Station Overview Station Location
Station Number CO-LR-683 Latitude 40.58
Station Name Horsetooth Mountain 3.2 NNW Longitude -105.22
County Larimer Elevation (ft) 6900



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 1.47 2.23 3 2.23 3 0.00 0 0 3 0 11.0 2 0
Nov 11 1.07 0.98 3 0.98 3 0.00 0 0 2 1 9.0 2 0
Dec 11 0.64 1.84 4 1.84 4 0.00 0 0 4 0 27.0 4 2
Jan 12 0.52 0.00 3 0.00 3 0.00 0 0 0 2 0.0 0 0
Feb 12 0.51 3.34 5 3.34 5 0.00 0 0 5 0 35.5 5 1
March 12 2.34 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 12 2.30 0.44 7 0.44 7 0.00 0 0 5 2 2.0 2 0
May 12 3.57 1.52 6 1.52 6 0.00 0 0 6 0 0.0 0 0
June 12 2.66 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 12 2.31 4.56 7 4.56 7 0.00 0 0 7 0 0.0 0 0
Aug 12 1.82 0.10 1 0.10 1 0.00 0 0 1 0 0.0 0 0
Sept 12 1.47 1.63 7 1.63 4 0.00 3 0 4 0 0.0 0 0
Water Year Totals: 20.68" 16.64" 46 days 16.64" 43 0.00" 3 days 0 37 days 5 days 84.5" 15 days 3 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
10/2/2011
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011 0.76
10/10/2011
10/11/2011
10/12/2011
10/13/2011
10/14/2011
10/15/2011
10/16/2011
10/17/2011
10/18/2011
10/19/2011
10/20/2011
10/21/2011
10/22/2011
10/23/2011
10/24/2011
10/25/2011
10/26/2011 1.25
10/27/2011 0.22
10/28/2011
10/29/2011
10/30/2011
10/31/2011
11/1/2011
11/2/2011 0.95
11/3/2011
11/4/2011
11/5/2011
11/6/2011
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011 T
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011 0.03
11/20/2011
11/21/2011
11/22/2011
11/23/2011
11/24/2011
11/25/2011
11/26/2011
11/27/2011
11/28/2011
11/29/2011
11/30/2011
12/1/2011 0.64
12/2/2011 0.18
12/3/2011 0.30
12/4/2011
12/5/2011
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011 0.72
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012 T
1/9/2012
1/10/2012
1/11/2012 0.00
1/12/2012 T
1/13/2012
1/14/2012
1/15/2012
1/16/2012
1/17/2012
1/18/2012
1/19/2012
1/20/2012
1/21/2012
1/22/2012
1/23/2012
1/24/2012
1/25/2012
1/26/2012
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012 2.55
2/4/2012 0.48
2/5/2012
2/6/2012
2/7/2012 0.04
2/8/2012
2/9/2012
2/10/2012
2/11/2012 0.09
2/12/2012
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012 0.18
2/24/2012
2/25/2012
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 T
4/4/2012 0.18
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012
4/11/2012 0.02
4/12/2012 0.06
4/13/2012
4/14/2012
4/15/2012 T
4/16/2012 0.16
4/17/2012
4/18/2012
4/19/2012
4/20/2012
4/21/2012
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012
4/27/2012 0.02
4/28/2012
4/29/2012
4/30/2012
5/1/2012
5/2/2012
5/3/2012
5/4/2012
5/5/2012
5/6/2012
5/7/2012 0.43
5/8/2012 0.23
5/9/2012
5/10/2012
5/11/2012
5/12/2012 0.04
5/13/2012
5/14/2012
5/15/2012
5/16/2012
5/17/2012
5/18/2012
5/19/2012 0.36
5/20/2012 0.11
5/21/2012
5/22/2012
5/23/2012
5/24/2012 0.35
5/25/2012
5/26/2012
5/27/2012
5/28/2012
5/29/2012
5/30/2012
5/31/2012
6/1/2012
6/2/2012
6/3/2012
6/4/2012
6/5/2012
6/6/2012
6/7/2012
6/8/2012
6/9/2012
6/10/2012
6/11/2012
6/12/2012
6/13/2012
6/14/2012
6/15/2012
6/16/2012
6/17/2012
6/18/2012
6/19/2012
6/20/2012
6/21/2012
6/22/2012
6/23/2012
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012
6/29/2012
6/30/2012
