Station Overview Station Location
Station Number CO-BO-476 Latitude 40.00675
Station Name Boulder 2.9 ESE Longitude -105.2021
County Boulder Elevation (ft) 5327



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 19 1.26 1.02 9 0.54 6 0.48 3 1 2 1 5.3 2 1
Nov 19 0.95 0.07 16 0.07 3 0.00 13 3 1 1 2.4 1 0
Dec 19 0.69 0.10 4 0.10 1 0.00 3 0 1 0 2.3 1 0
Jan 20 0.56 0.00 29 0.00 0 0.00 29 3 0 0 0.0 0 0
Feb 20 0.55 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 20 1.77 1.63 11 0.56 8 1.07 3 1 3 0 0.0 0 0
April 20 2.12 0.01 9 0.01 9 0.00 0 0 1 0 0.0 0 0
May 20 2.45 2.22 27 2.22 27 0.00 0 0 9 3 0.0 0 0
June 20 1.92 2.29 30 2.29 30 0.00 0 0 7 7 0.0 0 0
July 20 1.66 0.42 31 0.42 25 0.00 6 1 6 3 0.0 0 0
Aug 20 1.60 0.55 31 0.52 29 0.03 2 1 6 5 0.0 0 0
Sept 20 1.48 0.85 29 0.85 29 0.00 0 0 5 1 2.5 1 0
Water Year Totals: 17.01" 9.16" 226 days 7.58" 167 1.58" 59 days 10 41 days 21 days 12.5" 5 days 1 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
10/1/2019 0.06
10/2/2019
10/3/2019
10/4/2019
10/5/2019
10/6/2019
10/7/2019
10/8/2019 0.00
10/9/2019
10/10/2019
10/11/2019
10/12/2019
10/13/2019
10/14/2019
10/15/2019
10/16/2019
10/17/2019
10/18/2019
10/19/2019
10/20/2019
10/21/2019
10/22/2019
10/23/2019
10/24/2019 0.48
10/25/2019 0.00
10/26/2019 0.00
10/27/2019 T
10/28/2019 **
10/29/2019 **
10/30/2019 0.48
10/31/2019
11/1/2019 **
11/2/2019 **
11/3/2019 **
11/4/2019 **
11/5/2019 **
11/6/2019 **
11/7/2019 **
11/8/2019 **
11/9/2019 T
11/10/2019
11/11/2019 0.07
11/12/2019 **
11/13/2019 0.00
11/14/2019 T
11/15/2019 **
11/16/2019 0.00
11/17/2019
11/18/2019
11/19/2019
11/20/2019
11/21/2019
11/22/2019
11/23/2019
11/24/2019
11/25/2019 0.00
11/26/2019
11/27/2019
11/28/2019
11/29/2019
11/30/2019
12/1/2019
12/2/2019
12/3/2019
12/4/2019
12/5/2019
12/6/2019
12/7/2019
12/8/2019
12/9/2019
12/10/2019
12/11/2019
12/12/2019
12/13/2019
12/14/2019
12/15/2019
12/16/2019
12/17/2019
12/18/2019
12/19/2019
12/20/2019
12/21/2019
12/22/2019
12/23/2019
12/24/2019
12/25/2019
12/26/2019
12/27/2019
12/28/2019 0.10
12/29/2019 **
12/30/2019 **
12/31/2019 **
Day of YearDaily PrcpMultiday Prcp
1/1/2020 **
1/2/2020 **
1/3/2020 **
1/4/2020 **
1/5/2020 **
1/6/2020 **
1/7/2020 **
1/8/2020 **
1/9/2020 **
1/10/2020 **
1/11/2020 **
1/12/2020 **
1/13/2020 **
1/14/2020 **
1/15/2020 **
1/16/2020 **
1/17/2020 **
1/18/2020 **
1/19/2020 **
1/20/2020 **
1/21/2020 0.00
