.0F.
3/7/2019 7:00 AM 0.06 0.2 0.02 2.5 0.27 -SN 8:00-11:00pm MST.
3/8/2019 7:00 AM T T T 1.0 0.14 Dense freezing fog and occasional -SN and -SG 7:00-10:00am MST, then gradual clearing later in the afternoon.
3/9/2019 7:00 AM 0.03 0.0 0.00 0.0 0.00 -RA 5:00-7:30pm MST on 8 March.
3/10/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/11/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/12/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/13/2019 7:00 AM 0.27 0.0 0.00 0.0 0.00 -RA 10:15-11:30pm MDT, 12:00-12:30am, 3:00-3:20am, 4:10-7:00am (occasional periods of RA during the last period). High temperature on 12 March was 61F. -RA with a moderate north wind at the 7:00am (13 March) observation. Preparing for blizzard conditions today.
3/14/2019 7:00 AM 0.64 4.3 0.46 4.3 0.46 Blizzard or near blizzard conditions in our neighborhood. Light to moderate rain from 7:00am MDT transitioning to snow around 8:30am and becoming all snow by around 9:00am. Moderate to heavy snow and snow grains and extremely strong north winds 9:00am-3:00pm, with snow tapering off and ending around 4:30pm. Extremely low barometric pressure (and possibly a station record?) observed at KFNL at 7:56am MDT on 13 March 2019: 983.2 mb. KDEN (979.01 mb) and Lamar CO (970.4 mb, a new state record!). Continued very windy with blowing snow overnight. Temperatures dropped from 38F at 7:00am into (and remaining in) the upper 20s F for the remainder of the period. A wind gust of 36 mph was recorded at 9:30am. The cup anemometer developed a heavy glaze of ice and rime, which likely reduced wind speeds after the temperatures dropped below 32F (10:00am) and fully stopped the anemometer cups from 10:45am-2:45pm. Using mesonet station CO177 (0.7 mi SSW) and KFNL (3.6 mi ESE) wind data matched to my station (CO-LR-1100) before 10:00am and after 2:45pm, the estimated maximum 10-minute sustained wind for the period was 19 mph and the estimated maximum gust was 41 mph. Note: Large trees to the north of the station often reduce measured northerly winds, so the true wind speeds were likely significantly higher. The high winds caused substantial snow drifting and made snow depth measurements difficult. Only about 2" of new snow was measured on the snow board, which was clearly affected by the high winds. The 4.3" total was an averaged measurement taken in an area that was somewhat more protected from the wind but also not impacted by drifting or "snow-fencing" effects.
3/15/2019 7:00 AM 0.00 0.0 0.00 2.5 0.46
3/16/2019 7:00 AM 0.00 0.0 0.00 2.0 0.47
3/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/22/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/23/2019 7:00 AM 0.06 0.0 0.00 0.0 0.00 -RA 5:45-7:30pm MDT. Thunder in vicinity during the afternoon (first of the spring!).
3/24/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated sprinkles throughout the day. No snow observed.
3/25/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated sprinkles around 12:00pm MDT, then -SHRA 5:00-5:45pm.
3/26/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/27/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/28/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
3/29/2019 7:00 AM 0.03 0.0 0.00 0.0 0.00 -DZ and occasional -RA from 9:00pm-7:00am MDT. At the 7:00am observation, -DZ with visibility about 0.5 mi.
3/30/2019 7:00 AM 0.26 1.6 0.23 1.5 0.13 -DZ 7:00-8:00am MDT, cloudy through midday. SHRA 3:30-5:00pm. -RA and RA 6:00-6:45pm, mixing with snow at 6:45pm and changing to all snow by 7:00pm. -SN and occasional SN 7:00pm-4:15am. Initial snow melted on warm ground, no accumulation on paved surfaces.
3/31/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/1/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/2/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
4/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/4/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -SHRA 7:15-7:30pm MDT.
4/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/6/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/7/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 Occasional SHRA 2:15-4:30pm MDT.
4/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/9/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Well above average high temperature of 77F on 8 April.
