Station Overview Station Location
Station Number CO-BO-41 Latitude 39.9742
Station Name Boulder 6.8 SE Longitude -105.152
County Boulder Elevation (ft) 5486



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 18 1.23 1.79 12 1.79 12 0.00 0 0 8 3 5.6 2 0
Nov 18 0.96 0.55 7 0.55 7 0.00 0 0 6 1 8.0 3 0
Dec 18 0.75 0.01 6 0.01 6 0.00 0 0 1 5 0.5 2 0
Jan 19 0.55 1.42 7 1.42 7 0.00 0 0 6 1 13.1 5 0
Feb 19 0.57 0.59 6 0.59 6 0.00 0 0 4 2 6.4 4 0
March 19 1.76 1.77 7 1.77 7 0.00 0 0 7 0 12.6 4 0
April 19 2.09 1.06 9 1.06 9 0.00 0 0 5 4 8.8 3 0
May 19 2.45 3.04 18 3.04 18 0.00 0 0 15 3 3.0 1 0
June 19 1.86 2.42 19 2.42 19 0.00 0 0 12 7 0.0 0 0
July 19 1.68 2.51 17 2.49 14 0.02 3 1 11 2 0.0 0 0
Aug 19 1.69 0.35 8 0.35 8 0.00 0 0 4 4 0.0 0 0
Sept 19 1.36 0.32 12 0.02 3 0.30 9 1 2 1 0.0 0 0
Water Year Totals: 16.95" 15.83" 128 days 15.51" 116 0.32" 12 days 2 81 days 33 days 58.0" 24 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
10/1/2018
10/2/2018
10/3/2018
10/4/2018 T
10/5/2018
10/6/2018 0.48
10/7/2018
10/8/2018 0.35
10/9/2018 0.15
10/10/2018 0.05
10/11/2018 0.12
10/12/2018 0.00
10/13/2018
10/14/2018 0.42
10/15/2018 0.03
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018
10/24/2018 T
10/25/2018 T
10/26/2018
10/27/2018
10/28/2018
10/29/2018
10/30/2018
10/31/2018 0.19
11/1/2018 0.02
11/2/2018
11/3/2018 0.01
11/4/2018
11/5/2018
11/6/2018
11/7/2018
11/8/2018
11/9/2018
11/10/2018
11/11/2018 0.13
11/12/2018 0.24
11/13/2018
11/14/2018
11/15/2018
11/16/2018
11/17/2018 0.01
11/18/2018 0.14
11/19/2018
11/20/2018
11/21/2018
11/22/2018
11/23/2018
11/24/2018
11/25/2018 T
11/26/2018
11/27/2018
11/28/2018
11/29/2018
11/30/2018
12/1/2018
12/2/2018
12/3/2018 0.01
12/4/2018
12/5/2018
12/6/2018 T
12/7/2018 T
12/8/2018
12/9/2018
12/10/2018
12/11/2018
12/12/2018
12/13/2018
12/14/2018
12/15/2018
12/16/2018
12/17/2018
12/18/2018
12/19/2018
12/20/2018
12/21/2018
12/22/2018
12/23/2018
12/24/2018 T
12/25/2018
12/26/2018
12/27/2018 T
12/28/2018
12/29/2018 T
12/30/2018
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.07
1/2/2019
1/3/2019
1/4/2019
1/5/2019
1/6/2019
1/7/2019
1/8/2019
1/9/2019
1/10/2019
1/11/2019 0.06
1/12/2019 0.75
1/13/2019
1/14/2019
1/15/2019
1/16/2019
1/17/2019
1/18/2019
1/19/2019 0.31
1/20/2019
1/21/2019
1/22/2019 T
1/23/2019
1/24/2019
1/25/2019 0.03