1/22/2020 **
1/23/2020 **
1/24/2020 0.00
1/25/2020 **
1/26/2020 **
1/27/2020 **
1/28/2020 **
1/29/2020 0.00
1/30/2020
1/31/2020
2/1/2020
2/2/2020
2/3/2020
2/4/2020
2/5/2020
2/6/2020
2/7/2020
2/8/2020
2/9/2020
2/10/2020
2/11/2020
2/12/2020
2/13/2020
2/14/2020
2/15/2020
2/16/2020
2/17/2020
2/18/2020
2/19/2020
2/20/2020
2/21/2020
2/22/2020
2/23/2020
2/24/2020
2/25/2020
2/26/2020
2/27/2020
2/28/2020
2/29/2020
3/1/2020
3/2/2020
3/3/2020
3/4/2020
3/5/2020
3/6/2020
3/7/2020
3/8/2020
3/9/2020 0.22
3/10/2020 0.00
3/11/2020
3/12/2020
3/13/2020
3/14/2020
3/15/2020
3/16/2020
3/17/2020 0.05
3/18/2020 **
3/19/2020 **
3/20/2020 1.07
3/21/2020 0.00
3/22/2020
3/23/2020
3/24/2020
3/25/2020
3/26/2020
3/27/2020
3/28/2020 0.29
3/29/2020 0.00
3/30/2020 0.00
3/31/2020 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.00
4/2/2020
4/3/2020
4/4/2020
4/5/2020 0.00
4/6/2020 0.00
4/7/2020
4/8/2020
4/9/2020
4/10/2020
4/11/2020
4/12/2020
4/13/2020
4/14/2020
4/15/2020
4/16/2020
4/17/2020
4/18/2020
4/19/2020
4/20/2020
4/21/2020 0.00
4/22/2020
4/23/2020 0.01
4/24/2020
4/25/2020
4/26/2020
4/27/2020 0.00
4/28/2020 0.00
4/29/2020 0.00
4/30/2020 0.00
5/1/2020 0.00
5/2/2020 T
5/3/2020 0.22
5/4/2020 0.05
5/5/2020
5/6/2020
5/7/2020
5/8/2020
5/9/2020 0.01
5/10/2020 0.00
5/11/2020 0.00
5/12/2020 0.14
5/13/2020 0.00
5/14/2020 0.00
5/15/2020 0.59
5/16/2020 0.11
5/17/2020 0.00
5/18/2020 0.00
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.00
5/24/2020 0.00
5/25/2020 0.95
5/26/2020 0.00
5/27/2020 0.00
5/28/2020 0.07
5/29/2020 T
5/30/2020 T
5/31/2020 0.08
6/1/2020 T
6/2/2020 0.00
6/3/2020 T
6/4/2020 0.00
6/5/2020 T
6/6/2020 T
6/7/2020 0.05
6/8/2020 T
6/9/2020 0.35
6/10/2020 0.00
6/11/2020 0.00
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.53
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 0.00
6/18/2020 0.00
6/19/2020 0.79
6/20/2020 0.24
6/21/2020 0.00
6/22/2020 0.09
6/23/2020 0.00
6/24/2020 0.00
6/25/2020 T
6/26/2020 0.00
6/27/2020 0.24
6/28/2020 0.00
6/29/2020 T
6/30/2020 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.09
7/2/2020 0.00
7/3/2020 **
7/4/2020 **
7/5/2020 **
7/6/2020 **
7/7/2020 0.00
7/8/2020 0.00
7/9/2020 0.00
7/10/2020 0.00
7/11/2020 0.00
7/12/2020 0.00
7/13/2020 0.00
7/14/2020 T
7/15/2020 0.01
7/16/2020 0.00
7/17/2020 0.00
7/18/2020 0.00
7/19/2020 0.00
7/20/2020 0.00
7/21/2020 0.00
7/22/2020 0.00
7/23/2020 0.03
7/24/2020 0.00