4/10/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Very warm, with a high temperature of 76.4F on 9 April (approximately 16F above the climatological average). Temperature did not fall below 70F until 7:30pm MDT, then dipped to 50F at 12:00am, rose back up to 60F at 1:00am thanks to pre-frontal west winds gusting to 26 mph, and then steadily dropped to 40F by the 7:00am observation. Minimum air pressure (corrected to sea level) 29.42" at 12:00am on 10 April.
4/11/2019 7:00 AM 1.10 10.0 1.10 10.0 1.10 Major winter storm. PL to +PL from 7:50-8:00am MDT, intermittent showers of RASN and PL with periods of +RASN between 8:00-11:30am, nearly continuous +SN 11:30am-4:30pm gradually tapering to -SN by 5:30pm and continuing until 5:00am on 11 April. Visibilities during the period of +SN dropped to 0.25 mi and at times less. Road conditions became poor after 2:00pm. On 10 April, temperature dropped from 60.4F at 1:00am into the 30s F by 8:15am and the 20s F by 3:30pm. Overnight low temperature 19.9F at 1:15am. Anemometer stopped around 11:00am due to ice buildup (and has not yet thawed by the 7:00am observation), estimated maximum winds 25-30 mph from NNE. Moderate drifting of snow. New snowfall and liquid equivalent measured on the ground (not the snow board) away from drifts. Precipitation gauge affected by "undercatch" as snow accumulated on top of the gauge and did not fall into the gauge. Heated tipping bucket gauge, also subject to high winds, reads 0.87" of liquid at the 7:00am observation but may rise slightly as more melting occurs. (Elevated) snow board measurement was about 7-8" but was clearly affected by drifting/undercatch as well.
4/12/2019 7:00 AM 0.00 0.0 0.00 5.5 0.96 Breezy and cool. No precipitation observed. High temperature 41.6F. Ice buildup on anemometer thawed at 8:50am MDT.
4/13/2019 7:00 AM 0.11 0.9 0.11 4.5 0.77 -RA beginning around 10:45pm MDT (12 Apr) and quickly changing to -SN, then SN to +SN 12:45-1:45am, then -SN continuing until about 3:00am.
4/14/2019 7:00 AM 0.00 0.0 0.00 0.5 0.38 About half of the lawn covered with 1.0" of snow (average depth = 0.5").
4/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/18/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA 8:00-9:10am MDT and again around 1:15am. Breezy for a time overnight, with 10-minute sustained winds of 15 mph (NW) and peak gust 31 mph (NW) at 11:00pm.
4/19/2019 7:00 AM T 0.0 0.00 0.0 0.00 -SHRA 8:05-8:30am MDT.
4/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Near-record high temperature of 79.2F (record at CSU weather station is 82F set in 1989).
4/22/2019 7:00 AM 0.24 0.0 0.00 0.0 0.00 Isolated -TSRA from 12:00-2:00pm MDT. RA 4:50-6:50pm, then -RA 6:50-9:00pm. Occasional -SHRA overnight.
4/23/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated -SHRA between 7:00-11:30am MDT. Cool and cloudy with an unusually low diurnal temperature range of 4.9F (high 47.1F, low 42.2F).
4/24/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Windy overnight with maximum 10-minute sustained winds 16 mph (from N) and multiple peak gusts of 30 mph (generally from NE) between 12:00-2:00am MDT. No precipitation observed.
4/26/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/27/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -TSRA around 5:30pm MDT, then a gusty SHRA from 10:00-11:00pm with 10-minutes sustained winds of 20 mph (WNW, 10:20 pm) and multiple gusts to 38 mph between 10:00-10:30pm. Unusually warm, with a high temperature of 76.9F on 26 April.
4/28/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
4/29/2019 7:00 AM T 0.0 0.00 0.0 0.00 Light and variable winds becoming strong from the WNW after 1:00pm MDT, with maximum 10-minute sustained wind 19 mph and peak gust 41 mph (both WNW) at 1:15pm. Abrupt frontal passage at 6:30pm with wind shift from SW to NE. Isolated post-frontal -SHRA 7:00pm-1:00am. At the 29 April morning observation, 31F with winds ENE 5-10 mph and wind chill 26F.
