Station Overview Station Location
Station Number CO-BO-22 Latitude 40.1869
Station Name Allens Park 1.5 ESE Longitude -105.5002
County Boulder Elevation (ft) 8455



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 2.84 31 0.75 24 2.09 7 2 5 5 4.5 3 5
Nov 09 1.56 0.64 32 0.00 27 0.64 5 2 0 5 0.0 0 10
Dec 09 1.32 1.43 31 0.19 16 1.24 15 5 1 3 0.0 0 12
Jan 10 1.25 0.43 31 0.36 27 0.07 4 1 3 6 0.0 0 20
Feb 10 1.25 0.89 28 0.33 25 0.56 3 1 6 6 4.7 3 21
March 10 2.43 3.21 31 0.67 27 2.54 4 2 6 3 2.1 3 20
April 10 2.96 2.91 30 2.47 25 0.44 5 2 6 6 6.5 3 8
May 10 2.77 3.38 30 0.89 23 2.49 7 2 4 5 1.5 1 1
June 10 1.93 2.63 30 0.00 23 2.63 7 1 0 3 0.0 0 0
July 10 2.29 3.03 31 2.78 21 0.25 10 2 10 4 0.0 0 0
Aug 10 2.38 3.54 31 1.65 25 1.89 6 2 4 4 0.0 0 0
Sept 10 1.82 0.26 29 0.26 29 0.00 0 0 2 2 0.0 0 0
Water Year Totals: 23.39" 25.19" 365 days 10.35" 292 14.84" 73 days 22 47 days 52 days 19.3" 13 days 97 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 0.03
10/2/2009 T
10/3/2009 0.00
10/4/2009 T
10/5/2009 0.11
10/6/2009 T
10/7/2009 0.00
10/8/2009 **
10/9/2009 **
10/10/2009 **
10/11/2009 **
10/12/2009 0.51
10/13/2009 0.00
10/14/2009 T
10/15/2009 0.13
10/16/2009 0.00
10/17/2009 0.00
10/18/2009 0.00
10/19/2009 0.00
10/20/2009 T
10/21/2009 0.34
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.00
10/25/2009 0.00
10/26/2009 0.14
10/27/2009 0.00
10/28/2009 **
10/29/2009 1.58
10/30/2009 0.00
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 **
11/15/2009 **
11/16/2009 M
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 T
11/23/2009 T
11/24/2009 T
11/25/2009 0.00
11/26/2009 0.00
11/27/2009 0.00
11/28/2009 0.00
11/29/2009 T
11/30/2009 0.00
12/1/2009 0.00
12/2/2009 **
12/3/2009 0.15
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 **
12/7/2009 0.29
12/8/2009 **
12/9/2009 0.39
12/10/2009 0.00
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 T
12/14/2009 0.19
12/15/2009 T
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 **
12/24/2009 0.34
12/25/2009 **
12/26/2009 **
12/27/2009 **
12/28/2009 **
12/29/2009 **
12/30/2009 **
12/31/2009 0.07
Day of YearDaily PrcpMultiday Prcp
1/1/2010 **
1/2/2010 **
1/3/2010 **
1/4/2010 0.07
1/5/2010 0.00
1/6/2010 T
1/7/2010 0.25
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 T
1/21/2010 T
1/22/2010 T
1/23/2010 0.00
1/24/2010 T
1/25/2010 T
1/26/2010 0.00
1/27/2010 0.00
1/28/2010 0.10
1/29/2010 0.01
1/30/2010 0.00
1/31/2010 0.00
2/1/2010 T
2/2/2010 T
2/3/2010 0.00
2/4/2010 0.05
2/5/2010 0.00
2/6/2010 0.00
2/7/2010 T
2/8/2010 0.07
2/9/2010 0.01
2/10/2010 0.00
2/11/2010 0.00
2/12/2010 T
2/13/2010 T
2/14/2010 0.02
2/15/2010 0.00
2/16/2010 0.00
2/17/2010 0.00
2/18/2010 T
2/19/2010 0.14
2/20/2010 **
2/21/2010 **
2/22/2010 0.56
2/23/2010 0.00
2/24/2010 0.00
2/25/2010 0.00
2/26/2010 0.04
2/27/2010 0.00
2/28/2010 0.00
3/1/2010 0.13
3/2/2010 T
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.00
3/6/2010 T
3/7/2010 0.00
3/8/2010 T
3/9/2010 0.01
3/10/2010 0.02
3/11/2010 0.15
3/12/2010 0.00
3/13/2010 0.00
3/14/2010 0.00
3/15/2010 0.09
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 **
3/20/2010 0.94
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 **
3/24/2010 1.60
3/25/2010 0.00
