Station Overview Station Location
Station Number CO-LR-412 Latitude 40.5968
Station Name Fort Collins 2.9 NW Longitude -105.1329
County Larimer Elevation (ft) 5112



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 17 1.18 1.57 31 1.57 31 0.00 0 0 6 3 2.4 3 1
Nov 17 0.82 0.73 30 0.73 30 0.00 0 0 6 2 4.5 1 1
Dec 17 0.51 0.47 31 0.47 31 0.00 0 0 8 3 8.7 6 4
Jan 18 0.38 0.44 31 0.44 31 0.00 0 0 4 4 6.5 5 4
Feb 18 0.43 0.95 28 0.95 28 0.00 0 0 10 4 16.5 9 3
March 18 1.62 0.75 31 0.75 31 0.00 0 0 6 4 2.3 2 1
April 18 2.08 0.77 30 0.77 30 0.00 0 0 7 3 2.9 3 1
May 18 2.47 4.56 31 4.56 31 0.00 0 0 13 7 0.0 0 0
June 18 2.49 1.11 30 1.11 30 0.00 0 0 6 7 0.0 0 0
July 18 1.51 2.81 31 2.81 31 0.00 0 0 12 4 0.0 0 0
Aug 18 1.58 0.39 31 0.39 31 0.00 0 0 8 3 0.0 0 0
Sept 18 1.37 0.64 30 0.64 30 0.00 0 0 6 3 0.0 0 0
Water Year Totals: 16.44" 15.19" 365 days 15.19" 365 0.00" 0 days 0 92 days 47 days 43.8" 29 days 15 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
10/1/2017 T
10/2/2017 0.30
10/3/2017 0.35
10/4/2017 T
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 0.00
10/8/2017 0.00
10/9/2017 0.77
10/10/2017 0.13
10/11/2017 0.00
10/12/2017 0.00
10/13/2017 0.00
10/14/2017 0.00
10/15/2017 0.00
10/16/2017 0.00
10/17/2017 0.00
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.00
10/21/2017 0.00
10/22/2017 0.00
10/23/2017 0.00
10/24/2017 0.00
10/25/2017 0.00
10/26/2017 0.00
10/27/2017 T
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 0.01
10/31/2017 0.01
11/1/2017 0.00
11/2/2017 0.00
11/3/2017 0.00
11/4/2017 0.00
11/5/2017 0.14
11/6/2017 0.03
11/7/2017 0.42
11/8/2017 T
11/9/2017 0.00
11/10/2017 0.00
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 0.00
11/14/2017 0.00
11/15/2017 0.00
11/16/2017 0.00
11/17/2017 0.00
11/18/2017 T
11/19/2017 0.00
11/20/2017 0.00
11/21/2017 0.11
11/22/2017 0.02
11/23/2017 0.00
11/24/2017 0.00
11/25/2017 0.01
11/26/2017 0.00
11/27/2017 0.00
11/28/2017 0.00
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 0.00
12/2/2017 0.00
12/3/2017 0.00
12/4/2017 0.01
12/5/2017 0.00
12/6/2017 0.00
12/7/2017 0.00
12/8/2017 0.00
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 0.00
12/13/2017 0.00
12/14/2017 0.11
12/15/2017 0.00
12/16/2017 0.00
12/17/2017 0.01
12/18/2017 0.00
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.10
12/22/2017 0.06
12/23/2017 0.00
12/24/2017 0.08
12/25/2017 0.00
12/26/2017 0.01
12/27/2017 T
12/28/2017 T
12/29/2017 0.00
12/30/2017 T
12/31/2017 0.09
Day of YearDaily PrcpMultiday Prcp
1/1/2018 T
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 T
1/8/2018 0.00
1/9/2018 0.00
1/10/2018 0.00
1/11/2018 T
1/12/2018 0.00
1/13/2018 T
1/14/2018 0.00
1/15/2018 0.02
1/16/2018 0.08
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.21
1/22/2018 0.13
1/23/2018 0.00
1/24/2018 0.00
1/25/2018 0.00
1/26/2018 0.00
1/27/2018 0.00
1/28/2018 0.00
1/29/2018 0.00
1/30/2018 0.00
1/31/2018 0.00
2/1/2018 0.29
2/2/2018 0.05
2/3/2018 0.00
2/4/2018 T
2/5/2018 0.01
2/6/2018 T
2/7/2018 0.00
2/8/2018 0.00
2/9/2018 T
2/10/2018 0.14
2/11/2018 0.01
2/12/2018 T
2/13/2018 0.01
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.00
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.02
2/20/2018 0.29
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.01
2/24/2018 0.12
2/25/2018 0.00
2/26/2018 0.00
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 T
3/2/2018 0.00
3/3/2018 0.00
3/4/2018 0.00
3/5/2018 0.00
3/6/2018 0.00
3/7/2018 0.00
3/8/2018 0.00
3/9/2018 0.00
3/10/2018 0.00
3/11/2018 T
3/12/2018 0.00
3/13/2018 T
3/14/2018 0.00
3/15/2018 0.00
3/16/2018 0.07
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.30
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.00
3/23/2018 0.00
3/24/2018 T
3/25/2018 0.00
3/26/2018 0.02
3/27/2018 0.02
3/28/2018 0.00
3/29/2018 0.33
3/30/2018 0.01
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.02
4/2/2018 T
4/3/2018 0.00
4/4/2018 0.00
4/5/2018 0.00
4/6/2018 0.00
4/7/2018 0.17
4/8/2018 0.00
4/9/2018 0.02
4/10/2018 T
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 T
4/14/2018 0.00
4/15/2018 0.00
4/16/2018 0.00
4/17/2018 0.00
4/18/2018 0.00
4/19/2018 0.00
4/20/2018 0.00
4/21/2018 0.44
4/22/2018 0.07
4/23/2018 0.00
4/24/2018 0.04
4/25/2018 0.01
4/26/2018 0.00
4/27/2018 0.00
4/28/2018 0.00
4/29/2018 0.00
4/30/2018 0.00
5/1/2018 T
5/2/2018 0.02
5/3/2018 1.69
