Station Overview Station Location
Station Number CO-JF-267 Latitude 39.77385
Station Name Golden 9.4 WNW Longitude -105.38644
County Jefferson Elevation (ft) 8730



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 14 1.43 0.98 28 0.98 28 0.00 0 0 3 1 0.6 2 0
Nov 14 1.05 0.37 28 0.37 28 0.00 0 0 5 3 9.2 6 10
Dec 14 0.82 0.84 30 0.84 30 0.00 0 0 7 2 12.0 7 16
Jan 15 0.60 0.29 30 0.29 30 0.00 0 0 7 3 7.4 6 14
Feb 15 0.70 1.48 32 1.48 22 0.00 10 0 9 0 19.4 8 14
March 15 1.99 0.00 62 0.00 0 0.00 62 0 0 0 0.0 0 0
April 15 2.61 11.43 31 2.63 26 8.80 5 2 8 5 30.7 6 9
May 15 2.39 4.72 32 4.13 23 0.59 9 1 13 4 2.4 3 3
June 15 2.23 1.87 30 1.87 24 0.00 6 0 14 1 0.7 1 0
July 15 2.38 3.07 30 2.93 29 0.14 1 1 19 2 0.0 0 0
Aug 15 2.71 0.69 31 0.69 31 0.00 0 0 13 3 0.0 0 0
Sept 15 1.64 0.77 26 0.30 15 0.47 11 1 1 1 0.0 0 0
Water Year Totals: 20.55" 26.51" 390 days 16.51" 286 10.00" 104 days 5 99 days 25 days 82.4" 39 days 66 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
10/1/2014 0.00
10/2/2014 0.14
10/3/2014 0.00
10/4/2014 0.00
10/5/2014 0.00
10/6/2014 0.00
10/7/2014 0.00
10/8/2014 0.00
10/9/2014 0.00
10/10/2014 0.79
10/11/2014 0.00
10/12/2014 0.00
10/13/2014 0.05
10/14/2014 0.00
10/15/2014 0.00
10/16/2014 0.00
10/17/2014 0.00
10/18/2014 0.00
10/19/2014 0.00
10/20/2014 0.00
10/21/2014 0.00
10/22/2014 T
10/23/2014 0.00
10/24/2014 0.00
10/25/2014 0.00
10/26/2014 0.00
10/27/2014 0.00
10/28/2014 0.00
10/29/2014
10/30/2014
10/31/2014
11/1/2014 0.00
11/2/2014 0.00
11/3/2014 0.12
11/4/2014 0.00
11/5/2014 0.00
11/6/2014 0.00
11/7/2014 0.00
11/8/2014 0.00
11/9/2014 0.00
11/10/2014 0.00
11/11/2014 0.11
11/12/2014 0.11
11/13/2014 0.00
11/14/2014 T
11/15/2014 T
11/16/2014 M
11/17/2014 0.00
11/18/2014 0.00
11/19/2014 0.00
11/20/2014 0.00
11/21/2014 0.00
11/22/2014 0.00
11/23/2014 0.00
11/24/2014 T
11/25/2014 0.01
11/26/2014 0.02
11/27/2014
11/28/2014 0.00
11/29/2014 0.00
11/30/2014 0.00
12/1/2014 0.00
12/2/2014 0.00
12/3/2014 0.00
12/4/2014 0.00
12/5/2014 0.00
12/6/2014 0.00
12/7/2014 0.00
12/8/2014 0.00
12/9/2014 0.00
12/10/2014 0.00
12/11/2014 0.00
12/12/2014 0.00
12/13/2014 0.00
12/14/2014 0.11
12/15/2014 0.19
12/16/2014 0.00
12/17/2014 0.00
12/18/2014 T
12/19/2014 0.00
12/20/2014 0.00
12/21/2014
12/22/2014 0.13
12/23/2014 0.11
12/24/2014 0.00
12/25/2014 0.00
12/26/2014 0.12
12/27/2014 0.00
12/28/2014 0.00
12/29/2014 0.10
12/30/2014 0.08
12/31/2014 T
Day of YearDaily PrcpMultiday Prcp
1/1/2015 0.00
1/2/2015 0.00
1/3/2015 0.00
1/4/2015 T
1/5/2015 0.00
1/6/2015 0.00
1/7/2015 T
1/8/2015 0.00
1/9/2015 0.00
1/10/2015 0.00
1/11/2015 0.00
1/12/2015 0.03
1/13/2015 0.00
1/14/2015 0.02
1/15/2015 0.00
1/16/2015 0.00
1/17/2015 0.03
1/18/2015 0.00
1/19/2015 0.00
1/20/2015 0.01
1/21/2015 0.01
1/22/2015 0.17
1/23/2015 0.00
1/24/2015
1/25/2015 0.00
1/26/2015 0.00
1/27/2015 0.00
1/28/2015 T
1/29/2015 0.00
1/30/2015 0.00
1/31/2015 0.02
2/1/2015 0.07
2/2/2015 0.00
2/3/2015
2/4/2015 0.08
2/5/2015 0.12
2/6/2015 0.00
2/7/2015 0.00
2/8/2015 0.00
2/9/2015 0.00
2/10/2015 0.00
2/11/2015 0.20
2/12/2015 0.00
2/13/2015 0.00
2/14/2015 0.00
2/15/2015 0.00
2/16/2015 0.51
2/17/2015 0.19
2/18/2015 0.02
2/19/2015 0.00
2/20/2015 0.00
2/21/2015 0.03
2/22/2015 0.26
2/23/2015 **
2/24/2015 0.00 **
2/25/2015 **
2/26/2015 **
2/27/2015 **
2/28/2015 **
3/1/2015 **