3/26/2010 0.00
3/27/2010 0.27
3/28/2010 0.00
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 T
4/4/2010 **
4/5/2010 0.25
4/6/2010 **
4/7/2010 **
4/8/2010 0.19
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 0.00
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.09
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.92
4/23/2010 0.25
4/24/2010 0.60
4/25/2010 T
4/26/2010 0.18
4/27/2010 T
4/28/2010 0.00
4/29/2010 0.43
4/30/2010 T
5/1/2010 0.04
5/2/2010 T
5/3/2010 0.18
5/4/2010 0.00
5/5/2010 T
5/6/2010 T
5/7/2010 0.43
5/8/2010 0.00
5/9/2010 0.00
5/10/2010 **
5/11/2010 **
5/12/2010 **
5/13/2010 **
5/14/2010 1.96
5/15/2010 **
5/16/2010 0.53
5/17/2010 0.00
5/18/2010 0.00
5/19/2010 0.24
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 T
5/26/2010 0.00
5/27/2010 0.00
5/28/2010 0.00
5/29/2010
5/30/2010 T
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 0.00
6/6/2010 0.00
6/7/2010 0.00
6/8/2010 0.00
6/9/2010 **
6/10/2010 **
6/11/2010 **
6/12/2010 **
6/13/2010 **
6/14/2010 **
6/15/2010 2.63
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 T
6/22/2010 0.00
6/23/2010 0.00
6/24/2010 0.00
6/25/2010 0.00
6/26/2010 0.00
6/27/2010 T
6/28/2010 T
6/29/2010 0.00
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.23
7/3/2010 **
7/4/2010 **
7/5/2010 0.20
7/6/2010 0.00
7/7/2010 0.15
7/8/2010 0.53
7/9/2010 0.06
7/10/2010 T
7/11/2010 T
7/12/2010 T
7/13/2010 0.00
7/14/2010 T
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.37
7/20/2010 0.01
7/21/2010 0.08
7/22/2010 **
7/23/2010 **
7/24/2010 **
7/25/2010 **
7/26/2010 **
7/27/2010 **
7/28/2010 0.05
7/29/2010 0.19
7/30/2010 1.08
7/31/2010 0.08
8/1/2010 0.00
8/2/2010 1.20
8/3/2010 **
8/4/2010 **
8/5/2010 1.77
8/6/2010 **
8/7/2010 **
8/8/2010 0.12
8/9/2010 0.00
8/10/2010 0.32
8/11/2010 0.00
8/12/2010 T
8/13/2010 0.00
8/14/2010 0.00
8/15/2010 0.00
8/16/2010 0.00
8/17/2010 0.01
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.12
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.00
8/24/2010 T
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 T
8/29/2010 0.00
8/30/2010 T
8/31/2010 0.00
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 T
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.15
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.00
9/21/2010 T
9/22/2010 0.00
9/23/2010 0.11
9/24/2010
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.00
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.03 M M M M Squalls of rain and a little snow.
10/2/2009 7:00 AM T T M M M Some downslope snowflakes.
10/3/2009 7:00 AM 0.00 0.0 M M M
10/4/2009 7:00 AM T 0.0 M M M
10/5/2009 7:00 AM 0.11 0.5 M 0.0 M
10/6/2009 7:00 AM T T M 0.0 M Downslope flurries.
10/7/2009 7:00 AM 0.00 0.0 M 0.0 M
10/13/2009 7:00 AM 0.00 0.0 M T M
10/14/2009 7:00 AM T 0.0 M 0.0 M Some downslope rain drops.
10/15/2009 7:00 AM 0.13 0.0 M 0.0 M Light downslope rain.
10/16/2009 7:00 AM 0.00 0.0 M 0.0 M There may have been a trace of rain.
10/17/2009 7:00 AM 0.00 0.0 M 0.0 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 7:00 AM T 0.0 M 0.0 M Few raindrops AM of the 19th.
10/21/2009 3:00 PM 0.34 2.5 M 2.0 M Please note that reading was at 3 PM, not 7 AM. Only about 0.05" of moisture fell after 7 AM.
