Station Overview Station Location
Station Number CO-BO-143 Latitude 40.2001
Station Name Longmont 2.1 N Longitude -105.1087
County Boulder Elevation (ft) 5049



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 0.99 1.52 31 1.52 31 0.00 0 0 7 0 3.0 4 1
Nov 17 0.78 0.46 30 0.46 30 0.00 0 0 6 0 3.4 2 2
Dec 17 0.54 0.32 31 0.32 31 0.00 0 0 5 5 4.9 5 10
Jan 18 0.36 0.40 31 0.40 31 0.00 0 0 4 3 4.7 3 9
Feb 18 0.45 0.56 28 0.56 28 0.00 0 0 9 2 10.6 9 15
March 18 1.48 1.13 31 1.13 31 0.00 0 0 6 2 0.9 3 0
April 18 1.84 0.92 30 0.92 30 0.00 0 0 7 2 2.5 5 2
May 18 2.32 4.05 31 4.05 31 0.00 0 0 11 1 0.0 0 0
June 18 1.76 0.65 30 0.65 30 0.00 0 0 7 2 0.0 0 0
July 18 1.31 1.75 31 1.75 31 0.00 0 0 8 1 0.0 0 0
Aug 18 1.37 1.36 31 1.36 31 0.00 0 0 5 2 0.0 0 0
Sept 18 1.31 0.25 30 0.25 30 0.00 0 0 4 2 0.0 0 0
Water Year Totals: 14.51" 13.37" 365 days 13.37" 365 0.00" 0 days 0 79 days 22 days 30.0" 31 days 39 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 0.49
10/3/2017 0.28
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 0.50
10/10/2017 0.19
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 0.04
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 0.00
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 0.09
11/6/2017 0.01
11/7/2017 0.27
11/8/2017 0.04
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 0.03
11/19/2017 0.00
11/20/2017 0.00
11/21/2017 0.00
11/22/2017 0.02
11/23/2017 0.00
11/24/2017 0.00
11/25/2017 0.00
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 0.00
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 0.03
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 0.10
12/22/2017 0.05
12/23/2017 0.00
12/24/2017 0.13
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 0.01
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 0.03
1/12/2018 0.00
1/13/2018 T
1/14/2018 0.00
1/15/2018 T
1/16/2018 0.05
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.16
1/22/2018 0.16
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 0.03
2/2/2018 0.03
2/3/2018 0.00
2/4/2018 T
2/5/2018 0.01
2/6/2018 0.00
2/7/2018 0.00
2/8/2018 0.00
2/9/2018 0.00
2/10/2018 0.06
2/11/2018 0.04
2/12/2018 0.00
2/13/2018 T
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.01
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.01
2/20/2018 0.27
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.00
2/24/2018 0.10
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 0.14
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.62
3/20/2018 T
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 0.18
3/28/2018 0.00
3/29/2018 0.16
3/30/2018 0.01
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.01
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 0.10
4/8/2018 0.00
4/9/2018 T
4/10/2018 0.06
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 0.31
4/22/2018 0.09
4/23/2018 0.00
4/24/2018 0.20
4/25/2018 0.15
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 0.00
5/2/2018 0.04
5/3/2018 0.94
5/4/2018 0.43
5/5/2018 0.00
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 0.08
5/13/2018 0.26
5/14/2018 0.83
5/15/2018 0.00
5/16/2018 0.00
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.74
5/20/2018 0.08
5/21/2018 0.01
5/22/2018 0.00
5/23/2018 0.44
5/24/2018 0.00
5/25/2018 T
5/26/2018 0.00
5/27/2018 0.00
5/28/2018 0.00
5/29/2018 0.20
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 0.06
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 0.05
6/17/2018 T
6/18/2018 0.13
6/19/2018 0.25
6/20/2018 0.10
6/21/2018 0.00
6/22/2018 0.00
6/23/2018 0.00
6/24/2018 0.01
6/25/2018 0.05
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 0.08
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 0.00
7/5/2018 T
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 0.37
7/17/2018 0.00
7/18/2018 0.00
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 0.00
7/23/2018 0.22
7/24/2018 0.62
7/25/2018 0.00
7/26/2018 0.39
7/27/2018 0.01
7/28/2018 0.04
7/29/2018 0.02
7/30/2018 0.00
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.05
8/5/2018 T
8/6/2018 0.00
8/7/2018 0.00
8/8/2018 T
8/9/2018 0.00
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 0.47
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 0.00
8/19/2018 0.80
8/20/2018 0.00
8/21/2018 0.00
8/22/2018 0.01
8/23/2018 0.00
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.00
8/27/2018 0.03
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 T
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.17
9/6/2018 T
9/7/2018 0.02
9/8/2018 0.00
9/9/2018 0.00
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 0.05
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 0.0 M 0.0 M Brief shower around 6pm.