3/2/2015 **
3/3/2015 **
3/4/2015 **
3/5/2015 **
3/6/2015 **
3/7/2015 **
3/8/2015 **
3/9/2015 **
3/10/2015 **
3/11/2015 **
3/12/2015 **
3/13/2015 **
3/14/2015 **
3/15/2015 **
3/16/2015 **
3/17/2015 **
3/18/2015 **
3/19/2015 **
3/20/2015 **
3/21/2015 **
3/22/2015 **
3/23/2015 **
3/24/2015 **
3/25/2015 **
3/26/2015 **
3/27/2015 **
3/28/2015 **
3/29/2015 **
3/30/2015 **
3/31/2015 **
Day of YearDaily PrcpMultiday Prcp
4/1/2015 **
4/2/2015 4.50
4/3/2015 4.30
4/4/2015 0.00
4/5/2015 0.00
4/6/2015 0.00
4/7/2015 0.00
4/8/2015 0.00
4/9/2015 T
4/10/2015 0.00
4/11/2015 T
4/12/2015 0.00
4/13/2015 T
4/14/2015 0.00
4/15/2015 0.00
4/16/2015 0.08
4/17/2015 1.31
4/18/2015 M
4/19/2015 0.38
4/20/2015 0.06
4/21/2015 T
4/22/2015 0.00
4/23/2015 0.03
4/24/2015 0.00
4/25/2015 T
4/26/2015 0.09
4/27/2015 0.60
4/28/2015 0.08
4/29/2015 0.00
4/30/2015 0.00
5/1/2015 T
5/2/2015 T
5/3/2015 0.00
5/4/2015 0.62
5/5/2015 0.45
5/6/2015 0.23
5/7/2015 0.10
5/8/2015 0.38
5/9/2015 0.80
5/10/2015 0.34
5/11/2015 0.01
5/12/2015 0.00
5/13/2015 0.00
5/14/2015 0.04
5/15/2015 T
5/16/2015 0.14
5/17/2015 T
5/18/2015 0.14
5/19/2015 0.81 **
5/20/2015 **
5/21/2015 **
5/22/2015 **
5/23/2015 **
5/24/2015 **
5/25/2015 **
5/26/2015 **
5/27/2015 0.59
5/28/2015 0.00
5/29/2015 0.00
5/30/2015 0.07
5/31/2015 0.00
6/1/2015 0.01
6/2/2015 0.00
6/3/2015 0.00
6/4/2015 0.01
6/5/2015 0.02
6/6/2015 0.44
6/7/2015 0.16
6/8/2015 0.07
6/9/2015 0.00
6/10/2015 0.03
6/11/2015 0.05
6/12/2015 0.81
6/13/2015 0.05
6/14/2015 0.13
6/15/2015 0.00
6/16/2015 0.07
6/17/2015 0.01
6/18/2015 0.00
6/19/2015 0.01
6/20/2015 0.00
6/21/2015 0.00
6/22/2015 0.00
6/23/2015 0.00
6/24/2015 T
6/25/2015 **
6/26/2015 **
6/27/2015 **
6/28/2015 **
6/29/2015 **
6/30/2015 **
Day of YearDaily PrcpMultiday Prcp
7/1/2015 0.14
7/2/2015 0.25
7/3/2015 0.02
7/4/2015 0.03
7/5/2015 0.07
7/6/2015 0.45
7/7/2015 0.36
7/8/2015 0.27
7/9/2015 0.58
7/10/2015 0.15
7/11/2015 0.04
7/12/2015 T
7/13/2015 0.00
7/14/2015 0.22
7/15/2015 0.01
7/16/2015 0.05
7/17/2015
7/18/2015 0.00
7/19/2015 0.14
7/20/2015 0.04
7/21/2015 0.10
7/22/2015 0.05
7/23/2015 T
7/24/2015 0.00
7/25/2015 0.09
7/26/2015 0.00
7/27/2015 0.01
7/28/2015 0.00
7/29/2015 0.00
7/30/2015 0.00
7/31/2015 0.00
8/1/2015 0.00
8/2/2015 T
8/3/2015 T
8/4/2015 0.00
8/5/2015 0.00
8/6/2015 0.00
8/7/2015 0.00
8/8/2015 0.00
8/9/2015 T
8/10/2015 0.01
8/11/2015 0.01
8/12/2015 0.00
8/13/2015 0.02
8/14/2015 0.02
8/15/2015 0.01
8/16/2015 0.39
8/17/2015 0.08
8/18/2015 0.03
8/19/2015 0.05
8/20/2015 0.00
8/21/2015 0.00
8/22/2015 0.00
8/23/2015 0.04
8/24/2015 0.00
8/25/2015 0.00
8/26/2015 0.00
8/27/2015 0.01
8/28/2015 0.00
8/29/2015 0.01
8/30/2015 0.00
8/31/2015 0.01
9/1/2015 0.30
9/2/2015
9/3/2015
9/4/2015
9/5/2015
9/6/2015
9/7/2015 **
9/8/2015 0.47
9/9/2015 0.00
9/10/2015 0.00
9/11/2015 0.00
9/12/2015 0.00
9/13/2015 0.00
9/14/2015 0.00
9/15/2015 0.00
9/16/2015 0.00
9/17/2015 0.00
9/18/2015 T
9/19/2015 0.00
9/20/2015 0.00
9/21/2015 0.00
9/22/2015 0.00 **
9/23/2015 **
9/24/2015 **
9/25/2015 **
9/26/2015 **
9/27/2015 **
9/28/2015 **
9/29/2015 **
9/30/2015 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2014 7:00 AM 0.00 0.0 M M M
10/2/2014 7:00 AM 0.14 0.3 M M M Most fell as rain during a thunderstorm around 2 PM on Oct. 1. A thin crust of icy snow formed/fell during the night. Not a measurable thickness.
