Station Overview Station Location
Station Number CO-AM-10 Latitude 37.65175
Station Name Great Sand Dunes 7.0 SSW Longitude -105.57938
County Alamosa Elevation (ft) 7890



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 0.83 1.58 31 1.58 31 0.00 0 0 11 1 2.0 1 1
Nov 18 0.39 0.03 30 0.03 30 0.00 0 0 2 3 0.2 1 1
Dec 18 0.34 0.20 31 0.20 31 0.00 0 0 4 1 3.1 4 8
Jan 19 0.37 0.92 31 0.92 31 0.00 0 0 7 1 10.3 7 23
Feb 19 0.37 0.68 28 0.68 20 0.00 8 1 5 3 5.6 4 14
March 19 0.79 1.65 31 1.65 31 0.00 0 0 9 1 6.7 4 6
April 19 0.97 0.66 30 0.66 30 0.00 0 0 4 2 2.6 2 1
May 19 0.97 1.36 31 1.36 31 0.00 0 0 8 0 6.5 3 3
June 19 1.17 0.81 30 0.81 30 0.00 0 0 8 0 0.0 0 0
July 19 1.45 2.07 31 2.07 31 0.00 0 0 6 3 0.0 0 0
Aug 19 1.94 0.35 31 0.35 31 0.00 0 0 4 3 0.0 0 0
Sept 19 1.50 0.67 30 0.67 24 0.00 6 0 3 4 0.0 0 0
Water Year Totals: 11.09" 10.98" 365 days 10.98" 351 0.00" 14 days 1 71 days 22 days 37.0" 26 days 57 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 0.01
10/3/2018 0.25
10/4/2018 T
10/5/2018 0.07
10/6/2018 0.00
10/7/2018 0.00
10/8/2018 0.12
10/9/2018 0.01
10/10/2018 0.02
10/11/2018 0.00
10/12/2018 0.03
10/13/2018 0.00
10/14/2018 0.00
10/15/2018 0.00
10/16/2018 0.00
10/17/2018 0.00
10/18/2018 0.00
10/19/2018 0.00
10/20/2018 0.00
10/21/2018 0.00
10/22/2018 0.00
10/23/2018 0.02
10/24/2018 0.47
10/25/2018 0.23
10/26/2018 0.00
10/27/2018 0.00
10/28/2018 0.00
10/29/2018 0.00
10/30/2018 0.00
10/31/2018 0.35
11/1/2018 T
11/2/2018 0.00
11/3/2018 0.01
11/4/2018 0.00
11/5/2018 0.00
11/6/2018 0.00
11/7/2018 0.00
11/8/2018 0.00
11/9/2018 0.00
11/10/2018 0.00
11/11/2018 0.00
11/12/2018 T
11/13/2018 0.00
11/14/2018 0.00
11/15/2018 0.00
11/16/2018 0.00
11/17/2018 0.00
11/18/2018 0.00
11/19/2018 0.00
11/20/2018 0.00
11/21/2018 0.00
11/22/2018 0.00
11/23/2018 T
11/24/2018 0.00
11/25/2018 0.02
11/26/2018 0.00
11/27/2018 0.00
11/28/2018 0.00
11/29/2018 0.00
11/30/2018 0.00
12/1/2018 0.01
12/2/2018 0.00
12/3/2018 0.06
12/4/2018 0.00
12/5/2018 0.00
12/6/2018 0.00
12/7/2018 0.00
12/8/2018 0.00
12/9/2018 0.00
12/10/2018 0.00
12/11/2018 0.00
12/12/2018 0.00
12/13/2018 T
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 0.00
12/21/2018 0.00
12/22/2018 0.00
12/23/2018 0.00
12/24/2018 0.00
12/25/2018 0.00
12/26/2018 0.00
12/27/2018 0.00
12/28/2018 0.03
12/29/2018 0.10
12/30/2018 0.00
12/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2019 0.47
1/2/2019 0.03
1/3/2019 0.00
1/4/2019 0.00
1/5/2019 0.00
1/6/2019 0.00
1/7/2019 0.00
1/8/2019 0.00
1/9/2019 0.00
1/10/2019 0.00
1/11/2019 0.13
1/12/2019 0.06
1/13/2019 T
1/14/2019 0.08
1/15/2019 0.00
1/16/2019 0.00
1/17/2019 0.00
1/18/2019 0.13
1/19/2019 0.00
1/20/2019 0.00
1/21/2019 0.00
1/22/2019 0.02
1/23/2019 0.00
1/24/2019 0.00
1/25/2019 0.00
1/26/2019 0.00
1/27/2019 0.00
1/28/2019 0.00
1/29/2019 0.00
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 0.00
2/6/2019 **
2/7/2019 **
2/8/2019 **
2/9/2019 **
2/10/2019 **
2/11/2019 **
2/12/2019 **
2/13/2019 T
2/14/2019 T
2/15/2019 0.09
2/16/2019 0.00
2/17/2019 0.00
2/18/2019 0.07
2/19/2019 0.06
2/20/2019 0.07
2/21/2019 T
2/22/2019 T
2/23/2019 0.39
2/24/2019 0.00
2/25/2019 0.00
2/26/2019 0.00
2/27/2019 0.00
2/28/2019 0.00
3/1/2019 0.00
