Station Overview Station Location
Station Number CO-CF-19 Latitude 38.7301
Station Name Nathrop 3.3 WSW Longitude -106.1328
County Chaffee Elevation (ft) 8136



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 18 0.98 0.69 19 0.04 12 0.65 7 1 1 4 1.2 1 1
Nov 18 0.55 0.02 3 0.02 3 0.00 0 0 1 0 3.0 1 1
Dec 18 0.55 0.11 21 0.11 21 0.00 0 0 3 2 0.9 3 2
Jan 19 0.35 0.02 9 0.02 9 0.00 0 0 1 1 11.4 2 4
Feb 19 0.51 0.42 14 0.42 14 0.00 0 0 5 0 4.5 5 5
March 19 0.83 0.38 4 0.38 4 0.00 0 0 3 1 5.2 3 3
April 19 0.95 0.00 1 0.00 1 0.00 0 0 0 1 0.0 0 0
May 19 1.23 1.18 4 1.18 3 0.00 1 0 2 1 8.5 2 2
June 19 0.82 0.49 13 0.29 11 0.20 2 1 6 1 0.0 0 0
July 19 1.63 1.39 30 0.76 20 0.63 10 2 7 2 0.0 0 0
Aug 19 2.10 0.67 31 0.50 27 0.17 4 1 6 0 0.0 0 0
Sept 19 0.99 0.77 30 0.77 30 0.00 0 0 5 1 0.0 0 0
Water Year Totals: 11.49" 6.14" 179 days 4.49" 155 1.65" 24 days 5 40 days 14 days 34.7" 17 days 18 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
10/1/2018 0.00
10/2/2018 T
10/3/2018 T
10/4/2018 T
10/5/2018 0.00
10/6/2018 0.00
10/7/2018 **
10/8/2018 **
10/9/2018 **
10/10/2018 **
10/11/2018 **
10/12/2018 **
10/13/2018 0.65
10/14/2018 0.00
10/15/2018 0.04
10/16/2018 0.00
10/17/2018 0.00
10/18/2018 T
10/19/2018
10/20/2018
10/21/2018
10/22/2018 0.00
10/23/2018
10/24/2018
10/25/2018
10/26/2018
10/27/2018
10/28/2018
10/29/2018
10/30/2018
10/31/2018
11/1/2018
11/2/2018
11/3/2018
11/4/2018
11/5/2018 0.02
11/6/2018 0.00
11/7/2018 0.00
11/8/2018
11/9/2018
11/10/2018
11/11/2018
11/12/2018
11/13/2018
11/14/2018
11/15/2018
11/16/2018
11/17/2018
11/18/2018
11/19/2018
11/20/2018
11/21/2018
11/22/2018
11/23/2018
11/24/2018
11/25/2018
11/26/2018
11/27/2018
11/28/2018
11/29/2018
11/30/2018
12/1/2018
12/2/2018
12/3/2018 0.05
12/4/2018
12/5/2018
12/6/2018
12/7/2018
12/8/2018
12/9/2018 0.00
12/10/2018 0.00
12/11/2018 0.00
12/12/2018 0.00
12/13/2018 0.00
12/14/2018 0.00
12/15/2018 0.00
12/16/2018 0.00
12/17/2018 0.00
12/18/2018 0.00
12/19/2018 0.00
12/20/2018 T
12/21/2018 0.00
12/22/2018 0.00
12/23/2018 T
12/24/2018
12/25/2018
12/26/2018
12/27/2018 0.00
12/28/2018 0.05
12/29/2018 0.00
12/30/2018 0.01
12/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2019 M
1/2/2019
1/3/2019
1/4/2019
1/5/2019
1/6/2019
1/7/2019
1/8/2019
1/9/2019
1/10/2019
1/11/2019
1/12/2019