10/3/2014 7:00 AM 0.00 0.0 M M M
10/4/2014 7:00 AM 0.00 0.0 M M M
10/5/2014 7:00 AM 0.00 0.0 M M M
10/6/2014 7:00 AM 0.00 0.0 M M M
10/7/2014 7:00 AM 0.00 0.0 M M M
10/8/2014 7:00 AM 0.00 0.0 M M M
10/9/2014 7:00 AM 0.00 0.0 M M M
10/10/2014 7:00 AM 0.79 0.0 M 0.0 M
10/11/2014 7:00 AM 0.00 0.0 M M M
10/12/2014 7:00 AM 0.00 0.0 M M M
10/13/2014 7:00 AM 0.05 0.3 M M M
10/14/2014 7:00 AM 0.00 0.0 M M M
10/15/2014 7:00 AM 0.00 0.0 M M M
10/16/2014 7:00 AM 0.00 0.0 M M M
10/17/2014 7:00 AM 0.00 0.0 M M M
10/18/2014 7:00 AM 0.00 0.0 M M M
10/19/2014 7:00 AM 0.00 0.0 M M M
10/20/2014 7:00 AM 0.00 0.0 M M M
10/21/2014 9:00 AM 0.00 0.0 M M M
10/22/2014 9:20 AM T M M M M
10/23/2014 11:50 AM 0.00 0.0 M M M
10/24/2014 7:00 AM 0.00 0.0 M M M
10/25/2014 7:00 AM 0.00 0.0 M M M
10/26/2014 7:00 AM 0.00 0.0 M M M
10/27/2014 7:00 AM 0.00 0.0 M M M
10/28/2014 7:00 AM 0.00 0.0 M M M
11/1/2014 7:00 AM 0.00 0.0 M M M
11/2/2014 7:00 AM 0.00 0.0 M M M
11/3/2014 7:00 AM 0.12 0.8 0.12 0.8 0.80
11/4/2014 7:00 AM 0.00 0.0 M M M
11/5/2014 7:00 AM 0.00 0.0 M M M
11/6/2014 7:00 AM 0.00 0.0 M M M
11/7/2014 7:00 AM 0.00 0.0 M M M
11/8/2014 7:00 AM 0.00 0.0 M M M
11/9/2014 7:00 AM 0.00 0.0 M M M
11/10/2014 7:00 AM 0.00 0.0 M M M
11/11/2014 8:00 AM 0.11 2.5 0.11 2.5 0.11 Temp F 10 degrees
11/12/2014 7:15 AM 0.11 2.5 M 5.0 M
11/13/2014 7:00 AM 0.00 0.0 M M M
11/14/2014 8:00 AM T T T 4.0 0.04
11/15/2014 7:00 AM T T M 2.5 M
11/16/2014 8:00 AM M 3.0 M 4.0 M Edit: Initial obs 2.50" changed to NA ad snowfall amount entered as liquid precip. Observer will be contacted
11/17/2014 7:00 AM 0.00 0.0 M 3.0 0.41
11/18/2014 7:00 AM 0.00 0.0 M M M
11/19/2014 7:00 AM 0.00 0.0 M M M
11/20/2014 7:00 AM 0.00 0.0 M 1.5 M
11/21/2014 7:00 AM 0.00 0.0 M 0.0 M
11/22/2014 7:00 AM 0.00 0.0 M M M
11/23/2014 7:00 AM 0.00 0.0 M M M
11/24/2014 7:00 AM T T M T M
11/25/2014 7:00 AM 0.01 0.2 0.01 0.2 0.01
11/26/2014 7:00 AM 0.02 0.2 0.02 0.2 0.02 It's been blowing hard. It is impossible to distinguish old snow from new snow. But the rain gauge value is real.