10/22/2009 7:00 AM 0.00 0.0 M 1.0 M Please note that yesterday's reading was at 3 PM, otherwise there would have been a little precip reported today.
10/23/2009 7:00 AM 0.00 0.0 M 1.0 M
10/24/2009 7:00 AM 0.00 0.0 M T M
10/25/2009 7:00 AM 0.00 0.0 M M M
10/26/2009 7:00 AM 0.14 1.5 M 2.0 M
10/27/2009 7:00 AM 0.00 0.0 M 0.0 M
10/30/2009 7:00 AM 0.00 0.0 M 18.0 M
10/31/2009 7:00 AM 0.00 0.0 M M M
11/1/2009 7:00 AM 0.00 0.0 M M M
11/2/2009 7:00 AM 0.00 0.0 M M M
11/3/2009 7:00 AM 0.00 0.0 M 9.0 M
11/4/2009 7:00 AM 0.00 0.0 M M M
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM 0.00 0.0 M M M
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.00 0.0 M M M
11/12/2009 7:00 AM 0.00 0.0 M M M
11/13/2009 7:00 AM T T M T M Very light snow around dawn.
11/17/2009 7:00 AM 0.00 0.0 M 6.5 M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.00 0.0 M M M
11/20/2009 7:00 AM 0.00 0.0 M 4.5 M
11/21/2009 7:00 AM 0.00 0.0 M 4.5 M
11/22/2009 7:00 AM T T M 4.0 M Downslope flakes overnight.
11/23/2009 7:00 AM T T M 4.0 M Downslope flurries overnight.
11/24/2009 7:00 AM T T M 3.5 M Few downslope flakes.
11/25/2009 7:00 AM 0.00 0.0 M 3.5 M
11/26/2009 7:00 AM 0.00 0.0 M M M
11/27/2009 7:00 AM 0.00 0.0 M M M
11/28/2009 7:00 AM 0.00 0.0 M M M
11/29/2009 7:00 AM T T M 2.5 M Light snow overnight.
11/30/2009 7:00 AM 0.00 0.0 M 2.5 M
12/1/2009 7:00 AM 0.00 0.0 M 2.5 M
12/4/2009 7:00 AM 0.00 0.0 M 5.0 M
12/5/2009 7:00 AM 0.00 0.0 M 5.0 M
12/10/2009 7:00 AM 0.00 0.0 M M M
12/11/2009 7:00 AM 0.00 0.0 M 9.0 M
12/12/2009 7:00 AM 0.00 0.0 M 9.0 M
12/13/2009 7:00 AM T T M 9.0 M Few flakes during the day on the 12th, flurries overnight.
12/14/2009 7:00 AM 0.19 M M 11.0 M Downslope snow most of the day on the 13th.
12/15/2009 7:00 AM T T M 11.0 M Few downslope flakes.
12/16/2009 7:00 AM 0.00 0.0 M 11.0 M
12/17/2009 7:00 AM 0.00 0.0 M M M There might have been a flake or two of downslope snow overnight.
12/18/2009 7:00 AM T T M 9.5 M Downslope flakes and flurries.
12/19/2009 7:00 AM 0.00 0.0 M 9.5 M
12/20/2009 7:00 AM 0.00 0.0 M M M
12/21/2009 7:00 AM 0.00 0.0 M M M
12/22/2009 7:00 AM 0.00 0.0 M 9.0 M
1/5/2010 7:00 AM 0.00 0.0 M 11.5 M
1/6/2010 7:00 AM T T M 11.5 M Downslope flurries.
1/7/2010 7:00 AM 0.25 M M 14.0 M About 3" of nes snow, no direct measurement made.
1/8/2010 7:00 AM 0.00 0.0 M 13.5 M
1/9/2010 7:00 AM 0.00 0.0 M 13.5 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 M M
1/12/2010 7:00 AM 0.00 0.0 M 12.0 M
1/13/2010 7:00 AM 0.00 0.0 M 12.0 M
1/14/2010 7:00 AM 0.00 0.0 M M 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 11.5 M
1/17/2010 7:00 AM 0.00 0.0 M M M There may have been a flake or two overnight, but I missed them.
1/18/2010 7:00 AM 0.00 0.0 M M M
1/19/2010 7:00 AM 0.00 0.0 M 10.5 M
1/20/2010 7:00 AM T T M 11.0 M Downslope flurries.
1/21/2010 7:00 AM T T M M M Few flurries, no accumulation.