10/2/2017 7:00 AM 0.49 0.0 M 0.0 M Moderate rain at obs time.
10/3/2017 7:00 AM 0.28 0.0 M 0.0 M Low temp 31.2ºF...first freeze of season. Storm total rainfall 0.76"
10/4/2017 7:00 AM 0.00 0.0 M 0.0 M
10/5/2017 7:00 AM 0.00 0.0 M 0.0 M
10/6/2017 7:00 AM 0.00 0.0 M 0.0 M
10/7/2017 7:00 AM 0.00 0.0 M 0.0 M
10/8/2017 7:00 AM 0.00 0.0 M 0.0 M
10/9/2017 7:00 AM 0.50 1.1 M 1.0 M
10/10/2017 7:00 AM 0.19 1.6 M T M Storm totals: 2.7" snowfall; 0.69" pcpn.
10/11/2017 7:00 AM 0.00 0.0 M 0.0 M
10/12/2017 7:00 AM 0.00 0.0 M 0.0 M
10/13/2017 7:00 AM 0.00 0.0 M 0.0 M
10/14/2017 7:00 AM 0.00 0.0 M 0.0 M
10/15/2017 7:00 AM 0.00 0.0 M 0.0 M
10/16/2017 7:00 AM 0.00 0.0 M 0.0 M
10/17/2017 7:00 AM 0.00 0.0 M 0.0 M
10/18/2017 7:00 AM 0.00 0.0 M 0.0 M
10/19/2017 7:00 AM 0.00 0.0 M 0.0 M
10/20/2017 7:00 AM 0.00 0.0 M 0.0 M
10/21/2017 7:00 AM 0.00 0.0 M 0.0 M
10/22/2017 7:00 AM 0.00 0.0 M 0.0 M
10/23/2017 7:00 AM 0.00 0.0 M 0.0 M
10/24/2017 7:00 AM 0.00 0.0 M 0.0 M
10/25/2017 7:00 AM 0.00 0.0 M 0.0 M
10/26/2017 7:00 AM 0.00 0.0 M 0.0 M
10/27/2017 7:00 AM 0.04 0.1 M T M
10/28/2017 7:00 AM 0.00 0.0 M 0.0 M
10/29/2017 7:00 AM 0.00 0.0 M 0.0 M
10/30/2017 7:00 AM 0.00 0.0 M 0.0 M
10/31/2017 7:00 AM 0.01 0.2 M T M My 6000th COCORaHS report today; first one was 3-31-2001
11/1/2017 7:00 AM 0.00 0.0 M 0.0 M
11/2/2017 7:00 AM 0.00 0.0 M 0.0 M
11/3/2017 7:00 AM 0.00 0.0 M 0.0 M
11/4/2017 7:00 AM 0.00 0.0 M 0.0 M
11/5/2017 7:00 AM 0.09 0.0 M 0.0 M Light rain since early morning hours.