11/28/2014 7:00 AM 0.00 0.0 M 0.0 M
11/29/2014 7:00 AM 0.00 0.0 M 0.0 M
11/30/2014 7:00 AM 0.00 0.0 M M M
12/1/2014 7:00 AM 0.00 0.0 M 0.0 M Heavy frost at 7AM
12/2/2014 7:00 AM 0.00 0.0 M 0.0 M
12/3/2014 7:00 AM 0.00 0.0 M 0.0 M
12/4/2014 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/5/2014 7:00 AM 0.00 0.0 M M M
12/6/2014 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/7/2014 7:00 AM 0.00 0.0 M M M
12/8/2014 7:00 AM 0.00 0.0 M M M
12/9/2014 7:00 AM 0.00 0.0 M 0.0 0.00
12/10/2014 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/11/2014 7:00 AM 0.00 0.0 M M M
12/12/2014 7:00 AM 0.00 0.0 M M M
12/13/2014 7:00 AM 0.00 0.0 M M M
12/14/2014 8:20 AM 0.11 1.5 0.11 1.5 0.11
12/15/2014 9:45 AM 0.19 1.5 0.22 2.5 0.27
12/16/2014 7:00 AM 0.00 0.0 0.00 2.5 0.00
12/17/2014 7:00 AM 0.00 0.0 0.00 2.5 M
12/18/2014 7:00 AM T T M 2.0 M
12/19/2014 7:00 AM 0.00 0.0 0.00 0.5 M
12/20/2014 7:00 AM 0.00 0.0 M 0.5 M
12/22/2014 8:00 AM 0.13 2.0 0.13 2.0 0.13
12/23/2014 9:00 AM 0.11 2.0 0.11 3.0 0.34
12/24/2014 8:00 AM 0.00 0.0 M 2.5 0.61
12/25/2014 8:30 AM 0.00 0.0 M 2.5 0.41
12/26/2014 8:00 AM 0.12 3.0 0.14 5.0 0.47
12/27/2014 7:00 AM 0.00 0.0 M M M
12/28/2014 8:00 AM 0.00 0.0 M 3.5 M
12/29/2014 7:00 AM 0.10 1.0 0.10 4.5 0.16
12/30/2014 7:00 AM 0.08 1.0 0.13 5.5 0.65
12/31/2014 7:00 AM T T M 5.5 M
1/1/2015 7:00 AM 0.00 0.0 M 5.0 M
1/2/2015 7:00 AM 0.00 0.0 M M M
1/3/2015 7:00 AM 0.00 0.0 M 5.0 M
1/4/2015 7:00 AM T T M 5.5 M
1/5/2015 5:00 PM 0.00 0.0 M 4.0 0.75
1/6/2015 7:00 AM 0.00 0.0 M 3.5 M
1/7/2015 9:00 AM T T T 1.5 M
1/8/2015 7:00 AM 0.00 0.0 M 1.5 M
1/9/2015 7:00 AM 0.00 0.0 M 0.0 M Heavy frost
1/10/2015 7:00 AM 0.00 0.0 M 0.0 M
1/11/2015 7:00 AM 0.00 0.0 M M M
1/12/2015 7:00 AM 0.03 0.5 0.03 0.5 M
1/13/2015 7:00 AM 0.00 0.0 M 0.0 M
1/14/2015 7:00 AM 0.02 T M T M
1/15/2015 7:00 AM 0.00 0.0 M 0.0 M
1/16/2015 7:00 AM 0.00 0.0 M 0.0 M
1/17/2015 7:00 AM 0.03 0.6 0.03 M M
1/18/2015 7:00 AM 0.00 0.0 M 0.0 M
1/19/2015 7:00 AM 0.00 0.0 M 0.0 M
1/20/2015 7:00 AM 0.01 0.3 M 0.3 M
1/21/2015 7:30 AM 0.01 1.3 0.01 M M Very fluffy snow. 1.3" new snow equivalent to only 0.01 inches yielded only 0.01 in the rain gauge. No wind. (our rain gauge is on the top of a hill)
1/22/2015 7:30 AM 0.17 4.5 28.00 4.5 0.28
1/23/2015 7:00 AM 0.00 0.0 M 4.7 M
1/25/2015 7:00 AM 0.00 0.0 M 1.5 M
1/26/2015 7:00 AM 0.00 0.0 M 1.0 0.20
1/27/2015 7:00 AM 0.00 0.0 M M M
1/28/2015 7:00 AM T 0.0 M 0.0 M Trace if sleet in morning.
1/29/2015 7:00 AM 0.00 0.0 M M M
1/30/2015 7:00 AM 0.00 0.0 M 0.0 M
1/31/2015 10:00 AM 0.02 0.2 M 0.2 M
2/1/2015 7:00 AM 0.07 0.5 M 0.7 M
2/2/2015 7:00 AM 0.00 0.0 M 0.0 M
2/4/2015 8:20 AM 0.08 1.1 0.08 1.1 0.10
2/5/2015 7:00 AM 0.12 1.3 M 2.4 M
2/6/2015 7:00 AM 0.00 0.0 M 1.0 M
2/7/2015 7:00 AM 0.00 0.0 M 0.0 M
2/8/2015 7:00 AM 0.00 0.0 M 0.0 M
2/9/2015 7:00 AM 0.00 0.0 M 0.0 M
2/10/2015 7:45 AM 0.00 0.0 M 0.0 M Traces of snow blowing in from the west.
2/11/2015 8:20 AM 0.20 2.0 0.20 2.5 0.25 Snow looks like puff balls.
2/12/2015 7:00 AM 0.00 0.0 M 1.0 0.22
2/13/2015 7:00 AM 0.00 0.0 M 0.0 M
2/14/2015 7:00 AM 0.00 0.0 M 0.0 M
2/15/2015 7:00 AM 0.00 0.0 M 0.0 M
2/16/2015 8:55 AM 0.51 7.0 0.66 7.0 0.66
2/17/2015 8:00 AM 0.19 3.5 0.14 8.5 1.01
2/18/2015 7:00 AM 0.02 M 0.02 9.0 M The snow in the rain gauge was all blown in from the west, representing wind blown into the rain gauge. We are caught up in the horrible winter westerly wind regime. The 9.0 total snow reported is from a few feet north of the rain gauge. 9.0 in also a good estimate of the snow covering the ground south of our house.
2/19/2015 7:00 AM 0.00 0.0 M 7.0 M
2/20/2015 7:00 AM 0.00 0.0 M 5.5 M
2/21/2015 10:00 AM 0.03 0.5 0.03 5.0 M
2/22/2015 8:30 AM 0.26 3.5 0.33 6.5 M
2/24/2015 7:00 AM 0.00 0.0 M 7.0 M
4/4/2015 7:00 AM 0.00 0.0 M M M
4/5/2015 7:00 AM 0.00 0.0 M M M
4/6/2015 7:00 AM 0.00 0.0 M M M
4/7/2015 7:00 AM 0.00 0.0 M M M
4/8/2015 7:00 AM 0.00 0.0 M M M Frost
4/9/2015 7:00 AM T 0.0 M M M
4/10/2015 7:00 AM 0.00 0.0 M M M
4/11/2015 7:00 AM T T M M M
4/12/2015 7:00 AM 0.00 0.0 M M M
4/13/2015 7:00 AM T 0.0 M M M
4/14/2015 7:00 AM 0.00 0.0 M M M
4/15/2015 7:00 AM 0.00 0.0 M M M
4/16/2015 7:00 AM 0.08 1.0 0.08 1.0 M Took the hail pad into house to protect it from snow.
