Station Overview Station Location
Station Number CO-BO-494 Latitude 40.0011
Station Name Boulder 2.5 SW Longitude -105.28342
County Boulder Elevation (ft) 5643



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 1.48 0.38 5 0.38 5 0.00 0 0 3 0 10.5 1 1
Nov 18 1.29 0.00 4 0.00 4 0.00 0 0 0 0 11.0 1 0
Dec 18 0.93 0.00 1 0.00 1 0.00 0 0 0 0 0.0 0 0
Jan 19 0.72 0.46 6 0.46 6 0.00 0 0 2 0 4.1 1 0
Feb 19 0.81 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 19 2.01 0.22 1 0.22 1 0.00 0 0 1 0 5.0 1 1
April 19 2.66 1.37 12 1.37 12 0.00 0 0 3 0 8.1 3 1
May 19 2.95 4.57 19 4.57 19 0.00 0 0 12 0 7.0 2 1
June 19 2.36 2.37 13 2.37 13 0.00 0 0 7 0 0.0 0 0
July 19 1.76 1.02 13 1.02 13 0.00 0 0 4 0 0.0 0 0
Aug 19 1.93 0.08 13 0.08 13 0.00 0 0 1 0 0.0 0 0
Sept 19 1.64 1.16 16 1.16 16 0.00 0 0 5 0 0.0 0 0
Water Year Totals: 20.54" 11.63" 103 days 11.63" 103 0.00" 0 days 0 38 days 0 days 45.7" 9 days 4 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 0.02
10/5/2018 0.04
10/6/2018
10/7/2018
10/8/2018
10/9/2018
10/10/2018
10/11/2018
10/12/2018
10/13/2018
10/14/2018 M
10/15/2018
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018 0.00
10/24/2018
10/25/2018
10/26/2018
10/27/2018
10/28/2018
10/29/2018 0.00
10/30/2018
10/31/2018 0.32
11/1/2018 0.00
11/2/2018
11/3/2018
11/4/2018
11/5/2018
11/6/2018 0.00
11/7/2018
11/8/2018
11/9/2018
11/10/2018 M
11/11/2018
11/12/2018
11/13/2018
11/14/2018 0.00
11/15/2018
11/16/2018
11/17/2018
11/18/2018
11/19/2018
11/20/2018 0.00
11/21/2018
11/22/2018
11/23/2018
11/24/2018
11/25/2018
11/26/2018
11/27/2018
11/28/2018
11/29/2018
11/30/2018
12/1/2018
12/2/2018
12/3/2018
12/4/2018
12/5/2018
12/6/2018
12/7/2018
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
12/25/2018
12/26/2018
12/27/2018
12/28/2018
12/29/2018
12/30/2018 0.00
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.21
1/2/2019 0.00
1/3/2019 0.00
1/4/2019
1/5/2019
1/6/2019 0.00
1/7/2019 0.00
1/8/2019
1/9/2019
1/10/2019
1/11/2019
1/12/2019
1/13/2019
1/14/2019
1/15/2019
1/16/2019
1/17/2019
1/18/2019
1/19/2019 0.25
1/20/2019
1/21/2019
1/22/2019
1/23/2019
1/24/2019
1/25/2019
1/26/2019
1/27/2019
1/28/2019
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
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
2/19/2019
2/20/2019
2/21/2019
2/22/2019
2/23/2019
2/24/2019
2/25/2019
2/26/2019
2/27/2019
2/28/2019
3/1/2019
3/2/2019
3/3/2019
3/4/2019
3/5/2019
3/6/2019
3/7/2019
3/8/2019
3/9/2019
3/10/2019
3/11/2019
3/12/2019
3/13/2019
3/14/2019
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 0.22
3/30/2019 M
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019 0.00
4/3/2019
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019 0.00
4/9/2019 0.00
4/10/2019 0.00
4/11/2019 0.88
4/12/2019 0.00
4/13/2019 0.10
4/14/2019
4/15/2019 0.00
4/16/2019
4/17/2019 0.00
4/18/2019 0.00
4/19/2019
4/20/2019
4/21/2019
4/22/2019
4/23/2019
4/24/2019
