Station Overview Station Location
Station Number CO-JF-201 Latitude 39.5769
Station Name Littleton 8.2 WSW Longitude -105.1635
County Jefferson Elevation (ft) 6053



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 11 1.46 0.57 24 0.57 24 0.00 0 0 2 0 9.1 3 0
Nov 11 1.26 0.01 9 0.01 9 0.00 0 0 1 0 7.0 2 0
Dec 11 0.94 0.00 6 0.00 6 0.00 0 0 0 0 30.4 6 5
Jan 12 0.66 0.04 13 0.04 13 0.00 0 0 2 0 1.9 3 0
Feb 12 0.76 0.03 9 0.03 9 0.00 0 0 2 0 38.8 8 0
March 12 2.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 12 2.56 0.59 7 0.59 7 0.00 0 0 3 0 4.3 2 0
May 12 2.59 2.15 24 2.15 24 0.00 0 0 8 0 0.0 0 0
June 12 2.27 1.59 18 1.59 18 0.00 0 0 6 1 0.0 0 0
July 12 1.85 1.60 18 1.60 18 0.00 0 0 6 5 0.0 0 0
Aug 12 2.40 0.03 8 0.03 8 0.00 0 0 1 0 0.0 0 0
Sept 12 1.41 2.27 15 2.27 15 0.00 0 0 5 0 0.0 0 0
Water Year Totals: 20.39" 8.88" 151 days 8.88" 151 0.00" 0 days 0 36 days 6 days 91.5" 24 days 5 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
10/1/2011 0.00
10/2/2011 0.00
10/3/2011 0.00
10/4/2011 0.00
10/5/2011 0.00
10/6/2011 0.00
10/7/2011
10/8/2011 0.48
10/9/2011 0.00
10/10/2011 0.00
10/11/2011
10/12/2011 0.00
10/13/2011 0.00
10/14/2011 0.00
10/15/2011 0.00
10/16/2011
10/17/2011 0.00
10/18/2011 0.09
10/19/2011 0.00
10/20/2011 0.00
10/21/2011 0.00
10/22/2011 0.00
10/23/2011
10/24/2011
10/25/2011 0.00
10/26/2011 M
10/27/2011 M
10/28/2011 0.00
10/29/2011 0.00
10/30/2011 0.00
10/31/2011 0.00
11/1/2011 0.00
11/2/2011 M
11/3/2011 M
11/4/2011 0.00
11/5/2011
11/6/2011 0.01
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011 0.00
11/20/2011
11/21/2011
11/22/2011 0.00
11/23/2011 0.00
11/24/2011 0.00
11/25/2011
11/26/2011
11/27/2011 0.00
11/28/2011
11/29/2011
11/30/2011 0.00
12/1/2011 M
12/2/2011 M
12/3/2011 M
12/4/2011
12/5/2011 M
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011 0.00
12/11/2011 0.00
12/12/2011
12/13/2011
12/14/2011
12/15/2011 0.00
12/16/2011 0.00
12/17/2011 0.00
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011 M
12/23/2011 M
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012 0.00
1/7/2012 0.00
1/8/2012
1/9/2012
1/10/2012
1/11/2012
1/12/2012
1/13/2012
1/14/2012 0.00
1/15/2012
1/16/2012
1/17/2012 M
1/18/2012 0.00
1/19/2012 0.00
1/20/2012
1/21/2012 0.00
1/22/2012
1/23/2012
1/24/2012 0.00
1/25/2012 0.01
1/26/2012 0.00
1/27/2012 0.00
1/28/2012 0.03
1/29/2012
1/30/2012 0.00
1/31/2012 0.00
2/1/2012 0.00
2/2/2012 0.00
2/3/2012 M
2/4/2012 M
2/5/2012 M
2/6/2012 0.00
2/7/2012 M
2/8/2012 M
2/9/2012
2/10/2012
2/11/2012
2/12/2012 0.00
2/13/2012 0.02