3/2/2019 0.00
3/3/2019 0.05
3/4/2019 0.11
3/5/2019 0.01
3/6/2019 0.00
3/7/2019 0.00
3/8/2019 0.00
3/9/2019 0.03
3/10/2019 0.00
3/11/2019 0.01
3/12/2019 0.53
3/13/2019 0.43
3/14/2019 0.43
3/15/2019 0.00
3/16/2019 0.00
3/17/2019 0.00
3/18/2019 0.00
3/19/2019 0.00
3/20/2019 0.00
3/21/2019 0.00
3/22/2019 T
3/23/2019 0.05
3/24/2019 0.00
3/25/2019 0.00
3/26/2019 0.00
3/27/2019 0.00
3/28/2019 0.00
3/29/2019 0.00
3/30/2019 0.00
3/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2019 0.10
4/2/2019 0.00
4/3/2019 0.00
4/4/2019 0.00
4/5/2019 0.00
4/6/2019 0.00
4/7/2019 0.00
4/8/2019 0.00
4/9/2019 0.00
4/10/2019 0.00
4/11/2019 0.21
4/12/2019 0.00
4/13/2019 0.00
4/14/2019 0.00
4/15/2019 0.00
4/16/2019 0.00
4/17/2019 0.00
4/18/2019 0.00
4/19/2019 0.00
4/20/2019 0.00
4/21/2019 0.00
4/22/2019 T
4/23/2019 0.08
4/24/2019 T
4/25/2019 0.00
4/26/2019 0.00
4/27/2019 0.00
4/28/2019 0.00
4/29/2019 0.00
4/30/2019 0.27
5/1/2019 0.10
5/2/2019 0.00
5/3/2019 0.00
5/4/2019 0.00
5/5/2019 0.00
5/6/2019 0.00
5/7/2019 0.00
5/8/2019 0.02
5/9/2019 0.26
5/10/2019 0.60
5/11/2019 0.24
5/12/2019 0.00
5/13/2019 0.00
5/14/2019 0.00
5/15/2019 0.00
5/16/2019 0.00
5/17/2019 0.00
5/18/2019 0.00
5/19/2019 0.00
5/20/2019 0.00
5/21/2019 0.10
5/22/2019 0.01
5/23/2019 0.00
5/24/2019 0.00
5/25/2019 0.00
5/26/2019 0.00
5/27/2019 0.00
5/28/2019 0.00
5/29/2019 0.00
5/30/2019 0.03
5/31/2019 0.00
6/1/2019 0.00
6/2/2019 0.00
6/3/2019 0.04
6/4/2019 0.00
6/5/2019 0.00
6/6/2019 0.14
6/7/2019 0.16
6/8/2019 0.00
6/9/2019 0.00
6/10/2019 0.00
6/11/2019 0.18
6/12/2019 0.00
6/13/2019 0.00
6/14/2019 0.04
6/15/2019 0.00
6/16/2019 0.00
6/17/2019 0.00
6/18/2019 0.14
6/19/2019 0.06
6/20/2019 0.00
6/21/2019 0.00
6/22/2019 0.00
6/23/2019 0.05
6/24/2019 0.00
6/25/2019 0.00
6/26/2019 0.00
6/27/2019 0.00
6/28/2019 0.00
6/29/2019 0.00
6/30/2019 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.66
7/2/2019 T
7/3/2019 0.00
7/4/2019 0.00
7/5/2019 0.00
7/6/2019 0.00
7/7/2019 T
7/8/2019 0.00
7/9/2019 0.00
7/10/2019 0.00
7/11/2019 0.00
7/12/2019 0.00
7/13/2019 0.00
7/14/2019 0.00
7/15/2019 0.00
7/16/2019 0.05
7/17/2019 0.00
7/18/2019 0.00
7/19/2019 0.00
7/20/2019 0.00
7/21/2019 0.00
7/22/2019 0.00
7/23/2019 0.84
7/24/2019 0.18
7/25/2019 T
7/26/2019 0.00
7/27/2019 0.30
7/28/2019 0.00
7/29/2019 0.00
7/30/2019 0.04
7/31/2019 0.00
8/1/2019 0.00
8/2/2019 0.00
8/3/2019 T
8/4/2019 0.00
8/5/2019 0.00
8/6/2019 0.04
8/7/2019 0.00
8/8/2019 0.00
8/9/2019 0.00
8/10/2019 0.01
8/11/2019 0.13
8/12/2019 0.17
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 T
8/22/2019 0.00
8/23/2019 0.00
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 T
9/1/2019 0.00
9/2/2019 0.00
9/3/2019 0.00
9/4/2019 0.00
9/5/2019 0.00
9/6/2019 0.00
9/7/2019 T
9/8/2019 T
9/9/2019 0.03
9/10/2019 0.00
9/11/2019 0.20
9/12/2019 0.00
9/13/2019 0.00
9/14/2019 0.00
9/15/2019 0.00
9/16/2019 0.44
9/17/2019 T
9/18/2019 0.00
9/19/2019 0.00
9/20/2019 T
9/21/2019 0.00
9/22/2019 0.00
9/23/2019 0.00
9/24/2019 0.00
9/25/2019 **
9/26/2019 **
9/27/2019 **
9/28/2019 **
9/29/2019 **
9/30/2019 **



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 0.01 M M M M Dreary day. Misty sprinkles. Just enough to mess up the dust on the truck.
