Station Overview Station Location
Station Number CO-LR-1116 Latitude 40.678139
Station Name Fort Collins 8.6 N Longitude -105.046556
County Larimer Elevation (ft) 5205



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 1.09 1.60 29 0.83 25 0.77 4 2 3 4 0.0 0 0
Nov 17 0.57 0.39 24 0.39 24 0.00 0 0 4 2 0.0 0 0
Dec 17 0.37 0.04 23 0.03 16 0.01 7 1 2 4 0.0 0 0
Jan 18 0.25 0.08 23 0.00 14 0.08 9 3 0 2 0.0 0 0
Feb 18 0.31 0.71 28 0.32 14 0.39 14 5 4 3 0.0 0 0
March 18 1.26 0.83 25 0.81 17 0.02 8 2 3 2 0.0 0 0
April 18 1.93 0.59 25 0.06 14 0.53 11 4 1 2 0.0 0 0
May 18 2.51 4.45 30 3.53 15 0.92 15 4 5 2 0.0 0 0
June 18 2.39 0.96 31 0.00 13 0.96 18 5 0 4 0.0 0 0
July 18 1.18 2.34 26 2.06 23 0.28 3 1 12 4 0.0 0 0
Aug 18 1.37 0.53 30 0.51 27 0.02 3 1 5 6 0.0 0 0
Sept 18 1.26 1.07 26 1.04 17 0.03 9 3 5 2 0.0 0 0
Water Year Totals: 14.49" 13.59" 320 days 9.58" 219 4.01" 101 days 31 44 days 37 days 0.0" 0 days 0 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 **
10/2/2017 0.45
10/3/2017 **
10/4/2017 0.32
10/5/2017 T
10/6/2017 0.00
10/7/2017 T
10/8/2017 0.00
10/9/2017 0.52
10/10/2017 0.30
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
10/22/2017
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 T
11/1/2017 0.00
11/2/2017 0.00
11/3/2017 0.00
11/4/2017
11/5/2017
11/6/2017 0.10
11/7/2017 0.26
11/8/2017 T
11/9/2017
11/10/2017
11/11/2017
11/12/2017
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 0.02
11/22/2017 0.00
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 0.00
12/5/2017 0.00
12/6/2017
12/7/2017 0.00
12/8/2017
12/9/2017
12/10/2017
12/11/2017 0.00
12/12/2017
12/13/2017
12/14/2017 T
12/15/2017 **
12/16/2017 **
12/17/2017 **
12/18/2017 0.01
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.02
12/22/2017 T
12/23/2017
12/24/2017 0.01
12/25/2017
12/26/2017 T
12/27/2017 T
12/28/2017 0.00
12/29/2017 **
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 **
1/2/2018 T
1/3/2018 0.00
1/4/2018 0.00
1/5/2018
1/6/2018
1/7/2018
1/8/2018 0.00
1/9/2018 0.00
1/10/2018 0.00
1/11/2018 T
1/12/2018
1/13/2018
1/14/2018
1/15/2018
1/16/2018 T
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 **
1/21/2018 **
1/22/2018 **
1/23/2018 0.08
1/24/2018 0.00
1/25/2018 0.00
1/26/2018
1/27/2018 **
1/28/2018 **
1/29/2018 0.00
1/30/2018 0.00
1/31/2018 0.00
2/1/2018 0.25
2/2/2018 0.04
2/3/2018
2/4/2018
2/5/2018 0.02
2/6/2018 T
2/7/2018 0.00
2/8/2018 0.00
2/9/2018 T
2/10/2018 **
2/11/2018 **
2/12/2018 0.10
2/13/2018 T
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.00
2/17/2018 **
2/18/2018 **
2/19/2018 **
2/20/2018 0.17
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.01
2/24/2018 **
2/25/2018 **
2/26/2018 0.02
2/27/2018 **
2/28/2018 0.00
3/1/2018
3/2/2018
3/3/2018 **
3/4/2018 **
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 T
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 0.41
3/20/2018 0.00
3/21/2018
3/22/2018
3/23/2018 **
3/24/2018 **
3/25/2018 **
3/26/2018 0.02
3/27/2018 T
3/28/2018
3/29/2018 0.26
3/30/2018
3/31/2018 **
Day of YearDaily PrcpMultiday Prcp
4/1/2018 **
4/2/2018 0.01
4/3/2018 0.00
4/4/2018 0.00
4/5/2018
4/6/2018
4/7/2018 **
4/8/2018 **
4/9/2018 0.06
4/10/2018 T
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.00
4/14/2018
4/15/2018
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 **
4/22/2018 **
4/23/2018 0.46
4/24/2018 0.06
4/25/2018 T
4/26/2018 0.00
4/27/2018
4/28/2018 **
4/29/2018 **
4/30/2018 0.00
5/1/2018 T
5/2/2018 0.21
5/3/2018 1.66
5/4/2018 0.74
5/5/2018 **
5/6/2018 **
5/7/2018 0.00
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 **
5/11/2018 **
5/12/2018 **
5/13/2018 **
5/14/2018 0.39
5/15/2018 0.27
5/16/2018 0.00
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 **