5/4/2018 0.67
5/5/2018 T
5/6/2018 T
5/7/2018 0.00
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 0.00
5/11/2018 0.00
5/12/2018 0.24
5/13/2018 0.26
5/14/2018 0.10
5/15/2018 0.01
5/16/2018 0.00
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.14
5/20/2018 0.18
5/21/2018 0.03
5/22/2018 T
5/23/2018 1.04
5/24/2018 T
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 T
5/29/2018 0.11
5/30/2018 T
5/31/2018 0.07
6/1/2018 T
6/2/2018 0.00
6/3/2018 0.00
6/4/2018 0.00
6/5/2018 0.00
6/6/2018 0.00
6/7/2018 T
6/8/2018 0.00
6/9/2018 0.00
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 0.00
6/15/2018 T
6/16/2018 T
6/17/2018 T
6/18/2018 0.27
6/19/2018 0.03
6/20/2018 0.56
6/21/2018 0.00
6/22/2018 0.03
6/23/2018 0.00
6/24/2018 0.08
6/25/2018 0.14
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 T
6/29/2018 T
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.53
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 T
7/5/2018 0.08
7/6/2018 0.00
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 0.02
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.92
7/14/2018 0.00
7/15/2018 0.00
7/16/2018 0.29
7/17/2018 T
7/18/2018 0.02
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 T
7/23/2018 0.04
7/24/2018 0.40
7/25/2018 0.03
7/26/2018 0.24
7/27/2018 0.00
7/28/2018 T
7/29/2018 0.07
7/30/2018 0.17
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.03
8/5/2018 0.05
8/6/2018 0.08
8/7/2018 0.00
8/8/2018 0.00
8/9/2018 0.04
8/10/2018 0.00
8/11/2018 0.00
8/12/2018 0.00
8/13/2018 0.00
8/14/2018 0.00
8/15/2018 0.01
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 0.00
8/19/2018 0.09
8/20/2018 0.00
8/21/2018 0.00
8/22/2018 0.03
8/23/2018 T
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.06
8/27/2018 0.00
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 T
8/31/2018 T
9/1/2018 T
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.01
9/6/2018 0.00
9/7/2018 0.01
9/8/2018 0.00
9/9/2018 0.00
9/10/2018 0.01
9/11/2018 0.00
9/12/2018 T
9/13/2018 0.00
9/14/2018 0.00
9/15/2018 0.00
9/16/2018 0.00
9/17/2018 0.00
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 0.54
9/21/2018 0.00
9/22/2018 0.00
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.00
9/26/2018 0.00
9/27/2018 0.00
9/28/2018 T
9/29/2018 0.06
9/30/2018 0.01



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 7:00 AM T M M M M We had enough to wet the ground yesterday and I didn’t check the gauge last night. It was windy at one point (heard the wind whistling through the window), and the inside gauge was wet this morning, but not enough to measure a hundredth.
10/2/2017 7:00 AM 0.30 M M M M 0.05 during the day yesterday - a few showers scattered throughout the day; 0.25 overnight
10/3/2017 7:00 AM 0.35 M M M M A steady light rain through most of the morning and afternoon yesterday - didn't get a walk in until evening. Forgot to mention yesterday that I saw snow on the tops of the foothills on the west side of Horsetooth reservoir. This morning it is foggy, so I can't see that far to tell. First frost of the season too - with raindrops, frost, and fog, it is a beautiful morning. I was so busy taking a few pictures, I didn't think about the visibility with the fog - it is likely a few tenths of a mile and when I rode my bike in to work, I was a little nervous at times.
10/4/2017 7:00 AM T M M M M
10/5/2017 7:00 AM 0.00 0.0 M M M
10/6/2017 7:00 AM 0.00 0.0 M M M
10/7/2017 7:00 AM 0.00 0.0 M M M
10/8/2017 7:00 AM 0.00 0.0 M M M
10/9/2017 7:00 AM 0.77 2.2 0.39 2.0 M The gauge had slush in it this morning - a combination of rain and snow. My husband said it looked white on the grass at 12:30 AM. I wasn't awake at that time but confirm that it looked white at 3AM. On my wood plank, I measured 2.2" of snow this morning with a water equivalent of 0.39. Since temperatures have been hovering around freezing and the ground and board were warm, snow could have melted. This is my best estimate of snowfall.
10/10/2017 7:00 AM 0.13 T M T M It was snowing yesterday in the morning, but by the time I got home, I couldn’t tell the amount because it was melted plus much of what had fallen the previous day. So I put a trace in for new snow. And beautiful frost!
10/11/2017 7:00 AM 0.00 0.0 M T M Amazingly, still a bit off snow this morning in the “shady” areas and frost!