4/17/2015 7:30 AM 1.31 19.5 1.31 19.5 1.95 Strong wind from the north and east. Thunder 9:13 AM. I am not going to put out the rain gauge during the remainder of this stormy event. There is a lot of drifting in the current conditions and neither the rain gauge nor the core record meaningful data. The temperature is currently 35 degrees.
4/18/2015 7:00 AM M 1.5 0.25 15.5 2.51
4/19/2015 7:00 AM 0.38 4.0 0.38 16.0 M
4/20/2015 6:00 AM 0.06 M 0.06 11.5 3.22
4/21/2015 7:00 AM T 0.0 0.00 7.5 M
4/22/2015 7:00 AM 0.00 0.0 M 5.0 M
4/23/2015 7:00 AM 0.03 M M M M Internet was down.
4/24/2015 7:00 AM 0.00 0.0 M 2.5 M
4/25/2015 7:00 AM T T M 0.0 M Abundant graupel
4/26/2015 7:00 AM 0.09 T 0.09 T M Small graupel, rain, and snow
4/27/2015 7:00 AM 0.60 4.5 0.61 4.6 0.61
4/28/2015 7:00 AM 0.08 0.2 0.08 M M
4/29/2015 8:00 AM 0.00 0.0 M 0.0 M
4/30/2015 7:00 AM 0.00 0.0 M 0.0 M
5/1/2015 7:00 AM T M M M M
5/2/2015 7:00 AM T M M M M
5/3/2015 7:00 AM 0.00 0.0 M M M
5/4/2015 7:00 AM 0.62 M M M M
5/5/2015 7:00 AM 0.45 0.0 M 0.0 M
5/6/2015 7:00 AM 0.23 0.0 M 0.0 M
5/7/2015 7:00 AM 0.10 M M M M
5/8/2015 7:20 AM 0.38 0.0 M 0.0 M Hail in separate report.
5/9/2015 7:25 AM 0.80 M M M M
5/10/2015 7:00 AM 0.34 1.4 0.24 1.5 0.55 Melted value from new + old snow = 0.55. This is the SWE.
5/11/2015 7:00 AM 0.01 0.3 0.01 0.3 M
5/12/2015 7:00 AM 0.00 0.0 M 0.0 M
5/13/2015 7:00 AM 0.00 0.0 M 0.0 M
5/14/2015 7:00 AM 0.04 0.0 M 0.0 M
5/15/2015 7:00 AM T 0.0 M 0.0 M A trace of rain was in the rain gauge at 7:00 AM. No report submitted at that time because our power was out and the computers shut down. However, hail fell exactly at noon on 5/15. See the hail report for that date.
5/16/2015 7:00 AM 0.14 0.0 M 0.0 M Precipitation of 0.14 inches occurred in the form of hail reported separately in a hail report for 5/15. Not reported at the time because our power was down and we had no Internet.
5/17/2015 7:00 AM T 0.0 M 0.0 M
5/18/2015 7:00 AM 0.14 0.0 M 0.0 M Hail, sleet, rain, snow, and graupel. We've had them all in the last 24 hours. Snow is falling as I write. See separate hail report beginning 3:16 PM on 5/17.I will go out to retrieve the hail pad now. Our house lies at 8750 elevation, with Douglas Mountain to the north and Clear Creek Canyon to the south. Sunny Colorado my ass! Temperature 40 degrees F. We have nearly continuous precipitation. Since the beginning of the hail storm began.
5/19/2015 7:00 AM 0.81 0.7 0.81 0.7 0.81 0.7" NS measured on hail pad. 0" remain on flagstones. More on tall grass. Outside temperature 40 degrees F. Leaving on vacation rafting in southern Utah through 5/26.
5/28/2015 7:00 AM 0.00 0.0 M M M
5/29/2015 7:00 AM 0.00 0.0 M 0.0 M
5/30/2015 7:00 AM 0.07 0.0 M 0.0 M Putting out the funnel device in the hopes that the unseasonably cold, wet, and snowy May weather is over.
5/31/2015 7:00 AM 0.00 0.0 M 0.0 M
6/1/2015 6:00 AM 0.01 0.0 M 0.0 M The rain made about 144 or less 3/8 inch lobby indentations in the hail pad. I will report hail, but with reservations, and will not return as a separate hail pad. Little rain fell until about 11:00 AM. Between 11:AM and noon my wife heard a lot of hail on our steel barn roof, but I didn't realize inside the house that rain was falling at the. Another rain storm began about 12:50 AM and is still falling at 12:54 AM. as I return to my hail report.
6/2/2015 7:00 AM 0.00 0.0 M M M
6/3/2015 7:00 AM 0.00 0.0 M 0.0 M
6/4/2015 7:00 AM 0.01 M M M M
6/5/2015 6:30 AM 0.02 0.0 M 0.0 M Douglas Mountain lies in a rain shadow. I have never seen it so clearly. .02 inches precipitation at our station, .13 and .14 to the south.and up to 1.10 and 0.96 to the east at 6:43 to the east and north. Lots of thunder and lightning last night to the east and northeast.