10/3/2018 7:00 AM 0.25 M M M M Rain showers off & on. Big rain about 3pm.
10/4/2018 7:00 AM T M M M M Overnight.
10/5/2018 7:00 AM 0.07 M M M M Ovrnight
10/6/2018 7:00 AM 0.00 0.0 M M M
10/7/2018 7:00 AM 0.00 0.0 M M M
10/8/2018 7:00 AM 0.12 M M M M Misty rain much of night. Snow down to 11,000 ft on Sangre de Cristos.
10/9/2018 7:00 AM 0.01 M M M M Overnight
10/10/2018 7:00 AM 0.02 M M M M
10/11/2018 7:00 AM 0.00 0.0 M M M
10/12/2018 7:00 AM 0.03 M M M M Dreary bleary days. The snow on the mountains is at least maintaining, if not accumulating slightly.
10/13/2018 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 0.00 0.0 M M 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 M M
10/18/2018 7:00 AM 0.00 0.0 M M M
10/19/2018 7:00 AM 0.00 0.0 M M M
10/20/2018 7:00 AM 0.00 0.0 M M M
10/21/2018 7:00 AM 0.00 0.0 M M M
10/22/2018 7:00 AM 0.00 0.0 M M M
10/23/2018 7:00 AM 0.02 M M M M
10/24/2018 7:00 AM 0.47 M M M M
10/25/2018 7:00 AM 0.23 M M M M
10/26/2018 7:00 AM 0.00 0.0 M M M
10/27/2018 7:00 AM 0.00 0.0 M M M
10/28/2018 7:00 AM 0.00 0.0 M M M
10/29/2018 7:00 AM 0.00 0.0 M M M
10/30/2018 7:00 AM 0.00 0.0 M M M
10/31/2018 7:00 AM 0.35 2.0 M 2.0 M Rain overnight turning to snow.
11/1/2018 7:00 AM T T M T M Still snowing slightly at 7am yesterday when reading taken. Snow on ground in shaded areas up to 1" in depth. Mostly melted in sunny areas.
11/2/2018 7:00 AM 0.00 0.0 M T M Snow on ground in shaded areas.
11/3/2018 7:00 AM 0.01 T M T M Skiff of fresh Snow overnight.
11/4/2018 7:00 AM 0.00 0.0 M T M Trace of snow in shaded areas.
11/5/2018 7:00 AM 0.00 0.0 M T M Snow on ground in shaded areas.
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
11/8/2018 7:00 AM 0.00 0.0 M 0.0 M
11/9/2018 7:00 AM 0.00 0.0 M 0.0 M Cccold! -- 14 degrees F.
11/10/2018 7:00 AM 0.00 0.0 M 0.0 M Clear & cold. 14F.
11/11/2018 7:00 AM 0.00 0.0 M 0.0 M
11/12/2018 7:00 AM T T M T M Windy & cold (15F). Angel's dandruff for precip. Granular "sugar snow" where it accumulated in the lee of obstructions.
11/13/2018 7:00 AM 0.00 0.0 M 0.0 M Windy, cold overnight, down to 6F. Currently mostly clear, 12F.
11/14/2018 7:00 AM 0.00 0.0 M 0.0 M
11/15/2018 7:00 AM 0.00 0.0 M 0.0 M
11/16/2018 7:00 AM 0.00 0.0 M 0.0 M
11/17/2018 7:00 AM 0.00 0.0 M 0.0 M
11/18/2018 7:00 AM 0.00 0.0 M 0.0 M
11/19/2018 7:00 AM 0.00 0.0 M 0.0 M
11/20/2018 7:00 AM 0.00 0.0 M 0.0 M
11/21/2018 7:00 AM 0.00 0.0 M 0.0 M
11/22/2018 7:00 AM 0.00 0.0 M M M
11/23/2018 7:00 AM T 0.0 M 0.0 M It was snow-flaking about 10pm when I took the dogs out last night. No trace of it this morning.
