Station Overview Station Location
Station Number CO-BO-146 Latitude 40.226333
Station Name Lyons 0.3 NNE Longitude -105.266667
County Boulder Elevation (ft) 5399



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 1.07 1.55 31 0.78 29 0.77 2 1 6 0 0.4 2 0
Nov 17 0.86 0.88 30 0.88 30 0.00 0 0 6 2 4.6 2 3
Dec 17 0.50 0.30 31 0.30 31 0.00 0 0 4 6 4.6 5 8
Jan 18 0.48 0.43 31 0.43 31 0.00 0 0 5 2 5.8 3 7
Feb 18 0.56 0.85 28 0.85 28 0.00 0 0 12 0 19.0 9 15
March 18 1.57 1.06 31 1.06 31 0.00 0 0 5 2 1.1 1 1
April 18 2.00 0.93 30 0.93 30 0.00 0 0 8 1 3.0 3 2
May 18 2.48 3.69 31 3.69 31 0.00 0 0 13 0 0.0 0 0
June 18 2.26 1.52 30 1.52 30 0.00 0 0 5 3 0.0 0 0
July 18 1.72 2.85 31 2.85 31 0.00 0 0 9 4 0.0 0 0
Aug 18 1.41 1.10 31 1.10 31 0.00 0 0 7 6 0.0 0 0
Sept 18 1.57 1.03 30 1.03 30 0.00 0 0 4 2 0.0 0 0
Water Year Totals: 16.48" 16.19" 365 days 15.42" 363 0.77" 2 days 1 84 days 28 days 38.5" 25 days 36 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 0.01
10/2/2017 0.40
10/3/2017 0.25
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 0.00
10/8/2017 0.00
10/9/2017 **
10/10/2017 0.77
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 0.08
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 0.01
10/31/2017 0.03
11/1/2017 T
11/2/2017 0.00
11/3/2017 0.00
11/4/2017 0.00
11/5/2017 0.18
11/6/2017 0.18
11/7/2017 0.45
11/8/2017 0.05
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 0.01
11/19/2017 0.00
11/20/2017 0.00
11/21/2017 0.00
11/22/2017 0.00
11/23/2017 0.00
11/24/2017 0.00
11/25/2017 T
11/26/2017 0.00
11/27/2017 0.00
11/28/2017 0.01
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 0.00
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 0.10
12/15/2017 0.00
12/16/2017 0.00
12/17/2017 T
12/18/2017 T
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.07
12/22/2017 0.04
12/23/2017 0.00
12/24/2017 0.09
12/25/2017 0.00
12/26/2017 T
12/27/2017 T
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 T
12/31/2017 T
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 0.00
1/8/2018 0.00
1/9/2018 0.00
1/10/2018 0.00
1/11/2018 0.02
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 0.24
1/22/2018 0.07
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 0.04
2/2/2018 0.01
2/3/2018 0.00
2/4/2018 0.01
2/5/2018 0.01
2/6/2018 0.01
2/7/2018 0.00
2/8/2018 0.00
2/9/2018 0.00
2/10/2018 0.07
2/11/2018 0.11
2/12/2018 0.00
2/13/2018 0.02
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.04
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.03
2/20/2018 0.29
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.00
2/24/2018 0.21
2/25/2018 0.00
2/26/2018 0.00
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
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 0.00
3/12/2018 0.00
3/13/2018 0.00
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 0.38
3/20/2018 T
3/21/2018 0.00
3/22/2018 0.00
3/23/2018 0.00
3/24/2018 0.00
3/25/2018 0.00
3/26/2018 0.01
3/27/2018 0.40
3/28/2018 0.00
3/29/2018 0.20
3/30/2018 T
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.06
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 0.22
4/8/2018 0.00
4/9/2018 0.01
4/10/2018 0.03
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.00
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 0.17
4/22/2018 0.05
4/23/2018 0.00
4/24/2018 0.12
4/25/2018 0.27
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 0.03
5/2/2018 0.05
5/3/2018 1.18
5/4/2018 0.74
5/5/2018 0.01
5/6/2018 0.00
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 0.15
5/13/2018 0.26
5/14/2018 0.59
5/15/2018 0.02
5/16/2018 0.00
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.38
5/20/2018 0.19
5/21/2018 0.02