4/30/2019 7:00 AM 0.50 4.2 0.49 4.0 0.36 -SN 10:30am-12:30pm MDT, SN to +SN 12:30-1:00pm, occasional -RASN 1:00-4:00pm, SN to +SN 4:00-5:00pm, occasional -SN 5:00-10:00pm, +SN 10:00-11:00pm, -SN gradually tapering to flurries and mist 11:00pm-3:30am. At 30 April 7:00am observation, -DZ and 31F. Snow measured on slightly elevated snow board at 5:30pm (0.7") and 7:00am (3.5") to yield 4.2" total. Some compaction and melting of snow on ground.
5/1/2019 7:00 AM 0.18 0.1 0.06 1.0 0.23 Cold with persistent low clouds, mist, -DZ, and -SHRA and -SHSN throughout the period, with intermittent SHSN and SHRA. Steadier -SN 3:15-5:00pm MDT. Low temperature during the period 31.1 F (7:00am on 30 April), high temperature 37.4F (2:00pm on 30 April).
5/2/2019 7:00 AM 0.01 T T 0.0 0.00 Intermittent -SHSN and -SHRA 3:15-6:15pm MDT. Snow melted on contact with ground.
5/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/6/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated light sprinkles around 1:40pm MDT.
5/7/2019 6:30 AM 0.07 0.0 0.00 0.0 0.00 Isolated -SHRA during the afternoon, -RA 8:00-8:30pm MDT, -RA 1:30-6:30am.
5/8/2019 7:00 AM 0.05 0.0 0.00 0.0 0.00 DZ and -RA from the 7 May morning observation to 2:00pm MDT. Isolated -SHRA 9:00pm to 3:00am.
5/9/2019 7:00 AM 0.19 0.6 0.16 0.5 0.16 Isolated -RA in the morning, -RA 6:00-8:30pm MDT, -RA 9:30pm-1:00am, -SN 1:00am-7:00am. Snow accumulation on grass/elevated surfaces only. Light winds. High/low temperature on 8 May: 48F/36F. Weather at 7:00am observation (9 May): 33F, -SN, calm wind.
5/10/2019 7:00 AM 0.19 0.1 0.04 0.0 0.00 -SN 7:00-11:00am MDT, -RASN 11:00am-12:30pm, intermittent -SHRA 12:30-2:30pm, -RA with periods of RA and occasional -RASN 2:30-6:00pm, moderate PL 7:00-7:30pm. Low clouds overnight with partial clearing around sunrise. Snow and ice pellet accumulation measured at 6:00pm on 9 May, but frozen precipitation had melted by the morning observation. Melted value of new snowfall estimated (the snow was extremely "wet"). Much of the snow/ice falling during the daytime melted upon contact with the ground.
5/11/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated -SHRA around 2:30-2:45pm MDT. Overnight low temperature 31.9F on 11 May (edited 13 May 2019: this was the the last freezing temperature of the spring).
5/12/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 -SHRA 1:00-2:00pm MDT. A steady -RA 5:50-6:15pm tapering off through 7:00pm. Overnight low 34F (12 May). Moderate frost on the grass -- the last frost of the spring season.
5/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/14/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated -TSRA and -SHRA 7:15-8:05pm MDT. High temperature 80.1F, our first 80F day of the year.
5/15/2019 7:00 AM T 0.0 0.00 0.0 0.00 Widely scattered and occasionally gusty -TSTA between 12:45-5:30pm MDT. Peak wind gust 32 mph (NE) at 4:50pm.
5/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
5/17/2019 7:00 AM T 0.0 0.00 0.0 0.00 Very brief sprinkle around 5:00pm MDT.
5/18/2019 7:00 AM 0.07 0.0 0.00 0.0 0.00 Scattered -TSRA and SHRA, with occasional brief TSRA, between 12:15-7:30pm MDT.