5/20/2018 **
5/21/2018 0.40
5/22/2018 0.00
5/23/2018 0.65
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 **
5/27/2018 **
5/28/2018 **
5/29/2018 0.13
5/30/2018 T
5/31/2018
6/1/2018 **
6/2/2018 **
6/3/2018 **
6/4/2018 0.00
6/5/2018 T
6/6/2018 0.00
6/7/2018 T
6/8/2018 T
6/9/2018 **
6/10/2018 **
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 0.00
6/15/2018 **
6/16/2018 **
6/17/2018 **
6/18/2018 0.12
6/19/2018 0.00
6/20/2018 **
6/21/2018 **
6/22/2018 **
6/23/2018 **
6/24/2018 **
6/25/2018 0.17
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 T
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.70
7/2/2018 0.00
7/3/2018 0.01
7/4/2018 0.05
7/5/2018 0.01
7/6/2018 0.00
7/7/2018
7/8/2018
7/9/2018 0.01
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.26
7/14/2018 **
7/15/2018 **
7/16/2018 0.28
7/17/2018 T
7/18/2018 T
7/19/2018 0.00
7/20/2018
7/21/2018
7/22/2018
7/23/2018 0.11
7/24/2018 0.05
7/25/2018 T
7/26/2018 0.23
7/27/2018 0.15
7/28/2018 T
7/29/2018 0.13
7/30/2018 0.35
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018
8/4/2018 0.01
8/5/2018 0.00
8/6/2018 0.17
8/7/2018 T
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 T
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 0.00
8/19/2018 0.31
8/20/2018 0.01
8/21/2018 T
8/22/2018 0.01
8/23/2018 T
8/24/2018 0.00
8/25/2018 **
8/26/2018 **
8/27/2018 0.02
8/28/2018 T
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 T
9/2/2018 **
9/3/2018 0.00
9/4/2018
9/5/2018 0.03
9/6/2018 0.00
9/7/2018 T
9/8/2018 **
9/9/2018 **
9/10/2018 0.03
9/11/2018 0.00
9/12/2018 0.04
9/13/2018 0.00
9/14/2018 **
9/15/2018 **
9/16/2018 **
9/17/2018 0.00
9/18/2018 0.00
9/19/2018 0.00
9/20/2018 0.92
9/21/2018
9/22/2018
9/23/2018
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 0.04
9/30/2018 0.01



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/5/2017 7:00 AM T M M M M
10/6/2017 7:00 AM 0.00 0.0 M M M
10/7/2017 7:00 AM T M M M M
10/8/2017 7:00 AM 0.00 0.0 M M M
10/9/2017 7:00 AM 0.52 M M M M
10/10/2017 7:00 AM 0.30 M 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
10/23/2017 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 M 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 M M M M
10/31/2017 7:00 AM T 0.0 M M M
11/1/2017 7:00 AM 0.00 0.0 M M M
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
11/6/2017 7:00 AM 0.10 M M M M
11/7/2017 7:00 AM 0.26 M M M M
11/8/2017 7:00 AM T M M M M Freezing fog this morning at observation time.
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
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 0.02 M 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 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 0.00 0.0 M M M
12/5/2017 7:00 AM 0.00 0.0 M M M
12/7/2017 7:00 AM 0.00 0.0 M M M
12/11/2017 7:00 AM 0.00 0.0 M M M
12/14/2017 7:00 AM T M 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 0.02 M M M M
12/22/2017 7:00 AM T M M M M
12/24/2017 7:00 AM 0.01 M M M M
12/26/2017 7:00 AM T M M M M
12/27/2017 7:00 AM T M M M M
12/28/2017 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
1/8/2018 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
1/16/2018 7:00 AM T M M M 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
1/24/2018 7:00 AM 0.00 0.0 M M M
1/25/2018 7:00 AM 0.00 0.0 M M M
1/30/2018 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 0.25 M M M M
2/2/2018 7:00 AM 0.04 M M M M
2/5/2018 7:00 AM 0.02 M M M M
2/6/2018 7:00 AM T M M M M Light snow showers observed on afternoon of 05 February
2/7/2018 7:00 AM 0.00 0.0 M M M
2/8/2018 7:00 AM 0.00 0.0 M M M
2/9/2018 7:00 AM T M M M M
2/13/2018 7:00 AM T M M M M Light snow observed off and on during the day on 12 Feb.