1/26/2019
1/27/2019
1/28/2019 0.20
1/29/2019
1/30/2019
1/31/2019
2/1/2019
2/2/2019
2/3/2019
2/4/2019
2/5/2019
2/6/2019
2/7/2019 0.43
2/8/2019
2/9/2019
2/10/2019
2/11/2019
2/12/2019
2/13/2019
2/14/2019
2/15/2019
2/16/2019
2/17/2019
2/18/2019 0.01
2/19/2019 0.01
2/20/2019 T
2/21/2019
2/22/2019 T
2/23/2019 0.14
2/24/2019
2/25/2019
2/26/2019
2/27/2019
2/28/2019
3/1/2019
3/2/2019
3/3/2019 0.26
3/4/2019 0.01
3/5/2019
3/6/2019
3/7/2019 0.06
3/8/2019
3/9/2019
3/10/2019
3/11/2019
3/12/2019
3/13/2019 0.20
3/14/2019 0.89
3/15/2019
3/16/2019
3/17/2019
3/18/2019
3/19/2019
3/20/2019
3/21/2019
3/22/2019
3/23/2019
3/24/2019
3/25/2019
3/26/2019
3/27/2019
3/28/2019
3/29/2019 0.03
3/30/2019 0.32
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019
4/3/2019
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019
4/9/2019
4/10/2019 T
4/11/2019 0.57
4/12/2019 T
4/13/2019 0.09
4/14/2019
4/15/2019
4/16/2019
4/17/2019 T
4/18/2019 T
4/19/2019
4/20/2019
4/21/2019
4/22/2019 0.11
4/23/2019 0.02
4/24/2019
4/25/2019
4/26/2019
4/27/2019
4/28/2019
4/29/2019
4/30/2019 0.27
5/1/2019 0.12
5/2/2019 0.04
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019 0.25
5/8/2019 0.06
5/9/2019 0.56
5/10/2019 0.17
5/11/2019
5/12/2019
5/13/2019
5/14/2019
5/15/2019
5/16/2019 T
5/17/2019
5/18/2019 0.04
5/19/2019 T
5/20/2019 0.04
5/21/2019 0.89
5/22/2019 0.02
5/23/2019 0.13
5/24/2019 0.03
5/25/2019
5/26/2019
5/27/2019 T
5/28/2019 0.60
5/29/2019 0.08
5/30/2019 0.01
5/31/2019
6/1/2019 0.01
6/2/2019 T
6/3/2019 0.08
6/4/2019 T
6/5/2019 0.01
6/6/2019 0.24
6/7/2019 T
6/8/2019 T
6/9/2019 0.42
6/10/2019
6/11/2019
6/12/2019 T
6/13/2019
6/14/2019
6/15/2019 0.05
6/16/2019 0.01
6/17/2019 0.38
6/18/2019 0.22
6/19/2019 0.06
6/20/2019 T
6/21/2019 T
6/22/2019 0.77
6/23/2019 0.17
6/24/2019
6/25/2019
6/26/2019
6/27/2019
6/28/2019
6/29/2019
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.31
7/2/2019 0.48
7/3/2019 T
7/4/2019
7/5/2019 0.34
7/6/2019 0.51
7/7/2019
7/8/2019 0.05
7/9/2019
7/10/2019
7/11/2019
7/12/2019
7/13/2019 **
7/14/2019 **
7/15/2019 0.02
7/16/2019 0.02
7/17/2019 0.10
7/18/2019
7/19/2019
7/20/2019
7/21/2019 0.25
7/22/2019 0.32
7/23/2019
7/24/2019
7/25/2019 0.02
7/26/2019 T
7/27/2019 0.00
7/28/2019 0.09
7/29/2019
7/30/2019
7/31/2019
8/1/2019 0.02
8/2/2019 0.10
8/3/2019 T
8/4/2019
8/5/2019