5/19/2019 7:00 AM 0.03 0.0 0.00 0.0 0.00 Brief round of soft, pea-sized hail at 4:50-5:00pm MDT. Hail mixed with rain. Otherwise, isolated sprinkles between 4:40-6:00pm.
5/20/2019 7:00 AM 0.29 0.0 0.00 0.0 0.00 Steady -RA 8:45pm-1:30am MDT tapering to scattered -SHRA and DZ and continuing through the 20 May 2019 7:00am observation. Occasional RA 9:30-10:45pm. Unusually cool, with a 19 May high temperature of 49.9F and an overnight low of 35.4F (6:40am, 20 May). At the 20 May observation: DZ, 36F, winds NE 5 mph gusting to 10 mph.
5/21/2019 6:30 AM 0.74 2.3 0.50 2.0 0.44 Periods of -RA from 7:00am-7:30pm MDT, with breaks around midday. -RA changing to SN and intensifying between 7:30-9:30pm, then -SN 9:30pm until the 6:30am observation. Visibilities occasionally below 1 mile overnight. Snow accumulated on grass and trees, with slush on the secondary roads. Small branches down (minor damage). High/low temperature on 20 May: 42F/33F. Overnight low temperature 32.4F. Weather at 21 May observation: -SN, 33F, winds NNW 3G6 mph. [Liquid equivalent precipitation is a good estimate (by weight) but remains provisional until gauge contents have been melted.]
5/22/2019 7:00 AM 0.02 0.1 0.02 0.0 0.00 -SN from the 6:30am MDT 21 May observation to about 10:00am, then remaining cloudy. All precipitation fell as snow, though some melting occurred on contact. New snowfall total estimated from snow board, given intensity of snow during the 21 May morning observation and duration of the snow. All snow melted by early afternoon. High/low temperature for 21 May: 45F/32F. Overnight low: 33F.
5/23/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 -SHRA 11:20am-12:30pm MDT, -RA 8:00-8:40pm, isolated -SHRA overnight, DZ 6:00-7:00am. Continued unusually cool. High/low temperature on 22 May: 52F/33F. At 23 May observation: 39F with DZ, winds SE 4G9 mph.
5/24/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 DZ and -SHRA 7:00-8:00am MDT, -RA 7:50-8:20pm, occasional -SHRA 9:10-10:00pm. Cold and cloudy through the period with low stratus. Dense fog overnight with visibilities less than 0.5 miles. High/low temperature on 23 May: 43F/36F. Overnight low temperature 34F. The period 19-23 May 2019 was the coldest such mid-May period in the 127+ years of the CSU weather station.
5/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/26/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/27/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 A few raindrops around 4:30pm MDT, then -TSRA 8:25-8:50pm.
5/28/2019 6:00 AM 0.16 0.0 0.00 0.0 0.00 -TSRA 4:10-4:40pm MDT, -RA 1:00-1:30am, -RA around 2:45am, steady RA 4:45am until the 6:00am observation (heaviest around 5:00am). At 6:00am observation: RA, 43F, light W winds.
5/29/2019 7:00 AM 0.25 0.0 0.00 0.0 0.00 RA from the 6:00am MDT observation (28 May) to 7:30am. Occasional -RA from 6:30pm gradually tapering off by 1:30am. Continued cool, with a 28 May high/low temperature of 60F/42F and overnight low 39F.
5/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/31/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/1/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 -TSRA 3:30-3:45pm MDT and again 4:30-5:15pm.
6/2/2019 7:00 AM T 0.0 0.00 0.0 0.00 -SHRA 9:45-10:00pm MDT.
6/3/2019 7:00 AM 0.05 0.0 0.00 0.0 0.00 -TSRA 5:15-6:15 pm MDT. Outflow from a large storm complex over the Greeley-Johnstown area caused SE winds to encounter the foothills and likely made favorable conditions for our storm. Moderate lightning, no hail.