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012
7/3/2012
7/4/2012
7/5/2012
7/6/2012
7/7/2012 1.35
7/8/2012 2.04
7/9/2012 0.52
7/10/2012
7/11/2012
7/12/2012
7/13/2012
7/14/2012
7/15/2012
7/16/2012
7/17/2012
7/18/2012
7/19/2012
7/20/2012
7/21/2012
7/22/2012
7/23/2012
7/24/2012
7/25/2012 0.21
7/26/2012 0.19
7/27/2012
7/28/2012
7/29/2012
7/30/2012 0.18
7/31/2012 0.07
8/1/2012
8/2/2012
8/3/2012
8/4/2012
8/5/2012
8/6/2012
8/7/2012 0.10
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
8/20/2012
8/21/2012
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012
8/27/2012
8/28/2012
8/29/2012
8/30/2012
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
9/12/2012 0.59
9/13/2012 0.13
9/14/2012
9/15/2012
9/16/2012
9/17/2012
9/18/2012
9/19/2012
9/20/2012
9/21/2012
9/22/2012
9/23/2012
9/24/2012
9/25/2012
9/26/2012 0.22
9/27/2012 0.69
9/28/2012 **
9/29/2012 **
9/30/2012 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/9/2011 7:00 AM 0.76 T 0.76 M M started snowing 8AM HEAVY wet snow off and on most of the day,,, at one time snow depth was around 3 to 4 inches, and when we got up this morning, almost all of the snow had melted because of the warm earth
10/26/2011 7:00 AM 1.25 9.0 1.25 M M
10/27/2011 7:00 AM 0.22 2.0 0.22 M M
11/2/2011 7:00 AM 0.95 8.0 0.95 M M
11/14/2011 7:00 AM T T T M M
11/19/2011 7:00 AM 0.03 1.0 0.03 M M
12/1/2011 6:35 AM 0.64 7.0 0.64 7.0 M
12/2/2011 7:00 AM 0.18 2.0 0.18 9.0 M
12/3/2011 7:00 AM 0.30 6.0 0.30 M M
12/22/2011 7:00 AM 0.72 12.0 0.72 M M
1/8/2012 7:00 AM T T T M M
1/11/2012 7:00 AM 0.00 0.0 M M M
1/12/2012 7:00 AM T T T M M
2/3/2012 7:00 AM 2.55 22.0 2.55 M M
2/4/2012 7:00 AM 0.48 6.0 0.48 28.0 M
2/7/2012 7:00 AM 0.04 1.5 0.04 M M
2/11/2012 7:00 AM 0.09 4.0 0.09 M M
2/23/2012 7:00 AM 0.18 2.0 0.18 M M
4/3/2012 6:00 AM T T T M M
4/4/2012 7:00 AM 0.18 1.0 0.18 M M when the snow hit the ground, it melted and I had a hard time determining that 1 inch (vs say 2 inches) total fell,,, but we here in the mountains west of FortCollins are VERY THANKFUL for any precip!!! Our local fire dept was on red flag warning last week
4/11/2012 7:00 AM 0.02 M M M M
4/12/2012 7:00 AM 0.06 M M M M
4/15/2012 7:00 AM T T T M M
4/16/2012 7:00 AM 0.16 1.0 0.16 M M
4/27/2012 7:00 AM 0.02 M M M M
5/7/2012 6:45 AM 0.43 T M M M light rain all evening, and corn snow starting 6:30am
5/8/2012 6:30 AM 0.23 M M M M
5/12/2012 7:00 AM 0.04 M M M M
5/19/2012 6:00 AM 0.36 M M M M 4:45am rain Deluge! entire amount came down in a 15 minute time, was hitting the house at a 45 degree angle
5/20/2012 7:00 AM 0.11 M M M M
5/24/2012 7:00 AM 0.35 M M M M
7/7/2012 7:00 AM 1.35 M M M M
7/8/2012 7:00 AM 2.04 M M M M yesterday 3pm (approx) most of the 2" came down in a 1/2 hour time, and washed out my gravel driveway
7/9/2012 5:30 AM 0.52 M M M M
7/25/2012 7:00 AM 0.21 M M M M
7/26/2012 6:30 AM 0.19 M M M M
7/30/2012 7:00 AM 0.18 M M M M
7/31/2012 7:00 AM 0.07 M M M M
8/7/2012 7:00 AM 0.10 M M M M
9/12/2012 7:00 AM 0.59 M M M M
9/13/2012 7:00 AM 0.13 M M M M
9/26/2012 7:00 AM 0.22 M M M M
9/27/2012 7:00 AM 0.69 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/28/2012 10/13/2012 7:00 AM 16 0.25 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