1/22/2010 7:00 AM T T M 10.5 M Downslope flakes.
1/23/2010 7:00 AM 0.00 0.0 M 10.5 M
1/24/2010 7:00 AM T T M 10.5 M Downslope flakes.
1/25/2010 7:00 AM T T M 10.5 M Few downslope flakes.
1/26/2010 7:00 AM 0.00 0.0 M 10.5 M
1/27/2010 7:00 AM 0.00 0.0 M 10.5 M There may have been a few downslope flakes.
1/28/2010 7:00 AM 0.10 M M 11.0 M
1/29/2010 7:00 AM 0.01 M M 11.0 M
1/30/2010 7:00 AM 0.00 0.0 M 11.0 M
1/31/2010 7:00 AM 0.00 0.0 M 11.0 M
2/1/2010 7:00 AM T T M 11.0 M A few downslope flakes overnight.
2/2/2010 7:00 AM T T M 11.0 M A few downslope flakes.
2/3/2010 7:00 AM 0.00 0.0 M 11.0 M
2/4/2010 7:00 AM 0.05 M M M M
2/5/2010 7:00 AM 0.00 0.0 M 11.0 M
2/6/2010 7:00 AM 0.00 0.0 M 11.0 M
2/7/2010 7:00 AM T T M 11.0 M Very light snow before dawn.
2/8/2010 7:00 AM 0.07 2.5 M 13.5 M Very dry, powdery snow.
2/9/2010 7:00 AM 0.01 M M 14.0 M Light snow muchof the day yesterday (on the 8th).
2/10/2010 7:00 AM 0.00 0.0 M 14.0 M
2/11/2010 7:00 AM 0.00 0.0 M M M
2/12/2010 7:00 AM T T M M M Just a few downslope flakes.
2/13/2010 7:00 AM T T M 11.5 M DOwnslope flurries overnight.
2/14/2010 7:00 AM 0.02 0.2 M 11.5 M
2/15/2010 7:00 AM 0.00 0.0 M 11.5 M
2/16/2010 7:00 AM 0.00 0.0 M 11.5 M
2/17/2010 7:00 AM 0.00 0.0 M 11.5 M
2/18/2010 7:00 AM T T M 11.5 M Just a few upslope flakes.
2/19/2010 7:00 AM 0.14 2.0 M 13.5 M
2/23/2010 7:00 AM 0.00 0.0 M 17.5 M
2/24/2010 7:00 AM 0.00 0.0 M 17.0 M
2/25/2010 7:00 AM 0.00 0.0 M 17.0 M
2/26/2010 7:00 AM 0.04 M M 15.5 M
2/27/2010 7:00 AM 0.00 0.0 M 15.5 M
2/28/2010 7:00 AM 0.00 0.0 M M M
3/1/2010 7:00 AM 0.13 M M 16.0 M All precipitation fell on February 28th, but after 7:00 AM.
3/2/2010 7:00 AM T T M 16.0 M Few flurries afternoon of the 1st.
3/3/2010 7:00 AM 0.00 0.0 M 15.5 M
3/4/2010 7:00 AM 0.00 0.0 M M M
3/5/2010 7:00 AM 0.00 0.0 M M M
3/6/2010 7:00 AM T T M 15.0 M Downslope snow flurries.
3/7/2010 7:00 AM 0.00 0.0 M 15.0 M
3/8/2010 7:00 AM T T M 15.0 M Few flakes
3/9/2010 7:00 AM 0.01 0.1 M 14.0 M
3/10/2010 7:00 AM 0.02 M M 14.0 M
3/11/2010 7:00 AM 0.15 M M 16.0 M
3/12/2010 7:00 AM 0.00 0.0 M 15.5 M
3/13/2010 7:00 AM 0.00 0.0 M 15.5 M
3/14/2010 7:00 AM 0.00 0.0 M 15.5 M
3/15/2010 7:00 AM 0.09 1.0 M M M
3/16/2010 7:00 AM 0.00 0.0 M M 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 M M
3/21/2010 7:00 AM 0.00 0.0 M 21.0 M
3/22/2010 7:00 AM 0.00 0.0 M 21.0 M
3/25/2010 7:00 AM 0.00 0.0 M 31.0 M Depth of snow on the ground is estimated. Snow stake is 31 inches high and it was completely buried.
3/26/2010 7:00 AM 0.00 0.0 M 31.0 M Total depth of snow estimated as snow stake is buried and is 31 inches high.