11/6/2017 7:00 AM 0.01 0.0 M 0.0 M
11/7/2017 8:00 AM 0.27 3.3 M 3.5 M
11/8/2017 7:00 AM 0.04 0.1 M 3.0 M
11/9/2017 7:00 AM 0.00 0.0 M T M
11/10/2017 7:00 AM 0.00 0.0 M 0.0 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 0.0 M
11/15/2017 6:15 AM 0.00 0.0 M 0.0 M
11/16/2017 7:00 AM 0.00 0.0 M 0.0 M
11/17/2017 7:00 AM 0.00 0.0 M 0.0 M
11/18/2017 7:00 AM 0.03 0.0 M 0.0 M
11/19/2017 7:00 AM 0.00 0.0 M 0.0 M
11/20/2017 7:00 AM 0.00 0.0 M 0.0 M
11/21/2017 7:00 AM 0.00 0.0 M 0.0 M
11/22/2017 7:00 AM 0.02 0.0 M 0.0 M Light rain shwrs Tue a.m.
11/23/2017 7:00 AM 0.00 0.0 M 0.0 M
11/24/2017 7:00 AM 0.00 0.0 M 0.0 M
11/25/2017 7:00 AM 0.00 0.0 M 0.0 M
11/26/2017 7:00 AM 0.00 0.0 M 0.0 M
11/27/2017 7:00 AM 0.00 0.0 M 0.0 M
11/28/2017 7:00 AM 0.00 0.0 M 0.0 M
11/29/2017 7:00 AM 0.00 0.0 M 0.0 M
11/30/2017 7:00 AM 0.00 0.0 M 0.0 M
12/1/2017 7:00 AM 0.00 0.0 M 0.0 M
12/2/2017 7:00 AM 0.00 0.0 M 0.0 M
12/3/2017 6:30 AM 0.00 0.0 M 0.0 M
12/4/2017 7:00 AM 0.00 0.0 M 0.0 M
12/5/2017 7:00 AM 0.00 0.0 M 0.0 M Min temp 10ºF, lowest of the season thus far.
12/6/2017 7:00 AM 0.00 0.0 M 0.0 M
12/7/2017 7:00 AM 0.00 0.0 M 0.0 M
12/8/2017 7:00 AM 0.00 0.0 M 0.0 M
12/9/2017 7:00 AM 0.00 0.0 M 0.0 M
12/10/2017 7:00 AM 0.00 0.0 M 0.0 M
12/11/2017 7:00 AM 0.00 0.0 M 0.0 M
12/12/2017 7:00 AM 0.00 0.0 M 0.0 M
12/13/2017 7:00 AM 0.00 0.0 M 0.0 M
12/14/2017 6:30 AM 0.03 0.4 M 0.5 M
12/15/2017 7:00 AM 0.00 0.0 M 0.0 M
12/16/2017 7:00 AM 0.00 0.0 M 0.0 M
12/17/2017 7:00 AM T 0.0 M 0.0 M
12/18/2017 7:00 AM T 0.0 M 0.0 M
12/19/2017 7:00 AM 0.00 0.0 M 0.0 M
12/20/2017 7:00 AM 0.00 0.0 M 0.0 M
12/21/2017 7:00 AM 0.10 1.2 M 1.0 M
12/22/2017 7:00 AM 0.05 0.6 M 1.5 M Storm total 1.8" snowfall; min temp 3º
12/23/2017 7:00 AM 0.00 0.0 M 1.0 M
12/24/2017 7:00 AM 0.13 2.5 M 3.0 M Min temp current -8.8ºF.
12/25/2017 7:00 AM 0.00 0.0 M 2.5 M
12/26/2017 7:00 AM T T M 2.5 M
12/27/2017 7:00 AM T T M 2.5 M
12/28/2017 7:00 AM 0.00 0.0 M 1.0 M
12/29/2017 7:00 AM 0.00 0.0 M 0.5 M
12/30/2017 7:00 AM 0.01 0.2 M T M
12/31/2017 7:00 AM T T M T M
1/1/2018 7:00 AM T T M T M CY2017 pcpn 13.73", about half an inch below normal.