2/14/2012 0.00
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012 0.01
2/21/2012 0.00
2/22/2012
2/23/2012 M
2/24/2012
2/25/2012 0.00
2/26/2012
2/27/2012
2/28/2012
2/29/2012
3/1/2012
3/2/2012
3/3/2012
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012
3/25/2012
3/26/2012
3/27/2012
3/28/2012
3/29/2012
3/30/2012
3/31/2012
Day of YearDaily PrcpMultiday Prcp
4/1/2012
4/2/2012
4/3/2012
4/4/2012 M
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012
4/11/2012
4/12/2012 0.06
4/13/2012
4/14/2012
4/15/2012 M
4/16/2012 0.43
4/17/2012
4/18/2012 0.00
4/19/2012
4/20/2012
4/21/2012 0.00
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012 0.00
4/27/2012 0.10
4/28/2012
4/29/2012
4/30/2012 0.00
5/1/2012
5/2/2012
5/3/2012
5/4/2012
5/5/2012 0.00
5/6/2012 0.07
5/7/2012 0.46
5/8/2012 0.26
5/9/2012 0.00
5/10/2012 0.00
5/11/2012 0.00
5/12/2012 0.24
5/13/2012 0.15
5/14/2012 0.00
5/15/2012
5/16/2012 0.00
5/17/2012 0.00
5/18/2012 0.00
5/19/2012 0.06
5/20/2012 0.40
5/21/2012 0.00
5/22/2012 0.00
5/23/2012 0.00
5/24/2012 0.51
5/25/2012 0.00
5/26/2012 0.00
5/27/2012
5/28/2012 0.00
5/29/2012 0.00
5/30/2012 0.00
5/31/2012
6/1/2012
6/2/2012 0.00
6/3/2012 0.09
6/4/2012
6/5/2012 0.00
6/6/2012
6/7/2012 1.37
6/8/2012 0.02
6/9/2012 0.00
6/10/2012 0.00
6/11/2012
6/12/2012
6/13/2012 0.00
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.07
6/17/2012 T
6/18/2012 0.00
6/19/2012 0.00
6/20/2012 0.00
6/21/2012
6/22/2012 0.00
6/23/2012
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012 0.02
6/29/2012 0.02
6/30/2012
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012 T
7/3/2012 T
7/4/2012
7/5/2012
7/6/2012 0.03
7/7/2012 0.49
7/8/2012 0.62
7/9/2012 0.17
7/10/2012 0.01
7/11/2012 0.00
7/12/2012
7/13/2012 0.00
7/14/2012
7/15/2012 0.00
7/16/2012 T
7/17/2012 0.28
7/18/2012 T
7/19/2012 T
7/20/2012 0.00
7/21/2012 0.00
7/22/2012 0.00
7/23/2012 0.00
7/24/2012
7/25/2012
7/26/2012
7/27/2012
7/28/2012
7/29/2012
7/30/2012
7/31/2012
8/1/2012
8/2/2012
8/3/2012
8/4/2012
8/5/2012
8/6/2012
8/7/2012
8/8/2012
8/9/2012
8/10/2012
8/11/2012
8/12/2012
8/13/2012
8/14/2012
8/15/2012
8/16/2012
8/17/2012
8/18/2012
8/19/2012 0.00
8/20/2012 0.00
8/21/2012 0.00
8/22/2012 0.00
8/23/2012 0.03
8/24/2012
8/25/2012
8/26/2012
8/27/2012 0.00
8/28/2012
8/29/2012 0.00
8/30/2012 0.00
8/31/2012
9/1/2012
9/2/2012
9/3/2012
9/4/2012
9/5/2012
9/6/2012
9/7/2012
9/8/2012
9/9/2012
9/10/2012
9/11/2012 0.00
9/12/2012 0.64
9/13/2012 1.34
9/14/2012 0.00
9/15/2012 0.00
9/16/2012
9/17/2012
9/18/2012
9/19/2012 0.00
9/20/2012
9/21/2012
9/22/2012 0.00