6/4/2019 7:00 AM 0.16 0.0 0.00 0.0 0.00 Short-lived but intense +TSRA 4:20-4:45pm MDT. Gusty NW winds to 29 mph at 4:30pm, along with a temperature from of 21 F (80F @ 3:10pm to 59F @ 4:40pm).
6/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed, but thunder in vicinity around 3:45pm MDT.
6/6/2019 7:00 AM 0.11 0.0 0.00 0.0 0.00 Scattered -TSRA 6:00-9:20pm MDT, with TSRA 7:10-7:30pm. Lightening observed, no hail. Peak wind gust 24 mph from NE at 7:00pm. Single isolated, stationary storm formed at College & Harmony subsequently initiated a larger cluster of slow-moving storms over the Fort Collins area, and we were on the southern edge of this complex.
6/7/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/8/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 Brief, gusty -TSRA 6:00-6:15pm MDT. Peak wind 30 mph (S) at 6:10pm due to outflow from thunderstorm. Warm, with a high of 87F on 7 June 2019.
6/9/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 Clear with moderate easterly winds through mid-afternoon, then a gradual wind shift to NE with overcast stratus associated with a cold front passage between 3:00-4:00pm. -RA around 6:00pm, 9:00-10:15pm, and 12:40-3:30am. Pre-frontal high temperature on 8 June 82F but dropping to 49F by midnight. Overnight low 46F.
6/10/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Clear and unusually cool, with a high of 65.8F and an overnight low of 39.1F (6:15am MDT). Steady, light-moderate SE winds during the day becoming calm overnight.
6/11/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/12/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 Occasional -SHRA 3:00-5:50pm MDT, SHRA 5:50-7:20pm, -SHRA 9:45-10:30pm.
6/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
6/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/16/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA 7:45-8:10pm MDT.
6/17/2019 7:00 AM 0.06 0.0 0.00 0.0 0.00 -TSRA 1:15-2:25pm MDT, -RA around 6:25pm, -TSRA 7:45-8:10pm, -RA 9:40-10:00pm.
6/18/2019 7:00 AM 0.09 0.0 0.00 0.0 0.00 -SHRA 2:00-2:15pm MDT; -TSRA 8:30-10:30pm, briefly TSRA around 8:45pm; -SHRA 11:15pm-1:30am.
6/19/2019 7:00 AM 0.16 0.0 0.00 0.0 0.00 Mostly cloudy and cool. -RA 11:35am-2:15pm MDT (RA at times), TSRA 3:30-3:45pm with frequent lightning (unknown if hail fell during this time) tapering to -RA by 4:00pm, -RA 7:00-7:20pm, occasional -SHRA 7:20-8:00pm, -RA around 2:30am. Daytime high temperature 68F (18 June) and overnight low 48F (19 June).
6/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/21/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -SHRA 1:45-1:55pm MDT, -TSRA 7:15-7:35pm.
6/22/2019 7:00 AM 0.74 0.0 0.00 0.0 0.00 Isolated -SHRA 7:30-8:30am MDT and around 10:30am. RA 1:00-1:30pm. -SHRA 2:00-4:00pm. -RA 5:00-7:00pm. Steady -RA and RA and occasional +RA 8:30pm-6:30am (heaviest intensity around 9:30-10:30pm), with isolated thunder. Unusually cool, with a 21 June 2019 high temperature of 63.5F (just after midnight)...steady temperatures in the mid-50s F in the afternoon.
6/23/2019 7:00 AM 0.25 0.0 0.00 0.0 0.00 -RA 4:15-4:50pm MDT, +RA 4:50-5:45pm, -RA 8:00-9:00pm. Continued cool, with a 22 June high/low temperature of 62.4F/44.8F and a 23 June morning temperature of 41.5F.
6/24/2019 7:00 AM 0.05 0.0 0.00 0.0 0.00 -TSRA 9:40-11:35am MDT, with TSRA briefly around 10:30am. -RA 8:30-9:15pm.
6/25/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA 10:00-10:40pm MDT.
6/26/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA 2:05-3:00pm MDT.