1/13/2019
1/14/2019
1/15/2019
1/16/2019
1/17/2019
1/18/2019 0.02
1/19/2019 0.00
1/20/2019
1/21/2019
1/22/2019
1/23/2019
1/24/2019
1/25/2019 0.00
1/26/2019 0.00
1/27/2019 0.00
1/28/2019 0.00
1/29/2019 T
1/30/2019 0.00
1/31/2019 0.00
2/1/2019 0.00
2/2/2019 0.00
2/3/2019 0.00
2/4/2019 0.00
2/5/2019 0.01
2/6/2019 0.04
2/7/2019
2/8/2019
2/9/2019
2/10/2019
2/11/2019
2/12/2019
2/13/2019
2/14/2019 0.02
2/15/2019 0.25
2/16/2019 0.00
2/17/2019 0.00
2/18/2019 0.10
2/19/2019
2/20/2019
2/21/2019
2/22/2019
2/23/2019
2/24/2019
2/25/2019
2/26/2019 0.00
2/27/2019 0.00
2/28/2019 0.00
3/1/2019 0.04
3/2/2019
3/3/2019
3/4/2019
3/5/2019
3/6/2019
3/7/2019 0.04
3/8/2019
3/9/2019
3/10/2019
3/11/2019
3/12/2019
3/13/2019
3/14/2019
3/15/2019
3/16/2019
3/17/2019
3/18/2019
3/19/2019
3/20/2019
3/21/2019
3/22/2019 0.30
3/23/2019
3/24/2019
3/25/2019
3/26/2019
3/27/2019
3/28/2019
3/29/2019
3/30/2019 T
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019 T
4/2/2019
4/3/2019
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019
4/9/2019
4/10/2019
4/11/2019
4/12/2019
4/13/2019
4/14/2019
4/15/2019
4/16/2019
4/17/2019
4/18/2019
4/19/2019
4/20/2019
4/21/2019
4/22/2019
4/23/2019
4/24/2019
4/25/2019
4/26/2019
4/27/2019
4/28/2019
4/29/2019
4/30/2019
5/1/2019
5/2/2019
5/3/2019
5/4/2019
5/5/2019
5/6/2019
5/7/2019
5/8/2019
5/9/2019 1.04
5/10/2019 0.14
5/11/2019
5/12/2019
5/13/2019
5/14/2019
5/15/2019
5/16/2019
5/17/2019
5/18/2019 T
5/19/2019
5/20/2019
5/21/2019
5/22/2019
5/23/2019
5/24/2019
5/25/2019
5/26/2019
5/27/2019
5/28/2019
5/29/2019
5/30/2019
5/31/2019 **
6/1/2019 **
6/2/2019 0.20 0.20
6/3/2019 0.01
6/4/2019
6/5/2019
6/6/2019 0.02
6/7/2019 0.00
6/8/2019
6/9/2019 0.00
6/10/2019 0.00
6/11/2019 0.00
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019
6/17/2019
6/18/2019
6/19/2019
6/20/2019
6/21/2019
6/22/2019 0.01
6/23/2019 0.04
6/24/2019
6/25/2019
6/26/2019
6/27/2019
6/28/2019
6/29/2019 0.01
6/30/2019 T
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.12
7/2/2019 0.19
7/3/2019 0.01
7/4/2019 0.00
7/5/2019 0.00
7/6/2019 0.00
7/7/2019 **
7/8/2019 **
7/9/2019 **
7/10/2019 **
7/11/2019 **
7/12/2019 **
7/13/2019 0.20
7/14/2019 0.00
7/15/2019 0.06
7/16/2019 0.00
7/17/2019 0.00
7/18/2019 0.00
7/19/2019
7/20/2019 **
7/21/2019 **
7/22/2019 0.43
7/23/2019 0.00
7/24/2019 0.00