7/25/2020 0.20
7/26/2020 0.06
7/27/2020 T
7/28/2020 0.00
7/29/2020 0.03
7/30/2020 T
7/31/2020 **
8/1/2020 **
8/2/2020 0.03
8/3/2020 0.00
8/4/2020 T
8/5/2020 T
8/6/2020 0.07
8/7/2020 0.00
8/8/2020 0.00
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 T
8/12/2020 0.00
8/13/2020 0.00
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 0.00
8/18/2020 0.00
8/19/2020 0.00
8/20/2020 T
8/21/2020 0.20
8/22/2020 0.00
8/23/2020 0.00
8/24/2020 0.00
8/25/2020 0.00
8/26/2020 0.00
8/27/2020 T
8/28/2020 0.11
8/29/2020 0.06
8/30/2020 0.05
8/31/2020 0.03
9/1/2020 0.06
9/2/2020 T
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.00
9/7/2020 0.00
9/8/2020 0.25
9/9/2020 0.49
9/10/2020 0.04
9/11/2020
9/12/2020 0.00
9/13/2020 0.00
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.00
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.00
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.00
9/27/2020 0.00
9/28/2020 0.01
9/29/2020 0.00
9/30/2020 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2019 7:00 AM 0.06 M M M M
10/8/2019 7:00 AM 0.00 0.0 M M M
10/24/2019 7:00 AM 0.48 5.1 M 5.1 M
10/25/2019 7:00 AM 0.00 0.0 M M M
10/26/2019 7:00 AM 0.00 0.0 M M M
10/27/2019 7:00 AM T 0.2 M M M
11/11/2019 7:00 AM 0.07 2.4 M M M
11/14/2019 7:00 AM T M M M M
11/25/2019 7:00 AM 0.00 0.0 M M M
12/28/2019 10:00 AM 0.10 2.3 M M M
3/9/2020 7:00 AM 0.22 M M M M
3/10/2020 7:00 AM 0.00 0.0 M M M
3/17/2020 7:00 AM 0.05 M M M M
3/21/2020 7:00 AM 0.00 0.0 M M M
3/28/2020 7:00 AM 0.29 M M M M
3/29/2020 7:00 AM 0.00 0.0 M M M
3/30/2020 7:00 AM 0.00 0.0 M M M
3/31/2020 7:00 AM 0.00 0.0 M M M
4/1/2020 7:00 AM 0.00 0.0 M M M
4/5/2020 7:00 AM 0.00 0.0 M M M
4/6/2020 7:00 AM 0.00 0.0 M M M
4/21/2020 7:00 AM 0.00 0.0 M M M
4/23/2020 7:00 AM 0.01 M M M M
4/27/2020 7:00 AM 0.00 0.0 M M M
4/28/2020 7:00 AM 0.00 0.0 M M M
4/29/2020 7:00 AM 0.00 0.0 M M M
4/30/2020 7:00 AM 0.00 0.0 M M M
5/1/2020 7:00 AM 0.00 0.0 M M M
5/2/2020 7:00 AM T M M M M
5/3/2020 7:00 AM 0.22 M M M M
5/4/2020 7:00 AM 0.05 M M M M
5/9/2020 7:00 AM 0.01 M M M M
5/10/2020 7:00 AM 0.00 0.0 M M M
5/11/2020 7:00 AM 0.00 0.0 M M M
5/12/2020 7:00 AM 0.14 M M M M
5/13/2020 7:00 AM 0.00 0.0 M M M
5/14/2020 7:00 AM 0.00 0.0 M M M
5/15/2020 7:00 AM 0.59 M M M M Some small pea size hail
5/16/2020 7:00 AM 0.11 M M M M
5/17/2020 7:00 AM 0.00 0.0 M M M
5/18/2020 7:00 AM 0.00 0.0 M M M