3/27/2010 7:00 AM 0.27 1.0 M 31.0 M Depth of snow on ground is at least 31 inches as snow stake is 31 inches tall and is buried.
3/28/2010 7:00 AM 0.00 0.0 M 31.0 M Depth of snow is at least 31 inches as the snow stake is buried and it is about 31 inches tall.
3/29/2010 7:00 AM 0.00 0.0 M 28.0 M
3/30/2010 7:00 AM 0.00 0.0 M 27.0 M
3/31/2010 7:00 AM 0.00 0.0 M M M
4/1/2010 7:00 AM 0.00 0.0 M M M
4/2/2010 7:00 AM T T M 21.0 M Upslope/downslope leaves a trace.
4/3/2010 7:00 AM T T M 21.0 M Downslope flakes.
4/9/2010 7:00 AM 0.00 0.0 M 20.0 M
4/10/2010 7:00 AM 0.00 0.0 M 20.0 M
4/11/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 7:00 AM 0.00 0.0 M 17.0 M Snow cover melting, lots of open spaces.
4/13/2010 7:00 AM T T M M M Downslope flurries and flakes.
4/14/2010 7:00 AM 0.00 0.0 M M M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:00 AM 0.00 0.0 M M M
4/17/2010 7:00 AM 0.00 0.0 M M M
4/18/2010 7:00 AM 0.09 M M M M
4/19/2010 7:00 AM 0.00 0.0 M 6.0 M Snow quite patchy in area.
4/20/2010 7:00 AM 0.00 0.0 M 6.0 M Snow cover very patchy.
4/21/2010 7:00 AM 0.00 0.0 M M M
4/22/2010 7:00 AM 0.92 0.5 M T M Most precipitation fell overnight as rain.
4/23/2010 1:00 PM 0.25 3.5 M M M
4/24/2010 7:00 AM 0.60 M M M M Heavy, wet snowfall.
4/25/2010 7:00 AM T T M M M Just a few flakes.
4/26/2010 7:00 AM 0.18 2.5 M M M Snow overnight with cold front.
4/27/2010 7:00 AM T T M 3.5 M One or two flakes.
4/28/2010 7:00 AM 0.00 0.0 M M M
4/29/2010 7:00 AM 0.43 M M M M Rain and wet snow. Contained dust from Arizona/New Mexico.
4/30/2010 7:00 AM T M M M M Few flakes.
5/1/2010 7:00 AM 0.04 M M M M Snow squalls.
5/2/2010 7:00 AM T T M M M Downslope flurries.
5/3/2010 7:00 AM 0.18 1.5 M M M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM T T M M M Just a few downslope raindrops and wet snowflakes.
5/6/2010 7:00 AM T 0.0 M M M Drops opf rain, not snow.
5/7/2010 7:00 AM 0.43 M M 0.5 M
5/8/2010 7:00 AM 0.00 0.0 M M M Snowdrifts still scattered around.
5/9/2010 7:00 AM 0.00 0.0 M 0.0 M Many snow drifts still lying in the forest and in other shelterd locations.
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM 0.00 0.0 M T M Lots of snow still in the forests.
5/19/2010 7:00 AM 0.24 0.0 M 0.0 M Thunderstorms, some with soft hail.
5/20/2010 7:00 AM 0.00 0.0 M 0.0 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 0.0 M
5/24/2010 7:00 AM 0.00 0.0 M 0.0 M
5/25/2010 7:00 AM T T M 0.0 M Downslope snow squalls and flurries. Strong winds.
5/26/2010 7:00 AM 0.00 0.0 M 0.0 M
5/27/2010 7:00 AM 0.00 0.0 M 0.0 M
5/28/2010 7:00 AM 0.00 0.0 M 0.0 M
5/30/2010 7:00 AM T 0.0 M 0.0 M Just a few drops.
5/31/2010 7:00 AM 0.00 0.0 M 0.0 M
6/1/2010 7:00 AM 0.00 0.0 M M M
6/2/2010 7:00 AM 0.00 0.0 M M M
6/3/2010 7:00 AM 0.00 0.0 M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM 0.00 0.0 M M M
6/6/2010 7:00 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 0.00 0.0 M M M
6/16/2010 7:00 AM 0.00 0.0 M M M
6/17/2010 7:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 7:00 AM 0.00 0.0 M M M
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 7:00 AM T M M M M A few drops afternoon of the 20th, and only a few drops.