6/6/2015 7:00 AM 0.44 0.0 M 0.0 M See separate hail pad.
6/7/2015 7:00 AM 0.16 0.0 M 0.0 M
6/8/2015 7:00 AM 0.07 0.0 M 0.0 M
6/9/2015 7:00 AM 0.00 0.0 M M M
6/10/2015 7:00 AM 0.03 0.0 M 0.0 M
6/11/2015 7:00 AM 0.05 0.0 M 0.0 M
6/12/2015 7:00 AM 0.81 0.0 M 0.0 M
6/13/2015 7:00 AM 0.05 0.7 M 0.0 M
6/14/2015 8:00 AM 0.13 0.0 M 0.0 M Storm was sufficiently violent, with thunder, that we immediately shut off the computers. See separate hail report.
6/15/2015 7:00 AM 0.00 0.0 M M M
6/16/2015 8:00 AM 0.07 0.0 M 0.0 M
6/17/2015 7:00 AM 0.01 M M M M
6/18/2015 7:00 AM 0.00 0.0 M M M
6/19/2015 7:00 AM 0.01 0.0 M 0.0 M
6/20/2015 7:00 AM 0.00 0.0 M 0.0 M
6/21/2015 7:00 AM 0.00 0.0 M 0.0 M
6/22/2015 7:00 AM 0.00 0.0 M 0.0 M
6/23/2015 7:00 AM 0.00 0.0 M M M
6/24/2015 6:00 AM T 0.0 M 0.0 M Leaving for mini vacation for about a week.
7/2/2015 7:00 AM 0.25 0.0 M 0.0 M See separate hail report.
7/3/2015 7:00 AM 0.02 0.0 M 0.0 M
7/4/2015 7:00 AM 0.03 0.0 M 0.0 M Hail reported separately
7/5/2015 7:00 AM 0.07 0.0 M 0.0 M It must have been a very heavy rain. Sloppy indentations up to 0.5 inches in diameter. I don't want to call it hail because that would lead to too many hail reports in this very sloppy summer.
7/6/2015 7:00 AM 0.45 0.0 M 0.0 M Rain on and off since 12:20 pm. I don't believe it has played out yet.
7/7/2015 7:00 AM 0.36 0.0 M 0.0 M
7/8/2015 7:00 AM 0.27 0.0 M 0.0 M
7/9/2015 7:00 AM 0.58 0.0 M 0.0 M
7/10/2015 7:00 AM 0.15 0.0 M 0.0 M
7/11/2015 7:00 AM 0.04 0.0 M 0.0 M
7/12/2015 9:00 AM T 0.0 M 0.0 M
7/13/2015 7:00 AM 0.00 0.0 M 0.0 M
7/14/2015 7:00 AM 0.22 M M M M
7/15/2015 7:00 AM 0.01 0.0 M 0.0 M
7/16/2015 8:30 AM 0.05 0.0 M 0.0 M
7/18/2015 7:00 AM 0.00 0.0 M 0.0 M
7/19/2015 7:00 AM 0.14 0.0 M 0.0 M
7/20/2015 7:00 AM 0.04 0.0 M 0.0 M
7/21/2015 7:00 AM 0.10 0.0 M 0.0 M
7/22/2015 7:00 AM 0.05 M M M M The Douglas Mountain rain shadow returns to it's normal behavior.
7/23/2015 7:00 AM T M M M M
7/24/2015 7:00 AM 0.00 0.0 M 0.0 M
7/25/2015 7:00 AM 0.09 0.0 M 0.0 M
7/26/2015 7:00 AM 0.00 0.0 M 0.0 M
7/27/2015 7:00 AM 0.01 0.0 M 0.0 M
7/28/2015 7:00 AM 0.00 0.0 M 0.0 M
7/29/2015 7:00 AM 0.00 0.0 M 0.0 M
7/30/2015 7:00 AM 0.00 0.0 M 0.0 M
7/31/2015 7:00 AM 0.00 0.0 M 0.0 M
8/1/2015 7:00 AM 0.00 0.0 M 0.0 M
8/2/2015 7:00 AM T 0.0 M 0.0 M
8/3/2015 7:00 AM T 0.0 M 0.0 M
8/4/2015 7:00 AM 0.00 0.0 M 0.0 M
8/5/2015 7:00 AM 0.00 0.0 M 0.0 M
8/6/2015 7:00 AM 0.00 0.0 M 0.0 M
8/7/2015 7:00 AM 0.00 0.0 M 0.0 M
8/8/2015 3:00 PM 0.00 0.0 M 0.0 M
8/9/2015 7:00 AM T 0.0 M 0.0 M
8/10/2015 7:00 AM 0.01 0.0 M 0.0 M
8/11/2015 7:00 AM 0.01 0.0 M 0.0 M
8/12/2015 7:00 AM 0.00 0.0 M 0.0 M
8/13/2015 7:00 AM 0.02 0.0 M 0.0 M
8/14/2015 7:00 AM 0.02 0.0 M 0.0 M
8/15/2015 7:00 AM 0.01 0.0 M 0.0 M
8/16/2015 7:00 AM 0.39 0.0 M 0.0 M
8/17/2015 7:00 AM 0.08 0.0 M 0.0 M
8/18/2015 7:00 AM 0.03 0.0 M 0.0 M
8/19/2015 9:00 AM 0.05 0.0 M 0.0 M
8/20/2015 6:00 AM 0.00 0.0 M 0.0 M
8/21/2015 7:00 AM 0.00 0.0 M 0.0 M
8/22/2015 7:00 AM 0.00 0.0 M 0.0 M
8/23/2015 7:00 AM 0.04 0.0 M 0.0 M
8/24/2015 7:00 AM 0.00 0.0 M 0.0 M
8/25/2015 7:00 AM 0.00 0.0 M 0.0 M
8/26/2015 7:00 AM 0.00 0.0 M 0.0 M
8/27/2015 7:00 AM 0.01 0.0 M 0.0 M
8/28/2015 7:00 AM 0.00 0.0 M 0.0 M The Douglas Mtn. rain shadow exerts it's effect again. There really was no precip in our rain gauge, with small amounts everywhere around.