9/23/2012 0.00
9/24/2012 0.00
9/25/2012 0.00
9/26/2012 0.19
9/27/2012 0.08
9/28/2012 0.02
9/29/2012 0.00
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 7:00 AM 0.00 0.0 M M M
10/2/2011 7:00 AM 0.00 0.0 M M M
10/3/2011 7:00 AM 0.00 0.0 M M M
10/4/2011 7:00 AM 0.00 0.0 M M M
10/5/2011 7:00 AM 0.00 0.0 M M M
10/6/2011 6:45 AM 0.00 0.0 M M M
10/8/2011 6:00 PM 0.48 0.6 M M M Right at rain-snow line during storm (6060 ft); Hiked 1 mi west to 7500 ft ~ 6" snow
10/9/2011 7:00 AM 0.00 0.0 M M M All yesterday's storm reported yesterday evening; this report is essentially the last 12 hours
10/10/2011 7:00 AM 0.00 0.0 M M M
10/12/2011 7:00 AM 0.00 0.0 M M M
10/13/2011 7:00 AM 0.00 0.0 M M M
10/14/2011 6:30 AM 0.00 0.0 M M M
10/15/2011 7:00 AM 0.00 0.0 M M M
10/17/2011 6:30 AM 0.00 0.0 M M M
10/18/2011 7:00 AM 0.09 M M M M
10/19/2011 6:30 AM 0.00 0.0 M M M
10/20/2011 7:00 AM 0.00 0.0 M M M
10/21/2011 6:30 AM 0.00 0.0 M M M
10/22/2011 7:00 AM 0.00 0.0 M M M
10/25/2011 6:30 AM 0.00 0.0 M M M
10/26/2011 6:30 AM M 4.8 M M M 0.29" of liquid ppt before switch to snow around 9 PM last night; Didnt have time to melt down snow but it is dense - would estimate 9:1 ratio. With that, would have 0.82" total moisture (estimate)
10/27/2011 7:00 AM M 3.7 M M M Storm snow total = 8.5"; 3.7" since yesterday's report; No time to get water equivalent
10/28/2011 6:15 AM 0.00 0.0 M M M
10/29/2011 7:00 AM 0.00 0.0 M M M
10/30/2011 7:00 AM 0.00 0.0 M M M
10/31/2011 7:00 AM 0.00 0.0 M M M
11/1/2011 6:30 AM 0.00 0.0 M M M
11/2/2011 6:30 AM M 6.0 M M M Snowfall is best estimate, considerable blowing & drifting made accurate measurement difficult; no time to calc water equiv; Snowing lightly at report time
11/3/2011 7:00 AM M 1.0 M M M 1.0" since last report; Storm total 7.0"
11/4/2011 6:30 AM 0.00 0.0 M M M
11/6/2011 6:30 AM 0.01 M M M M
11/19/2011 6:00 AM 0.00 0.0 M M M
11/22/2011 7:00 AM 0.00 0.0 M M M
11/23/2011 6:00 AM 0.00 0.0 M M M
11/24/2011 7:00 AM 0.00 0.0 M M M
11/27/2011 7:00 AM 0.00 0.0 M M M
11/30/2011 6:00 AM 0.00 0.0 M M M
12/1/2011 6:30 AM M 3.8 M 3.8 M
12/2/2011 7:00 AM M 3.2 M 7.0 M 7.0" storm total
12/3/2011 7:00 AM M 4.5 M 7.5 M
12/5/2011 7:00 AM M 3.6 M M M
12/10/2011 7:00 AM 0.00 0.0 M M M
12/11/2011 7:00 AM 0.00 0.0 M M M
12/15/2011 7:00 AM 0.00 0.0 M M M
12/16/2011 7:00 AM 0.00 0.0 M M M
12/17/2011 7:00 AM 0.00 0.0 M M M
12/22/2011 7:00 AM M 11.5 M 15.5 M
12/23/2011 7:00 AM M 3.8 M 18.0 M 3.8" since yesterdays report; 15.3" storm total
12/31/2011 7:00 AM 0.00 0.0 M M M
1/6/2012 7:00 AM 0.00 0.0 M M M