7/25/2019 0.03
7/26/2019 0.27
7/27/2019 T
7/28/2019 0.00
7/29/2019 0.00
7/30/2019 T
7/31/2019 0.08
8/1/2019 0.04
8/2/2019 0.28
8/3/2019 0.00
8/4/2019 0.00
8/5/2019 0.10
8/6/2019 0.02
8/7/2019 **
8/8/2019 **
8/9/2019 **
8/10/2019 0.17
8/11/2019 0.00
8/12/2019 0.00
8/13/2019 0.00
8/14/2019 0.00
8/15/2019 0.00
8/16/2019 0.00
8/17/2019 0.00
8/18/2019 0.00
8/19/2019 0.00
8/20/2019 0.00
8/21/2019 0.00
8/22/2019 0.04
8/23/2019 0.02
8/24/2019 0.00
8/25/2019 0.00
8/26/2019 0.00
8/27/2019 0.00
8/28/2019 0.00
8/29/2019 0.00
8/30/2019 0.00
8/31/2019 0.00
9/1/2019 0.00
9/2/2019 0.00
9/3/2019 0.00
9/4/2019 0.52
9/5/2019 0.05
9/6/2019 0.04
9/7/2019 0.07
9/8/2019 T
9/9/2019 0.09
9/10/2019 0.00
9/11/2019 0.00
9/12/2019 0.00
9/13/2019 0.00
9/14/2019 0.00
9/15/2019 0.00
9/16/2019 0.00
9/17/2019 0.00
9/18/2019 0.00
9/19/2019 0.00
9/20/2019 0.00
9/21/2019 0.00
9/22/2019 0.00
9/23/2019 0.00
9/24/2019 0.00
9/25/2019 0.00
9/26/2019 0.00
9/27/2019 0.00
9/28/2019 0.00
9/29/2019 0.00
9/30/2019 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2018 7:00 AM 0.00 0.0 M M M
10/2/2018 7:00 AM T 0.0 M 0.0 M
10/3/2018 7:00 AM T 0.0 M 0.0 M Occasional sprinkles.
10/4/2018 7:00 AM T 0.0 M 0.0 M Occasional sprinkles and light rain. (Light rain started again at about 7:05 AM today.)
10/5/2018 7:00 AM 0.00 0.0 M M M
10/6/2018 7:00 AM 0.00 0.0 M M M
10/14/2018 7:00 AM 0.00 0.0 M M M
10/15/2018 7:00 AM 0.04 1.2 M 0.5 M
10/16/2018 7:00 AM 0.00 0.0 M M M
10/17/2018 7:00 AM 0.00 0.0 M 0.0 M
10/18/2018 7:00 AM T 0.0 M 0.0 M A few drops and sleet grains once in awhile.
10/22/2018 7:00 AM 0.00 0.0 M 0.0 M
11/5/2018 7:00 AM 0.02 3.0 M 0.5 M Very few flakes in late afternoon; snow stopped before 5 AM.
11/6/2018 7:00 AM 0.00 0.0 M 0.0 M
11/7/2018 7:00 AM 0.00 0.0 M 0.0 M
12/3/2018 7:00 AM 0.05 0.5 M 0.5 M Snow overnight.
12/9/2018 7:00 AM 0.00 0.0 M M M
12/10/2018 7:00 AM 0.00 0.0 M M M
12/11/2018 7:00 AM 0.00 0.0 M M M
12/12/2018 7:00 AM 0.00 0.0 M M M
12/13/2018 7:00 AM 0.00 0.0 M M M
12/14/2018 7:00 AM 0.00 0.0 M M M
12/15/2018 7:00 AM 0.00 0.0 M M M
12/16/2018 7:00 AM 0.00 0.0 M M M
12/17/2018 7:00 AM 0.00 0.0 M M M
12/18/2018 7:00 AM 0.00 0.0 M M M
12/19/2018 7:00 AM 0.00 0.0 M M M
12/20/2018 7:00 AM T T M 0.0 M Essentially no accumulation on ground; perhaps 0.04" on deck rail.