6/27/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 26 June 2019 high temperature 89.9F, low 47.4F. Our first 90F+ day of the year (high temperature in 26 June was 90F), and somewhat late. In the 1981-2010 climatological period, the average first 90F+ day of the year is 11 June, and the latest during this period was 9 July (2009).
6/28/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
6/29/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 28 June high/low temperature 96.0F/52.0F. Strong SW winds throughout most of the night (28-29 June): maximum 10-minute sustained winds 18 mph (9:50pm MDT), with gusts to 36 mph (9:40pm). The high winds kept temperatures very warm overnight (87F at 11:00pm, 77F at 3:30am). Winds gradually diminished by sunrise. Temperature at the 7:00am observation 67.7F, the lowest temperature for 29 June.
6/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Continued hot and dry. Low temperature on 29 June 2019 (67.7F) warmest low temperature since station began records in March 2016.
7/1/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA around 10:15pm MDT.
7/2/2019 7:00 AM 0.39 0.0 0.00 0.0 0.00 -SHRA 4:15-5:20pm MDT, -RA 5:20-5:50pm and 6:25pm, TSRA 7:30-8:45pm with +TSRA 8:10-8:40pm. Winds not particularly strong during/near the intense rainfall. No hail observed as I was out of town.
7/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/5/2019 7:00 AM 0.09 0.0 0.00 0.0 0.00 +TSRA 7:55-8:10pm MDT, then -TSRA 8:10-8:30pm. Pea to marble sized hail around 8:00pm with the largest stones measuring 0.7" in diameter. Ground coverage unknown as I was out of town. Garden plants had a few holes in the leaves, but no major damage. A few leaves down from the trees. Hail serendipitously imprinted onto aluminum-foil covered baking sheet temporarily holding indoor plants outdoors. Pingpong ball-sized hail reported a few miles to our north in the Paragon Point neighborhood, where car damage was also reported. Fortunately, only pea-sized hail was reported at City Park where many had gathered for the 4th of July fireworks.
7/6/2019 7:00 AM 0.38 0.0 0.00 0.0 0.00 +TSRA 9:05-9:30pm MDT, then -TSRA 9:30-10:25pm. Very intense rainfall between 9:05-9:20pm (0.10" in the 10-minute reading ending at 9:10pm, 0.23" in the 10-minute reading ending 9:20pm... therefore, 0.33" in 15 minutes). Strong south wind gust (presumably from storm outflow at it approached from the south) of 33 mph at around 9:05pm. Presence of hail and degree of flooding unknown as I was out of town.
7/7/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -TSRA 3:05-3:30pm MDT.
7/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/9/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA 1:50-2:30pm MDT and again 7:10-7:25pm.
7/10/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/11/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/12/2019 7:00 AM T 0.0 0.00 0.0 0.00 A few sprinkles from a dissipating thunderstorm cell at 9:20pm MDT. Temperatures remained in the upper 70s F until 2:00am due to sustained WSW winds, then dipped into the 60s F as winds calmed.
7/13/2019 7:00 AM T 0.0 0.00 0.0 0.00 Isolated -SHRA 7:00-7:30pm MDT.
7/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/15/2019 7:00 AM 0.20 0.0 0.00 0.0 0.00 Two rounds of storms. Isolated -TSRA 1:35-2:25pm MDT, then TSRA 2:25-3:15pm (0.05" from round #1). Peak wind gust 24 mph (WSW) at 2:40pm. Temperature dropped from 93F (1:00pm) to 72F (3:00pm). TSRA 7:50-9:30pm with +TSRA 8:40-9:00pm. No hail observed.
7/16/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 Scattered -TSRA 4:05-6:15pm MDT. High temperature of 88.1F recorded at 11:10am, then mostly cloudy and not as hot in the afternoon.
7/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Hot: high 98.4F on 18 July 2019. Overnight low 57.5F.
7/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Heat continues... high temperature 99F on 20 July 2019 (low 58F).
