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 09 1.43 2.44 31 2.44 31 0.00 0 0 11 2 32.1 8 8
Nov 09 1.05 1.16 26 1.16 26 0.00 0 0 3 1 10.5 3 11
Dec 09 0.82 0.54 31 0.54 31 0.00 0 0 9 3 11.9 9 18
Jan 10 0.60 0.24 31 0.24 31 0.00 0 0 2 4 4.5 1 3
Feb 10 0.70 1.04 26 1.04 26 0.00 0 0 10 4 15.8 9 15
March 10 1.99 2.66 31 2.66 31 0.00 0 0 12 0 39.5 12 20
April 10 2.61 2.76 30 2.76 30 0.00 0 0 8 5 25.6 7 8
May 10 2.39 1.75 30 1.75 30 0.00 0 0 8 3 8.3 4 5
June 10 2.23 1.95 22 1.95 22 0.00 0 0 5 2 0.0 0 0
July 10 2.38 1.69 31 0.92 14 0.77 17 1 7 0 0.0 0 0
Aug 10 2.71 2.30 29 1.72 21 0.58 8 1 11 1 0.0 0 0
Sept 10 1.64 0.30 30 0.25 15 0.05 15 2 1 0 0.0 0 0
Water Year Totals: 20.55" 18.83" 348 days 17.43" 308 1.40" 40 days 4 87 days 25 days 148.2" 53 days 88 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
10/1/2009 0.00
10/2/2009 0.00
10/3/2009 0.00
10/4/2009 0.00
10/5/2009 0.01
10/6/2009 0.04
10/7/2009 0.00
10/8/2009 T
10/9/2009 0.03
10/10/2009 T
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.00
10/15/2009 0.01
10/16/2009 0.00
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 0.00
10/20/2009 0.00
10/21/2009 0.16
10/22/2009 0.10
10/23/2009 0.00
10/24/2009 0.00
10/25/2009 0.05
10/26/2009 0.28
10/27/2009 0.00
10/28/2009 0.60
10/29/2009 0.69
10/30/2009 0.47
10/31/2009 0.00
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 T
11/14/2009 0.30
11/15/2009 0.75
11/16/2009 0.11
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009
11/25/2009 0.00
11/26/2009 0.00
11/27/2009 0.00
11/28/2009
11/29/2009
11/30/2009
12/1/2009 0.00
12/2/2009 0.09
12/3/2009 0.06
12/4/2009 T
12/5/2009 0.00
12/6/2009 0.08
12/7/2009 0.02
12/8/2009 0.03
12/9/2009 0.04
12/10/2009 0.00
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.00
12/14/2009 0.03
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 T
12/19/2009 0.00
12/20/2009 0.00
12/21/2009 0.00
12/22/2009 0.00
12/23/2009 0.12
12/24/2009 0.07
12/25/2009 0.00
12/26/2009 T
12/27/2009 0.00
12/28/2009 0.00
12/29/2009 0.00
12/30/2009 0.00
12/31/2009 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.00
1/2/2010 0.00
1/3/2010 T
1/4/2010 0.00
1/5/2010 0.00
1/6/2010 T
1/7/2010 0.23
1/8/2010 0.00
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 0.00
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.00
1/19/2010 0.00
1/20/2010 0.00
1/21/2010 T
1/22/2010 0.00
1/23/2010 0.00
1/24/2010 T
1/25/2010 0.00
1/26/2010 0.00
1/27/2010 0.00
1/28/2010 0.01
1/29/2010 0.00
1/30/2010 0.00
1/31/2010 0.00
2/1/2010
2/2/2010 0.00
2/3/2010 0.00
2/4/2010
2/5/2010 T
2/6/2010 0.00
2/7/2010 T
2/8/2010 0.16
2/9/2010 0.04
2/10/2010 0.00
2/11/2010 0.00
2/12/2010 0.00
2/13/2010 T
2/14/2010 0.06
2/15/2010 0.01
2/16/2010 0.00
2/17/2010 0.00
2/18/2010 T
2/19/2010 0.14
2/20/2010 0.12
2/21/2010 0.05
2/22/2010 0.16
2/23/2010 0.02
2/24/2010 0.00
2/25/2010 0.00
2/26/2010 0.28
2/27/2010 0.00
2/28/2010 0.00
3/1/2010 0.04
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.01
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.05
3/9/2010 0.12
3/10/2010 0.03
3/11/2010 0.27
3/12/2010 0.00
3/13/2010 0.00
3/14/2010 0.00
3/15/2010 0.30
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.09
3/20/2010 0.52
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.00