8/29/2015 7:00 AM 0.01 0.0 M 0.0 M
8/30/2015 7:00 AM 0.00 0.0 M 0.0 M
8/31/2015 7:00 AM 0.01 0.0 M 0.0 M
9/1/2015 7:00 AM 0.30 0.0 M 0.0 M
9/9/2015 7:00 AM 0.00 0.0 M 0.0 M
9/10/2015 7:00 AM 0.00 0.0 M 0.0 M
9/11/2015 7:00 AM 0.00 0.0 M 0.0 M
9/12/2015 7:00 AM 0.00 0.0 M 0.0 M
9/13/2015 7:00 AM 0.00 0.0 M 0.0 M
9/14/2015 7:00 AM 0.00 0.0 M 0.0 M See separate hail report.
9/15/2015 7:00 AM 0.00 0.0 M 0.0 M
9/16/2015 7:00 AM 0.00 0.0 M 0.0 M
9/17/2015 7:00 AM 0.00 0.0 M 0.0 M
9/18/2015 7:00 AM T 0.0 M 0.0 M
9/19/2015 7:00 AM 0.00 0.0 M 0.0 M
9/20/2015 7:00 AM 0.00 0.0 M 0.0 M
9/21/2015 7:00 AM 0.00 0.0 M 0.0 M
9/22/2015 7:00 AM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
2/23/2015 4/03/2015 8:00 AM 40 4.30 4.3 0.28 Back from vacation in Patagonia since 2/23/2015
2/25/2015 4/02/2015 8:00 AM 37 4.50 4.5 0.34 Our house sitter said there was a few inches of snow while we were on our trip to Patgonia, but there was no snow on the ground or moisture in the rain gauge when we returned on March 31. A trace of snow (.01 in) had fallen overnight on April 1, but I was too tired from travel to deal with it.
5/19/2015 5/27/2015 2:30 PM 9 0.59 0.0 0.00
6/25/2015 7/01/2015 8:00 AM 7 0.14 0.0 0.00
9/7/2015 9/08/2015 7:00 AM 2 0.47 0.0 0.00
9/22/2015 10/04/2015 10:00 AM 13 0.52 M M We were out of town from 9/22/15 until 8:00 PM on 10/04/2015, 8:00 PM. A hail storm had recently hit all of Douglas Mountain, and we measured 2 inches of hail on the south side of our house, where hail normally accumulates. I will submit a separate hail report after I retrieve the hail pad.



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
4/15/2015 12:00 AM The hail started exactly at noon at our house. I had to leave immediately to make an appointment in Lakewood, leaving my wife at home. The power was out due to an electrical short that had nothing to do with the hail storm, but we did not get our power back until Saturday afternoon, so this report was not made until Sunday afternoon after we had made an almost 300 foot trench between our house and the well head. The new power line is lying in the trench until the electrician is able to complete installation and testing of our new solar electric system. I left the house a few minutes after noon, with the hail still falling, hurrying to make my appointment, when almost a half a mile from our house I skidded off the road because of 3 inches of slushy hail. Fortunately, I was able to back out of the ditch and continue to my appointment. I could see black clouds to the southeast over Golden Gate Canyon, so I detoured south and west down Douglas Mountain Drive to Clear Creek and US 6. A decade or more ago I was caught in the beginnings of a flash flood in Golden Gate Canyon, which I rashly, but successfully, raced all the way to Golden. 3/8" 1/4" Pea Size Rice Mixed|White Ice 15 3min no damage Continuous False Before rain 288 0.1 1.0
5/1/2015 2:34 PM Brought hail pad in. Had been out since 4.14.2015, with the exception of the snowiest days. New hail pad. 1/4" Pea Size Rice Rice Hard|White Ice 3 1min no damage Intermittent True After rain vertical 500 .2 0
1/1/0001 12:00 AM I heard thunder in the afternoon but I did not suspect hail until I visited the hail pad at 7:20 AM on 8/8. 1/4" Pea Size Rice Rice Hard no damage False 1280 .15
1/1/0001 12:00 AM Often this rainy and snow week there has been graupel and sleet as well as rain and snow. For 5/8 I submitted a hail report that with only a little hail. However, the storm I am reporting on 5/9/15, discovered at 7:25 AM, was clear very fine, HARD hail that probably occurred the evening or night time of 5/9 (based only on the basis that hail often occurs in the afternoon or evening). 1/4" Pea Size Rice Rice Hard no damage True 1152 0.2
5/17/2015 3:16 PM Report filed at 3:40 PM is an interim report. I will replace it when the piss ant storm is complete. 7:44 AM 5/18/2015. I'm going to go out and bring in the hail pad and put out another one. 1/4" Pea Size Rice Rice Hard 1min no damage Intermittent True Before rain After smaller hail 1056 0.2
1/1/0001 12:00 AM The hail fell when we were out of town between 5/18/15 and 5/22/15. I left the pad out until 5/18/15 even after our return on 3/30/am because had used up all our hail pads. The pad sustained at least 1000 strikes that fell into 2 classes. Rice sized more numerous. pea size dominated in power. Our new hail pad is out as of 3:15 PM on 5/30/15. 1/4" Pea Size 1/4" Pea Size Rice Hard False 1100 0.15 0
5/31/2015 4:00 PM Hail pad was not taken so as to save space for a more significant hail storm. These broad, sloppy. water hail clumps can be over written by real hail falling at a later day, most likely this rainy afternoon (6/1/2015). 1/2" Grape 3/8" 3/8" Soft 2 10min no damage False 144 1