1/2/2018 7:00 AM 0.00 0.0 M T M
1/3/2018 7:00 AM 0.00 0.0 M T M
1/4/2018 7:00 AM 0.00 0.0 M 0.0 M
1/5/2018 7:00 AM 0.00 0.0 M 0.0 M
1/6/2018 7:00 AM 0.00 0.0 M 0.0 M
1/7/2018 7:00 AM 0.00 0.0 M 0.0 M
1/8/2018 7:00 AM 0.00 0.0 M 0.0 M
1/9/2018 7:00 AM 0.00 0.0 M 0.0 M
1/10/2018 7:00 AM 0.00 0.0 M 0.0 M
1/11/2018 7:00 AM 0.03 0.0 M 0.0 M Very brief moderate rain shower early evening...heard it on the roof while sitting indoors. Highly unusual for Jan. 10 around here.
1/12/2018 7:00 AM 0.00 0.0 M 0.0 M
1/13/2018 7:00 AM T T M 0.0 M Few flurries at midday.
1/14/2018 7:00 AM 0.00 0.0 M 0.0 M
1/15/2018 7:00 AM T T M T M
1/16/2018 7:00 AM 0.05 1.2 M 0.5 M Current temp -4.0ºF
1/17/2018 7:00 AM 0.00 0.0 M T M
1/18/2018 7:00 AM 0.00 0.0 M 0.0 M
1/19/2018 7:00 AM 0.00 0.0 M 0.0 M
1/20/2018 7:00 AM 0.00 0.0 M 0.0 M
1/21/2018 7:00 AM 0.16 1.6 M 1.5 M
1/22/2018 7:00 AM 0.16 1.9 M 3.0 M Storm totals: 3.5" snowfall; 0.32 pcpn.
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 1.0 M
1/25/2018 7:00 AM 0.00 0.0 M 1.0 M
1/26/2018 7:00 AM 0.00 0.0 M 1.0 M
1/27/2018 7:00 AM 0.00 0.0 M 1.0 M
1/28/2018 7:00 AM 0.00 0.0 M 1.0 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 0.0 M
2/1/2018 7:00 AM 0.03 0.6 M 0.5 M
2/2/2018 7:00 AM 0.03 0.5 M 0.5 M Storm total 1.1" snowfall.
2/3/2018 7:00 AM 0.00 0.0 M 0.0 M
2/4/2018 7:00 AM T T M T M Very light snow began during last hour.
2/5/2018 7:00 AM 0.01 0.1 M 0.0 M
2/6/2018 7:00 AM 0.00 0.0 M 0.0 M
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
2/10/2018 7:00 AM 0.06 1.4 M 1.5 M
2/11/2018 7:00 AM 0.04 1.2 M 2.5 M Min temp -1.5º
2/12/2018 7:00 AM 0.00 0.0 M 1.0 M
2/13/2018 7:00 AM T T M 0.5 M
2/14/2018 7:00 AM 0.00 0.0 M 0.0 M
2/15/2018 7:00 AM 0.00 0.0 M 0.0 M
2/16/2018 7:00 AM 0.01 0.2 M T M
2/17/2018 7:00 AM 0.00 0.0 M 0.0 M
2/18/2018 7:00 AM 0.00 0.0 M 0.0 M
2/19/2018 7:00 AM 0.01 0.8 M 1.0 M
2/20/2018 6:30 AM 0.27 4.3 M 5.0 M Storm totals 5.1" snowfall; 0.28" pcpn. Current temp -7.9ºF
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 3.5 M
2/23/2018 7:00 AM 0.00 0.0 M 3.0 M
2/24/2018 7:00 AM 0.10 1.5 M 4.0 M
2/25/2018 7:00 AM 0.00 0.0 M 2.0 M
2/26/2018 7:00 AM 0.00 0.0 M 1.0 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 0.0 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
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 0.14 0.0 M 0.0 M
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 0.62 0.3 M T M
3/20/2018 7:00 AM T T M 0.0 M
3/21/2018 7:00 AM 0.00 0.0 M 0.0 M
3/22/2018 7:00 AM 0.00 0.0 M 0.0 M
3/23/2018 7:00 AM 0.00 0.0 M 0.0 M
3/24/2018 7:00 AM T 0.0 M 0.0 M
3/25/2018 7:00 AM 0.00 0.0 M 0.0 M
3/26/2018 7:00 AM 0.02 0.0 M 0.0 M Late evening rain shower.