3/24/2010 0.94
3/25/2010 0.00
3/26/2010 0.00
3/27/2010 0.23
3/28/2010 0.06
3/29/2010 0.00
3/30/2010 0.00
3/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 T
4/3/2010 0.00
4/4/2010 0.00
4/5/2010 T
4/6/2010 0.01
4/7/2010 0.23
4/8/2010 0.00
4/9/2010 0.00
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 T
4/14/2010 T
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 T
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.57
4/23/2010 0.25
4/24/2010 0.89
4/25/2010 0.00
4/26/2010 0.39
4/27/2010 0.00
4/28/2010 0.00
4/29/2010 0.29
4/30/2010 0.13
5/1/2010 0.00
5/2/2010 T
5/3/2010 0.01
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 0.00
5/10/2010 0.00
5/11/2010 0.00
5/12/2010 0.41
5/13/2010 0.18
5/14/2010 0.39
5/15/2010 0.39
5/16/2010 0.05
5/17/2010 0.00
5/18/2010 T
5/19/2010 T
5/20/2010 0.00
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.00
5/24/2010 0.00
5/25/2010 0.00
5/26/2010 0.00
5/27/2010 0.01
5/28/2010
5/29/2010 0.00
5/30/2010 0.31
5/31/2010 0.00
6/1/2010 0.00
6/2/2010 0.00
6/3/2010 0.00
6/4/2010 0.00
6/5/2010 T
6/6/2010 0.00
6/7/2010 0.00
6/8/2010 T
6/9/2010 0.00
6/10/2010 0.00
6/11/2010 0.01
6/12/2010 1.40
6/13/2010 0.44
6/14/2010 0.00
6/15/2010 0.01
6/16/2010 0.00
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010 0.00
6/24/2010
6/25/2010 0.00
6/26/2010 0.00
6/27/2010 0.09
6/28/2010 0.00
6/29/2010
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.03
7/3/2010 **
7/4/2010 **
7/5/2010 **
7/6/2010 **
7/7/2010 **
7/8/2010 **
7/9/2010 **
7/10/2010 **
7/11/2010 **
7/12/2010 **
7/13/2010 **
7/14/2010 **
7/15/2010 **
7/16/2010 **
7/17/2010 **
7/18/2010 **
7/19/2010 0.77
7/20/2010 0.02
7/21/2010 0.15
7/22/2010 0.01
7/23/2010 0.00
7/24/2010 0.00
7/25/2010 0.00
7/26/2010 0.00
7/27/2010 0.00
7/28/2010 0.17
7/29/2010 0.00
7/30/2010 0.32
7/31/2010 0.22
8/1/2010 0.00
8/2/2010 0.23
8/3/2010 0.55
8/4/2010 0.04
8/5/2010 0.00
8/6/2010 0.15
8/7/2010 0.42
8/8/2010 0.05
8/9/2010 0.03
8/10/2010 **
8/11/2010 **
8/12/2010 **
8/13/2010 **
8/14/2010 **
8/15/2010 **
8/16/2010 **
8/17/2010 0.58
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.03
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.00
8/24/2010 0.06
8/25/2010 0.02
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.14
8/29/2010
8/30/2010
8/31/2010 T
9/1/2010 0.00
9/2/2010 0.00
9/3/2010 0.00
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.25
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 **
9/14/2010 **
9/15/2010 **
9/16/2010 **
9/17/2010 **
9/18/2010 **
9/19/2010 **
9/20/2010 **
9/21/2010 **
9/22/2010 **
9/23/2010 0.05
9/24/2010 0.00 **
9/25/2010 **
9/26/2010 **
9/27/2010 0.00
9/28/2010 0.00
9/29/2010
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.00 0.0 M M M
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 7:30 AM 0.00 0.0 M M M
10/4/2009 7:00 AM 0.00 0.0 M M M
10/5/2009 7:00 AM 0.01 0.0 M M M Some of the precip occurred as snow, but it soon melted.
10/6/2009 7:30 AM 0.04 0.0 M 0.0 M
10/7/2009 7:00 AM 0.00 0.0 M M M
10/8/2009 7:00 AM T 0.0 M M M
10/9/2009 7:00 AM 0.03 0.4 M M M
10/10/2009 7:30 AM T T M M M A little snow, mainly frost
10/11/2009 7:30 AM 0.00 0.0 M M M All frost. At 8:00 we are in the sun and the cloud line is below us.