5/19/2020 7:00 AM 0.00 0.0 M M M
5/20/2020 7:00 AM 0.00 0.0 M M M
5/21/2020 7:00 AM 0.00 0.0 M M M
5/22/2020 7:00 AM 0.00 0.0 M M M
5/23/2020 7:00 AM 0.00 0.0 M M M
5/24/2020 7:00 AM 0.00 0.0 M M M
5/25/2020 7:00 AM 0.95 M M M M
5/26/2020 7:00 AM 0.00 0.0 M M M
5/27/2020 7:00 AM 0.00 0.0 M M M
5/28/2020 7:00 AM 0.07 M M M M
5/29/2020 7:00 AM T M M M M
5/30/2020 7:00 AM T 0.0 M M M
5/31/2020 7:00 AM 0.08 M M M M
6/1/2020 7:00 AM T M M M M
6/2/2020 7:00 AM 0.00 0.0 M M M
6/3/2020 7:00 AM T M M M M
6/4/2020 7:00 AM 0.00 0.0 M M M
6/5/2020 7:00 AM T M M M M
6/6/2020 7:00 AM T M M M M
6/7/2020 7:00 AM 0.05 M M M M
6/8/2020 7:00 AM T M M M M
6/9/2020 7:00 AM 0.35 M M M M
6/10/2020 7:00 AM 0.00 0.0 M M M
6/11/2020 7:00 AM 0.00 0.0 M M M
6/12/2020 7:00 AM 0.00 0.0 M M M
6/13/2020 7:00 AM 0.00 0.0 M M M
6/14/2020 7:00 AM 0.53 M M M M
6/15/2020 7:00 AM 0.00 0.0 M M M
6/16/2020 7:00 AM 0.00 0.0 M M M
6/17/2020 7:00 AM 0.00 0.0 M M M
6/18/2020 7:00 AM 0.00 0.0 M M M
6/19/2020 7:00 AM 0.79 M M M M
6/20/2020 7:00 AM 0.24 M M M M
6/21/2020 7:00 AM 0.00 0.0 M M M
6/22/2020 7:00 AM 0.09 M M M M
6/23/2020 7:00 AM 0.00 0.0 M M M
6/24/2020 7:00 AM 0.00 0.0 M M M
6/25/2020 7:00 AM T M M M M
6/26/2020 7:00 AM 0.00 0.0 M M M
6/27/2020 7:00 AM 0.24 M M M M
6/28/2020 7:00 AM 0.00 0.0 M M M
6/29/2020 7:00 AM T 0.0 M M M
6/30/2020 7:00 AM 0.00 0.0 M M M
7/1/2020 7:00 AM 0.09 M M M M
7/2/2020 7:00 AM 0.00 0.0 M M M
7/8/2020 7:00 AM 0.00 0.0 M M M
7/9/2020 7:00 AM 0.00 0.0 M M M
7/10/2020 7:00 AM 0.00 0.0 M M M
7/11/2020 7:00 AM 0.00 0.0 M M M
7/12/2020 7:00 AM 0.00 0.0 M M M
7/13/2020 7:00 AM 0.00 0.0 M M M
7/14/2020 7:00 AM T M M M M
7/15/2020 7:00 AM 0.01 M M M M
7/16/2020 7:00 AM 0.00 0.0 M M M
7/17/2020 7:00 AM 0.00 0.0 M M M
7/18/2020 7:00 AM 0.00 0.0 M M M
7/19/2020 7:00 AM 0.00 0.0 M M M
7/20/2020 7:00 AM 0.00 0.0 M M M
7/21/2020 7:00 AM 0.00 0.0 M M M
7/22/2020 7:00 AM 0.00 0.0 M M M
7/23/2020 7:00 AM 0.03 M M M M
7/24/2020 7:00 AM 0.00 0.0 M M M
7/25/2020 7:00 AM 0.20 M M M M
7/26/2020 7:00 AM 0.06 M M M M
7/27/2020 7:00 AM T M M M M
7/28/2020 7:00 AM 0.00 0.0 M M M
7/29/2020 7:00 AM 0.03 M M M M
7/30/2020 7:00 AM T M M M M
8/3/2020 7:00 AM 0.00 0.0 M M M
8/4/2020 7:00 AM T M M M M
8/5/2020 7:00 AM T M M M M
8/6/2020 7:00 AM 0.07 M M M M
8/7/2020 7:00 AM 0.00 0.0 M M M
8/8/2020 7:00 AM 0.00 0.0 M M M
8/9/2020 7:00 AM 0.00 0.0 M M M