6/22/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.00 0.0 M M M
6/24/2010 7:00 AM 0.00 0.0 M M 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 7:00 AM T M M M M Just a few drops from afternoon thundershowers.
6/28/2010 7:00 AM T M M M M Just a few drops but heard thunder.
6/29/2010 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 There may have been a few drops from dry squalls in the evening.
7/2/2010 7:00 AM 0.23 M M M M Rain and thundershowers in the evening of the 1st.
7/6/2010 7:00 AM 0.00 0.0 M M M
7/7/2010 7:00 AM 0.15 M M M M Some light rain and drizzle overnight, but most precip fell in thunderstorms about 9:00 PM last night.
7/8/2010 7:00 AM 0.53 M M M M Thunderstorms and steady rain overnight. Some washing, so it rained hard at times.
7/9/2010 7:00 AM 0.06 M M M M
7/10/2010 7:00 AM T M M M M Few drops.
7/11/2010 7:00 AM T M M M M Few afternoon drops on the 10th.
7/12/2010 7:00 AM T M M M M Thunder, but only a sprinkle.
7/13/2010 7:00 AM 0.00 0.0 M M M
7/14/2010 7:00 AM T M M M M Light shower, no thunder.
7/15/2010 7:00 AM 0.00 0.0 M M M Showers around, none at station.
7/16/2010 7:00 AM 0.00 0.0 M M M A virtually cloudless day.
7/17/2010 7:00 AM 0.00 0.0 M M M
7/18/2010 7:00 AM 0.00 0.0 M M M
7/19/2010 7:00 AM 0.37 M M M M Thundershower. This is a correct reading.
7/20/2010 7:00 AM 0.01 M M M M
7/21/2010 7:00 AM 0.08 M M M M
7/29/2010 7:00 AM 0.19 M M M M Thunderstorms. Very active storm north and northeast of station.
7/30/2010 7:00 AM 1.08 M M M M Beautiful thunderstorm!
7/31/2010 7:00 AM 0.08 M M M M Thunderstorms.
8/1/2010 7:00 AM 0.00 0.0 M M M
8/2/2010 7:00 AM 1.20 M M M M Intense thunderstorm about 2 PM on August 1st. Small hail not larger than pea sized. 1.11" fell in initial storm and another 0.09" as light rain following. Many close lightning strikes.
8/9/2010 7:00 AM 0.00 0.0 M M M Might have been a trace.
8/10/2010 7:00 AM 0.32 M M M M Very active thunderstorm afternoon of the 9th.
8/11/2010 7:00 AM 0.00 0.0 M M M
8/12/2010 7:00 AM T M M M M
8/13/2010 7:00 AM 0.00 0.0 M M M
8/14/2010 7:00 AM 0.00 0.0 M M M
8/15/2010 7:00 AM 0.00 0.0 M M M
8/16/2010 7:00 AM 0.00 0.0 M M M
8/17/2010 7:00 AM 0.01 M M M M
8/18/2010 7:00 AM 0.00 0.0 M M M
8/19/2010 7:00 AM 0.00 0.0 M M M
8/20/2010 7:00 AM 0.12 M M M M
8/21/2010 7:00 AM 0.00 0.0 M M M
8/22/2010 7:00 AM 0.00 0.0 M M M
8/23/2010 7:00 AM 0.00 0.0 M M M
8/24/2010 7:00 AM T M M M M Few drops and sprinkles.
8/25/2010 7:00 AM 0.00 0.0 M M M
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 7:00 AM 0.00 0.0 M M M
8/28/2010 7:00 AM T M M M M
8/29/2010 7:00 AM 0.00 0.0 M M M
8/30/2010 7:00 AM T M M M M
8/31/2010 7:00 AM 0.00 0.0 M M M
9/1/2010 7:00 AM 0.00 0.0 M M M
9/2/2010 7:00 AM 0.00 0.0 M M M
9/3/2010 7:00 AM 0.00 0.0 M M M
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM T M M M M Few drops at night. Only a sprinkle.
9/7/2010 7:00 AM 0.00 0.0 M M M Very windy on the 6th.
9/8/2010 7:00 AM 0.00 0.0 M M M Dense smoke at times from the Fourmile Canyon fire.