10/12/2017 7:00 AM 0.00 0.0 M M M
10/13/2017 7:00 AM 0.00 0.0 M M M
10/14/2017 7:00 AM 0.00 0.0 M M M
10/15/2017 7:00 AM 0.00 0.0 M M M
10/16/2017 7:00 AM 0.00 0.0 M M M
10/17/2017 7:00 AM 0.00 0.0 M M M
10/18/2017 7:00 AM 0.00 0.0 M M M
10/19/2017 7:00 AM 0.00 0.0 M M M
10/20/2017 7:00 AM 0.00 0.0 M M M
10/21/2017 7:00 AM 0.00 0.0 M M M
10/22/2017 7:00 AM 0.00 0.0 M M M
10/23/2017 7:00 AM 0.00 0.0 M M M
10/24/2017 7:00 AM 0.00 0.0 M M M
10/25/2017 7:00 AM 0.00 0.0 M M M
10/26/2017 7:00 AM 0.00 0.0 M M M
10/27/2017 7:00 AM T T M M M
10/28/2017 7:00 AM 0.00 0.0 M M M
10/29/2017 7:00 AM 0.00 0.0 M M M
10/30/2017 7:00 AM 0.01 0.1 M M M
10/31/2017 7:00 AM 0.01 0.1 M M M
11/1/2017 7:00 AM 0.00 0.0 M M M WINDY - and just recently got windy as the themperature increased and I started hearing the whistling through a west window.
11/2/2017 7:00 AM 0.00 0.0 M M M
11/3/2017 7:00 AM 0.00 0.0 M M M
11/4/2017 7:00 AM 0.00 0.0 M M M
11/5/2017 7:00 AM 0.14 M M M M I was out of town, my husband checked the gauge :)
11/6/2017 7:00 AM 0.03 M M M M I was out of town, my husband checked the gauge :)
11/7/2017 7:00 AM 0.42 4.5 0.40 4.5 0.40 Started out as rain ~7 PM, turned to snow by ~8 PM. The snow was slushy on the bottom and fluffy on the top. Very pretty.
11/8/2017 7:00 AM T T M M M
11/9/2017 7:00 AM 0.00 0.0 M M M
11/10/2017 7:00 AM 0.00 0.0 M M M
11/11/2017 7:00 AM 0.00 0.0 M M M
11/12/2017 7:00 AM 0.00 0.0 M M M
11/13/2017 7:00 AM 0.00 0.0 M M M
11/14/2017 7:00 AM 0.00 0.0 M M M
11/15/2017 7:00 AM 0.00 0.0 M M M
11/16/2017 7:00 AM 0.00 0.0 M M M
11/17/2017 7:00 AM 0.00 0.0 M M M
11/18/2017 7:00 AM T M M M M It rained but I wasn’t here and the gauge was dry when I checked at 7:30 PM. It was very windy. - may have gotten a trace overnight too, gauge dry in the morning.
11/19/2017 7:00 AM 0.00 0.0 M M M
11/20/2017 7:00 AM 0.00 0.0 M M M
11/21/2017 7:00 AM 0.11 M M M M Raining this morning
11/22/2017 7:00 AM 0.02 M M M M Rain yesterday morning
11/23/2017 7:00 AM 0.00 0.0 M M M
11/24/2017 7:00 AM 0.00 0.0 M M M
11/25/2017 7:00 AM 0.01 M M M M
11/26/2017 7:00 AM 0.00 0.0 M M M
11/27/2017 7:00 AM 0.00 0.0 M M M
11/28/2017 7:00 AM 0.00 0.0 M M M
11/29/2017 7:00 AM 0.00 0.0 M M M
11/30/2017 7:00 AM 0.00 0.0 M M M
12/1/2017 7:00 AM 0.00 0.0 M M M
12/2/2017 7:00 AM 0.00 0.0 M M M
12/3/2017 7:00 AM 0.00 0.0 M M M
12/4/2017 7:00 AM 0.01 M M M M Windy too.
12/5/2017 7:00 AM 0.00 0.0 M M M
12/6/2017 7:00 AM 0.00 0.0 M M M
12/7/2017 7:00 AM 0.00 0.0 M M M
12/8/2017 7:00 AM 0.00 0.0 M M M
12/9/2017 7:00 AM 0.00 0.0 M M M
12/10/2017 7:00 AM 0.00 0.0 M M M
12/11/2017 7:00 AM 0.00 0.0 M M M
12/12/2017 7:00 AM 0.00 0.0 M M M
12/13/2017 7:00 AM 0.00 0.0 M M M
12/14/2017 7:00 AM 0.11 2.6 0.11 2.6 M The gauge was “drifted” and melted to 0.09”. The core was more representative of the rest of the yard, so I used that. Winds more north easterly and there was snow stuck to that side of things.
12/15/2017 7:00 AM 0.00 0.0 M M M
12/16/2017 7:00 AM 0.00 0.0 M M M
12/17/2017 7:00 AM 0.01 0.0 M T M It rained and the ground was wet. When I went out to the gauge to dump out the contents, the grass and wood mulch was slippery. The gauge was coated with ice and there was a “dusting” of grauple bits. This has to be melted to be measured. At around 9, we noticed dripping off the roof - was it raining again? Upon closer inspection, no - it was that freezing rain that had melted. Definitely points out the different heat capacities of materials... So, in the long rain, it’s a small amount of rain (and some of it froze on surface and some of it didn’t) with a small amount of grauple - not sure if this qualifies for freezing rain or sleet.
12/18/2017 7:00 AM 0.00 0.0 M M M
12/19/2017 7:00 AM 0.00 0.0 M M M
12/20/2017 7:00 AM 0.00 0.0 M M M
12/21/2017 7:00 AM 0.10 1.6 0.10 1.5 M Gauge was 0.08 but drifted, used the core for reporting.
12/22/2017 7:00 AM 0.06 0.5 0.06 1.5 M Gauge was 0.04 water equivalent but drifted; used the core for reporting.