11/24/2018 7:00 AM 0.00 0.0 M 0.0 M
11/25/2018 7:00 AM 0.02 0.2 M 0.2 M Snow overnight. Snow on ground melting fast from ground heat.
11/26/2018 7:00 AM 0.00 0.0 M T M
11/27/2018 7:00 AM 0.00 0.0 M T M
11/28/2018 7:00 AM 0.00 0.0 M T M
11/29/2018 7:00 AM 0.00 0.0 M T M
11/30/2018 7:00 AM 0.00 0.0 M T M
12/1/2018 7:00 AM 0.01 0.2 M 0.2 M
12/2/2018 7:00 AM 0.00 0.0 M T M
12/3/2018 7:00 AM 0.06 1.5 M 1.5 M Trace during daytime hours, the rest fell overnight. Light, fluffy snow.
12/4/2018 7:00 AM 0.00 0.0 M 0.5 M
12/5/2018 7:00 AM 0.00 0.0 M 0.5 M
12/6/2018 7:00 AM 0.00 0.0 M T M
12/7/2018 7:00 AM 0.00 0.0 M T M
12/8/2018 7:00 AM 0.00 0.0 M T M
12/9/2018 7:00 AM 0.00 0.0 M M M
12/10/2018 7:00 AM 0.00 0.0 M T M Clear & Cold! 5F.
12/11/2018 7:00 AM 0.00 0.0 M T M
12/12/2018 7:00 AM 0.00 0.0 M T M
12/13/2018 7:00 AM T T M T M Trace of snow not noticed when report submitted yesterday. Granular snow apparently slid down windshield and accumulated on windshield wipers. 12/14/18
12/14/2018 7:00 AM 0.00 0.0 M T M
12/15/2018 7:00 AM 0.00 0.0 M T M
12/16/2018 7:00 AM 0.00 0.0 M T M
12/17/2018 7:00 AM 0.00 0.0 M T M
12/18/2018 7:00 AM 0.00 0.0 M T M
12/19/2018 7:00 AM 0.00 0.0 M T M
12/20/2018 7:00 AM 0.00 0.0 M T M Snow in shady spots
12/21/2018 7:00 AM 0.00 0.0 M T M
12/22/2018 7:00 AM 0.00 0.0 M T M
12/23/2018 7:00 AM 0.00 0.0 M T M
12/24/2018 7:00 AM 0.00 0.0 M T M Snow in shaded areas
12/25/2018 7:00 AM 0.00 0.0 M T M
12/26/2018 7:00 AM 0.00 0.0 M T M
12/27/2018 7:00 AM 0.00 0.0 M T M
12/28/2018 7:00 AM 0.03 0.6 M 0.6 M Snow overnight. Still snowing lightly. Small dry flakes. Started after midnight.
12/29/2018 7:00 AM 0.10 0.8 M 2.0 M Light Snow most of the day.
12/30/2018 7:00 AM 0.00 0.0 M 2.0 M Clear & Cold. -7F.
12/31/2018 7:00 AM 0.00 0.0 M 1.5 M Overcast. Cold, 6F. 60% chance of snow predicted.
1/1/2019 7:00 AM 0.47 5.2 M 8.0 M Light to heavy snow squalls all day & overnight. Still snowing lightly.
1/2/2019 7:00 AM 0.03 0.2 M 8.0 M Skiff of new fluffy snow overnight. -4F.
1/3/2019 7:00 AM 0.00 0.0 M 8.0 M Clear & COLD. -13F
1/4/2019 7:00 AM 0.00 0.0 M 8.0 M Clear & Cold. -3F.
1/5/2019 7:00 AM 0.00 0.0 M 8.0 M Clear, cold. 1F.
1/6/2019 7:00 AM 0.00 0.0 M 7.0 M Overcast. 22F
1/7/2019 7:00 AM 0.00 0.0 M 4.5 M Warm winds have been melting the snow. 44F or warmer yesterday.
1/8/2019 7:00 AM 0.00 0.0 M M M
1/9/2019 7:00 AM 0.00 0.0 M M M
1/10/2019 7:00 AM 0.00 0.0 M 4.0 M
1/11/2019 7:00 AM 0.13 1.4 M 5.5 M Snow started overnight. Still snowing.
1/12/2019 7:00 AM 0.06 0.2 M 6.0 M
1/13/2019 7:00 AM T T M 6.0 M
1/14/2019 7:00 AM 0.08 0.7 M 6.5 M Snow showers throughout day and into night.
1/15/2019 7:00 AM 0.00 T M 6.5 M We're in an ice fog. The cold air after the storm has settled in. 4F.