4/25/2019
4/26/2019 0.00
4/27/2019
4/28/2019
4/29/2019
4/30/2019 0.39
5/1/2019 0.09
5/2/2019 0.14
5/3/2019 0.00
5/4/2019
5/5/2019 0.00
5/6/2019 0.00
5/7/2019 0.11
5/8/2019 0.34
5/9/2019 1.22
5/10/2019
5/11/2019 0.05
5/12/2019
5/13/2019
5/14/2019 0.00
5/15/2019 0.00
5/16/2019 0.00
5/17/2019
5/18/2019 0.23
5/19/2019 0.00
5/20/2019 0.28
5/21/2019 1.13
5/22/2019
5/23/2019 0.34
5/24/2019
5/25/2019
5/26/2019
5/27/2019
5/28/2019 0.36
5/29/2019 0.28
5/30/2019
5/31/2019
6/1/2019
6/2/2019 0.00
6/3/2019
6/4/2019 0.24
6/5/2019 0.07
6/6/2019
6/7/2019
6/8/2019 0.16
6/9/2019 0.12
6/10/2019 0.00
6/11/2019
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019 0.00
6/17/2019
6/18/2019 0.81
6/19/2019 0.00
6/20/2019 0.00
6/21/2019 0.04
6/22/2019 0.93
6/23/2019
6/24/2019
6/25/2019
6/26/2019
6/27/2019 0.00
6/28/2019
6/29/2019
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019
7/2/2019
7/3/2019
7/4/2019
7/5/2019
7/6/2019
7/7/2019
7/8/2019
7/9/2019 0.00
7/10/2019 0.00
7/11/2019 0.00
7/12/2019 0.00
7/13/2019
7/14/2019 0.05
7/15/2019
7/16/2019 0.23
7/17/2019 0.00
7/18/2019
7/19/2019
7/20/2019
7/21/2019 0.50
7/22/2019
7/23/2019
7/24/2019
7/25/2019
7/26/2019
7/27/2019 0.00
7/28/2019 0.00
7/29/2019 0.00
7/30/2019 0.00
7/31/2019 0.24
8/1/2019 0.00
8/2/2019 0.08
8/3/2019 0.00
8/4/2019
8/5/2019 0.00
8/6/2019
8/7/2019 0.00
8/8/2019 0.00
8/9/2019
8/10/2019 0.00
8/11/2019
8/12/2019 0.00
8/13/2019
8/14/2019
8/15/2019 0.00
8/16/2019 0.00
8/17/2019 0.00
8/18/2019
8/19/2019
8/20/2019
8/21/2019
8/22/2019
8/23/2019
8/24/2019
8/25/2019
8/26/2019
8/27/2019
8/28/2019
8/29/2019
8/30/2019 0.00
8/31/2019 0.00
9/1/2019
9/2/2019 0.00
9/3/2019 0.00
9/4/2019
9/5/2019 0.00
9/6/2019 0.00
9/7/2019 0.11
9/8/2019 0.00
9/9/2019 0.27
9/10/2019 0.00
9/11/2019 0.38
9/12/2019 0.20
9/13/2019 0.00
9/14/2019 0.00
9/15/2019 0.00
9/16/2019
9/17/2019
9/18/2019 0.00
9/19/2019
9/20/2019 0.00
9/21/2019
9/22/2019
9/23/2019
9/24/2019
9/25/2019
9/26/2019
9/27/2019
9/28/2019 0.20
9/29/2019
9/30/2019



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2018 9:00 AM 0.02 M M M M
10/5/2018 9:00 AM 0.04 M M M M
10/14/2018 9:00 AM M 10.5 M 10.5 M had gauge prepared to measure rain so snow didnt go in it. 10.5 inches snow and still snowing measured with ruler
10/23/2018 9:00 AM 0.00 0.0 M M M
10/29/2018 9:00 AM 0.00 0.0 M M M
10/31/2018 9:00 AM 0.32 M M M M
11/1/2018 9:00 AM 0.00 0.0 M M M
11/6/2018 9:00 AM 0.00 0.0 M M M
11/10/2018 9:00 AM M 11.0 M M M
11/14/2018 9:00 AM 0.00 0.0 M M M
11/20/2018 9:00 AM 0.00 0.0 M M M
12/30/2018 9:00 AM 0.00 0.0 M M M
1/1/2019 9:00 AM 0.21 4.1 M M M
1/2/2019 9:00 AM 0.00 0.0 M M M
1/3/2019 9:00 AM 0.00 0.0 M M M
1/6/2019 9:00 AM 0.00 0.0 M M M
1/7/2019 9:00 AM 0.00 0.0 M M M
1/19/2019 9:00 AM 0.25 M M M M
3/29/2019 9:00 AM 0.22 M M M M
3/30/2019 9:00 AM M 5.0 M 5.0 M 0.20 fell as rain. The inner cylinder was in, so a melted snow was not measured.