10/12/2009 7:30 AM 0.00 0.0 M M M
10/13/2009 7:00 AM 0.00 0.0 M 0.0 M
10/14/2009 7:00 AM 0.00 0.0 M 0.0 M
10/15/2009 7:00 AM 0.01 0.0 M 0.0 M
10/16/2009 7:00 AM 0.00 0.0 M M M
10/17/2009 7:00 AM 0.00 0.0 M M M
10/18/2009 7:00 AM 0.00 0.0 M 0.0 M
10/19/2009 7:00 AM 0.00 0.0 M 0.0 M
10/20/2009 7:30 AM 0.00 0.0 M 0.0 M
10/21/2009 7:30 AM 0.16 1.3 0.18 1.3 0.18
10/22/2009 7:40 AM 0.10 0.7 0.09 1.5 M
10/23/2009 8:30 AM 0.00 0.0 0.00 0.0 0.00
10/24/2009 5:30 AM 0.00 0.0 0.00 0.0 0.00
10/25/2009 7:30 AM 0.05 0.7 0.05 0.7 0.05
10/26/2009 8:30 AM 0.28 4.0 0.25 4.5 M
10/27/2009 7:40 AM 0.00 0.0 0.00 0.0 0.00
10/28/2009 7:50 AM 0.60 12.0 0.59 12.0 0.59
10/29/2009 8:30 AM 0.69 6.0 M 18.0 1.29
10/30/2009 8:00 AM 0.47 7.0 M 17.0 1.97 We are on the top of a North trending ridge at 8750 ft elev. We have entered a drift regime where incoming drifted snow balances outgoing drifted snow.
10/31/2009 8:00 AM 0.00 0.0 0.00 12.0 M
11/1/2009 7:00 AM 0.00 0.0 0.00 10.0 M
11/2/2009 6:40 AM 0.00 0.0 0.00 3.5 M
11/3/2009 7:00 AM 0.00 0.0 M 3.0 M
11/4/2009 7:00 AM 0.00 0.0 M 2.5 M
11/5/2009 7:00 AM 0.00 0.0 M 0.0 M
11/6/2009 7:00 AM 0.00 0.0 M 0.0 M
11/7/2009 7:00 AM 0.00 0.0 M 0.0 M
11/8/2009 7:00 AM 0.00 0.0 M 0.0 M
11/9/2009 7:00 AM 0.00 0.0 M 0.0 M
11/10/2009 7:00 AM 0.00 0.0 M 0.0 M
11/11/2009 7:30 AM 0.00 0.0 M 0.0 M
11/12/2009 8:00 AM 0.00 0.0 M 0.0 M
11/13/2009 7:00 AM T T T T M
11/14/2009 7:30 AM 0.30 2.0 0.16 2.0 0.30
11/15/2009 7:20 AM 0.75 8.0 0.75 9.0 1.36
11/16/2009 7:00 AM 0.11 0.5 M 6.0 M
11/17/2009 7:00 AM 0.00 0.0 M 4.5 M
11/18/2009 7:00 AM 0.00 0.0 M 2.0 M
11/19/2009 7:00 AM 0.00 0.0 M 1.0 M
11/20/2009 7:00 AM 0.00 0.0 M 1.0 M
11/21/2009 7:00 AM 0.00 0.0 M T M
11/22/2009 7:00 AM 0.00 0.0 M T M
11/23/2009 7:00 AM 0.00 0.0 M T M
11/25/2009 7:00 AM 0.00 0.0 M 0.0 M
11/26/2009 7:00 AM 0.00 0.0 M 0.0 M
11/27/2009 7:00 AM 0.00 0.0 M 0.0 M
12/1/2009 7:00 AM 0.00 0.0 M 0.0 M
12/2/2009 7:20 AM 0.09 2.4 0.12 M M
12/3/2009 7:20 AM 0.06 1.2 0.08 2.5 M
12/4/2009 7:00 AM T T M 2.5 M This snow in the rain gauge and on the hail pad was probably wind drift.
12/5/2009 8:00 AM 0.00 0.0 M 2.0 M
12/6/2009 7:00 AM 0.08 1.8 0.12 3.3 0.31
12/7/2009 7:30 AM 0.02 0.4 0.02 3.5 0.38
12/8/2009 7:20 AM 0.03 0.5 0.07 3.5 M
12/9/2009 7:00 AM 0.04 0.6 0.04 M M I do not think that there was any new snow. However, looking at today's map, everyone is calling it snow, so I will conform and report the melted wind drift as precipitation.