8/6/2019
8/7/2019
8/8/2019 0.16
8/9/2019 0.07
8/10/2019
8/11/2019
8/12/2019
8/13/2019
8/14/2019
8/15/2019
8/16/2019
8/17/2019
8/18/2019 T
8/19/2019
8/20/2019
8/21/2019
8/22/2019
8/23/2019 T
8/24/2019 T
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019
8/31/2019
9/1/2019 **
9/2/2019 **
9/3/2019 **
9/4/2019 **
9/5/2019 **
9/6/2019 **
9/7/2019 **
9/8/2019 **
9/9/2019 0.30
9/10/2019
9/11/2019
9/12/2019 0.01
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019
9/18/2019
9/19/2019 T
9/20/2019
9/21/2019
9/22/2019
9/23/2019
9/24/2019
9/25/2019
9/26/2019
9/27/2019
9/28/2019 0.01
9/29/2019
9/30/2019



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2018 7:00 AM T M M M M
10/6/2018 7:00 AM 0.48 M M M M
10/8/2018 7:00 AM 0.35 M M M M
10/9/2018 7:00 AM 0.15 M M M M
10/10/2018 7:00 AM 0.05 M M M M
10/11/2018 7:00 AM 0.12 T M M M
10/12/2018 7:00 AM 0.00 0.0 M M M
10/14/2018 7:00 AM 0.42 4.8 M M M
10/15/2018 7:00 AM 0.03 0.8 M M M
10/24/2018 7:00 AM T M M M M
10/25/2018 7:00 AM T M M M M
10/31/2018 7:00 AM 0.19 M M M M
11/1/2018 7:00 AM 0.02 M M M M
11/3/2018 7:00 AM 0.01 M M M M
11/11/2018 7:00 AM 0.13 2.0 M M M
11/12/2018 7:00 AM 0.24 5.0 0.29 M M
11/17/2018 7:00 AM 0.01 M M M M
11/18/2018 7:00 AM 0.14 1.0 M M M
11/25/2018 7:00 AM T M M M M
12/3/2018 7:00 AM 0.01 0.3 M M M
12/6/2018 7:00 AM T 0.2 M M M
12/7/2018 7:00 AM T M M M M
12/24/2018 7:00 AM T M M M M
12/27/2018 7:00 AM T M M M M
12/29/2018 7:00 AM T M M M M
1/1/2019 7:00 AM 0.07 1.8 M M M
1/11/2019 7:00 AM 0.06 M M M M
1/12/2019 7:00 AM 0.75 4.2 M M M
1/19/2019 7:00 AM 0.31 1.4 M M M
1/22/2019 7:00 AM T M M M M
1/25/2019 7:00 AM 0.03 2.5 M M M
1/28/2019 7:00 AM 0.20 3.2 0.22 M M
2/7/2019 7:00 AM 0.43 4.7 0.34 M M
2/18/2019 7:00 AM 0.01 0.2 M M M
2/19/2019 8:10 AM 0.01 0.1 M M M
2/20/2019 7:00 AM T T M M M
2/22/2019 7:00 AM T T M M M
2/23/2019 7:00 AM 0.14 1.4 M M M
3/3/2019 7:00 AM 0.26 3.8 M M M
3/4/2019 7:00 AM 0.01 0.6 M M M
3/7/2019 7:00 AM 0.06 T M M M Trace of graupel midafternoon, but melted. Mostly ice on snowboard with just a dusting of snow on top, frozen to the ice.
3/13/2019 7:00 AM 0.20 M M M M
3/14/2019 7:00 AM 0.89 4.2 M M M Snow frozen to snowboard. Depth measured may be less than actual amount. No way to get accurate core. Snow cap on gauge, so measured amount may be short.