4/2/2019 9:00 AM 0.00 0.0 M M M
4/8/2019 9:00 AM 0.00 0.0 M M M
4/9/2019 9:00 AM 0.00 0.0 M M M
4/10/2019 9:00 AM 0.00 0.0 M M M rain just starting at 9 am
4/11/2019 9:00 AM 0.88 4.9 M 4.9 M rain started 9 am April 10...turned to snow at bit after noon. Continued until some time after 10 p.m. Waiting for it to melt to record. Precipitation gauge was frozen in place so couldnt bring inside to melt snow until now 11 am
4/12/2019 9:00 AM 0.00 0.0 M M M
4/13/2019 9:00 AM 0.10 0.4 M M M
4/15/2019 9:00 AM 0.00 0.0 M M M
4/17/2019 9:00 AM 0.00 0.0 M M M
4/18/2019 9:00 AM 0.00 0.0 M M M
4/26/2019 9:00 AM 0.00 0.0 M M M
4/30/2019 9:00 AM 0.39 2.8 M M M
5/1/2019 9:00 AM 0.09 M M M M
5/2/2019 9:00 AM 0.14 M M M M
5/3/2019 9:00 AM 0.00 0.0 M M M
5/5/2019 9:00 AM 0.00 0.0 M M M
5/6/2019 9:00 AM 0.00 0.0 M M M
5/7/2019 9:00 AM 0.11 M M M M
5/8/2019 9:00 AM 0.34 M M M M
5/9/2019 9:00 AM 1.22 3.0 M M M rain until 10 pm turned to snow. measured .55 inch of rain at 9 am and then .67 inch melted snow
5/11/2019 9:00 AM 0.05 M M M M
5/14/2019 9:00 AM 0.00 0.0 M M M
5/15/2019 9:00 AM 0.00 0.0 M M M
5/16/2019 9:00 AM 0.00 0.0 M M M
5/18/2019 9:00 AM 0.23 M M M M Pea size hail fell from about 1:45 - 2:00 pm on May 17
5/19/2019 9:00 AM 0.00 0.0 M M M
5/20/2019 9:00 AM 0.28 M M M M rain, rain,rain
5/21/2019 9:00 AM 1.13 4.0 M 4.0 M rain all day .30 inch , turned to snow at around 8 pm .83 inch water in melted snow
5/23/2019 9:00 AM 0.34 M M M M
5/28/2019 9:00 AM 0.36 M M M M Lightening, thunder and rain 3:15 am to 4:20 am
5/29/2019 9:00 AM 0.28 M M M M
6/2/2019 9:00 AM 0.00 0.0 M M M
6/4/2019 9:00 AM 0.24 M M M M
6/5/2019 9:00 AM 0.07 M M M M
6/8/2019 9:00 AM 0.16 M M M M
6/9/2019 9:00 AM 0.12 M M M M 2 minutes of very scattered pea size hail around 5 pm
6/10/2019 9:00 AM 0.00 0.0 M M M
6/16/2019 9:00 AM 0.00 0.0 M M M
6/18/2019 9:00 AM 0.81 M M M M
6/19/2019 9:00 AM 0.00 0.0 M M M
6/20/2019 9:00 AM 0.00 0.0 M M M
6/21/2019 9:00 AM 0.04 M M M M
6/22/2019 9:00 AM 0.93 M M M M
6/27/2019 9:00 AM 0.00 0.0 M M M
7/9/2019 9:00 AM 0.00 0.0 M M M
7/10/2019 9:00 AM 0.00 0.0 M M M
7/11/2019 9:00 AM 0.00 0.0 M M M
7/12/2019 9:00 AM 0.00 0.0 M M M
7/14/2019 9:00 AM 0.05 M M M M
7/16/2019 9:00 AM 0.23 M M M M
7/17/2019 9:00 AM 0.00 0.0 M M M
7/21/2019 9:00 AM 0.50 M M M M
7/27/2019 9:00 AM 0.00 0.0 M M M
7/28/2019 9:00 AM 0.00 0.0 M M M
7/29/2019 9:00 AM 0.00 0.0 M M M
7/30/2019 9:00 AM 0.00 0.0 M M M
7/31/2019 9:00 AM 0.24 M M M M
8/1/2019 9:00 AM 0.00 0.0 M M M
8/2/2019 9:00 AM 0.08 M M M M
8/3/2019 9:00 AM 0.00 0.0 M M M
8/5/2019 9:00 AM 0.00 0.0 M M M
8/7/2019 9:00 AM 0.00 0.0 M M M
8/8/2019 9:00 AM 0.00 0.0 M M M
8/10/2019 9:00 AM 0.00 0.0 M M M
8/12/2019 9:00 AM 0.00 0.0 M M M
8/15/2019 9:00 AM 0.00 0.0 M M M
8/16/2019 9:00 AM 0.00 0.0 M M M
8/17/2019 9:00 AM 0.00 0.0 M M M
8/30/2019 9:00 AM 0.00 0.0 M M M
8/31/2019 9:00 AM 0.00 0.0 M M M
9/2/2019 9:00 AM 0.00 0.0 M M M
9/3/2019 9:00 AM 0.00 0.0 M M M
9/5/2019 9:00 AM 0.00 0.0 M M M
9/6/2019 9:00 AM 0.00 0.0 M M M
9/7/2019 9:00 AM 0.11 M M M M
9/8/2019 9:00 AM 0.00 0.0 M M M
9/9/2019 9:00 AM 0.27 M M M M
9/10/2019 9:00 AM 0.00 0.0 M M M
9/11/2019 9:00 AM 0.38 M M M M
9/12/2019 9:00 AM 0.20 M M M M
9/13/2019 9:00 AM 0.00 0.0 M M M
9/14/2019 9:00 AM 0.00 0.0 M M M
9/15/2019 9:00 AM 0.00 0.0 M M M
9/18/2019 9:00 AM 0.00 0.0 M M M
9/20/2019 9:00 AM 0.00 0.0 M M M
9/28/2019 9:00 AM 0.20 M 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