12/10/2009 7:00 AM 0.00 0.0 M 4.0 M
12/11/2009 7:00 AM 0.00 0.0 M M 4.00
12/12/2009 8:00 AM 0.00 0.0 M 3.5 M
12/13/2009 8:30 AM 0.00 0.0 M 2.0 M
12/14/2009 7:30 AM 0.03 0.5 0.03 2.0 M
12/15/2009 7:00 AM 0.00 0.0 M 2.5 M
12/16/2009 7:00 AM 0.00 0.0 M M M
12/17/2009 8:00 AM 0.00 0.0 M 1.0 M
12/18/2009 8:00 AM T T M 1.0 M
12/19/2009 7:00 AM 0.00 0.0 M T M
12/20/2009 7:00 AM 0.00 0.0 M M M
12/21/2009 8:30 AM 0.00 0.0 M 0.0 M
12/22/2009 9:00 AM 0.00 0.0 M 0.0 M
12/23/2009 7:30 AM 0.12 2.3 0.12 2.3 0.12
12/24/2009 8:30 AM 0.07 2.2 0.15 4.5 M
12/25/2009 6:00 AM 0.00 0.0 M 0.0 M
12/26/2009 7:00 AM T T M 2.0 M
12/27/2009 7:00 AM 0.00 0.0 M 2.0 M
12/28/2009 8:30 AM 0.00 0.0 M 2.5 M
12/29/2009 7:00 AM 0.00 0.0 M M M
12/30/2009 8:00 AM 0.00 0.0 M 0.0 M
12/31/2009 7:00 AM 0.00 0.0 M M M
1/1/2010 7:00 AM 0.00 0.0 M M M
1/2/2010 8:30 AM 0.00 0.0 M 0.0 M
1/3/2010 9:00 AM T T M 0.0 M Snow flurries the afternoon of January 2
1/4/2010 11:00 AM 0.00 0.0 M M M
1/5/2010 7:00 AM 0.00 0.0 M 0.0 M
1/6/2010 7:30 AM T T M T M
1/7/2010 7:20 AM 0.23 4.5 0.27 4.5 0.27
1/8/2010 8:00 AM 0.00 0.0 M 2.5 M
1/9/2010 8:00 AM 0.00 0.0 M 1.5 M
1/10/2010 7:00 AM 0.00 0.0 M M M
1/11/2010 7:00 AM 0.00 0.0 M 0.0 M
1/12/2010 7:00 AM 0.00 0.0 M 0.0 M
1/13/2010 7:00 AM 0.00 0.0 M M M
1/14/2010 7:00 AM 0.00 0.0 M 0.0 M
1/15/2010 7:00 AM 0.00 0.0 M M M
1/16/2010 7:00 AM 0.00 0.0 M 0.0 M
1/17/2010 7:00 AM 0.00 0.0 M M M
1/18/2010 7:30 AM 0.00 0.0 M 0.0 M
1/19/2010 7:00 AM 0.00 0.0 M M M
1/20/2010 7:00 AM 0.00 0.0 M 0.0 M
1/21/2010 7:00 AM T T M T M
1/22/2010 7:30 AM 0.00 0.0 M 0.0 M
1/23/2010 7:00 AM 0.00 0.0 M 0.0 M
1/24/2010 8:00 AM T T M T M
1/25/2010 7:00 AM 0.00 0.0 M 0.0 M
1/26/2010 7:00 AM 0.00 0.0 M 0.0 M
1/27/2010 7:00 AM 0.00 0.0 M 0.0 M
1/28/2010 7:00 AM 0.01 T M T M
1/29/2010 7:00 AM 0.00 0.0 M M M
1/30/2010 7:00 AM 0.00 0.0 M M M
1/31/2010 7:00 AM 0.00 0.0 M 0.0 M
2/2/2010 7:00 AM 0.00 0.0 M 0.0 M
2/3/2010 7:00 AM 0.00 0.0 M 0.0 M
2/5/2010 5:00 AM T T M T M
2/6/2010 7:00 AM 0.00 0.0 M 0.0 M
2/7/2010 7:00 AM T T M T M
2/8/2010 7:00 AM 0.16 2.7 0.21 2.7 0.21
2/9/2010 7:45 AM 0.04 0.5 0.05 4.5 0.22
2/10/2010 7:00 AM 0.00 0.0 M 1.0 M
2/11/2010 7:00 AM 0.00 0.0 M T M
2/12/2010 7:00 AM 0.00 0.0 M 0.0 M
2/13/2010 7:00 AM T T M T M
2/14/2010 8:45 AM 0.06 1.4 0.09 1.4 M
2/15/2010 7:00 AM 0.01 T M 1.5 0.11