1/16/2019 7:00 AM 0.00 0.0 M 6.0 M
1/17/2019 7:00 AM 0.00 0.0 M 6.0 M
1/18/2019 7:00 AM 0.13 2.3 M 8.0 M No new snow at 3am. Snowing heavily at 5:15. Not snowing at 7:am.
1/19/2019 7:00 AM 0.00 T M 8.0 M Short duration snow shower about 7:30 pm. No accumulation. Currently clear sky.
1/20/2019 7:00 AM 0.00 0.0 M 7.5 M
1/21/2019 7:00 AM 0.00 0.0 M 7.5 M Clear sky for Super Blood Wolf Moon Eclipse!
1/22/2019 7:00 AM 0.02 0.3 M 6.0 M
1/23/2019 7:00 AM 0.00 0.0 M 5.0 M
1/24/2019 7:00 AM 0.00 0.0 M M 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 0.00 0.0 M M M
1/30/2019 7:00 AM 0.00 0.0 M 4.0 M Clear. Minus 8F. ( -8F )
1/31/2019 7:00 AM 0.00 0.0 M 4.0 M Clear & cold. -3F
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 0.00 0.0 M M M
2/14/2019 7:00 AM T 0.0 M 0.5 M A few snow flakes in afternoon. Snow depth very approximate, mostly in shaded areas up to 6 inches, but many areas with trace. Less than 50% of area bare/trace.
2/15/2019 7:00 AM 0.09 T M 0.5 M Mixed snow & rain showers. Snow depth very approximate, mostly in shaded areas up to 6 inches, but many areas with trace. Less than 50% of area bare/trace.
2/16/2019 7:00 AM 0.00 0.0 M 0.2 M Temps up to 50F. Snow melting quickly.
2/17/2019 7:00 AM 0.00 0.0 M T M Cold - Down to 3F. Snow mostly in shaded areas.
2/18/2019 7:00 AM 0.07 1.4 M 1.4 M Snow overnight. Still flaking.
2/19/2019 7:00 AM 0.06 0.3 M 2.0 M Wind while snowing & drifting making new depth difficult to determine.
2/20/2019 7:00 AM 0.07 0.4 M 2.5 M Snow overnight.
2/21/2019 7:00 AM T T M 2.0 M
2/22/2019 7:00 AM T 0.0 M 1.0 M
2/23/2019 7:00 AM 0.39 3.5 M 5.0 M Snow overnight.
2/24/2019 7:00 AM 0.00 0.0 M 4.5 M Cold & clear. -3F.
2/25/2019 7:00 AM 0.00 0.0 M 4.0 M Clear & cold. 2F.
2/26/2019 7:00 AM 0.00 0.0 M 3.0 M Snow depths from 4 inches to bare ground.
2/27/2019 7:00 AM 0.00 0.0 M 2.0 M Snow depths vary from bare ground to 4+ inches in shade.
2/28/2019 7:00 AM 0.00 0.0 M 1.0 M Snow spotty & variable in depth - 0 to 3+ inches; still more than 50% ground coverage. Two seismic events on Sangre de Cristo Fault yesterday: 2.4M at 10:10am MST (not felt) and 3.8M at 8:39pm (FELT!).
3/1/2019 7:00 AM 0.00 0.0 M T M Warm temps and warm breeze continues to melt snow cover - now more than 50% bare ground, shaded areas w/2+ inches. Another small earthquake at 08:33 yesterday.
3/2/2019 7:00 AM 0.00 0.0 M M M
3/3/2019 7:00 AM 0.05 1.2 M 1.2 M
3/4/2019 7:00 AM 0.11 1.5 M 1.5 M Snowing big wet flakes. Snow on the ground 24 hours ago had melted during the day yesterday.
3/5/2019 7:00 AM 0.01 0.0 M T M Stopped snowing shortly after 7am. All new snow melted during day. Snow patches in shaded locations.
3/6/2019 7:00 AM 0.00 0.0 M T M
3/7/2019 7:00 AM 0.00 0.0 M T M Warm. Think it has been above freezing for more than 24 hours.
3/8/2019 7:00 AM 0.00 0.0 M T M
3/9/2019 7:00 AM 0.03 T M T M Skiff of fine snow w/graupel pellets from BB to small pea size. Graupel apparently fell at end of snow -- snow surface cratered by pellets. I heard the graupel about 12:30 am thinking it was raining.
3/10/2019 7:00 AM 0.00 0.0 M T M Warm temps and sun have reduced snow to patches in permanently shaded areas.
3/11/2019 7:00 AM 0.01 T M T M Raining at 05:30 MDT. Slight skiff of new snow.
3/12/2019 7:00 AM 0.53 T M T M NO Electricity/Internet 5:30 am to 3:30 pm!! Snow/rain mix overnight. This data input 5:15pm.