9/9/2010 7:00 AM 0.15 M M M M
9/10/2010 7:00 AM 0.00 0.0 M M 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 M M
9/13/2010 7:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 7:00 AM 0.00 0.0 M M M
9/16/2010 7:00 AM 0.00 0.0 M M M
9/17/2010 7:00 AM 0.00 0.0 M M M
9/18/2010 7:00 AM 0.00 0.0 M M M
9/19/2010 7:00 AM 0.00 0.0 M M M
9/20/2010 7:00 AM 0.00 0.0 M M M
9/21/2010 7:00 AM T M M M M Squall afternoon of the 20th.
9/22/2010 7:00 AM 0.00 0.0 M M M
9/23/2010 7:00 AM 0.11 M M M M Some light rain and showers. A few inches of fresh snow visible above timerbline.
9/25/2010 7:00 AM 0.00 0.0 M M M
9/26/2010 7:00 AM 0.00 0.0 M M M
9/27/2010 7:00 AM 0.00 0.0 M M M
9/28/2010 7:00 AM 0.00 0.0 M M M
9/29/2010 7:00 AM 0.00 0.0 M M M
9/30/2010 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
10/8/2009 10/12/2009 7:00 AM 5 0.51 T M Some precipitation and 1.5" of snow on the 8th. 4.5" of snow fell overnight the 9th. A little downslope precipitation on the 11th and overnight, over by 7 AM on the 12th.
10/28/2009 10/29/2009 7:00 AM 2 1.58 19.0 M Total of 23 inches of snow. Much of it fell before 7 AM on the 28th, perhaps about 5" after 7 AM. Snow had essentially ended by 5 PM on the 28th.
11/14/2009 11/16/2009 7:00 AM 3 0.64 6.5 M About 0.10" of precipitation fell on Friday the 13th (reported 7 AM on the 14th). Most fell Saturday afternoon and evening (reported 7 AM on the 15th). A little, maybe 0.03"-0.04" fell as flurries ont he afteroon of the 15th (reported 7 AM on the 16th).
11/15/2009 11/16/2009 7:00 AM 2 M M M About 0.10" moisture fell on Friday the 13th (reported 7 AM on the 14th. Most precipitation fell afternoon and overnight on the 14th (reported 7 AM on the 15th. A few hundredths of an inch fell as snow showers afternoon of the 15th (reported 7 AM on the 16th.
12/2/2009 12/03/2009 7:00 AM 2 0.15 M M Most precipitation had fallen by 7:00 AM on the 2nd. Only a little, maybe even a trace after that.
12/6/2009 12/07/2009 3:00 PM 2 0.29 9.0 M
12/8/2009 12/09/2009 7:00 AM 2 0.39 M M
12/23/2009 12/24/2009 7:00 AM 2 0.34 16.0 M
12/25/2009 12/31/2009 11:59 PM 7 0.07 M M
1/1/2010 1/04/2010 7:00 AM 4 0.07 M M All precuiptation may have fallen on January 3rd.
2/20/2010 2/22/2010 7:00 AM 3 0.56 17.5 M Measurable precipitation fell as snow on each day of this period, on the 20th, the 21st and the 22nd.
3/19/2010 3/20/2010 7:00 AM 2 0.94 M M
3/23/2010 3/24/2010 7:00 AM 2 1.60 31.0 M Total of 24 inches of snow, most fell between 7 AM on the 23rd and 7AM on the 24th. Depth on the ground is estimated as the snow stake was completely covered.
4/4/2010 4/05/2010 7:00 AM 2 0.25 21.5 M Measurable precipitation as snow from downslope conditions fell on both days of this period.
4/6/2010 4/08/2010 7:00 AM 3 0.19 21.0 M Precipitation came as downslope flurries and squalls on each day during this period.
5/10/2010 5/14/2010 2:00 PM 5 1.96 8.0 M Unsettled. Heavy snow 11th and 12th. Some snow 13th. I was out of town the 10th through the 13th. Estimated snowfall 15 - 18 inches total during this period, most afternoon of the 11th and overnight into the 12th.
5/15/2010 5/16/2010 7:00 AM 2 0.53 M M
6/9/2010 6/15/2010 7:00 AM 7 2.63 M M Out of town and missed the rain.
7/3/2010 7/05/2010 7:00 AM 3 0.20 M M
7/22/2010 7/28/2010 7:00 AM 7 0.05 M M
8/3/2010 8/05/2010 5:00 PM 3 1.77 M M Rain probably fell every day this period.
8/6/2010 8/08/2010 7:00 AM 3 0.12 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