2/16/2010 7:00 AM 0.00 0.0 M T M
2/17/2010 7:00 AM 0.00 0.0 M 0.0 M
2/18/2010 7:00 AM T T M T M
2/19/2010 7:30 AM 0.14 1.7 0.19 1.7 0.19
2/20/2010 9:15 AM 0.12 1.4 0.12 2.8 0.36
2/21/2010 8:50 AM 0.05 1.2 0.05 4.0 0.47
2/22/2010 7:30 AM 0.16 1.2 0.16 5.0 0.64
2/23/2010 7:30 AM 0.02 0.5 0.06 4.0 M
2/24/2010 7:15 AM 0.00 0.0 M 3.5 M
2/25/2010 7:00 AM 0.00 0.0 M 2.5 M
2/26/2010 7:00 AM 0.28 5.2 0.32 8.5 0.92
2/27/2010 7:00 AM 0.00 0.0 M 4.0 M
2/28/2010 7:00 AM 0.00 0.0 M 3.5 M
3/1/2010 8:30 AM 0.04 0.8 0.03 5.0 0.78
3/2/2010 7:00 AM 0.00 0.0 M M M
3/3/2010 7:00 AM 0.00 0.0 M 2.0 M
3/4/2010 7:00 AM 0.00 0.0 M T M
3/5/2010 7:30 AM 0.01 0.4 0.01 0.5 0.01
3/6/2010 7:00 AM 0.00 0.0 M 0.0 M
3/7/2010 7:30 AM 0.00 0.0 M 0.0 M
3/8/2010 7:15 AM 0.05 1.0 0.07 1.0 0.07
3/9/2010 7:00 AM 0.12 1.2 0.15 1.5 M
3/10/2010 6:50 AM 0.03 0.9 0.04 1.0 0.05
3/11/2010 7:30 AM 0.27 4.4 0.26 5.0 0.52
3/12/2010 7:00 AM 0.00 0.0 M 1.5 M
3/13/2010 7:00 AM 0.00 0.0 M T M
3/14/2010 7:00 AM 0.00 0.0 M 0.0 M
3/15/2010 7:01 AM 0.30 3.0 M M M Interpolated precip and new snow from map. (Lost record)
3/16/2010 7:00 AM 0.00 0.0 M 0.0 M
3/17/2010 7:00 AM 0.00 0.0 M M M
3/18/2010 7:00 AM 0.00 0.0 M 0.0 M
3/19/2010 7:02 AM 0.09 1.2 0.10 1.2 0.10
3/20/2010 7:15 AM 0.52 6.5 0.42 14.0 2.12 About 4" of the 14" total snow is due to drifting from the northeast.
3/21/2010 7:00 AM 0.00 0.0 M 4.0 M
3/22/2010 6:50 AM 0.00 0.0 M 4.0 0.68
3/23/2010 7:00 AM 0.00 0.0 M M M
3/24/2010 7:01 AM 0.94 14.2 1.19 14.2 1.19
3/25/2010 7:00 AM 0.00 0.0 M 9.0 M
3/26/2010 7:00 AM 0.00 0.0 0.00 5.5 1.10
3/27/2010 7:40 AM 0.23 5.5 0.21 11.5 M
3/28/2010 7:40 AM 0.06 0.4 0.08 8.0 M
3/29/2010 7:15 AM 0.00 0.0 M 6.0 1.64
3/30/2010 7:10 AM 0.00 0.0 M 5.5 M
3/31/2010 7:00 AM 0.00 0.0 M 1.0 M
4/1/2010 7:00 AM 0.00 0.0 M T M
4/2/2010 7:00 AM T T M T M graupel yesterday pm
4/3/2010 7:00 AM 0.00 0.0 M 0.0 M
4/4/2010 7:00 AM 0.00 0.0 M 0.0 M
4/5/2010 7:00 AM T T M T M
4/6/2010 7:00 AM 0.01 0.2 M 0.2 M
4/7/2010 8:00 AM 0.23 6.5 0.23 6.5 0.24
4/8/2010 7:00 AM 0.00 0.0 M 0.0 M
4/9/2010 7:00 AM 0.00 0.0 M M M
4/10/2010 7:00 AM 0.00 0.0 M 0.0 M Moderate frost
4/11/2010 7:00 AM 0.00 0.0 M 0.0 M
4/12/2010 7:00 AM 0.00 0.0 M M M
4/13/2010 7:00 AM T 0.0 M 0.0 M
4/14/2010 7:00 AM T T M M M A few flakes of snow fell at 8750 ft elevation yesterday afternoon.