12/21/2018 7:00 AM 0.00 0.0 M M M
12/22/2018 7:00 AM 0.00 0.0 M M M
12/23/2018 7:00 AM T T M 0.0 M Just enough snow to make the ground white for awhile.
12/27/2018 7:00 AM 0.00 0.0 M M M
12/28/2018 7:00 AM 0.05 0.3 M 0.5 M
12/29/2018 7:00 AM 0.00 0.0 M T M About 30% coverage
12/30/2018 7:00 AM 0.01 0.1 M T M Overnight snow, still about 0.1 on ground at 7AM.
12/31/2018 7:00 AM 0.00 0.0 M 0.0 M
1/1/2019 7:00 AM M 9.5 M 9.5 M Still barely snowing at 7 AM. Funnel on gauge prevented accurate collection.
1/18/2019 7:00 AM 0.02 1.9 M 4.0 M Snow overnight.
1/19/2019 7:00 AM 0.00 0.0 M 3.5 M
1/25/2019 7:00 AM 0.00 0.0 M M M
1/26/2019 7:00 AM 0.00 0.0 M M M
1/27/2019 7:00 AM 0.00 0.0 M M M
1/28/2019 7:00 AM 0.00 0.0 M M M
1/29/2019 7:00 AM T T M 7.5 M
1/30/2019 7:00 AM 0.00 0.0 M M M
1/31/2019 7:00 AM 0.00 0.0 M M M
2/1/2019 7:00 AM 0.00 0.0 M M M
2/2/2019 7:00 AM 0.00 0.0 M M M
2/3/2019 7:00 AM 0.00 0.0 M M M
2/4/2019 7:00 AM 0.00 0.0 M M M
2/5/2019 7:00 AM 0.01 0.1 M 5.5 M Snowed a bit overnight.
2/6/2019 7:00 AM 0.04 0.5 M 5.0 M Significant melting yesterday. Still snowing at 7AM.
2/14/2019 7:00 AM 0.02 0.2 M 3.0 M
2/15/2019 7:00 AM 0.25 2.2 M 4.5 M Snow overnight sometime between 8 PM and 5 AM.
2/16/2019 7:00 AM 0.00 0.0 M M M
2/17/2019 7:00 AM 0.00 0.0 M M M
2/18/2019 7:00 AM 0.10 1.5 M 6.0 M
2/26/2019 7:00 AM 0.00 0.0 M M M
2/27/2019 7:00 AM 0.00 0.0 M M M
2/28/2019 7:00 AM 0.00 0.0 M M M
3/1/2019 7:00 AM 0.04 0.4 M 3.0 M
3/7/2019 7:00 AM 0.04 1.8 M 4.0 M Trace of snow until 8:30, rain from 3PM until 5PM, and snow from 2:30AM until 4AM. The 0.04 figure is low, probably due to wind.
3/22/2019 7:00 AM 0.30 3.0 M 3.0 M Snow overnight, mostly after midnight (still snowing lightly at 7AM.
3/30/2019 7:00 AM T 0.0 M T M About 1% coverage. Very light sleet from 2:15 to 2:30PM, then a pretty good blizzard from 5:00 to 5:50PM, with spotty accumulation due to wind - all of the new snow gone by morning.
4/1/2019 7:00 AM T T M T M Less than 1% coverage. Extremely light snow intermittently for most of the day, then perhaps 0.1" overnight before 5AM, butessentially all gone by 7AM.
5/9/2019 8:00 AM 1.04 8.0 M 6.5 M Rain, then snow from about 3:30 PM, mostly between 5 PM & 8 PM.
5/10/2019 7:00 AM 0.14 0.5 M 3.0 M
5/18/2019 7:00 AM T T M 0.0 M Light snow (sizeable flakes).
6/2/2019 7:00 AM 0.20 0.0 M 0.0 M
6/3/2019 11:30 AM 0.01 0.0 M 0.0 M
6/6/2019 7:00 AM 0.02 M M M M Rain sometime overnight.