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
2/21/2018 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 M M M M
3/6/2018 7:00 AM 0.00 0.0 M M M
3/7/2018 7:00 AM 0.00 0.0 M M M
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 0.00 0.0 M M M
3/12/2018 7:00 AM 0.00 0.0 M M M
3/13/2018 7:00 AM T M M M M
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 0.14 M M M M
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 0.41 M M M M
3/20/2018 7:00 AM 0.00 0.0 M M M
3/27/2018 7:00 AM T M M M M
3/29/2018 7:00 AM 0.26 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
4/10/2018 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 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
4/24/2018 7:00 AM 0.06 M M M M Light snow falling when reading taken. No accumulation.
4/25/2018 7:00 AM T M M M M Light snow observed Tuesday morning, 24 April, ending around noon. No accumulation.
4/26/2018 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 0.21 M M M M
5/3/2018 7:00 AM 1.66 M M M M
5/4/2018 7:00 AM 0.74 M 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
5/15/2018 7:00 AM 0.27 M 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
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:00 AM 0.65 M M M M Rain from thunderstorms passing through the area Tuesday evening, 22 May.
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
5/30/2018 7:00 AM T M M M M
6/5/2018 7:00 AM T M M M M A few raindrops observed Monday afternoon.
6/6/2018 7:00 AM 0.00 0.0 M M M
6/7/2018 6:53 AM T M M M M
6/8/2018 7:00 AM T M 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
6/19/2018 7:00 AM 0.00 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 T M 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 0.70 M M M M
7/2/2018 7:00 AM 0.00 0.0 M M M
7/3/2018 7:00 AM 0.01 M M M M
7/4/2018 7:00 AM 0.05 M M M M
7/5/2018 7:00 AM 0.01 M M M M
7/6/2018 7:00 AM 0.00 0.0 M M M
7/9/2018 7:00 AM 0.01 M 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 0.26 M M M M
7/17/2018 7:00 AM T 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
7/23/2018 7:00 AM 0.11 M M M M
7/24/2018 7:00 AM 0.05 M M M M
7/25/2018 7:00 AM T M M M M
7/26/2018 7:00 AM 0.23 M M M M
7/27/2018 7:00 AM 0.15 M M M M
7/28/2018 7:00 AM T M M M M
7/29/2018 7:00 AM 0.13 M M M M
7/30/2018 7:00 AM 0.35 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
8/4/2018 7:00 AM 0.01 M M M M
8/5/2018 7:00 AM 0.00 0.0 M M M
8/6/2018 7:00 AM 0.17 M M M M
8/7/2018 7:00 AM T M M M M
8/8/2018 7:00 AM T M 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 T 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 0.31 M M M M
8/20/2018 7:00 AM 0.01 M M M M
8/21/2018 7:00 AM T M M M M
8/22/2018 7:00 AM 0.01 M M M M
8/23/2018 7:00 AM T 0.0 M M M
8/24/2018 7:00 AM 0.00 0.0 M M M
8/28/2018 7:00 AM T M 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 M M M M
9/5/2018 7:00 AM 0.03 M M M M
9/6/2018 7:00 AM 0.00 0.0 M M M
9/7/2018 7:00 AM T M M M M
9/11/2018 7:00 AM 0.00 0.0 M M M
9/12/2018 7:00 AM 0.04 M M M M Rain from thunderstorms passing over site mid-day Tuesday.
9/13/2018 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 0.92 M M M M Late afternoon and evening thunderstorms, 19 September.