5/22/2018 0.00
5/23/2018 0.00
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 0.07
5/30/2018 0.00
5/31/2018 0.00
6/1/2018 0.00
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 0.00
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 T
6/15/2018 0.00
6/16/2018 0.00
6/17/2018 T
6/18/2018 0.77
6/19/2018 0.38
6/20/2018 0.17
6/21/2018 0.00
6/22/2018 0.02
6/23/2018 0.00
6/24/2018 T
6/25/2018 0.18
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 0.00
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.04
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 T
7/5/2018 0.00
7/6/2018 0.00
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 0.00
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 0.00
7/15/2018 0.00
7/16/2018 0.48
7/17/2018 0.00
7/18/2018 T
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 T
7/23/2018 0.20
7/24/2018 0.82
7/25/2018 T
7/26/2018 1.09
7/27/2018 0.05
7/28/2018 0.06
7/29/2018 0.10
7/30/2018 0.01
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 T
8/4/2018 0.08
8/5/2018 T
8/6/2018 T
8/7/2018 T
8/8/2018 0.00
8/9/2018 T
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 0.31
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 0.00
8/19/2018 0.61
8/20/2018 0.01
8/21/2018 0.02
8/22/2018 0.05
8/23/2018 0.00
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 T
8/27/2018 0.00
8/28/2018 0.02
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 0.10
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.90
9/6/2018 T
9/7/2018 0.00
9/8/2018 0.00
9/9/2018 T
9/10/2018 0.01
9/11/2018 0.00
9/12/2018 0.00
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 0.02
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 0.00
9/29/2018 0.00
9/30/2018 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 7:00 AM 0.01 M M M M
10/2/2017 7:00 AM 0.40 M M M M Rain largely overnight. Moderately heavy at 5am. Noted 0.29" at 6am. 0 40" at 7am. Low temp 38F
10/3/2017 7:00 AM 0.25 M M M M Light freeze, frost. Low 32F
10/4/2017 7:00 AM 0.00 0.0 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
10/11/2017 7:00 AM 0.00 0.0 M M M
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 0.08 0.1 M T 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 0.0 M M M Some rain and freezing rain before dawn.
10/31/2017 7:00 AM 0.03 0.3 M T M Trace during the day. A bit of snow overnight.
11/1/2017 7:00 AM T T M 0.0 M A wee bit of snow or whatnot 7-7:30am. Overnight winds buoyed temps to 58F (noted at 6am).
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 0.18 M M M M A bit of rain overnight and continuing. Low 36F.
11/6/2017 7:00 AM 0.18 M M M M Off and on rainy, drizzly, and continuing. Overnight low 33F.
11/7/2017 7:00 AM 0.45 4.1 M 4.0 M Snow overnight. (It may have started as rain -- 0.07"). Snow continuing at observation time. Low 25F.
11/8/2017 7:00 AM 0.05 0.5 M 3.5 M Light snow off and on throughout day and some overnight. Low 21F.
11/9/2017 7:00 AM 0.00 0.0 M 2.0 M
11/10/2017 7:00 AM 0.00 0.0 M T M
11/11/2017 7:00 AM 0.00 0.0 M 0.0 M
11/12/2017 7:00 AM 0.00 0.0 M 0.0 M
11/13/2017 7:00 AM 0.00 0.0 M 0.0 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 0.01 M M M M A bit of rain late afternoon.
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 0.00 0.0 M M M
11/22/2017 7:00 AM 0.00 0.0 M M M
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 T 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 0.01 M M M M Overnight colder and a little rain.
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 0.00 0.0 M M M
12/5/2017 7:00 AM 0.00 0.0 M M M Low temp 13F. A bit of frost.
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 Overnight low 9F.