7/21/2019 7:00 AM 0.09 0.0 0.00 0.0 0.00 -TSRA 3:27-4:40pm MDT, scattered TSRA 6:40-9:05pm, -RA 10:25-10:40pm.
7/22/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 -TSRA 3:25-3:55pm MDT, then -RA 4:05-5:25pm with RA around 4:45pm.
7/23/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA 3:55-4:30pm MDT.
7/24/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/25/2019 7:00 AM 0.04 0.0 0.00 0.0 0.00 Scattered -TSRA 4:10-8:15pm MDT.
7/26/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA 1:30-2:30pm MDT, then -SHRA 3:00-4:30pm.
7/27/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/28/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 Overcast with isolated sprinkles throughout the morning, then a brief round of -RA 4:00-4:20pm MDT.
7/29/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
7/31/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA with just a few sprinkles 4:45-5:05pm MDT.
8/1/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -TSRA 10:30-11:25pm MDT.
8/2/2019 7:00 AM 0.02 0.0 0.00 0.0 0.00 -TSRA, with occasional TSRA, 1:45-3:05pm MDT.
8/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
8/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/5/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
8/6/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -TSRA 1:50-2:20pm.
8/7/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/8/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA 3:40-3:55pm MDT, -TSRA 4:20-4:50pm, isolated -SHRA 4:10-6:15am. Very light sprinkles at 8 August observation.
8/9/2019 7:00 AM T 0.0 0.00 0.0 0.00 -RA 2:15-2:40pm MDT, -TSRA 3:40-4:20pm, -RA around 2:30am.
8/10/2019 7:00 AM T 0.0 0.00 0.0 0.00 -TSRA 5:30-7:00pm MDT, -SHRA 8:00-8:10pm, -RA 6:05-7:00am.
8/11/2019 7:00 AM 0.05 0.0 0.00 0.0 0.00 -RA 7:00-9:55am MDT, with a period of RA 8:45-9:00am. -RA 11:30am-12:30pm, 2:15-3:15pm.
8/12/2019 7:00 AM T 0.0 0.00 0.0 0.00 -SHRA 2:00-3:10pm MDT.
8/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/14/2019 7:00 AM 0.03 0.0 0.00 0.0 0.00 -TSRA 9:15-9:40pm MDT. Patchy fog this morning.
8/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/16/2019 7:00 AM T 0.0 0.00 0.0 0.00 An isolated -SHRA with severe winds to 55 mph at 6:35pm MDT. Temperatures climbed to 93.9F during the afternoon, but then scattered but generally weak -TSRA and -SHRA developed and moved rapidly off the foothills. One isolated -SHRA clearly produced a lot of virga and moved almost due east toward our house. Although it weakened rapidly after moving off of the foothills (according to radar), the evaporative cooling and outflow was extremely strong but short-lived and produced a wind gust of 55 mph (W) at 6:35pm. The outflow boundary can even be seen on radar. The 6:30-6:40pm 10-minute average wind speed was only 12 mph (WNW), and the next highest peak gust within the 10-minute data averaging windows was only 25 mph (6:40-6:50pm). The strong gust brought several 2-3" diameter branches down in the honey locust tree in the front yard. More branches, some larger, were down in the neighborhood. This was a fairly localized event: the peak wind gust at APRSWXNET/CWOP station CW2749 (2 mi S, in Loveland), the next closest reliable station, measured a peak gust of 34 mph at 6:39pm. KFNL (Fort Collins-Loveland Regional AP, 3 mi ESE) registered a peak gust of 49.5 mph at 6:56pm.
8/17/2019 7:00 AM T 0.0 0.00 0.0 0.00 One or two isolated, gusty -TSRA between 5:45-7:15pm MDT with just a few sprinkles. Wind gusts to 29 mph, again from the W, between 7:50-8:20pm.
8/18/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -TSRA 1:40-1:55pm MDT, 2:25-2:40pm. -RA 6:15-6:35pm with SW gusts to 33 mph at 6:20pm (max 10-minute sustained wind 14 mph, also from SW).