3/13/2019 7:00 AM 0.43 2.5 M 2.5 M Snowing heavily at 7am. Ground was bare at sunset.
3/14/2019 7:00 AM 0.43 1.5 M 4.0 M
3/15/2019 7:00 AM 0.00 0.0 M 3.5 M Crazy! Calm, cool & mostly sunny here. Front range & eastern plains blizzarding!
3/16/2019 7:00 AM 0.00 0.0 M 1.0 M Lots of bare ground. Shaded areas up to 5" depth.
3/17/2019 7:00 AM 0.00 0.0 M T M Snow in shaded areas up to 3" deep. Ground mostly bare.
3/18/2019 7:00 AM 0.00 0.0 M T M
3/19/2019 7:00 AM 0.00 0.0 M T M
3/20/2019 7:00 AM 0.00 0.0 M T M
3/21/2019 7:00 AM 0.00 0.0 M T M
3/22/2019 7:00 AM T 0.0 M T M
3/23/2019 7:00 AM 0.05 T M T M Rain, snow, sleet.
3/24/2019 7:00 AM 0.00 0.0 M T M
3/25/2019 7:00 AM 0.00 0.0 M T M
3/26/2019 7:00 AM 0.00 0.0 M T M
3/27/2019 7:00 AM 0.00 0.0 M 0.0 M Last snow patches back under the trees have melted.
3/28/2019 7:00 AM 0.00 0.0 M 0.0 M
3/29/2019 7:00 AM 0.00 0.0 M M M
3/30/2019 7:00 AM 0.00 0.0 M M M
3/31/2019 7:00 AM 0.00 0.0 M M M
4/1/2019 7:00 AM 0.10 0.6 M 0.0 M Mixed rain & snow in the morning turning to snow in the afternoon. The "new snow" reading is insulated from ground heat. Maybe 0.2" on the ground.
4/2/2019 7:00 AM 0.00 0.0 M T M Most of the snow on the ground is gone.
4/3/2019 7:00 AM 0.00 0.0 M 0.0 M
4/4/2019 7:00 AM 0.00 0.0 M 0.0 M
4/5/2019 7:00 AM 0.00 0.0 M 0.0 M
4/6/2019 7:00 AM 0.00 0.0 M M M
4/7/2019 7:00 AM 0.00 0.0 M M M
4/8/2019 7:00 AM 0.00 0.0 M M M
4/9/2019 7:00 AM 0.00 0.0 M M M
4/10/2019 7:00 AM 0.00 0.0 M M M
4/11/2019 7:00 AM 0.21 2.0 M 0.5 M Most snow melted frm ground heat.
4/12/2019 7:00 AM 0.00 0.0 M 0.0 M Yesteerday's snow is gone. Mountains look great!
4/13/2019 7:00 AM 0.00 0.0 M M M
4/14/2019 7:00 AM 0.00 0.0 M M M
4/15/2019 7:00 AM 0.00 0.0 M M M
4/16/2019 7:00 AM 0.00 0.0 M M M
4/17/2019 7:00 AM 0.00 0.0 M M M
4/18/2019 7:00 AM 0.00 0.0 M M M
4/19/2019 7:00 AM 0.00 0.0 M M M
4/20/2019 7:00 AM 0.00 0.0 M M M
4/21/2019 7:00 AM 0.00 0.0 M M M
4/22/2019 7:00 AM T 0.0 M 0.0 M Snow pellets for a few minutes in the afternoon.
4/23/2019 7:00 AM 0.08 0.0 M 0.0 M
4/24/2019 7:00 AM T M M M M
4/25/2019 7:00 AM 0.00 0.0 M M M
4/26/2019 7:00 AM 0.00 0.0 M M M
4/27/2019 7:00 AM 0.00 0.0 M M M
4/28/2019 7:00 AM 0.00 0.0 M M M
4/29/2019 7:00 AM 0.00 0.0 M M M
4/30/2019 7:00 AM 0.27 0.0 M 0.0 M Warm Rain did not turn to snow. --> Likely melting snow. SdC Creek up 12cfs; Ute up 26 cfs.
5/1/2019 7:00 AM 0.10 0.0 M 0.0 M
5/2/2019 7:00 AM 0.00 0.0 M M M
5/3/2019 7:00 AM 0.00 0.0 M M M
5/4/2019 7:00 AM 0.00 0.0 M M M
5/5/2019 7:00 AM 0.00 0.0 M M M
5/6/2019 7:00 AM 0.00 0.0 M M M
5/7/2019 7:00 AM 0.00 0.0 M M M
5/8/2019 7:00 AM 0.02 M M M M Hear it raining about 1:30 am. Fresh snow on mountains.
5/9/2019 7:00 AM 0.26 2.5 M 0.5 M Rain late afternoon turning to snow overnight. 7am - 0.08 rain in tube, funnel filled w/snow, snowing lightly.