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 0.10 1.4 M 1.5 M Overnight some snow. Low 21F
12/15/2017 7:00 AM 0.00 0.0 M T M
12/16/2017 7:00 AM 0.00 0.0 M M M
12/17/2017 7:00 AM T M M M M A small amount of mist or rain in the early morning hours. Low 29F
12/18/2017 7:00 AM T M M M M Very small amount of mist or precip in the a.m. 12/17. This morning, heavy frost and low 20s.
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 0.07 0.7 M 0.5 M A light, granular snow beginning approx 3:30am. 24F. Turning to snow in the next hour. Temperature dropped to 20F
12/22/2017 7:00 AM 0.04 0.8 M 1.0 M Snow ending approximately midday. Overnight low 6F.
12/23/2017 7:00 AM 0.00 0.0 M M M
12/24/2017 7:00 AM 0.09 1.6 M 2.0 M Snow starting at nightfall and overnight. Low -2F
12/25/2017 7:00 AM 0.00 0.0 M 2.0 M
12/26/2017 7:00 AM T M M 2.5 M Some snowflakes near observation time. 7F.
12/27/2017 7:00 AM T 0.1 M 2.5 M Some light snow during the morning/day. Overnight low 2F.
12/28/2017 7:00 AM 0.00 0.0 M 1.0 M Very strong winds, highs in the upper 40s to ~50F.
12/29/2017 7:00 AM 0.00 0.0 M T M Very strong winds overnight buoyed temps to 55F.
12/30/2017 7:00 AM T T M T M Overnight some trace snow. 10F
12/31/2017 7:00 AM T T M M M
1/1/2018 7:00 AM T T M T M
1/2/2018 7:00 AM 0.00 0.0 M 0.0 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 0.00 0.0 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 0.02 0.0 M M M
1/12/2018 7:00 AM 0.00 0.0 M M M
1/13/2018 7:00 AM T 0.0 M M M
1/14/2018 7:00 AM 0.00 0.0 M M M
1/15/2018 7:00 AM 0.02 T M M M Snow pellets and some snow in the early morning hours
1/16/2018 7:00 AM 0.08 2.0 M 2.0 M
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 7:00 AM 0.24 2.4 M 2.5 M A small amount of rainfall evident late evening before snow began. Overnight low 25F. Snow continuing at observation time.
1/22/2018 7:00 AM 0.07 1.4 M 3.0 M Light winds throughout the morning may have affected gauge catch and ability to measure snow accumulation. Snowfall ended around 3-4pm.
1/23/2018 7:00 AM 0.00 0.0 M 1.5 M
1/24/2018 7:00 AM 0.00 0.0 M 1.5 M
1/25/2018 7:00 AM 0.00 0.0 M 0.5 M
1/26/2018 7:00 AM 0.00 0.0 M 0.5 M
1/27/2018 7:00 AM 0.00 0.0 M T M
1/28/2018 7:00 AM 0.00 0.0 M T M
1/29/2018 7:00 AM 0.00 0.0 M T M
1/30/2018 7:00 AM 0.00 0.0 M T M
1/31/2018 7:00 AM 0.00 0.0 M T M
2/1/2018 7:00 AM 0.04 0.7 M 0.5 M Snow overnight and continuing at obs time. Some of the catch is granular. Low this morning 24F.
2/2/2018 7:00 AM 0.01 T M T M
2/3/2018 7:00 AM 0.00 0.0 M 0.0 M
2/4/2018 7:00 AM 0.01 M M T M Freezing rain at dawn. A tiny bit of granular snow atop the ice. Low overnight 17F.
2/5/2018 7:00 AM 0.01 0.3 M 0.0 M Light snow ending midday. After a bout of strong winds shortly before 7 a.m., a trace of rainfall, continuing. Overnight temps varied between 19F and 47F.
2/6/2018 7:00 AM 0.01 T M 0.0 M A bit of measurable rain 7am to 7:30am. In the evening some very light snow which was not evident by morning.