12/23/2017 7:00 AM 0.00 0.0 M M M
12/24/2017 7:00 AM 0.08 1.3 M M M A friend checked the gauge for us while we were out of town :)
12/25/2017 7:00 AM 0.00 0.0 M M M
12/26/2017 7:00 AM 0.01 0.1 M M M A friend checked the gauge for us while we were out of town :)
12/27/2017 7:00 AM T T M M M A friend checked the gauge for us while we were gone :)
12/28/2017 7:00 AM T T M M M
12/29/2017 7:00 AM 0.00 0.0 M M M Very windy early this morning - it flipped our plastic lawn chairs (first time I’ve seen that) and rolled an empty 70 gal water container (we’ve seen that before). The power was out for a little while.
12/30/2017 7:00 AM T T M M M
12/31/2017 7:00 AM 0.09 2.6 0.09 2.5 M Gauge had 0.08 liquid equivalent and snow was uneven, so I used the core
1/1/2018 7:00 AM T 0.1 M M M
1/2/2018 7:00 AM 0.00 0.0 M M M
1/3/2018 7:00 AM 0.00 0.0 M M M
1/4/2018 7:00 AM 0.00 0.0 M M M
1/5/2018 7:00 AM 0.00 0.0 M M M
1/6/2018 7:00 AM 0.00 0.0 M M M
1/7/2018 7:00 AM T M M M M
1/8/2018 7:00 AM 0.00 0.0 M M M
1/9/2018 7:00 AM 0.00 0.0 M M M
1/10/2018 7:00 AM 0.00 0.0 M M M
1/11/2018 7:00 AM T M M M M
1/12/2018 7:00 AM 0.00 0.0 M M M
1/13/2018 7:00 AM T T M M M Snow and rain showers in mid-afternoon.
1/14/2018 7:00 AM 0.00 0.0 M M M
1/15/2018 7:45 AM 0.02 0.2 M 0.2 M Mostly graupel-like.
1/16/2018 7:00 AM 0.08 2.0 M 2.0 M Didn’t get to do a core
1/17/2018 7:00 AM 0.00 0.0 M M M
1/18/2018 7:00 AM 0.00 0.0 M M M
1/19/2018 7:00 AM 0.00 0.0 M M M
1/20/2018 7:00 AM 0.00 0.0 M M M
1/21/2018 7:45 AM 0.21 2.8 0.21 2.5 0.21 Amazingly, the gauge and core had the same water content. The gauge had 0.01 freezing rain and the snow was 6” on one side and 1” on the other. The core may have had a slight influence of wind, but I didn't get all the freezing rain scraped up.
1/22/2018 7:00 AM 0.13 1.4 0.13 3.0 M Theis is the hard type of storm to measure - with wind. The gauge had 0.09. The core had 1.4” new snow and 0.13” water. Around the yard, the measurements for total snow were from 2” to 5” and few bare spots.
1/23/2018 7:00 AM 0.00 0.0 M M M
1/24/2018 7:00 AM 0.00 0.0 M M M
1/25/2018 7:00 AM 0.00 0.0 M M M
1/26/2018 7:00 AM 0.00 0.0 M M M
1/27/2018 7:00 AM 0.00 0.0 M M M
1/28/2018 7:00 AM 0.00 0.0 M M M
1/29/2018 7:00 AM 0.00 0.0 M M M
1/30/2018 7:00 AM 0.00 0.0 M M M
1/31/2018 7:00 AM 0.00 0.0 M M M
2/1/2018 7:00 AM 0.29 5.0 0.29 5.0 M The gauge snow looked dense near the bottom and fluffy on the top. It was 9" on one side and 4" on the other. The core was 5" and other places around the yard measured 4.9-5.1", so I went with that. It came in with 0.29" liquid.
2/2/2018 7:00 AM 0.05 0.9 M M M The snow in the gauge was melted by the time I got home and so was the board, so I estimated the snow amount based on surrounding values
2/3/2018 7:00 AM 0.00 0.0 M M M
2/4/2018 7:00 AM T M M M M Snow/rain squall in the afternoon yesterday - with rainbows ! :)
2/5/2018 7:00 AM 0.01 T M M M Trace of snow yesterday - there could have been measurable, but I didn't get out late in the day to check. It was windy last night and this morning at ~5:50 a squall came through (leading edge of the front?). Judging from the whistling sounds in the house, we had gusts to at least 50. We heard a transformer blow across the street and the power flicked on and off a few times. Luckily for us, it stayed on. There was 0.01 in the gauge from the rain this morning when I went out at 7. There could have been another 0.01 and it already evaporated as it is still quite breezy and the pavement is drying.
2/6/2018 7:00 AM T T M M M In the afternoon, it was sunny and then suddenly cloudy and I hadn't realized that it had precipitated. I saw a sundog/parahelia this morning :) When I got home yesterday, there was remnant graupel on the little bit of snow/ice layer in the back yard in the shade.
2/7/2018 7:00 AM 0.00 0.0 M M M Light frost on the ground and cloudy - mid 20s and warmer than expected so I was able to ride my bike :)
2/8/2018 7:00 AM 0.00 0.0 M M M Partly cloudy with pretty pink highlights before sunrise :)
2/9/2018 7:00 AM T T M M M Fog this morning and rime forming on trees - not at my house, but up at the office. Beautiful! (Turned out the fog persisted through the day near the office and I noticed as I went home that the fog and frost were in pockets, not widespread. So I should really be reporting this part in the parenthesis on the 10th.)
2/10/2018 9:00 AM 0.14 2.6 0.14 M M We slept in and I didn’t get out to measure until 9. The snow was light and fluffy - like a typical mid-winter Colorado snow. The gauge had a depression in the center (settling?) and the water equivalent was 0.12. Wind had blown snow flakes on the picnic table under the covered area, so I used the core to report 0.14”
2/11/2018 7:00 AM 0.01 0.2 M M M Cloudy and light snow through the morning. Low this morning of 1.2F under the trees. Christman Field has been down, but I suspect it would have been colder there.