3/27/2018 7:30 AM 0.18 0.2 M T M
3/28/2018 7:00 AM 0.00 0.0 M 0.0 M
3/29/2018 7:00 AM 0.16 0.4 M T M
3/30/2018 7:00 AM 0.01 0.0 M 0.0 M Brief rain/graupel shower mid afternoon.
3/31/2018 7:00 AM 0.00 0.0 M 0.0 M
4/1/2018 7:00 AM 0.01 0.2 M T M Light snow began at 6am.
4/2/2018 7:00 AM T T M 0.0 M
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 0.10 0.9 M T M 0.8" snowfall yesterday; another tenth early this morning before sunrise.
4/8/2018 7:00 AM 0.00 0.0 M 0.0 M
4/9/2018 7:00 AM T 0.0 M 0.0 M
4/10/2018 7:00 AM 0.06 0.0 M 0.0 M Rain shower just after yesterday's obs, 7-8am.
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 0.0 M
4/15/2018 7:00 AM 0.00 0.0 M 0.0 M
4/16/2018 7:00 AM 0.00 0.0 M 0.0 M
4/17/2018 7:00 AM 0.00 0.0 M 0.0 M
4/18/2018 7:00 AM 0.00 0.0 M 0.0 M
4/19/2018 7:00 AM 0.00 0.0 M 0.0 M
4/20/2018 7:00 AM 0.00 0.0 M 0.0 M
4/21/2018 7:00 AM 0.31 0.7 M 0.5 M
4/22/2018 7:00 AM 0.09 0.2 M 0.0 M Storm totals 0.40" pcpn; 0.9" snowfall. Min temp 28F.
4/23/2018 7:00 AM 0.00 0.0 M 0.0 M
4/24/2018 7:00 AM 0.20 0.5 M 0.5 M
4/25/2018 7:00 AM 0.15 T M 0.0 M Clear skies; min temp 28F.
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 0.0 M
4/28/2018 7:00 AM 0.00 0.0 M 0.0 M
4/29/2018 7:00 AM 0.00 0.0 M 0.0 M
4/30/2018 7:00 AM 0.00 0.0 M 0.0 M
5/1/2018 7:00 AM 0.00 0.0 M 0.0 M
5/2/2018 7:00 AM 0.04 0.0 M 0.0 M
5/3/2018 7:00 AM 0.94 0.0 M 0.0 M
5/4/2018 7:00 AM 0.43 0.0 M 0.0 M Storm total rainfall 1.41"
5/5/2018 7:00 AM 0.00 0.0 M 0.0 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 0.08 0.0 M M M Light rain at obs time.
5/13/2018 7:00 AM 0.26 0.0 M M M
5/14/2018 7:00 AM 0.83 0.0 M M M Very heavy rain just after 730pm...tipping bucket Davis gauge recorded 0.45" in 15 min.
5/15/2018 7:00 AM 0.00 0.0 M M M
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 0.74 0.0 M M M Heavy downpour in the 5pm hour with brief small hail.
5/20/2018 7:00 AM 0.08 0.0 M M M
5/21/2018 7:00 AM 0.01 0.0 M M M
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:00 AM 0.44 0.0 M M M Tstm with brief heavy hail dropped 0.30" at 530pm; then a 2nd round two hours later added 0.14"
5/24/2018 7:00 AM 0.00 0.0 M M M
5/25/2018 7:00 AM T 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 0.20 0.0 M M M
5/30/2018 7:00 AM 0.00 0.0 M M M
5/31/2018 5:00 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 0.06 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 0.0 M M M
6/15/2018 7:00 AM 0.00 0.0 M M M
6/16/2018 7:00 AM 0.05 0.0 M M M T-storm early afternoon.