2/7/2018 7:00 AM 0.00 0.0 M 0.0 M
2/8/2018 7:00 AM 0.00 0.0 M 0.0 M
2/9/2018 7:00 AM 0.00 0.0 M 0.0 M Fog this morning, lightly frozen on the windshield. No evidence of precip.
2/10/2018 7:00 AM 0.07 1.6 M 1.5 M Snow at nightfall and continuing at observation time. Overnight low 10F.
2/11/2018 7:00 AM 0.11 2.4 M 3.5 M Snow was mostly done by early afternoon. Overnight 5F.
2/12/2018 7:00 AM 0.00 0.0 M 1.0 M
2/13/2018 7:00 AM 0.02 0.2 M 1.0 M A bit of during the night.
2/14/2018 7:00 AM 0.00 0.0 M T M
2/15/2018 7:00 AM 0.00 0.0 M T M
2/16/2018 7:00 AM 0.04 0.5 M 0.5 M Snow overnight.
2/17/2018 7:00 AM 0.00 0.0 M T M
2/18/2018 7:00 AM 0.00 0.0 M M M Warm and breezy. High in the mid 50s.
2/19/2018 7:00 AM 0.03 1.3 M 0.5 M Strong winds intermittently, high of 67F. Very sudden super strong winds around 7:20pm with a 10 degree temperature drop soonafter to 33F. Light snow starting around 8 or 9pm. The catch included the very airy snow interspersed with very tiny snow "balls". Overnight low 10F. Snow continuing.
2/20/2018 7:00 AM 0.29 4.9 M 4.5 M Snow throughout the day, heavier 3pm onwards and ending late evening. Overnight low -9F.
2/21/2018 7:00 AM 0.00 0.0 M 4.0 M
2/22/2018 7:00 AM 0.00 0.0 M 3.0 M
2/23/2018 7:00 AM 0.00 0.0 M 3.0 M
2/24/2018 7:00 AM 0.21 7.1 M 6.0 M Snow starting presumably around 4pm. After 5 or 5:30pm snowfall became significant, accumulating 6.8" by 8pm. Snow mostly done by 9pm, with 0.3" more accumulation noted overnight. Snow very light and fluffy, compressing this morning. Overnight 10F.
2/25/2018 7:00 AM 0.00 0.0 M 3.5 M
2/26/2018 7:00 AM 0.00 0.0 M 2.0 M
2/27/2018 7:00 AM 0.00 0.0 M 0.5 M
2/28/2018 7:00 AM 0.00 0.0 M T M
3/1/2018 7:00 AM 0.00 0.0 M T M
3/2/2018 7:00 AM 0.00 0.0 M T M
3/3/2018 7:00 AM 0.00 0.0 M 0.0 M
3/4/2018 7:00 AM 0.00 0.0 M 0.0 M
3/5/2018 7:00 AM 0.00 0.0 M 0.0 M Very strong winds in the evening and seemed to be overnight. Low 27F.
3/6/2018 7:00 AM 0.00 0.0 M 0.0 M
3/7/2018 7:00 AM 0.00 0.0 M 0.0 M
3/8/2018 7:00 AM 0.00 0.0 M 0.0 M
3/9/2018 7:00 AM 0.00 0.0 M 0.0 M
3/10/2018 7:00 AM 0.00 0.0 M 0.0 M
3/11/2018 7:00 AM 0.00 0.0 M 0.0 M
3/12/2018 7:00 AM 0.00 0.0 M 0.0 M
3/13/2018 7:00 AM 0.00 0.0 M 0.0 M
3/14/2018 7:00 AM 0.00 0.0 M 0.0 M
3/15/2018 7:00 AM 0.00 0.0 M 0.0 M
3/16/2018 7:00 AM 0.07 M M M M A little bit of rain late afternoon and overnight.