8/10/2020 7:00 AM 0.00 0.0 M M M
8/11/2020 7:00 AM T M M M M
8/12/2020 7:00 AM 0.00 0.0 M M M
8/13/2020 7:00 AM 0.00 0.0 M M M
8/14/2020 7:00 AM 0.00 0.0 M M M
8/15/2020 7:00 AM 0.00 0.0 M M M
8/16/2020 7:00 AM 0.00 0.0 M M M
8/17/2020 7:00 AM 0.00 0.0 M M M
8/18/2020 7:00 AM 0.00 0.0 M M M
8/19/2020 7:00 AM 0.00 0.0 M M M
8/20/2020 7:00 AM T M M M M
8/21/2020 7:00 AM 0.20 M M M M
8/22/2020 7:00 AM 0.00 0.0 M M M
8/23/2020 7:00 AM 0.00 0.0 M M M
8/24/2020 7:00 AM 0.00 0.0 M M M
8/25/2020 7:00 AM 0.00 0.0 M M M
8/26/2020 7:00 AM 0.00 0.0 M M M
8/27/2020 7:00 AM T M M M M
8/28/2020 7:00 AM 0.11 M M M M
8/29/2020 7:00 AM 0.06 M M M M
8/30/2020 7:00 AM 0.05 M M M M
8/31/2020 7:00 AM 0.03 M M M M
9/1/2020 7:00 AM 0.06 M M M M
9/2/2020 7:00 AM T M M M M
9/3/2020 7:00 AM 0.00 0.0 M M M
9/4/2020 7:00 AM 0.00 0.0 M M M
9/5/2020 7:00 AM 0.00 0.0 M M M
9/6/2020 7:00 AM 0.00 0.0 M M M
9/7/2020 7:00 AM 0.00 0.0 M M M
9/8/2020 7:00 AM 0.25 M M M M
9/9/2020 7:00 AM 0.49 2.5 0.49 M M melted snow in open gauge rain mixed with snow initially and snow melted at first
9/10/2020 7:00 AM 0.04 M M M M
9/12/2020 7:00 AM 0.00 0.0 M M M
9/13/2020 7:00 AM 0.00 0.0 M M M
9/14/2020 7:00 AM 0.00 0.0 M M M
9/15/2020 7:00 AM 0.00 0.0 M M M
9/16/2020 7:00 AM 0.00 0.0 M M M
9/17/2020 7:00 AM 0.00 0.0 M M M
9/18/2020 7:00 AM 0.00 0.0 M M M
9/19/2020 7:00 AM 0.00 0.0 M M M
9/20/2020 7:00 AM 0.00 0.0 M M M
9/21/2020 7:00 AM 0.00 0.0 M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.00 0.0 M M M
9/24/2020 7:00 AM 0.00 0.0 M M M
9/25/2020 7:00 AM 0.00 0.0 M M M
9/26/2020 7:00 AM 0.00 0.0 M M M
9/27/2020 7:00 AM 0.00 0.0 M M M
9/28/2020 7:00 AM 0.01 M M M M
9/29/2020 7:00 AM 0.00 0.0 M M M
9/30/2020 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
10/28/2019 10/30/2019 7:00 AM 3 0.48 6.3 M It was snowing hard at 7 am on 10/29/2019 so I didn't make a separate measurement.
11/1/2019 11/09/2019 7:00 AM 9 T M M
11/12/2019 11/13/2019 7:00 AM 2 0.00 M M
11/15/2019 11/16/2019 7:00 AM 2 0.00 M M
12/29/2019 1/21/2020 7:00 AM 24 0.00 M M
1/22/2020 1/24/2020 7:00 AM 3 0.00 M M
1/25/2020 1/29/2020 7:00 AM 5 0.00 M M
3/18/2020 3/20/2020 2:00 PM 3 1.07 M M Rain started the evening of the 18th and then turned to snow. Snow continued until mid day 20th.
7/3/2020 7/07/2020 7:00 AM 5 0.00 M M
7/31/2020 8/02/2020 7:00 AM 3 0.03 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