1/7/2012 6:00 AM 0.00 0.0 M M M
1/14/2012 7:00 AM 0.00 0.0 M M M
1/17/2012 7:00 AM M 1.5 M M M
1/18/2012 6:00 AM 0.00 0.0 M M M
1/19/2012 6:30 AM 0.00 0.0 M M M
1/21/2012 6:30 AM 0.00 0.0 M M M
1/24/2012 5:45 AM 0.00 0.0 M M M
1/25/2012 6:45 AM 0.01 0.1 M M M
1/26/2012 6:15 AM 0.00 0.0 M M M
1/27/2012 7:00 AM 0.00 0.0 M M M
1/28/2012 7:00 AM 0.03 0.3 M M M
1/30/2012 6:45 AM 0.00 0.0 M M M
1/31/2012 7:00 AM 0.00 0.0 M M M
2/1/2012 6:45 AM 0.00 0.0 M M M
2/2/2012 6:30 AM 0.00 0.0 M M M
2/3/2012 7:00 AM M 8.0 M M M Lots of blowing & drifting; Accurate snow measurement difficult
2/4/2012 7:00 AM M 17.0 M M M 17" since yesterdays report; Storm total 25.0 inches; still snowing lightly but wrapping up
2/5/2012 7:00 AM M 0.3 M M M 0.3" since last report; 25.3" storm total
2/6/2012 6:45 AM 0.00 0.0 M M M
2/7/2012 7:00 AM M 5.7 M M M light flurries & 22 deg at report time
2/8/2012 6:45 AM M 1.0 M M M 1.0" since last report, primarily fell right after yesterday's report time; 6.7" total for latest storm
2/12/2012 7:00 AM 0.00 0.0 M M M
2/13/2012 7:00 AM 0.02 0.2 M M M
2/14/2012 6:45 AM 0.00 0.0 M M M
2/20/2012 7:00 AM 0.01 0.1 M M M
2/21/2012 7:00 AM 0.00 0.0 M M M
2/23/2012 6:00 AM M 6.5 M M M
2/25/2012 6:45 AM 0.00 0.0 M M M
4/4/2012 7:00 AM M 3.1 M M M
4/12/2012 6:45 AM 0.06 M M M M 1st t-storm of the season yesterday afternoon
4/15/2012 6:45 AM M 1.2 M M M
4/16/2012 7:00 AM 0.43 T M M M 0.63 inches storm total (0.20 in on 4/14/12 + 0.43 on 4/15/12)
4/18/2012 6:30 AM 0.00 0.0 M M M
4/21/2012 7:00 AM 0.00 0.0 M M M
4/26/2012 6:00 AM 0.00 0.0 M M M
4/27/2012 6:00 AM 0.10 M M M M
4/30/2012 6:00 AM 0.00 0.0 M M M
5/5/2012 6:30 AM 0.00 0.0 M M M
5/6/2012 7:00 AM 0.07 M M M M
5/7/2012 6:30 AM 0.46 M M M M
5/8/2012 7:00 AM 0.26 M M M M 0.72" storm total
5/9/2012 7:00 AM 0.00 0.0 M M M
5/10/2012 6:30 AM 0.00 0.0 M M M
5/11/2012 6:30 AM 0.00 0.0 M M M
5/12/2012 7:00 AM 0.24 M M M M Foggy & 40 at report time
5/13/2012 8:00 AM 0.15 M M M M 43 & light drizzle at report time
5/14/2012 6:30 AM 0.00 0.0 M M M
5/16/2012 7:00 AM 0.00 0.0 M M M
5/17/2012 7:00 AM 0.00 0.0 M M M
5/18/2012 6:30 AM 0.00 0.0 M M M
5/19/2012 7:30 AM 0.06 M M M M
5/20/2012 7:00 AM 0.40 M M M M 0.46 storm total; 0.40 since last report yesterday AM
5/21/2012 6:45 AM 0.00 0.0 M M M
5/22/2012 6:30 AM 0.00 0.0 M M M
5/23/2012 7:00 AM 0.00 0.0 M M M
5/24/2012 7:00 AM 0.51 M M M M
5/25/2012 6:45 AM 0.00 0.0 M M M
5/26/2012 7:00 AM 0.00 0.0 M M M
5/28/2012 6:30 AM 0.00 0.0 M M M
5/29/2012 7:00 AM 0.00 0.0 M M M