6/17/2018 6:30 AM T 0.0 M M M
6/18/2018 7:00 AM 0.13 0.0 M M M
6/19/2018 7:00 AM 0.25 0.0 M M M
6/20/2018 7:00 AM 0.10 0.0 M M M
6/21/2018 7:00 AM 0.00 0.0 M M M
6/22/2018 7:00 AM 0.00 0.0 M M M
6/23/2018 7:00 AM 0.00 0.0 M M M
6/24/2018 7:00 AM 0.01 0.0 M M M Pre-sunrise shower.
6/25/2018 7:00 AM 0.05 0.0 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 0.00 0.0 M M M
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 0.08 0.0 M M M Late afternoon T-storm w/gusty winds.
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 0.00 0.0 M M M
7/5/2018 7:00 AM T 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 0.37 0.0 M M M
7/17/2018 7:00 AM 0.00 0.0 M M M
7/18/2018 7:00 AM 0.00 0.0 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 0.00 0.0 M M M
7/23/2018 7:00 AM 0.22 0.0 M M M
7/24/2018 7:00 AM 0.62 0.0 M M M Half-inch of rain in 15 min. just before 6pm. Little wind...both my 6-inch electronic gauge and 4-inch manual gauge recorded 0.62" for the evening. Usually there's a slight difference with heavier rainfall.
7/25/2018 6:00 AM 0.00 0.0 M M M
7/26/2018 7:00 AM 0.39 0.0 M M M
7/27/2018 7:00 AM 0.01 0.0 M M M
7/28/2018 7:00 AM 0.04 0.0 M M M
7/29/2018 7:00 AM 0.02 0.0 M M M Measurable precip last 6 of 7 days.
7/30/2018 7:00 AM 0.00 0.0 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 0.05 0.0 M M M
8/5/2018 7:00 AM T 0.0 M M M Few sprinkles at obs time.
8/6/2018 7:00 AM 0.00 0.0 M M M
8/7/2018 7:00 AM 0.00 0.0 M M M
8/8/2018 7:00 AM T 0.0 M M M
8/9/2018 7:00 AM 0.00 0.0 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 0.47 0.0 M M M Precip total rain and melted hail from second gauge I keep in yard w/o funnel.
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 0.80 0.0 M M M Ran into torrential rain on northern I-25 driving back to Longmont from Bronco game around 1030-11PM. Rainfall 0.80" in my gauge when I got home; no evidence of hail.
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 0.01 0.0 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 0.00 0.0 M M M
8/27/2018 7:00 AM 0.03 0.0 M M M Rain shower at 5am.
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 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 T 0.0 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 0.17 0.0 M M M
9/6/2018 7:00 AM T 0.0 M M M
9/7/2018 7:00 AM 0.02 0.0 M M M
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 0.0 M M M Brief shower mid afternoon.
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 0.05 0.0 M M M
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 Min temp 41º
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 Current temp and min... 38.4º
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 Min temp 36º
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



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
5/18/2018 5:25 PM 3/8" 1/4" Pea Size 1/4" Pea Size Soft 10 2min no damage Continuous True After rain After smaller hail
5/22/2018 5:23 PM 3/4" Penny Size 1/2" Grape 1/4" Pea Size Hard|White Ice 8 2min minor leaf damage Continuous True After rain After smaller hail 30-40
6/18/2018 5:58 PM 5/8" 3/8" 1/4" Pea Size Hard|White Ice 8 1min minor leaf damage True After rain After smaller hail
8/14/2018 5:10 PM 1 1/4" Half Dollar Size 3/4" Penny Size 1/2" Grape Hard 8 minor leaf damage Continuous False Same time as rain Before smaller hail
8/18/2018 9:45 PM I wasn't home, going by neighbor's account. 1/4" Pea Size 1/4" Pea Size Rice Soft 15 no damage Continuous True Same time as rain Same time as smaller hail 30-40