5/10/2019 7:00 AM 0.60 2.5 M 0.5 M Slush in 4" tube. Little snow accumulation due to warm temps and ground heat. Rain or slush falling much of past 24 hrs. Very light slush falling at 7am.
5/11/2019 7:00 AM 0.24 0.0 M 0.0 M Rain much of night. Clearing now. Nor raining.
5/12/2019 7:00 AM 0.00 0.0 M M M
5/13/2019 7:00 AM 0.00 0.0 M M M Clear blue sky...
5/14/2019 7:00 AM 0.00 0.0 M M M
5/15/2019 7:00 AM 0.00 0.0 M M M
5/16/2019 7:00 AM 0.00 0.0 M M M
5/17/2019 7:00 AM 0.00 0.0 M M M
5/18/2019 7:00 AM 0.00 0.0 M M M
5/19/2019 7:00 AM 0.00 0.0 M M M
5/20/2019 7:00 AM 0.00 0.0 M M M
5/21/2019 7:00 AM 0.10 1.5 M 0.5 M Late afternoon showers. Snow started overnight and fine snow falling at 7am. Little snow on ground due to ground heat melting.
5/22/2019 7:00 AM 0.01 0.0 M 0.0 M Snow stopped shortly after 7a. Sprinkles a few times throughout the day.
5/23/2019 7:00 AM 0.00 0.0 M M M
5/24/2019 7:00 AM 0.00 0.0 M M M High winds. High 71F Low 26F. Current 30F. Clear sky, calm.
5/25/2019 7:00 AM 0.00 0.0 M M M
5/26/2019 7:00 AM 0.00 0.0 M M M
5/27/2019 7:00 AM 0.00 0.0 M M M
5/28/2019 7:00 AM 0.00 0.0 M M M
5/29/2019 7:00 AM 0.00 0.0 M M M
5/30/2019 7:00 AM 0.03 M M M M Late afternoon rain shower
5/31/2019 7:00 AM 0.00 0.0 M M M
6/1/2019 7:00 AM 0.00 0.0 M M M
6/2/2019 7:00 AM 0.00 0.0 M M M
6/3/2019 7:00 AM 0.04 M M M M Mid afternoon shower.
6/4/2019 7:00 AM 0.00 0.0 M M M
6/5/2019 7:00 AM 0.00 0.0 M M M
6/6/2019 7:00 AM 0.14 M M M M Afternoon showers.
6/7/2019 7:00 AM 0.16 M M M M Overnight T-Storm
6/8/2019 7:00 AM 0.00 0.0 M M M
6/9/2019 7:00 AM 0.00 0.0 M M M
6/10/2019 7:00 AM 0.00 0.0 M M M
6/11/2019 7:00 AM 0.18 M M M M Mid afternoon T-Shower.
6/12/2019 7:00 AM 0.00 0.0 M M M
6/13/2019 7:00 AM 0.00 0.0 M M M
6/14/2019 7:00 AM 0.04 M M M M Mid-afternoon shower
6/15/2019 7:00 AM 0.00 0.0 M M M
6/16/2019 7:00 AM 0.00 0.0 M M M
6/17/2019 7:00 AM 0.00 0.0 M M M
6/18/2019 7:00 AM 0.14 M M M M Late pm T-shower with rain after dark. Significant amount of NEW SNOW on Sangre de Cristos above 11,500 ft. Ridges and slopes that were totally bare are now completely white.
6/19/2019 7:00 AM 0.06 M M M M Mid-afternoon shower.
6/20/2019 7:00 AM 0.00 0.0 M M M
6/21/2019 7:00 AM 0.00 0.0 M M M
6/22/2019 7:00 AM 0.00 0.0 M M M
6/23/2019 7:00 AM 0.05 M M M M Fresh Snow on Sangre de Cristos to below timber line (~10,500 ft)
6/24/2019 7:00 AM 0.00 0.0 M M M
6/25/2019 7:00 AM 0.00 0.0 M M M
6/26/2019 7:00 AM 0.00 0.0 M M M
6/27/2019 7:00 AM 0.00 0.0 M M M
6/28/2019 7:00 AM 0.00 0.0 M M M
6/29/2019 7:00 AM 0.00 0.0 M M M
6/30/2019 7:00 AM 0.00 0.0 M M M
7/1/2019 7:00 AM 0.66 M M M M First T-Storm of the year. 2/3 of an inch in 25 minutes. Some small marble sized hail stones - no damage or accumulation.
7/2/2019 7:00 AM T M M M M
7/3/2019 7:00 AM 0.00 0.0 M M M
7/4/2019 7:00 AM 0.00 0.0 M M M
7/5/2019 7:00 AM 0.00 0.0 M M M
7/6/2019 7:00 AM 0.00 0.0 M M M
7/7/2019 7:00 AM T M M M M Sprinkling fine mist.