4/15/2010 7:00 AM 0.00 0.0 M 0.0 M
4/16/2010 7:00 AM 0.00 0.0 M 0.0 M
4/17/2010 7:00 AM 0.00 0.0 M 0.0 M
4/18/2010 7:00 AM T T M T M
4/19/2010 7:00 AM 0.00 0.0 M 0.0 M
4/20/2010 7:00 AM 0.00 0.0 M 0.0 M
4/21/2010 7:00 AM 0.00 0.0 M 0.0 M
4/22/2010 7:00 AM 0.57 0.0 M 0.0 M Rain and a little snow at 8750'. 40 F.
4/23/2010 7:30 AM 0.25 2.8 24.00 3.0 24.00
4/24/2010 7:00 AM 0.89 6.5 0.47 12.5 1.27
4/25/2010 7:00 AM 0.00 0.0 M 6.5 1.13
4/26/2010 7:00 AM 0.39 3.4 0.34 7.0 1.26
4/27/2010 7:00 AM 0.00 0.0 M 3.5 M
4/28/2010 7:00 AM 0.00 0.0 M 0.0 M
4/29/2010 7:00 AM 0.29 4.2 0.46 M M
4/30/2010 7:00 AM 0.13 2.0 0.12 2.0 M
5/1/2010 7:00 AM 0.00 0.0 M 1.0 M
5/2/2010 8:00 AM T T M T M
5/3/2010 7:00 AM 0.01 0.1 M 0.1 M
5/4/2010 7:00 AM 0.00 0.0 M 0.0 M
5/5/2010 7:00 AM 0.00 0.0 M 0.0 M
5/6/2010 7:00 AM 0.00 0.0 M M M
5/7/2010 7:00 AM 0.00 0.0 M M M Precipitation .05 interpolated from map. Three zeros, one trace, and three measurable values were interpolated from the map on 5/21/2010. I was erratic in observations this month due to an injury.
5/8/2010 7:00 AM 0.00 0.0 M 0.0 M
5/9/2010 7:00 AM 0.00 0.0 M 0.0 M
5/10/2010 7:00 AM 0.00 0.0 0.00 0.0 0.00
5/11/2010 7:00 AM 0.00 0.0 0.00 0.0 0.00 Dense fog at 8750'
5/12/2010 7:15 AM 0.41 4.6 0.39 4.6 0.39
5/13/2010 7:00 AM 0.18 M M M M .18 interpolated from map
5/14/2010 7:00 AM 0.39 2.6 0.27 5.5 M
5/15/2010 7:00 AM 0.39 1.0 0.34 1.0 0.34 wet snow and rain
5/16/2010 7:00 AM 0.05 M M M M .05 interpolated from map
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM T 0.0 M 0.0 M
5/19/2010 7:00 AM T M M M M Trace interpolated from map
5/20/2010 7:00 AM 0.00 0.0 M M M
5/21/2010 7:00 AM 0.00 0.0 M 0.0 M
5/22/2010 7:00 AM 0.00 0.0 M 0.0 M
5/23/2010 7:00 AM 0.00 0.0 M M M
5/24/2010 7:00 AM 0.00 0.0 M 0.0 M
5/25/2010 7:00 AM 0.00 0.0 M 0.0 M
5/26/2010 7:00 AM 0.00 0.0 M 0.0 M
5/27/2010 7:00 AM 0.01 M M M M
5/29/2010 6:00 AM 0.00 0.0 M 0.0 M
5/30/2010 6:30 AM 0.31 0.0 M 0.0 M
5/31/2010 6:00 AM 0.00 0.0 M 0.0 M
6/1/2010 6:00 AM 0.00 0.0 M 0.0 M
6/2/2010 7:00 AM 0.00 0.0 M 0.0 M
6/3/2010 7:00 AM 0.00 0.0 M 0.0 M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM T 0.0 M M M
6/6/2010 6:15 AM 0.00 0.0 M M M
6/7/2010 7:00 AM 0.00 0.0 M M M
6/8/2010 7:00 AM T 0.0 M 0.0 M
6/9/2010 7:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.00 0.0 M M M
6/11/2010 7:00 AM 0.01 0.0 M 0.0 M A total of 3 hard hail hits recorded on hail pad yesterday. There were also about 144 rain dents in the hail pad, which I did not collect.
6/12/2010 7:30 AM 1.40 0.0 M 0.0 M
6/13/2010 7:00 AM 0.44 0.0 M 0.0 M
6/14/2010 7:00 AM 0.00 0.0 M M M
6/15/2010 7:00 AM 0.01 0.0 M 0.0 M
6/16/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.00 0.0 M 0.0 M
6/25/2010 7:00 AM 0.00 0.0 M M M
6/26/2010 7:00 AM 0.00 0.0 M M M
6/27/2010 8:00 AM 0.09 0.0 M 0.0 M
6/28/2010 7:00 AM 0.00 0.0 M M M
6/30/2010 7:00 AM 0.00 0.0 M M M
7/1/2010 7:00 AM 0.00 0.0 M M M
7/2/2010 7:00 AM 0.03 0.0 M 0.0 M Numerous "rain dents" on the hail pad. I did not observe this storm.