5/30/2012 6:30 AM 0.00 0.0 M M M
6/2/2012 7:00 AM 0.00 0.0 M M M
6/3/2012 5:45 AM 0.09 M M M M
6/5/2012 7:00 AM 0.00 0.0 M M M
6/7/2012 7:00 AM 1.37 M M M M Severe T-storm overnight (~11 Pm - 1 AM) with extensive pea to dime size hail. "Hail drifts" to 2 in. deep still present at report time. Report of 1.37" is from my Davis gauge. 1.08" recorded in my Cocorahs gauge. Generally Davis undercalls wrt Coco gauge. My thought is much of the hail bounced out of the smaller Coco funnel but was caught by the Davis gauge so I feel in this case the Davis gauge is more accurate due to the large volume of hail (and that Coco undercalled wrt Davis)
6/8/2012 7:00 AM 0.02 M M M M
6/9/2012 7:00 AM 0.00 0.0 M M M
6/10/2012 7:00 AM 0.00 0.0 M M M
6/13/2012 6:45 AM 0.00 0.0 M M M
6/14/2012 7:00 AM 0.00 0.0 M M M
6/15/2012 7:00 AM 0.00 0.0 M M M
6/16/2012 7:00 AM 0.07 M M M M
6/17/2012 7:00 AM T M M M M
6/18/2012 6:30 AM 0.00 0.0 M M M
6/19/2012 7:00 AM 0.00 0.0 M M M
6/20/2012 7:00 AM 0.00 0.0 M M M
6/22/2012 7:00 AM 0.00 0.0 M M M
6/28/2012 7:00 AM 0.02 M M M M
6/29/2012 6:45 AM 0.02 M M M M
7/2/2012 6:45 AM T M M M M
7/3/2012 6:45 AM T M M M M
7/6/2012 6:30 AM 0.03 M M M M
7/7/2012 5:15 AM 0.49 M M M M
7/8/2012 7:00 AM 0.62 M M M M
7/9/2012 6:15 AM 0.17 M M M M
7/10/2012 7:00 AM 0.01 M M M M
7/11/2012 7:00 AM 0.00 0.0 M M M
7/13/2012 7:00 AM 0.00 0.0 M M M
7/15/2012 7:00 AM 0.00 0.0 M M M
7/16/2012 7:00 AM T M M M M
7/17/2012 6:45 AM 0.28 M M M M
7/18/2012 7:00 AM T M M M M
7/19/2012 6:45 AM T M M M M
7/20/2012 6:30 AM 0.00 0.0 M M M
7/21/2012 7:00 AM 0.00 0.0 M M M
7/22/2012 7:00 AM 0.00 0.0 M M M
7/23/2012 7:00 AM 0.00 0.0 M M M
8/19/2012 7:00 AM 0.00 0.0 M M M
8/20/2012 7:00 AM 0.00 0.0 M M M
8/21/2012 7:00 AM 0.00 0.0 M M M
8/22/2012 7:00 AM 0.00 0.0 M M M
8/23/2012 6:30 AM 0.03 M M M M
8/27/2012 6:45 AM 0.00 0.0 M M M
8/29/2012 7:00 AM 0.00 0.0 M M M
8/30/2012 6:45 AM 0.00 0.0 M M M
9/11/2012 6:00 AM 0.00 0.0 M M M
9/12/2012 6:40 AM 0.64 M M M M Moderate rain at report time
9/13/2012 6:30 AM 1.34 M M M M Total for storm event of 1.98 inches; currently 50 and cloudy, rain is over
9/14/2012 7:00 AM 0.00 0.0 M M M
9/15/2012 7:00 AM 0.00 0.0 M M M
9/19/2012 7:00 AM 0.00 0.0 M M M
9/22/2012 7:00 AM 0.00 0.0 M M M
9/23/2012 7:00 AM 0.00 0.0 M M M
9/24/2012 6:45 AM 0.00 0.0 M M M
9/25/2012 7:00 AM 0.00 0.0 M M M
9/26/2012 7:00 AM 0.19 M M M M
9/27/2012 7:00 AM 0.08 M M M M
9/28/2012 6:45 AM 0.02 M M M M
9/29/2012 7:00 AM 0.00 0.0 M M M
9/30/2012 6:45 AM 0.00 0.0 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