6/7/2019 7:00 AM 0.00 0.0 M 0.0 M
6/9/2019 7:00 AM 0.00 0.0 M 0.0 M
6/10/2019 7:00 AM 0.00 0.0 M 0.0 M
6/11/2019 7:00 AM 0.00 0.0 M 0.0 M
6/22/2019 7:00 AM 0.01 M M M M Rain sometime overnight.
6/23/2019 7:00 AM 0.04 M M M M
6/29/2019 7:00 AM 0.01 0.0 M 0.0 M Sprinkle 4:55 - 5:10. Rain 5:35 - 5:50.
6/30/2019 7:00 AM T 0.0 M 0.0 M Occasional sprinkles.
7/1/2019 7:00 AM 0.12 0.0 M 0.0 M Sprinkles 12:15 - 12:45; intermittent rain 1:20 - 5:12.
7/2/2019 7:00 AM 0.19 0.0 M 0.0 M Rain sometime between 5:30 and 7 PM (0.01")while I was away. Rain 7:35 - 8:15 (big thunderstorm).
7/3/2019 7:00 AM 0.01 0.0 M 0.0 M
7/4/2019 7:00 AM 0.00 0.0 M 0.0 M
7/5/2019 7:00 AM 0.00 0.0 M 0.0 M
7/6/2019 7:00 AM 0.00 0.0 M 0.0 M
7/14/2019 7:00 AM 0.00 0.0 M 0.0 M
7/15/2019 7:00 AM 0.06 0.0 M 0.0 M
7/16/2019 7:00 AM 0.00 T M 0.0 0.00 A few drop. Later, between about 5 and 8 PM, a big thunderstorm went close by th the south, but no precipitation here.
7/17/2019 7:00 AM 0.00 0.0 M 0.0 M
7/18/2019 7:00 AM 0.00 0.0 M 0.0 M
7/23/2019 7:00 AM 0.00 0.0 M 0.0 M some rain just NNW of here around 6:30 PM, but not here.
7/24/2019 7:00 AM 0.00 0.0 M 0.0 M
7/25/2019 7:00 AM 0.03 0.0 M 0.0 M Light sprinkle 4:30 - 4:45; rain from sometime after 5:45 until ??
7/26/2019 7:00 AM 0.27 0.0 M 0.0 M Intermittent rain until at least 7:15 pm.
7/27/2019 7:00 AM T 0.0 M 0.0 M Light sprionkle.
7/28/2019 7:00 AM 0.00 0.0 M 0.0 M
7/29/2019 7:00 AM 0.00 0.0 M 0.0 M
7/30/2019 7:00 AM T 0.0 M 0.0 M
7/31/2019 7:00 AM 0.08 0.0 M 0.0 M Sprinkle 11:58 - 12:10; rain 3:20 - 4:00; probably more rain later.
8/1/2019 7:00 AM 0.04 M M M M
8/2/2019 7:00 AM 0.28 0.0 M 0.0 M Sprinkle 4:10 - Rain 4:20 to sometime after 5:30.
8/3/2019 7:00 AM 0.00 0.0 M M M
8/4/2019 7:00 AM 0.00 0.0 M M M
8/5/2019 7:00 AM 0.10 M M M M Sometime overnight.
8/6/2019 7:00 AM 0.02 0.0 M 0.0 M Sprinkle 3:15-3:40, then sprinkle/rain sometime between 5:30 and 7PM, possibly more overnight.
8/11/2019 7:00 AM 0.00 0.0 M M M
8/12/2019 7:00 AM 0.00 0.0 M M M
8/13/2019 7:00 AM 0.00 0.0 M 0.0 M
8/14/2019 7:00 AM 0.00 0.0 M M M
8/15/2019 7:00 AM 0.00 0.0 M M M
8/16/2019 7:00 AM 0.00 0.0 M 0.0 M
8/17/2019 7:00 AM 0.00 0.0 M M M
8/18/2019 7:00 AM 0.00 0.0 M M M
8/19/2019 7:00 AM 0.00 0.0 M 0.0 M
8/20/2019 7:00 AM 0.00 0.0 M 0.0 M
8/21/2019 7:00 AM 0.00 0.0 M 0.0 M
8/22/2019 7:00 AM 0.04 0.0 M 0.0 M
8/23/2019 7:00 AM 0.02 0.0 M 0.0 M Sprinkle 12:30; rain 12:50 - 1:10 Sprinkle 4:10 - 4:20.