7/8/2019 7:00 AM 0.00 0.0 M M M
7/9/2019 7:00 AM 0.00 0.0 M M M
7/10/2019 7:00 AM 0.00 0.0 M M M
7/11/2019 7:00 AM 0.00 0.0 M M M
7/12/2019 7:00 AM 0.00 0.0 M M M
7/13/2019 7:00 AM 0.00 0.0 M M M
7/14/2019 7:00 AM 0.00 0.0 M M M
7/15/2019 7:00 AM 0.00 0.0 M M M
7/16/2019 7:00 AM 0.05 M M M M Afternoon shower about 4:30 pm plus additional rain at 02:45 am.
7/17/2019 7:00 AM 0.00 0.0 M M M
7/18/2019 7:00 AM 0.00 0.0 M M M
7/19/2019 7:00 AM 0.00 0.0 M M M
7/20/2019 7:00 AM 0.00 0.0 M M M
7/21/2019 7:00 AM 0.00 0.0 M M M
7/22/2019 7:00 AM 0.00 0.0 M M M Crazy T-Storm light show to NE about 9:30pm. Sky was lit by constant flicker like a bad florescent tube with bright flashes every second or less. Followed by very high east wind from storm center much of the night.
7/23/2019 7:00 AM 0.84 M M M M Two afternoon T-Showers. 0.55 at 3pm, then 0.29 at 5pm.
7/24/2019 7:00 AM 0.18 M M M M Late afternoon t-shower about 4:30 pm.
7/25/2019 7:00 AM T M M M M
7/26/2019 7:00 AM 0.00 0.0 M M M
7/27/2019 7:00 AM 0.30 M M M M Late afternoon T-Shower starting about 5pm.
7/28/2019 7:00 AM 0.00 0.0 M M M
7/29/2019 7:00 AM 0.00 0.0 M M M
7/30/2019 7:00 AM 0.04 M M M M Raining about 12:30 am.
7/31/2019 7:00 AM 0.00 0.0 M M M
8/1/2019 7:00 AM 0.00 0.0 M M M
8/2/2019 7:00 AM 0.00 0.0 M M M
8/3/2019 7:00 AM T M M M M
8/4/2019 7:00 AM 0.00 0.0 M M M
8/5/2019 7:00 AM 0.00 0.0 M M M
8/6/2019 7:00 AM 0.04 0.0 M M M Corrected from 0.0 on 08/11/19.
8/7/2019 7:00 AM 0.00 0.0 M M M
8/8/2019 7:00 AM 0.00 0.0 M M M
8/9/2019 7:00 AM 0.00 0.0 M M M
8/10/2019 7:00 AM 0.01 M M M M
8/11/2019 7:00 AM 0.13 M M M M Soaking rain overnight.
8/12/2019 7:00 AM 0.17 M M M M Rain off and on through day and overnight.
8/13/2019 7:00 AM 0.00 0.0 M M 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 M 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 M M
8/20/2019 7:00 AM 0.00 0.0 M M M
8/21/2019 7:00 AM T M M M M Sprinkling about 9:30 pm from clouds over the mountain to the east when I took the dogs out. Sky clear overhead and to west.
8/22/2019 7:00 AM 0.00 0.0 M M M
8/23/2019 7:00 AM 0.00 0.0 M M M
8/24/2019 7:00 AM 0.00 0.0 M M 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 M M
8/28/2019 7:00 AM 0.00 0.0 M M M
8/29/2019 7:00 AM 0.00 0.0 M M M
8/30/2019 7:00 AM 0.00 0.0 M M M
8/31/2019 7:00 AM T M M M M Sprinkles about dark
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 0.00 0.0 M M M
9/5/2019 7:00 AM 0.00 0.0 M M M
9/6/2019 7:00 AM 0.00 0.0 M M M
9/7/2019 7:00 AM T M M M M
9/8/2019 7:00 AM T M M M M
9/9/2019 7:00 AM 0.03 M M M M Shower about 3 pm.
9/10/2019 7:00 AM 0.00 0.0 M M M
9/11/2019 7:00 AM 0.20 M M M M T-storm about 2am. Strong rain from 2am to 2:10.
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 0.44 M M M M Soaking Rain overnight.
9/17/2019 7:00 AM T 0.0 M M M
9/18/2019 7:00 AM 0.00 0.0 M M M
9/19/2019 7:00 AM 0.00 0.0 M M M
9/20/2019 7:00 AM T M M M 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 M 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



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
2/6/2019 2/13/2019 5:30 PM 8 T 0.5 M Snow depth very approximate, mostly in shaded areas up to 6 inches, but many areas with trace. Less than 50% of area bare/trace.
9/25/2019 10/02/2019 7:00 AM 8 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