3/29/2019 7:40 AM 0.03 M M M M
3/30/2019 7:00 AM 0.32 4.0 0.27 M M
4/10/2019 7:00 AM T M M M M
4/11/2019 7:00 AM 0.57 4.8 0.55 M M
4/12/2019 7:00 AM T M M M M
4/13/2019 7:00 AM 0.09 1.0 M M M
4/17/2019 7:00 AM T M M M M
4/18/2019 7:00 AM T M M M M
4/22/2019 7:00 AM 0.11 M M M M
4/23/2019 7:00 AM 0.02 M M M M
4/30/2019 7:00 AM 0.27 3.0 M M M
5/1/2019 7:00 AM 0.12 M M M M
5/2/2019 7:00 AM 0.04 M M M M
5/7/2019 7:00 AM 0.25 M M M M
5/8/2019 7:00 AM 0.06 M M M M
5/9/2019 7:00 AM 0.56 M M M M
5/10/2019 6:39 AM 0.17 M M M M
5/16/2019 7:00 AM T M M M M
5/18/2019 6:30 AM 0.04 M M M M
5/19/2019 7:00 AM T M M M M
5/20/2019 6:30 AM 0.04 M M M M
5/21/2019 7:00 AM 0.89 3.0 M M M
5/22/2019 7:00 AM 0.02 M M M M
5/23/2019 7:00 AM 0.13 M M M M
5/24/2019 6:30 AM 0.03 M M M M
5/27/2019 6:30 AM T M M M M
5/28/2019 6:30 AM 0.60 M M M M
5/29/2019 7:00 AM 0.08 M M M M
5/30/2019 8:00 AM 0.01 M M M M
6/1/2019 7:00 AM 0.01 M M M M
6/2/2019 7:00 AM T M M M M
6/3/2019 6:30 AM 0.08 M M M M
6/4/2019 7:00 AM T M M M M
6/5/2019 6:30 AM 0.01 M M M M
6/6/2019 6:00 AM 0.24 M M M M
6/7/2019 5:00 AM T M M M M
6/8/2019 7:00 AM T M M M M
6/9/2019 7:00 AM 0.42 M M M M
6/12/2019 7:00 AM T M M M M
6/15/2019 7:00 AM 0.05 M M M M
6/16/2019 6:30 AM 0.01 M M M M
6/17/2019 6:20 AM 0.38 M M M M
6/18/2019 6:00 AM 0.22 M M M M
6/19/2019 7:00 AM 0.06 M M M M
6/20/2019 7:00 AM T M M M M
6/21/2019 6:30 AM T M M M M
6/22/2019 7:00 AM 0.77 M M M M
6/23/2019 6:30 AM 0.17 M M M M
7/1/2019 7:00 AM 0.31 M M M M
7/2/2019 6:00 AM 0.48 M M M M
7/3/2019 7:00 AM T M M M M
7/5/2019 7:00 AM 0.34 M M M M
7/6/2019 7:00 AM 0.51 M M M M
7/8/2019 7:00 AM 0.05 M M M M
7/16/2019 7:00 AM 0.02 M M M M
7/17/2019 7:00 AM 0.10 M M M M
7/21/2019 7:00 AM 0.25 M M M M
7/22/2019 7:00 AM 0.32 M M M M
7/25/2019 7:00 AM 0.02 M M M M
7/26/2019 7:00 AM T M M M M
7/27/2019 7:00 AM 0.00 0.0 M M M
7/28/2019 7:00 AM 0.09 M M M M
8/1/2019 7:00 AM 0.02 M M M M
8/2/2019 7:00 AM 0.10 M M M M
8/3/2019 7:00 AM T M M M M
8/8/2019 7:00 AM 0.16 M M M M
8/9/2019 7:00 AM 0.07 M M M M
8/18/2019 7:00 AM T M M M M
8/23/2019 7:00 AM T M M M M
8/24/2019 7:00 AM T M M M M
9/12/2019 6:30 AM 0.01 M M M M
9/19/2019 7:00 AM T M M M M
9/28/2019 7:00 AM 0.01 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
7/13/2019 7/15/2019 7:00 AM 3 0.02 M M
9/1/2019 9/09/2019 7:00 AM 9 0.30 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