3/17/2018 7:00 AM 0.00 0.0 M 0.0 M
3/18/2018 7:00 AM 0.00 0.0 M 0.0 M
3/19/2018 7:00 AM 0.38 T M T M Rain snow mix starting at 3pm, but very intermittent. Heavier at 4pm onwards including in the mix some ice and snow pellet globs. 0.33" of mostly water at 7pm. I don't believe there was much if any precip after midnight.
3/20/2018 7:00 AM T T M 0.0 M A handful of snowflakes/pellets around 5:30pm.
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 0.00 0.0 M M M
3/25/2018 7:00 AM 0.00 0.0 M M M
3/26/2018 7:00 AM 0.01 M M 0.0 M Some very light rain (or drizzle) after dark and overnight.
3/27/2018 7:00 AM 0.40 1.1 M 0.5 M 0.21" fell as rain in the evening, changing to snow between 8-9pm. 1.1" of snow measured in the a.m. with 0.19" water content.
3/28/2018 7:00 AM 0.00 0.0 M 0.0 M
3/29/2018 7:00 AM 0.20 T M T M Rain starting early afternoon and periods of heavy snowflakes. Temps seemed to stay in mid 30s resulting in no noticeable accumulation. 0.16" water by 6pm. 0.20" total. Nice heavy frosty ice on things in the morning.
3/30/2018 7:00 AM T T M 0.0 M Intermittent periods of light rain/snow mix.
3/31/2018 7:00 AM 0.00 0.0 M 0.0 M
4/1/2018 7:00 AM 0.06 0.9 M 0.5 M Light snow 5 to 7am.
4/2/2018 7:00 AM T T M 0.0 M Light snow ending by 8am. Overcast, sun coming out about 1pm and warming in the upper 40s.
4/3/2018 7:00 AM 0.00 0.0 M 0.0 M
4/4/2018 7:00 AM 0.00 0.0 M 0.0 M
4/5/2018 7:00 AM 0.00 0.0 M 0.0 M
4/6/2018 7:00 AM 0.00 0.0 M 0.0 M
4/7/2018 7:00 AM 0.22 1.9 M 0.5 M
4/8/2018 7:00 AM 0.00 0.0 M 0.0 M
4/9/2018 7:00 AM 0.01 T M 0.0 M Rain changing to snow flurries 6-7am. Temperature dropped from 38F to 34F rather quickly.
4/10/2018 7:00 AM 0.03 T M 0.0 M Rain snow mix ending in the morning.
4/11/2018 7:00 AM 0.00 0.0 M 0.0 M
4/12/2018 7:00 AM 0.00 0.0 M 0.0 M
4/13/2018 7:00 AM 0.00 0.0 M 0.0 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 7:00 AM 0.17 M M M M Some light rain during the afternoon and evening. At sometimes in the evening it appeared to be very small and frozen. Low this morning 33 F. Overcast and dry pavement.
4/22/2018 7:00 AM 0.05 T M 0.0 M Throughout the morning light snow.
4/23/2018 7:00 AM 0.00 0.0 M M M
4/24/2018 7:00 AM 0.12 0.2 M T M Light rain. It had turned to rain snow this morning before obs time.
4/25/2018 7:00 AM 0.27 T M 0.0 M Rain snow mix throughout the day, ending before sunset. High in the 30s.
4/26/2018 7:00 AM 0.00 0.0 M 0.0 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 0.03 M M M M
5/2/2018 7:00 AM 0.05 M M M M
5/3/2018 7:00 AM 1.18 M M M M
5/4/2018 7:00 AM 0.74 M M M M
5/5/2018 7:00 AM 0.01 M M M M
5/6/2018 7:00 AM 0.00 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
5/10/2018 7:00 AM 0.00 0.0 M M M
5/11/2018 7:00 AM 0.00 0.0 M M M
5/12/2018 7:00 AM 0.15 M M M M A light rain overnight and continuing. 50F.
5/13/2018 7:00 AM 0.26 M M M M Overcast wtith rain heavier in late afternoon and evening.
5/14/2018 7:00 AM 0.59 M M M M Off and on light rain becoming more dedicated in late afternoon and evening. Heavy, 8 min downpour (0.21") with small, pea sized hail for 4 min 7:20p to 7:24. Hail report submitted.