7/20/2010 7:00 AM 0.02 M M M M
7/21/2010 7:00 AM 0.15 M M M M
7/22/2010 7:00 AM 0.01 M M M M
7/23/2010 7:00 AM 0.00 0.0 M M M
7/24/2010 7:00 AM 0.00 0.0 M M M
7/25/2010 7:00 AM 0.00 0.0 M M M
7/26/2010 7:00 AM 0.00 0.0 M M M
7/27/2010 7:00 AM 0.00 0.0 M M M
7/28/2010 7:00 AM 0.17 0.0 M 0.0 M
7/29/2010 7:00 AM 0.00 0.0 M 0.0 M
7/30/2010 7:00 AM 0.32 0.0 M 0.0 M
7/31/2010 7:30 AM 0.22 0.0 M 0.0 M
8/1/2010 7:00 AM 0.00 0.0 M 0.0 M
8/2/2010 6:00 AM 0.23 0.0 0.00 0.0 M
8/3/2010 7:00 AM 0.55 0.0 M 0.0 M
8/4/2010 7:00 AM 0.04 0.0 M 0.0 M
8/5/2010 7:00 AM 0.00 0.0 M 0.0 M
8/6/2010 7:00 AM 0.15 0.0 M 0.0 M
8/7/2010 7:00 AM 0.42 0.0 M 0.0 M See hail report for 8/6
8/8/2010 7:00 AM 0.05 0.0 M 0.0 M
8/9/2010 7:00 AM 0.03 0.0 0.00 0.0 0.00
8/18/2010 7:00 AM 0.00 0.0 0.00 0.0 0.00
8/19/2010 7:00 AM 0.00 0.0 M 0.0 M
8/20/2010 7:00 AM 0.03 0.0 M 0.0 M
8/21/2010 7:00 AM 0.00 0.0 M 0.0 M
8/22/2010 7:00 AM 0.00 0.0 M 0.0 M
8/23/2010 6:30 AM 0.00 0.0 M 0.0 M
8/24/2010 7:30 AM 0.06 0.0 M 0.0 M
8/25/2010 7:00 AM 0.02 0.0 M 0.0 M
8/26/2010 7:00 AM 0.00 0.0 M 0.0 M
8/27/2010 7:00 AM 0.00 0.0 M 0.0 M
8/28/2010 7:00 AM 0.14 0.0 M 0.0 M Separate hail report filed for 8.27.10 for hail pad picked up this morning.
8/31/2010 7:00 AM T 0.0 0.00 0.0 0.00 Trace of hail mixed with rain yesterday afternoon while on a walk. Time not noted.
9/1/2010 7:00 AM 0.00 0.0 M 0.0 M
9/2/2010 7:00 AM 0.00 0.0 M 0.0 M
9/3/2010 7:00 AM 0.00 0.0 M 0.0 M
9/4/2010 7:00 AM 0.00 0.0 M 0.0 M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM 0.00 0.0 M 0.0 M
9/7/2010 7:00 AM 0.00 0.0 M 0.0 M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 7:00 AM 0.25 0.0 M 0.0 M
9/10/2010 7:00 AM 0.00 0.0 M 0.0 M
9/11/2010 7:00 AM 0.00 0.0 M M M
9/12/2010 7:00 AM 0.00 0.0 M 0.0 M
9/24/2010 7:00 AM 0.00 0.0 M 0.0 M
9/28/2010 7:00 AM 0.00 0.0 M 0.0 M
9/30/2010 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
7/3/2010 7/19/2010 3:00 PM 17 0.77 0.0 0.00 Away on vacation. House sitter failed to record daily precipitation or empty rain gauge. She did, however, collect and replace hail pads twice.