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 0.04 M M M M
9/30/2018 7:00 AM 0.01 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/30/2017 10/02/2017 7:00 AM 3 0.45 M M
10/3/2017 10/04/2017 7:00 AM 2 0.32 M M
12/15/2017 12/18/2017 7:00 AM 4 0.01 M M
12/29/2017 1/02/2018 7:00 AM 5 T M M
1/20/2018 1/23/2018 7:00 AM 4 0.08 M M
1/27/2018 1/29/2018 7:00 AM 3 0.00 M M
2/10/2018 2/12/2018 7:00 AM 3 0.10 M M
2/11/2018 2/12/2018 7:00 AM 2 0.10 M M
2/17/2018 2/20/2018 7:00 AM 4 0.17 2.5 M
2/24/2018 2/26/2018 7:00 AM 3 0.02 M M
2/27/2018 2/28/2018 7:00 AM 2 0.00 M M
3/3/2018 3/05/2018 7:00 AM 3 0.00 M M
3/23/2018 3/26/2018 7:00 AM 4 0.02 M M
3/31/2018 4/02/2018 7:00 AM 3 0.01 M M
4/7/2018 4/09/2018 7:00 AM 3 0.06 M M
4/21/2018 4/23/2018 7:00 AM 3 0.46 M M
4/28/2018 4/30/2018 7:00 AM 3 0.00 M M
5/5/2018 5/07/2018 7:00 AM 3 0.00 M M
5/10/2018 5/14/2018 7:00 AM 5 0.39 M M
5/19/2018 5/21/2018 7:00 AM 3 0.40 M M
5/26/2018 5/29/2018 7:00 AM 4 0.13 M M
6/1/2018 6/04/2018 7:00 AM 4 0.00 M M
6/9/2018 6/11/2018 7:00 AM 3 0.00 M M
6/15/2018 6/18/2018 7:00 AM 4 0.12 M M
6/20/2018 6/21/2018 7:00 AM 2 0.67 M M Near-golf ball sized hail fell on station afternoon of 20 June.
6/21/2018 6/25/2018 7:00 AM 5 0.17 M M
7/14/2018 7/16/2018 7:00 AM 3 0.28 M M
8/25/2018 8/27/2018 7:00 AM 3 0.02 M M
9/2/2018 9/03/2018 7:00 AM 2 0.00 M M
9/8/2018 9/10/2018 7:00 AM 3 0.03 M M
9/14/2018 9/17/2018 7:00 AM 4 0.00 M M



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
1/1/0001 12:00 AM Hail fell at work site, which was unmanned at the time. Believed to have occurred during a thunderstorm observed passing through on evening of May 1. Evidence of hail found on hail pad and minor leaf damage on trees. {Observer did not indicate North on the hail pad CoCoSTAFF DNT} 3/8" 1/4" Pea Size Rice minor leaf damage False 10-20 100 0.75
1/1/0001 12:00 AM Non-standard (homemade) hail board used to record the event, which occurred at our worksite the weekend of 12 May 2018. Site was unmanned at the time. Board was retrieved on the morning of 14 May. Hail was observed at I-25 and CO-119 in Longmont, CO the afternoon of 12 May at about 6:00 PM. NA NA NA no damage False 1.5
5/14/2018 4:35 PM Two main episodes of hail during a thunderstorm, one at 4:35 PM lasting 2 minutes, and the other at 4:43 PM lasting 3 minutes. No accumulation noted, no damage. 1/4" Pea Size Rice Rice Hard|Clear Ice 11 1min no damage Intermittent True Same time as rain vertical 0.5
5/18/2018 4:15 PM 1 small indentation observed in non-standard (homemade) hail board. 1/4" Pea Size Rice Rice 5 1min no damage Continuous True Same time as rain Same time as smaller hail
5/22/2018 6:30 PM Hail occurred on evening of 22 May 2018, at unmanned worksite, no direct observation made, recorded on hail board only. NA NA NA minor leaf damage False 75 0.75
6/19/2018 2:14 PM Hail pad was destroyed, foil ripped and foam punctured through. We have video of the event, and numerous still photos. Heavy rain accompanied the event, and our (now cracked) rain gauge recorded 0.67”. {Hard to determine the number of hail dents on the pad as the foil has ripped in several places. I did my best to count the number of "Large Stones" and "Jumbo Stones". Observer did not indicate N on the hail pad. CoCoSTAFF DNT} 1 1/2" Ping Pong Ball Size NA 1/2" Grape White Ice 25 2min shredded leaves.car dents.damaged shingles False
1/1/0001 12:00 AM Hail was not observed, but recorded by hail board at unmanned work site on a Saturday. Other weather data logging equipment at site recorded several periods of rain between 1:25 PM and 6:00 PM local time. Hail is assumed to have fallen during one or more of those periods. NA NA NA minor leaf damage False 120 .30
1/1/0001 12:00 AM Hail recorded on hail board at unmanned work site. Believed to have occurred on afternoon/evening of 29 July. NA NA NA shredded leaves False 200 0.5