5/15/2018 7:00 AM 0.02 M M M M Light rain ending before noon. Overnight 40F, heavy dew.
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 0.38 M M M M Afternoon rainfall. 0.37" measured at 6:30pm. Overcast this morning, 0.01" additional.
5/20/2018 7:00 AM 0.19 M M M M
5/21/2018 7:00 AM 0.02 M M M M
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:00 AM 0.00 0.0 M M M
5/24/2018 7:00 AM 0.00 0.0 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
5/27/2018 7:00 AM 0.00 0.0 M M M
5/28/2018 7:00 AM 0.00 0.0 M M M
5/29/2018 7:00 AM 0.07 M M M M Brief, strong afternoon storm with a bit of pea sized hail for a few minutes. Hail: 4:05 to 4:09pm, pea sized, hard, white, after rain began, no damage. Hail report was submitted.
5/30/2018 7:00 AM 0.00 0.0 M M M
5/31/2018 7:00 AM 0.00 0.0 M M M
6/1/2018 7:00 AM 0.00 0.0 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 0.00 0.0 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 T M M M M Some light, brief rain 7pm to 7:30pm. Overnight temperature dipped to about 55F, then between 6:30am and 7am light winds began and buoyed temps to near 80F.
6/15/2018 7:00 AM 0.00 0.0 M M M
6/16/2018 7:00 AM 0.00 0.0 M M M
6/17/2018 7:00 AM T M M M M
6/18/2018 7:00 AM 0.77 M M M M Heavy showers around noon produced approx 0.40" rain. 0.45" accum at nightfall with approx 0.30" overnight. A light, fine rain continuing. 54F.
6/19/2018 7:00 AM 0.38 M M M M Heavier rain around 4:30pm accounting for an accumulation of maybe up to 0.30". Some hail (maybe up to 1/2" some of which looked like "flat ice") was reported by my neighbors in this timeframe and a small amount of shredding of flowers was evident in my yard. Not a lot of dents on my hailpad but a few sharp ones.
6/20/2018 7:00 AM 0.17 M M M M Rain midday.
6/21/2018 7:00 AM 0.00 0.0 M M M
6/22/2018 7:00 AM 0.02 M M M M
6/23/2018 7:00 AM 0.00 0.0 M M M
6/24/2018 7:00 AM T 0.0 M M M Trace overnight.
6/25/2018 7:00 AM 0.18 M M M M Heavy rain 12:08 - 12:14pm accumulating 0.13". Heavy hail 12:08 - 12:12p, pea to 1/2" sized. Hail report submitted. Cool and mostly cloudy throughout the day with intermittent showers. Overnight low 47F.
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 0.00 0.0 M M M High of 95F at my house.
6/29/2018 7:00 AM 0.00 0.0 M M M
6/30/2018 7:00 AM 0.00 0.0 M M M
7/1/2018 7:00 AM 0.04 M M M M Afternoon shower. High 70F. Low 53F.
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 0.00 0.0 M M M
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 0.00 0.0 M M M
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 0.00 0.0 M M M
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 0.48 0.0 M M M 0.20" by noon. 0.28" more in the evening before sundown.
7/17/2018 7:00 AM 0.00 0.0 M M M
7/18/2018 7:00 AM T M M M M
7/19/2018 7:00 AM 0.00 0.0 M M M High of 90F.
7/20/2018 7:00 AM 0.00 0.0 M M M High 93F.
7/21/2018 7:00 AM 0.00 0.0 M M M
7/22/2018 7:00 AM T M M M M A bit of rain mid-afternoon.
7/23/2018 7:00 AM 0.20 M M M M Afternoon showers.
7/24/2018 7:00 AM 0.82 M M M M Torrential rain between 5:25 and 5:35pm followed by heavy rain until 5:50pm. I am guessing well over half an inchec, maybe 7/10ths fell in that time period.