2/12/2018 7:00 AM T T M M M The Colorado winter that I remember is here.
2/13/2018 7:00 AM 0.01 0.2 M M M Light snow
2/14/2018 7:00 AM 0.00 0.0 M M M
2/15/2018 7:00 AM 0.00 0.0 M M M
2/16/2018 7:00 AM 0.00 0.0 M M M
2/17/2018 7:00 AM 0.00 0.0 M M M
2/18/2018 7:00 AM 0.00 0.0 M M M
2/19/2018 7:00 AM 0.02 1.2 0.02 M M Very light and fluffy snow - I’m not surprised that 1.2” melted down to only 0.02. Both the gauge and the core value SWE were the same. Gorgeous warm day yesterday - temps into the low 60sF. Brrr this morning.
2/20/2018 7:00 AM 0.29 3.4 0.31 M M Gauge in snow was not even and the SWE was 0.26; I didn’t have time to go all around the yard, the core seemed on the higher end, at 0.31” for the SWE. I went with 0.29”. Cold this morning -8F under the trees - brrrr
2/21/2018 7:00 AM 0.00 0.0 M M M
2/22/2018 7:00 AM 0.00 0.0 M M M
2/23/2018 7:00 AM 0.01 0.2 M M M Snow in the evening.
2/24/2018 7:00 AM 0.12 2.8 0.12 4.0 M Gauge had 0.11 SWE; core had 0.12 and went with that since the 2 were similar and it was a little breezy
2/25/2018 7:00 AM 0.00 0.0 M 3.0 M Windy and feeling cold. I admit it was beautiful to watch the snow be knocked off the trees and swirled in to the air and to watch the snow streaming off the roof and forming vortexes :)
2/26/2018 7:00 AM 0.00 0.0 M M M Breezy in the morning, less so in the afternoon. It felt warm in the sun although it was only mid 30sF
2/27/2018 7:00 AM 0.00 0.0 M M M
2/28/2018 7:00 AM 0.00 0.0 M M M
3/1/2018 7:00 AM T T M T M There was a brief snow shower yesterday afternoon. Frost this morning.
3/2/2018 7:00 AM 0.00 0.0 M T M Beautiful morning with the full moon. Snow lingering on the north facing shaded sides.
3/3/2018 7:00 AM 0.00 0.0 M M M
3/4/2018 7:00 AM 0.00 0.0 M M M Sunny! - good for hanging out laundry and solar baking ;)
3/5/2018 7:00 AM 0.00 0.0 M M M Woke up to whistling sounds from the chimney and loud thumping in the attic. Turns out the thumping was from the newly "fixed" shingles on the roof that likely didn't have enough time to set. Sounded terribly though.
3/6/2018 7:00 AM 0.00 0.0 M M M Not as windy as forecasted for yesterday - which was good. No more shingles came off.
3/7/2018 7:00 AM 0.00 0.0 M M M Pretty shimmering frost in the sunlight this morning. Temperatures down to 15F at the house.
3/8/2018 7:00 AM 0.00 0.0 M M M
3/9/2018 7:00 AM 0.00 0.0 M M M
3/10/2018 7:00 AM 0.00 0.0 M M M
3/11/2018 7:00 AM T T M M M Breezy in the morning, windy in the afternoon and that one squall where I thought I might have to go out and rescue the laundry (but did about an hour later because it got too windy).
3/12/2018 7:00 AM 0.00 0.0 M M M Light frost this morning and a beautiful sunrise.
3/13/2018 7:00 AM T 0.0 M M M Mostly virga yesterday afternoon, but there was one time when it wet quite a bit of the ground. Light frost this morning and a beautiful sunrise.
3/14/2018 7:00 AM 0.00 0.0 M M M
3/15/2018 7:00 AM 0.00 0.0 M M M
3/16/2018 7:00 AM 0.07 0.0 M 0.0 M Nice rain.
3/17/2018 7:00 AM 0.00 0.0 M M M
3/18/2018 7:00 AM 0.00 0.0 M M M
3/19/2018 7:00 AM 0.30 0.8 M T M First "sprinkle" was around 4 PM. Starting raining in earnest around 4:30-4:45. By 5:15, we were gawking at the big snowflake clusters that were coming down. It was starting to accumulate on the grass and cooler north facing sides of things by 5:30-5:45. It started letting up by 6:30. I went out and measured at 7:30 and at that point it was changing back to rain and some of the snow was already melting. I measured 0.8". The gauge was half liquid and half slush and had 0.24" liquid equivalent. By this morning, much of the concrete was dry and what was left of the snow on the grass was icy and crunchy. There gauge had water and a thin layer of ice. It was very breezy. The liquid this morning was 0.06.
3/20/2018 7:00 AM 0.00 0.0 M M M
3/21/2018 7:00 AM 0.00 0.0 M M M
3/22/2018 7:00 AM 0.00 0.0 M M M
3/23/2018 7:00 AM 0.00 0.0 M M M
3/24/2018 7:00 AM T M M M M I may have to put the center piece and funnel back on - when it is breezy, it's harder to capture 0.01.
3/25/2018 7:00 AM 0.00 0.0 M M M
3/26/2018 7:00 AM 0.02 0.0 M M M Fog and light mist this morning.