8/10/2010 8/17/2010 7:00 AM 8 0.58 M M
9/13/2010 9/23/2010 7:00 AM 11 0.05 M M
9/24/2010 9/27/2010 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
5/15/2010 10:34 AM I had the hail pad out for only half the 3-minute length of the storm. The hail accumulated to a depth of 1/4 inch in the low places. Note added 6/10 when I collected the pad in anticipation of more hail. I did not bring it in on 5/15/2010 because it had been out for only half the length of the storm. I monitored the hail pad from 5/15 to 6/10 when the first new storm seemed imminent. A lot of rice sized hail occurred sometime in that period that I did not personally observed, nor did I know the date. So the hail pad represents approximately the total hail that fell from 5/15 until 6/10. Perhaps 100 1/4" hail dents were pretty much annealed out by the rice sized hail that fell subsequently. 1/4" Pea Size Rice Rice Hard|Soft|White Ice 3 1min no damage Continuous False Same time as smaller hail vertical 1411
6/10/2010 6:10 PM Hail and rain started together but hail didn't last. Rain was over by 5:50 PM. No hits on my new hail pad. I replaced my old pad which had sustained some pits beginning May 15 and then followed by more that I did not observe. That pad was retrieved this morning in anticipation of a hail storm and is dated 5/15/2010-6/10/2010. Note added 6/11: there were three hard hail strikes and about 144 rain dents in the pad, which I did not collect. Added note 8:41 PM. More hail occurred on new pad on hail storm reported separately for 6:10 PM by my wife. Hits not counted. Separate report will be filled tomorrow with just the new strikes. 1/4" Pea Size Rice Rice Hard|Mixed 2 1min no damage Intermittent True Same time as rain 0
6/11/2010 6:10 PM I'll count the indentations in the morning. The main thing that sometime in the afternoon there was a heavy rainstorm that produced 0.73" in the rain gauge. My wife came home later and observed a 2-minute hail storm that I later saw caused rice-sized indentations in the hail pad, which I left in place. NA Rice Rice Hard 2 1min no damage Intermittent False
6/12/2010 10:20 AM I left the hail pad out on 6/12 after it had been hit by approximately 10 pea-sized hail stones the day before. 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Mixed|White Ice 1 False Same time as rain 10 4
1/1/0001 12:00 AM I submitted the pad that sustained about 10 pea-sized hits at an unknown time. I left the pad out to conserve the pad and discovered at 7:00 AM the 14th that it had been hit the day before at an unknown time (6/13) by about 2000 tiny tiny rice-sized stones. 1/4" Pea Size Rice Rice Hard no damage False 1382
7/4/2010 8:10 PM Owner was away for 2 weeks. Housesitter collected hail pads and replaced them after two storms. She did not record times of rainfall. Times given are estimated from neighbor's automatic weather station 1/2 mile east. (KCOGOLDE14). That station showed .07 in precip. between 3:00 and 3:45 PM. A bigger storm added .17 in between 8:10 and 9:30 PM for a total of 0.24 in. Upon returning from a trip on 07/20, I found .17 in in the rain gauge. From comparison with nearby stations, I estimate that my rain gauge should have seen .21 in of precipitation in that period. It just shows how highly variable front range weather is. 1/4" Pea Size 1/4" Pea Size Rice Hard|Mixed True 1344
1/1/0001 12:00 AM small, soft hail, but lots of it it was another difficult count because there would be little circles of tiny dots together, which probably all came from the same hail stone, but there were a number of rogue tiny dots. 1/4" Pea Size Rice Rice Soft False 432
8/6/2010 3:14 PM Very hard rain accompanied by hail. 1/4" Pea Size 1/4" Pea Size Rice Hard|Soft|Mixed|White Ice 7 2min no damage Intermittent True After rain Same time as smaller hail 10-20 1728 0.25
1/1/0001 12:00 AM I did not observe this hail storm. There was .58 in of moisture in the rain gauge when I checked it at 8PM on Monday, 8.16, and it had not increased when I collected the hail pad and observed the rain gauge Tuesday morning at 7 AM. 1/4" Pea Size Rice Rice Hard|Soft|Mixed no damage True 357 .5
8/27/2010 1:00 PM Hail was not observed in person. The hail must have been very soft. The rain storm began at 1:00 PM and ended 2:00 PM according to the neighbors' weather station 1/2 mile east. 1/4" Pea Size 1/4" Pea Size Rice Soft no damage True 576 0.4
1/1/0001 12:00 AM Hail pad was observed and had about 50 strikes. I don't know the time of the storm, and I am continuing to leave the hail pad out for another hail storm. 1/4" Pea Size Rice Rice Hard|Soft no damage False 50 1.5
1/1/0001 12:00 AM I did not observe the storm, which probably happened on 9/9/2010. Hail pad was left out with about 10 hard hail hits and about 60 soft hail hits. Note added 10/9/10 when I retired the pad. There was a trace of graupel yesterday afternoon that did not detectably alter the hail pad. All of the soft dents in the pad are from the accumulation of rain that fell on the pad between 8/28/2010, 7 AM, and 10/9/2010, when it was collected. 1/4" Pea Size 1/4" Pea Size Rice Hard|Soft no damage False 70 2