7/25/2018 7:00 AM T 0.0 M M M
7/26/2018 7:00 AM 1.09 M M M M Some showers throughout the day particularly around 4:30-4:50pm. I noted a total of 0.21" by 5:30pm. Very heavy, sudden downpour arriving in an audible "wave" at 6pm. producing 0.25" in 10 minutes. At 7pm total was 0.59". A heavy storm at 1:40am produced perhaps 1/3" in 10 minutes, bringing the total to 1.00" by 1:50am. Daily Total 1.09".
7/27/2018 7:00 AM 0.05 M M M M
7/28/2018 7:00 AM 0.06 M M M M
7/29/2018 7:00 AM 0.10 M M M M
7/30/2018 7:00 AM 0.01 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 T M M M M
8/4/2018 7:00 AM 0.08 M M M M Afternoon shower.
8/5/2018 7:00 AM T 0.0 M M M
8/6/2018 7:00 AM T M M M M
8/7/2018 7:00 AM T M M M M Some light, misty rain between 9am and 10.
8/8/2018 7:00 AM 0.00 0.0 M M M
8/9/2018 7:00 AM T M M M M Overcast, with some mist in the morning.
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 0.31 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 0.61 M M M M Heavy, sudden storm dunping probably 1/2 in 15 minutes. Beginning 9:35pm with 0.58" accumulating in 20 minutes, ending by 10pm.
8/20/2018 7:00 AM 0.01 M M M M
8/21/2018 7:00 AM 0.02 M M M M Light showers 5-7am.
8/22/2018 7:00 AM 0.05 M M M M
8/23/2018 7:00 AM 0.00 0.0 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 T M M M M Afternoon a few sprinkles.
8/27/2018 7:00 AM 0.00 0.0 M M M
8/28/2018 7:00 AM 0.02 M M M M A shower around 9:45pm.
8/29/2018 7:00 AM 0.00 0.0 M M M
8/30/2018 7:00 AM 0.00 0.0 M M M
8/31/2018 7:00 AM 0.00 0.0 M M M
9/1/2018 7:00 AM 0.10 M M M M Afternoon showers ~3-5pm.
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 0.90 M M M M Heavy rain storm beginning ~11:43pm. 0.80" fell in the next 18 minutes. Lots of thunder and lightning. During the heavy rain some small,intermittent hail was falling (not a lot)starting at 11:50pm and continuing for 8 minutes. Rain easing off but continuing for the next hour, accumulating 0.09" more. Overcast and a few light raindrops falling at sunrise. Low 54F. Significant weather report and hail report submitted.
9/6/2018 7:00 AM T M M M M
9/7/2018 7:00 AM 0.00 0.0 M M M
9/8/2018 7:00 AM 0.00 0.0 M M M
9/9/2018 7:00 AM T M M M M Strong winds and some raindrops about 930 or 10pm
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 0.00 0.0 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 0.02 M M M M On and off trace showers after nightfall. Overcast this morning.
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 0.00 0.0 M M M
9/29/2018 7:00 AM 0.00 0.0 M M M
9/30/2018 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/9/2017 10/10/2017 7:00 AM 2 0.77 T M Approx 1.5" snow fell largely 10/09/17 morning.



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
5/13/2018 7:20 PM In under 10 minutes this heavy downpour dropped 0.21" of rain between apptox 7:20 and 7:28pm. 3/8" 1/4" Pea Size Rice Hard|White Ice 4 1min minor leaf damage Continuous True After rain
5/28/2018 4:06 PM 3/8" 1/4" Pea Size 1/4" Pea Size Hard|White Ice 4 no damage Intermittent True After rain After smaller hail
6/24/2018 12:08 PM Hail 12:08 - 12:12pm. Accompanied by heavy rain which ended 12:14pm. 0.13" precip measured. 1/2" Grape 3/8" 1/4" Pea Size Hard|White Ice minor leaf damage Continuous True Same time as rain Same time as smaller hail 10-20
9/4/2018 11:50 PM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 8 2min no damage Intermittent True After rain vertical