3/27/2018 7:00 AM 0.02 M M M M
3/28/2018 7:00 AM 0.00 0.0 M M M
3/29/2018 7:00 AM 0.33 1.5 M 0.5 M Started out as rain in the late morning, turned to snow in the early afternoon. Was a bit slushy and wet when I rode my bike home at 3 PM. Luckily I had layers and rain gear :)
3/30/2018 7:00 AM 0.01 T M M M
3/31/2018 7:00 AM 0.00 0.0 M M M
4/1/2018 7:00 AM 0.02 0.2 M M M Even though it was a possibility, I was a little surprised to see the snow. Happy Easter
4/2/2018 7:00 AM T M M M M
4/3/2018 7:00 AM 0.00 0.0 M M M
4/4/2018 7:00 AM 0.00 0.0 M M M
4/5/2018 7:00 AM 0.00 0.0 M M M
4/6/2018 7:00 AM 0.00 0.0 M M M
4/7/2018 7:00 AM 0.17 2.0 M 1.0 M Wet spring snow that was hard to measure because the ground is warm. Started out as big flakes at about 7:15 in the morning - right after yesterday’s measurement. The snow is an estimate based on what was remaining on things around the house on Friday afternoon.
4/8/2018 7:00 AM 0.00 0.0 M M M
4/9/2018 7:00 AM 0.02 M M M M
4/10/2018 7:00 AM T M M M M
4/11/2018 7:00 AM 0.00 0.0 M M M
4/12/2018 7:00 AM 0.00 0.0 M M M
4/13/2018 7:00 AM T M M M M
4/14/2018 7:00 AM 0.00 0.0 M M M
4/15/2018 7:00 AM 0.00 0.0 M M M
4/16/2018 7:00 AM 0.00 0.0 M M M
4/17/2018 7:00 AM 0.00 0.0 M M M
4/18/2018 7:00 AM 0.00 0.0 M M M
4/19/2018 7:00 AM 0.00 0.0 M M M
4/20/2018 7:00 AM 0.00 0.0 M M M
4/21/2018 7:20 AM 0.44 0.7 0.24 M M The gauge had slush in it: a combination of rain and snow and I could not tell the difference. My board had 0.7" snow and a core melted to 0.24". Between 6 and 7 this morning, it wasn't precipitating. At 7 I started seeing a few flakes, and by 7:20 when I got outside, it was a light-moderate snow rate.
4/22/2018 7:00 AM 0.07 T M M M Snow falling yesterday morning, but not accumulating on the warm surfaces. Frost and fog this morning.
4/23/2018 7:00 AM 0.00 0.0 M M M
4/24/2018 7:00 AM 0.04 M M M M
4/25/2018 7:00 AM 0.01 M M M M
4/26/2018 7:00 AM 0.00 0.0 M M M
4/27/2018 7:00 AM 0.00 0.0 M M M
4/28/2018 7:00 AM 0.00 0.0 M M M
4/29/2018 7:00 AM 0.00 0.0 M M M
4/30/2018 7:00 AM 0.00 0.0 M M M
5/1/2018 7:00 AM T M M M M
5/2/2018 7:00 AM 0.02 M M M M morning and afternoon rain (~0.01 each)
5/3/2018 7:15 AM 1.69 0.0 M M M Light to moderate rain early in the day - heavier after ~6PM
5/4/2018 7:00 AM 0.67 M M M M Nice rain these past 2 days :)
5/5/2018 7:00 AM T M M M M Early in the day, it was a perfect spring day! There was a T a couple times in the evening past 6PM.
5/6/2018 7:00 AM T 0.0 M M M
5/7/2018 7:00 AM 0.00 0.0 M M M
5/8/2018 7:00 AM 0.00 0.0 M M M
5/9/2018 7:00 AM 0.00 0.0 M M M Drops of water on the tips of grass - not sure if this is dew or not - but it sure is pretty :) Metal and other surfaces are dry.
5/10/2018 7:00 AM 0.00 0.0 M M M Drops of water on the tips of grass - not sure if this is dew or not - but it sure is pretty :) Metal and other surfaces are dry. Saw a giant silk moth this morning on the sidewalk.
5/11/2018 7:00 AM 0.00 0.0 M M M Dew drops on the tips of blades of grass. Some metal surfaces wet this morning (but not all surfaces).
5/12/2018 8:00 AM 0.24 0.0 M M M Nice sleep-in weather ;)
5/13/2018 7:50 AM 0.26 M M M M Drizzle this morning. Most of the rain late in the day yesterday and overnight.
5/14/2018 7:00 AM 0.10 0.0 M M M 0.03 earlier in the day and the rest late afternoon to evening. I can tell it's humid - the dish and hand cloths are not drying out in 10 hours...
5/15/2018 7:00 AM 0.01 0.0 M M M It looked threatening and rumbled throughout the day, but mostly missed my house. Heavy dew this morning.
5/16/2018 7:00 AM 0.00 0.0 M M M
5/17/2018 7:00 AM 0.00 0.0 M M M
5/18/2018 7:00 AM 0.00 0.0 M M M
5/19/2018 7:00 AM 0.14 M M M M
5/20/2018 7:00 AM 0.18 M M M M mostly steady light rain - dried out in the afternoon yesterday and then rained again later and overnight
5/21/2018 7:00 AM 0.03 M M M M Fog in the field to the west that dissipated as soon as the sun came up. Heavy dew.
5/22/2018 7:00 AM T M M M M light dew this morning - enough to get the feet wet on the grass, but not have a wet metal surface
5/23/2018 7:00 AM 1.04 0.0 M M M Sorry I forgot to write down storm details and my forgetting curve has set in. I do remember lots of thunder rumbling to the south and west around 4:50 ish that keep me from doing much needed weed control in the garden ;) We got 0.25” hail, ~25-50% coverage, little leaf damage. Biggest factors wind and heavy rain. Had to get the pump out to move the water away from the back door. Most of the rain fell within an hour. With 15+ years experience, this can happen a couple times a year (like 2009), and can happen once per summer, but tends to happen every few years. So is that typical or not? The drainage in the street near our house has greatly improved in the last 10 years, so didn’t notice any big problems with that.
5/24/2018 7:00 AM T M M M M
5/25/2018 7:00 AM 0.00 0.0 M M M
5/26/2018 7:00 AM 0.00 0.0 M M M Sun’s up and not a cloud in the sky - even though I’m a little early, the obs won’t change so I’m keeping the time as 7 AM. There is.a moderate dew this morning.
5/27/2018 7:00 AM 0.00 0.0 M M M
5/28/2018 7:00 AM T M M M M
5/29/2018 7:00 AM 0.11 0.0 M M M Rain in the late afternoon ~5PM. I did see a few rice and pea size hail although collectively probably less than 1%.
5/30/2018 7:00 AM T M M M M
5/31/2018 7:00 AM 0.07 M M M M Rain between ~5:15 and 5:45
6/1/2018 7:00 AM T M M M M
6/2/2018 7:00 AM 0.00 0.0 M M M
6/3/2018 7:00 AM 0.00 0.0 M M M
6/4/2018 7:00 AM 0.00 0.0 M M M
6/5/2018 7:00 AM 0.00 0.0 M M M
6/6/2018 7:00 AM 0.00 0.0 M M M
6/7/2018 7:00 AM T M M M M
6/8/2018 7:00 AM 0.00 0.0 M M M
6/9/2018 7:00 AM 0.00 0.0 M M M
6/10/2018 7:00 AM 0.00 0.0 M M M
6/11/2018 7:00 AM 0.00 0.0 M M M
6/12/2018 7:00 AM 0.00 0.0 M M M
6/13/2018 7:00 AM 0.00 0.0 M M M
6/14/2018 7:00 AM 0.00 0.0 M M M
6/15/2018 7:00 AM T M M M M
6/16/2018 7:00 AM T M M M M
6/17/2018 7:00 AM T M M M M
6/18/2018 7:00 AM 0.27 0.0 M M M Drizzle/mist this morning.
6/19/2018 7:00 AM 0.03 M M M M Rain in the early part of the day as drizzle. A trace from the late afternoon/evening storms
6/20/2018 7:00 AM 0.56 0.0 M M M I was on the south side of town and did not experience it. When I got home at 5 PM, there was quite a bit of hail damage (leaves and needles off trees (spruce made it smell like Christmas), pears, apples, and grapes knocked off trees and vines, damage to house siding and even clothespins and and 1" hail still covering the grass.) It hit some things, but not others. The gauge had 0.31 liquid and no hail in the top, so I figured it bounced out. I did a "core" in the middle of the yard - Note it didn't even cover the bottom of the gauge, but there were a variety of sizes from pea to 1". That melted to 0.21. This morning, there was an additional 0.04" in the gauge.
6/21/2018 7:00 AM 0.00 0.0 M M M
6/22/2018 7:00 AM 0.03 M M M M
6/23/2018 7:00 AM 0.00 0.0 M M M
6/24/2018 7:00 AM 0.08 M M M M
6/25/2018 7:00 AM 0.14 M M M M
6/26/2018 7:00 AM 0.00 0.0 M M M
6/27/2018 7:00 AM 0.00 0.0 M M M
6/28/2018 7:00 AM T M M M M
6/29/2018 7:00 AM T M M M M
6/30/2018 7:00 AM 0.00 0.0 M M M
7/1/2018 7:00 AM 0.53 M M M M I was away and my husband was home. He said there was pea size hail.
7/2/2018 7:00 AM 0.00 0.0 M M M
7/3/2018 7:00 AM 0.00 0.0 M M M
7/4/2018 7:00 AM T M M M M
7/5/2018 7:00 AM 0.08 0.0 M M M Lots of thunder and lightning
7/6/2018 7:00 AM 0.00 0.0 M M M
7/7/2018 7:00 AM 0.00 0.0 M M M
7/8/2018 7:00 AM 0.00 0.0 M M M
7/9/2018 7:00 AM 0.02 M M M M Hot... The rain evaporated quickly. Lots of lightning and thunder to the west.
7/10/2018 7:00 AM 0.00 0.0 M M M
7/11/2018 7:00 AM 0.00 0.0 M M M
7/12/2018 7:00 AM 0.00 0.0 M M M
7/13/2018 7:00 AM 0.92 M M M M I was down in Loveland when it started. Best estimate for rain between 1 and 5 PM.
7/14/2018 7:00 AM 0.00 0.0 M M M
7/15/2018 7:00 AM 0.00 0.0 M M M
7/16/2018 7:00 AM 0.29 M M M M Rain between ~12:30 and 5 PM with most of it falling between 3 and 4. Very humid this morning and nice and cool :)
7/17/2018 7:00 AM T M M M M
7/18/2018 7:00 AM 0.02 M M M M
7/19/2018 7:00 AM 0.00 0.0 M M M
7/20/2018 7:00 AM 0.00 0.0 M M M
7/21/2018 7:00 AM 0.00 0.0 M M M
7/22/2018 7:00 AM T M M M M
7/23/2018 7:00 AM 0.04 M M M M
7/24/2018 7:00 AM 0.40 M M M M 0.28” rain by 5 PM, another storm between ~7:30 and 8:15 with an additional 0.12”. Welcome cooler temperatures :)
7/25/2018 7:00 AM 0.03 M M M M Afternoon shower
7/26/2018 7:00 AM 0.24 M M M M 0.12 from the afternoon and evening, 0.12 overnight
7/27/2018 7:00 AM 0.00 0.0 M M M
7/28/2018 7:00 AM T M M M M
7/29/2018 7:00 AM 0.07 M M M M
7/30/2018 7:00 AM 0.17 M M M M
7/31/2018 7:00 AM 0.00 0.0 M M M
8/1/2018 7:00 AM 0.00 0.0 M M M
8/2/2018 7:00 AM 0.00 0.0 M M M
8/3/2018 7:00 AM 0.00 0.0 M M M
8/4/2018 7:00 AM 0.03 M M M M
8/5/2018 7:00 AM 0.05 M M M M
8/6/2018 7:00 AM 0.08 M M M M
8/7/2018 7:00 AM 0.00 0.0 M M M
8/8/2018 7:00 AM 0.00 0.0 M M M
8/9/2018 7:00 AM 0.04 M M M M
8/10/2018 7:00 AM 0.00 0.0 M M M
8/11/2018 7:00 AM 0.00 0.0 M M M
8/12/2018 7:00 AM 0.00 0.0 M M M
8/13/2018 7:00 AM 0.00 0.0 M M M
8/14/2018 7:00 AM 0.00 0.0 M M M
8/15/2018 7:00 AM 0.01 M M M M
8/16/2018 7:00 AM 0.00 0.0 M M M
8/17/2018 7:00 AM 0.00 0.0 M M M
8/18/2018 7:00 AM 0.00 0.0 M M M
8/19/2018 7:00 AM 0.09 M M M M
8/20/2018 7:00 AM 0.00 0.0 M M M
8/21/2018 7:00 AM 0.00 0.0 M M M
8/22/2018 7:00 AM 0.03 M M M M Measurable rain in the afternoon ~2 PM.
8/23/2018 7:00 AM T M M M M
8/24/2018 7:00 AM 0.00 0.0 M M M
8/25/2018 7:00 AM 0.00 0.0 M M M
8/26/2018 7:00 AM 0.06 M M M M
8/27/2018 7:00 AM 0.00 0.0 M M M
8/28/2018 7:00 AM 0.00 0.0 M M M
8/29/2018 7:00 AM 0.00 0.0 M M M
8/30/2018 7:00 AM T M M M M
8/31/2018 7:00 AM T M M M M
9/1/2018 7:00 AM T M M M M
9/2/2018 7:00 AM 0.00 0.0 M M M
9/3/2018 7:00 AM 0.00 0.0 M M M
9/4/2018 7:00 AM 0.00 0.0 M M M
9/5/2018 7:00 AM 0.01 M M M M
9/6/2018 7:00 AM 0.00 0.0 M M M
9/7/2018 7:00 AM 0.01 M M M M Dew on surfaces this morning.
9/8/2018 7:00 AM 0.00 0.0 M M M
9/9/2018 7:00 AM 0.00 0.0 M M M
9/10/2018 7:00 AM 0.01 M M M M
9/11/2018 7:00 AM 0.00 0.0 M M M
9/12/2018 7:00 AM T M M M M
9/13/2018 7:00 AM 0.00 0.0 M M M
9/14/2018 7:00 AM 0.00 0.0 M M M
9/15/2018 7:00 AM 0.00 0.0 M M M
9/16/2018 7:00 AM 0.00 0.0 M M M
9/17/2018 7:00 AM 0.00 0.0 M M M
9/18/2018 7:00 AM 0.00 0.0 M M M
9/19/2018 7:00 AM 0.00 0.0 M M M
9/20/2018 7:00 AM 0.54 M M M M Thunder/Lightning and Rain starting ~5 PM - we had pea size hail too. Already seeing some "greening" with this welcome moisture.
9/21/2018 7:00 AM 0.00 0.0 M M M
9/22/2018 7:00 AM 0.00 0.0 M M M
9/23/2018 7:00 AM 0.00 0.0 M M M
9/24/2018 7:00 AM 0.00 0.0 M M M
9/25/2018 7:00 AM 0.00 0.0 M M M
9/26/2018 7:00 AM 0.00 0.0 M M M
9/27/2018 7:00 AM 0.00 0.0 M M M
9/28/2018 7:00 AM T M M M M
9/29/2018 7:00 AM 0.06 M M M M Very light drizzle in the morning, light rain in the afternoon starting after ~2PM. It made for a wet ride home on the bicycle - luckily I have rain gear.
9/30/2018 8:00 AM 0.01 M M M M



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
6/19/2018 4:00 PM I was not home at the time but was home by 5 PM. I didn't have a hail pad out, but I did notice that the area of the raised bed that I smoothed out on Sunday (after pulling weeds and preparing for a bean planting) had some dents in it. I'll look today to see if there is any information I can glean from it. The rain in the gauge was 0.31. There were no hail stones in it because they likely bounced out. Hail in the yard had a white core and clear outer. I did a "core" of the hail in the middle of the yard (note because the hail was larger, it did not cover the bottom). It melted to 0.21" liquid. Most hail stones were gone by 8 PM. In a few spots where there were more (north side of house off roof) there were still a few this morning). Many pears and apples were damaged or knocked off the trees in addition to the leaves. Young grape stalks were also knocked off. Maybe this is a natural pruning? Time will tell how extensive the damage was. The needles that were knocked off the spruce gave off a pleasant aroma. I could still smell bruised onion this morning. 1" Quarter Size 3/4" Penny Size 1/4" Pea Size Hard|Clear Ice|White Ice minor leaf damage.shredded leaves.damaged shingles False
9/19/2018 5:22 PM Water pooling in areas 1/4" Pea Size 1/4" Pea Size Rice Mixed 5 minor leaf damage Continuous True After rain Same time as smaller hail 30-40