6/1/2015 12:51 AM This hail pad contains the slushy report I took on 5/31. Another short rainstorm occurred after the report here reported, and I PHOTOGRAPHED the hail pad for use later today (for economy). Thunder can be heard in the vicinity, but the sun is shining at our house. The pad will continue it's service until tomorrow morning, unless something changes significantly. (6/1, 1:13:PM) No change at 6/40/AM on 6/2/15. 1/2" Grape 3/8" 1/4" Pea Size Mixed 15 10min no damage Intermittent False 235 0.4
6/2/2015 10:30 AM I will make do from now on with gross approximations on number of strikes because it is foolish for me to make a careful tally. It will be done more systematically by your technician anyway. 1/4" Pea Size Rice Rice Hard 10min no damage True 768 0.20
6/13/2015 8:00 PM I was unaware of the hail until the next morning. 1/4" Pea Size 1/4" Pea Size Rice Hard no damage True 432 0.25
1/1/0001 12:00 AM The hail occurred while we were away between 6/14 and 7/01. The rain gauge had 0.14 inches of precip when I observed it about 8:00 PM on 7/30. It was full of pine pollen. The most likely time and date of the hail was on 6/24 when precip was widespread. I left the hail pad (which had been in place since 6/14/2015) on the hail pad until 8 AM on 7/1, when another storm caused me to replace it to catch a second event. 1/4" Pea Size 1/4" Pea Size Rice False 10 2
7/1/2015 1:36 PM Heavy hail storm began with thunder and lightning at 1:36 PM on 7/1. I had taken the hail pad in at 8:AM on 7/1 after a small hail storm that occurred while we were on vacation (see hail report for 7/1, date of hail uncertain.) It took me about 2 minutes to set up a new hail pad, during which time most of the hail and rain occurred. The hail pad was not in place for the largest hail (pea sized or larger), so the loss of data was significant. 1/4" Pea Size 1/4" Pea Size Rice Hard 5 3min no damage Continuous True Same time as rain Before smaller hail 10-20 166 0.25
1/1/0001 12:00 AM Hail storm not observed. 1/4" Pea Size 1/4" Pea Size Rice Hard no damage True vertical 246 0.2
7/8/2015 10:07 AM Hail and rain began abruptly at 10:07 AM. I did not observe the hail or hail indentations until 8:00 AM on July 9. This is a perfect example of a situation when I don't know if larger indentations (splats) up to grape size or more are from soft hail or rain. I WOULD LIKE THE TECHNICIAN WHO EXAMINES THE HAIL PAD TO EMAIL ME at (geoperegrino@gmail.com), John Cady, CO-JF-267, phone 303-277-1843 to clarify for me what is soft hail and what is heavy rain. I have troubled over this question ever since I began maintaining a rain gauge. 1/4" Pea Size 1/4" Pea Size Rice Hard|Soft no damage True Same time as rain 176 0.25
1/1/0001 12:00 AM This is a spurious report that I can't delete with. Please eliminate. NA NA NA False
7/15/2015 3:42 PM IMPORTANT CORRECTION: I ENTERED THE TIME OF THE LIGHTNING STRIKE YESTERDAY ERRONEOUSLY. THE STRIKE BEGAN WITH A BANG AT 3:42, NOT AT 2:42 AS I WROTE. Thunder and a single opening lightning strike that seemed close to our house at 3:42 PM. (I am not sure of the timing. There is a small chance that the time of the lightning strike was 3:42 PM. That can be verified from weather data and the 911 call that brought the fire department.) The storm was directly overhead and southeast of our house. I could not see what was happening to the north and east. The sun came out about 3:42 PM and hail had ended, and soon the rain as well. 6:29 PM. I went for a walk to the mailbox with my dog about 4:30 PM. A helicopter flew over our property heading west, circled, and landed at our driveway. My walk took me to an overlook about 1/4 mile from the county road, Douglas Mountain Drive. There were emergency vehicles blocking the road with flashing red lights. When I approached the county road, a member of the Golden Gate Fire Department told me I needed to move far enough from the action for a helicopter to land and not involve my dog, which I took west on our driveway and leashed. I learned that a neighbor on Douglas Mountain Drive had been struck by lightning, but I learned no more at the time because I had to move away from the action with my dog to ensure that the helicopter, which landed sometime later, would have a clear landing. The lightning strike must have been the opening (and short lived volley that announced the brief hail storm). 10:50 PM. I later learned that the neighbor, who was working on the south side of his property when the lightning struck, was transferred to the hospital on the helicopter, was alert and stable, but his Labrador retriever had been killed by the lightning strike. 3/8" 1/4" Pea Size 1/4" Pea Size Hard|Mixed|White Ice 4 1min no damage Continuous False Before rain Before smaller hail 30-40 40 3.6
1/1/0001 12:00 AM This hail was a surprise. I have been checking the rain gauge regularly every morning, and usually the hail pad as well, and this is the first hail to strike the pad since I put this hail pad out on 7/16/2015 at 8:20/15. I know nothing more about the hail that must have fallen yesterday. NA NA Rice Hard no damage False 0.5