8/24/2019 7:00 AM 0.00 0.0 M 0.0 M
8/25/2019 7:00 AM 0.00 0.0 M M M
8/26/2019 7:00 AM 0.00 0.0 M M M
8/27/2019 7:00 AM 0.00 0.0 M 0.0 M
8/28/2019 7:00 AM 0.00 0.0 M 0.0 M
8/29/2019 7:00 AM 0.00 0.0 M 0.0 M
8/30/2019 7:00 AM 0.00 0.0 M M M
8/31/2019 7:00 AM 0.00 0.0 M M M
9/1/2019 7:00 AM 0.00 0.0 M M M
9/2/2019 7:00 AM 0.00 0.0 M M M
9/3/2019 7:00 AM 0.00 0.0 M M M
9/4/2019 7:00 AM 0.52 0.0 M 0.0 M Intermittent thunderstorms into the night.
9/5/2019 7:00 AM 0.05 0.0 M 0.0 M Rain and intermittent sprinkles throughout the afternoon.
9/6/2019 7:00 AM 0.04 0.0 M 0.0 M Intermittent sprinkles after 4:15.
9/7/2019 7:00 AM 0.07 0.0 M 0.0 M Sprinkles/rain 2:27-2:55, then more ending 6:20AM.
9/8/2019 7:00 AM T 0.0 M 0.0 M Sprinkle.
9/9/2019 7:00 AM 0.09 0.0 M 0.0 M Left home right after it started to rain; back shortly after 4 - had stopped raining sometime before; probably more rain sometime overnight.
9/10/2019 7:00 AM 0.00 0.0 M M M
9/11/2019 7:00 AM 0.00 0.0 M M M
9/12/2019 7:00 AM 0.00 0.0 M M M
9/13/2019 7:00 AM 0.00 0.0 M M M
9/14/2019 7:00 AM 0.00 0.0 M M M
9/15/2019 7:00 AM 0.00 0.0 M M M
9/16/2019 7:00 AM 0.00 0.0 M M M
9/17/2019 7:00 AM 0.00 0.0 M 0.0 M
9/18/2019 7:00 AM 0.00 0.0 M 0.0 M
9/19/2019 7:00 AM 0.00 0.0 M 0.0 M
9/20/2019 7:00 AM 0.00 0.0 M 0.0 M
9/21/2019 7:00 AM 0.00 0.0 M M M
9/22/2019 7:00 AM 0.00 0.0 M 0.0 M
9/23/2019 7:00 AM 0.00 0.0 M M M
9/24/2019 7:00 AM 0.00 0.0 M M M
9/25/2019 7:00 AM 0.00 0.0 M M M
9/26/2019 7:00 AM 0.00 0.0 M 0.0 M
9/27/2019 7:00 AM 0.00 0.0 M 0.0 M
9/28/2019 7:00 AM 0.00 0.0 M M M
9/29/2019 7:00 AM 0.00 0.0 M M M
9/30/2019 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
10/7/2018 10/13/2018 3:00 PM 7 0.65 0.0 0.00
5/31/2019 6/02/2019 3:00 PM 3 0.20 0.0 M Most accumulation occurred after noon.
7/7/2019 7/13/2019 1:15 PM 7 0.20 0.0 0.00
7/20/2019 7/22/2019 7:00 AM 3 0.43 0.0 0.00
8/7/2019 8/10/2019 7:00 AM 4 0.17 0.0 0.00



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