8/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/22/2019 7:00 AM T 0.0 0.00 0.0 0.00 A few sprinkles and a rumble of thunder during the afternoon (around 4:45-5:00pm MDT).
8/23/2019 7:00 AM T 0.0 0.00 0.0 0.00 Scattered -TSRA 7:00-8:00pm MDT, then -SHRA 8:00-8:45pm. Faint wildland fire smoke noticed this morning.
8/24/2019 7:00 AM T 0.0 0.00 0.0 0.00 Gusty -TSRA 5:55-6:10pm MDT. Max 10-minute sustained wind 11 mph (SW) with peak gust to 40 mph (SW) between 6:00-6:10pm. Small branches down.
8/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/26/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Very hot and dry. High temperature 95F, with relative humidity 15-17% during much of the afternoon.
8/27/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 First day with a high temperature less than 80F since June: high 78.3F
8/28/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Overnight low temperature 47.9F (also the 7:00am MDT temperature). This is the first low temperature less than 50F since June.
8/29/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/31/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/1/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/2/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Very hot and dry. 1 September 2019 high temperature 96.0F, with afternoon relative humidity down to about 20%. Light winds.
9/3/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Extreme heat continues! 2 September 2019 high temperature 98.4F, the hottest ever September temperature at this station (since May 2016). The high temperature at the CSU main campus weather station was 99F, setting the record for the hottest September temperature since records began in 1893 and breaking the previous record of 98F set on 3 Sept 2017.
9/4/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/5/2019 7:00 AM 0.01 0.0 0.00 0.0 0.00 -SHRA 12:45-1:00pm MDT and 7:10-7:30pm.
9/6/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed. Hot, with a high temperature of 95.8F.
9/7/2019 7:00 AM 0.05 0.0 0.00 0.0 0.00 Cooler with low clouds through early afternoon, a period of clearing, and then showers. -SHRA around 3:00pm MDT and around 4:00pm. -RA 4:40-5:05pm and 11:10pm-12:00am with RA 11:30-11:55pm.
9/8/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/9/2019 7:00 AM 0.33 0.0 0.00 0.0 0.00 Cool and pleasant with late-day rain. High temperature 71.7F, the coolest high since 23 June. -SHRA 4:30-5:05pm MDT. +TSRA 5:50-6:05pm tapering to -RA and ending 6:30pm. -SHRA around 8:00pm. -RA 9:45-10:20pm. RA 11:00-11:40pm tapering to -RA and ending 11:55pm.
9/10/2019 7:00 AM 0.06 0.0 0.00 0.0 0.00 -TSRA 1:05-2:00am MDT, with a brief period of TSRA around 1:30am.
9/11/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/12/2019 7:00 AM 0.08 0.0 0.00 0.0 0.00 A few sprinkles -TSRA 2:30-3:05pm MDT, -SHRA around 3:35pm, -TSRA 4:40-5:10pm, TSRA 5:30-5:50pm, -RA 5:50-6:15pm and -SHRA 9:30-10:30pm.
9/13/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/14/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/15/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/16/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/17/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/18/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/19/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/20/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/21/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 No precipitation observed.
9/22/2019 7:00 AM T 0.0 0.00 0.0 0.00 A few sprinkles from 5:55-6:10pm MDT.
9/23/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/24/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/25/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/26/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00
9/27/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Moderate WNW winds last evening ahead of a cold front. The temperature dropped to 60F at 9:00pm MDT, then rose to 72F just after midnight, and then fell back to 50F by 6:45am. Dry cold frontal passage with abrupt shift from WNW to NNE winds around 2:30am.
9/28/2019 7:00 AM 0.19 0.0 0.00 0.0 0.00 A brief sprinkle around 2:30pm and 3:30pm MDT, then occasional -RA 4:00-10:45pm with RA 8:20-8:50pm.
9/29/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Low clouds and fog at the 29 September observation. Visibility down to about 1 mile.
9/30/2019 7:00 AM 0.00 0.0 0.00 0.0 0.00 Unusually warm, with a 29 September high temperature of 86F.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground