Station Overview Station Location
Station Number WY-SH-31 Latitude 44.8766746520996
Station Name Dayton 0.3 N Longitude -107.263122558594
County Sheridan Elevation (ft) 3919



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 1.68 1.84 8 1.59 6 0.25 2 1 6 0 3.0 1 1
Nov 18 0.95 0.99 11 0.60 4 0.39 7 2 3 1 1.5 1 1
Dec 18 0.87 0.08 1 0.08 1 0.00 0 0 1 0 1.0 1 1
Jan 19 0.66 0.76 4 0.76 4 0.00 0 0 2 0 9.0 2 4
Feb 19 0.73 0.00 1 0.00 1 0.00 0 0 0 0 0.0 0 1
March 19 1.35 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 19 1.99 2.49 13 2.49 13 0.00 0 0 11 2 6.0 2 2
May 19 2.83 8.24 21 8.24 21 0.00 0 0 20 1 6.5 3 3
June 19 2.09 0.94 10 0.54 7 0.40 3 1 4 3 0.0 0 0
July 19 1.24 1.77 17 1.77 17 0.00 0 0 10 1 0.0 0 0
Aug 19 0.85 0.64 15 0.64 15 0.00 0 0 4 1 0.0 0 0
Sept 19 1.55 2.32 18 1.30 15 1.02 3 1 6 2 0.0 0 0
Water Year Totals: 16.79" 20.07" 119 days 18.01" 104 2.06" 15 days 5 67 days 11 days 27.0" 10 days 13 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 0.03
10/2/2018
10/3/2018
10/4/2018
10/5/2018 **
10/6/2018 0.25
10/7/2018
10/8/2018 0.52
10/9/2018
10/10/2018 0.03
10/11/2018
10/12/2018
10/13/2018
10/14/2018 0.51
10/15/2018
10/16/2018
10/17/2018
10/18/2018
10/19/2018
10/20/2018
10/21/2018
10/22/2018
10/23/2018
10/24/2018
10/25/2018
10/26/2018
10/27/2018
10/28/2018 0.35
10/29/2018
10/30/2018 0.15
10/31/2018
11/1/2018
11/2/2018 0.04
11/3/2018 **
11/4/2018 0.14
11/5/2018 0.05
11/6/2018
11/7/2018
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 0.51
11/18/2018
11/19/2018 T
11/20/2018
11/21/2018
11/22/2018 **
11/23/2018 **
11/24/2018 **
11/25/2018 **
11/26/2018 0.25
11/27/2018
11/28/2018
11/29/2018
11/30/2018
12/1/2018
12/2/2018
12/3/2018
12/4/2018
12/5/2018
12/6/2018
12/7/2018
12/8/2018
12/9/2018
12/10/2018
12/11/2018 0.08
12/12/2018
12/13/2018
12/14/2018
12/15/2018
12/16/2018
12/17/2018
12/18/2018
12/19/2018
12/20/2018
12/21/2018
12/22/2018
12/23/2018
12/24/2018
12/25/2018
12/26/2018
12/27/2018
12/28/2018
12/29/2018
12/30/2018
12/31/2018
Day of YearDaily PrcpMultiday Prcp
1/1/2019
1/2/2019 0.00
1/3/2019
1/4/2019
1/5/2019
1/6/2019
1/7/2019 0.00
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
1/19/2019
1/20/2019
1/21/2019
1/22/2019 0.50
1/23/2019
1/24/2019 0.26
1/25/2019
1/26/2019
1/27/2019
1/28/2019
1/29/2019
1/30/2019
1/31/2019
2/1/2019 0.00
2/2/2019
2/3/2019
2/4/2019
2/5/2019
2/6/2019
2/7/2019
2/8/2019
2/9/2019
2/10/2019
2/11/2019
2/12/2019
2/13/2019
2/14/2019
2/15/2019
2/16/2019
2/17/2019
2/18/2019
2/19/2019
2/20/2019
2/21/2019
2/22/2019
2/23/2019
2/24/2019
2/25/2019
2/26/2019
2/27/2019
2/28/2019
3/1/2019
3/2/2019
3/3/2019
3/4/2019
3/5/2019
3/6/2019
3/7/2019
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
3/23/2019
3/24/2019
3/25/2019
3/26/2019
3/27/2019
3/28/2019
3/29/2019
3/30/2019
3/31/2019
Day of YearDaily PrcpMultiday Prcp
4/1/2019
4/2/2019 0.13
4/3/2019
4/4/2019
4/5/2019
4/6/2019
4/7/2019
4/8/2019
4/9/2019
4/10/2019 0.27
4/11/2019 0.76
4/12/2019
4/13/2019
4/14/2019
4/15/2019 0.16
4/16/2019 0.03
4/17/2019 0.08
4/18/2019
4/19/2019
4/20/2019
4/21/2019 0.10
4/22/2019 0.36
4/23/2019
4/24/2019
4/25/2019 0.15
4/26/2019
4/27/2019 0.33
4/28/2019 T
4/29/2019 T
4/30/2019 0.12
5/1/2019 0.20
5/2/2019
5/3/2019 0.10
5/4/2019
5/5/2019
5/6/2019 0.51
5/7/2019
5/8/2019 0.87
5/9/2019 0.20
5/10/2019
5/11/2019 0.78
5/12/2019 0.04
5/13/2019 T
5/14/2019
5/15/2019 0.05
5/16/2019
5/17/2019 0.80
5/18/2019 0.40
5/19/2019 0.11
5/20/2019 0.05
5/21/2019
5/22/2019 0.95
5/23/2019 0.30
5/24/2019 0.14
5/25/2019 0.02
5/26/2019
5/27/2019 0.26
5/28/2019 1.66
5/29/2019 0.74
5/30/2019
5/31/2019 0.06
6/1/2019
6/2/2019
6/3/2019
6/4/2019
6/5/2019
6/6/2019
6/7/2019
6/8/2019 **
6/9/2019 **
6/10/2019 0.40
6/11/2019 0.05
6/12/2019
6/13/2019
6/14/2019
6/15/2019
6/16/2019 0.16
6/17/2019
6/18/2019
6/19/2019
6/20/2019
6/21/2019 0.15
6/22/2019 T
6/23/2019
6/24/2019 0.18
6/25/2019 T
6/26/2019
6/27/2019 T
6/28/2019
6/29/2019
6/30/2019
Day of YearDaily PrcpMultiday Prcp
7/1/2019 0.05
7/2/2019 0.26
7/3/2019
7/4/2019 0.27
7/5/2019 0.02
7/6/2019 0.22
7/7/2019
7/8/2019
7/9/2019 0.14
7/10/2019
7/11/2019
7/12/2019 0.11
7/13/2019 0.04
7/14/2019
7/15/2019
7/16/2019 0.30
7/17/2019
7/18/2019
7/19/2019
7/20/2019
7/21/2019
7/22/2019
7/23/2019
7/24/2019 0.00
7/25/2019 0.36
7/26/2019 0.00
7/27/2019 0.00
7/28/2019 0.00
7/29/2019 T
7/30/2019 0.00
7/31/2019 0.00
8/1/2019 0.00
8/2/2019 0.00
8/3/2019
8/4/2019
8/5/2019
8/6/2019 0.00
8/7/2019
8/8/2019
8/9/2019 T
8/10/2019 0.00
8/11/2019 0.03
8/12/2019
8/13/2019
8/14/2019
8/15/2019
8/16/2019
8/17/2019
8/18/2019
8/19/2019 0.00
8/20/2019 0.00
8/21/2019
8/22/2019 0.00
8/23/2019
8/24/2019 0.57
8/25/2019 0.00
8/26/2019 0.02
8/27/2019
8/28/2019
8/29/2019 0.00
8/30/2019 0.02
8/31/2019 0.00
9/1/2019
9/2/2019 0.00
9/3/2019
9/4/2019 0.00
9/5/2019
9/6/2019 0.00
9/7/2019 0.00
9/8/2019 T
9/9/2019 0.13
9/10/2019 0.00
9/11/2019 0.06
9/12/2019 0.95
9/13/2019
9/14/2019
9/15/2019
9/16/2019
9/17/2019 0.00
9/18/2019 0.09
9/19/2019
9/20/2019
9/21/2019 0.05
9/22/2019 0.02
9/23/2019
9/24/2019
9/25/2019 0.00
9/26/2019
9/27/2019 T
9/28/2019 **
9/29/2019 **
9/30/2019 1.02



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2018 6:00 AM 0.03 0.0 M 0.0 M
10/8/2018 6:00 AM 0.52 0.0 M 0.0 M
10/10/2018 5:45 AM 0.03 0.0 M 0.0 M Light snow this a.m.-no accumulation, melting as it lands
10/14/2018 5:30 AM 0.51 3.0 0.32 3.0 0.32 Rain transitions to snow-
10/28/2018 7:45 AM 0.35 0.0 M 0.0 M
10/30/2018 6:00 AM 0.15 M M M M
11/2/2018 6:00 AM 0.04 0.0 M 0.0 M
11/5/2018 6:00 AM 0.05 0.0 M 0.0 M
11/17/2018 7:00 AM 0.51 1.5 0.27 1.5 0.27 Rain to snow last P.M.
11/19/2018 6:15 AM T 0.0 M 0.0 M skiff of sleet this A.M.
12/11/2018 4:25 AM 0.08 1.0 0.08 1.0 0.08 Light snow at this A.M.-calm winds, 32 degrees
1/2/2019 5:30 AM 0.00 0.0 M 4.5 0.52
1/7/2019 5:30 AM 0.00 0.0 M 3.0 0.60
1/22/2019 5:30 AM 0.50 6.0 0.50 6.0 M
1/24/2019 4:30 AM 0.26 3.0 0.26 9.0 0.78
2/1/2019 7:00 AM 0.00 0.0 M 2.0 0.85
4/2/2019 6:00 AM 0.13 0.0 M 0.0 M
4/10/2019 5:30 AM 0.27 0.0 M 0.0 M Rain changed over to snow, accumulation slight on grassy areas only at this time
4/11/2019 5:30 AM 0.76 5.0 0.76 5.0 0.76
4/15/2019 5:30 AM 0.16 0.0 M 0.0 M
4/16/2019 5:30 AM 0.03 M M M M
4/17/2019 5:30 AM 0.08 M M M M
4/21/2019 5:30 AM 0.10 M M 0.0 M
4/22/2019 5:30 AM 0.36 M M 0.0 M
4/25/2019 5:30 AM 0.15 0.0 M 0.0 M
4/27/2019 6:30 AM 0.33 0.0 M 0.0 M
4/28/2019 5:30 AM T M M M M A few snowflakes flying this A.M.-no accumulation
4/29/2019 6:30 AM T T T M M
4/30/2019 5:00 AM 0.12 1.0 0.12 1.0 0.12 Wet snow falling at this time-
5/1/2019 4:45 AM 0.20 3.0 0.20 3.0 0.20 Wet snow falling this A.M.-Sticking mostly to grassy areas
5/3/2019 5:00 AM 0.10 0.0 M 0.0 M
5/6/2019 5:45 AM 0.51 1.5 0.35 1.5 0.35 rain to wet snow,
5/8/2019 5:00 AM 0.87 0.0 M 0.0 M
5/9/2019 5:00 AM 0.20 0.0 M 0.0 M
5/11/2019 6:00 AM 0.78 0.0 M 0.0 M Raining this a.m.-
5/12/2019 7:00 AM 0.04 0.0 M 0.0 M
5/13/2019 7:00 AM T 0.0 M 0.0 M
5/15/2019 5:00 AM 0.05 0.0 M 0.0 M
5/17/2019 4:00 AM 0.80 0.0 M 0.0 M
5/18/2019 6:00 AM 0.40 0.0 M 0.0 M
5/19/2019 7:30 AM 0.11 0.0 M 0.0 M
5/20/2019 6:30 AM 0.05 0.0 M 0.0 M
5/22/2019 4:30 AM 0.95 2.0 0.55 2.0 0.55 Heavy rain /wet snow falling at this A.M.-Snow accumulation on grassy areas only
5/23/2019 5:00 AM 0.30 0.0 M 0.0 M
5/24/2019 5:00 AM 0.14 0.0 M 0.0 M
5/25/2019 7:00 AM 0.02 0.0 M 0.0 M
5/27/2019 6:30 AM 0.26 0.0 M 0.0 M Steady, good rain this A.M.--
5/28/2019 5:15 AM 1.66 0.0 M 0.0 M Consistent rain last 24 hrs.---
5/29/2019 5:00 AM 0.74 0.0 M 0.0 M
5/31/2019 7:00 AM 0.06 0.0 M 0.0 M
6/11/2019 5:00 AM 0.05 0.0 M 0.0 M
6/16/2019 7:00 AM 0.16 0.0 M 0.0 M
6/21/2019 4:45 AM 0.15 0.0 M M M
6/22/2019 6:00 AM T 0.0 M 0.0 M
6/24/2019 5:15 AM 0.18 0.0 M 0.0 M
6/25/2019 5:00 AM T 0.0 M 0.0 M
6/27/2019 5:00 AM T M M M M
7/1/2019 7:00 AM 0.05 0.0 M 0.0 M
7/2/2019 5:15 AM 0.26 M M M M
7/4/2019 7:30 AM 0.27 M M M M
7/5/2019 4:45 AM 0.02 0.0 M 0.0 M
7/6/2019 6:00 AM 0.22 0.0 M 0.0 M
7/9/2019 5:00 AM 0.14 0.0 M 0.0 M
7/12/2019 4:30 AM 0.11 0.0 M 0.0 M
7/13/2019 7:00 AM 0.04 M M M M
7/16/2019 4:45 AM 0.30 M M M M
7/24/2019 4:45 AM 0.00 0.0 M 0.0 M
7/25/2019 5:00 AM 0.36 0.0 M 0.0 M Heavy rain-thunderstorm approx. 8 pm last evening
7/26/2019 5:15 AM 0.00 0.0 M 0.0 M
7/27/2019 4:45 AM 0.00 0.0 M 0.0 M Clear skies-Warm
7/28/2019 5:45 AM 0.00 0.0 M 0.0 M
7/29/2019 4:45 AM T 0.0 M 0.0 M
7/30/2019 4:45 AM 0.00 0.0 M 0.0 M
7/31/2019 5:00 AM 0.00 0.0 M 0.0 M
8/1/2019 5:00 AM 0.00 0.0 M 0.0 M
8/2/2019 5:00 AM 0.00 0.0 M 0.0 M
8/6/2019 4:45 AM 0.00 0.0 M 0.0 M
8/9/2019 5:00 AM T 0.0 M 0.0 M
8/10/2019 6:00 AM 0.00 0.0 M 0.0 M
8/11/2019 6:00 AM 0.03 0.0 M 0.0 M
8/19/2019 6:30 AM 0.00 0.0 M 0.0 M
8/20/2019 5:00 AM 0.00 0.0 M 0.0 M
8/22/2019 5:00 AM 0.00 0.0 M 0.0 M
8/24/2019 6:00 AM 0.57 0.0 M 0.0 M
8/25/2019 7:00 AM 0.00 0.0 M 0.0 M
8/26/2019 7:00 AM 0.02 0.0 M 0.0 M
8/29/2019 5:00 AM 0.00 0.0 M 0.0 M
8/30/2019 5:00 AM 0.02 0.0 M 0.0 M
8/31/2019 7:00 AM 0.00 0.0 M 0.0 M
9/2/2019 7:00 AM 0.00 0.0 M 0.0 M
9/4/2019 5:00 AM 0.00 0.0 M 0.0 M
9/6/2019 5:00 AM 0.00 0.0 M 0.0 M
9/7/2019 7:00 AM 0.00 0.0 M 0.0 M
9/8/2019 7:00 AM T 0.0 M 0.0 M
9/9/2019 5:30 AM 0.13 0.0 M 0.0 M
9/10/2019 5:00 AM 0.00 0.0 M 0.0 M
9/11/2019 5:00 AM 0.06 0.0 M 0.0 M
9/12/2019 5:00 AM 0.95 0.0 M 0.0 M
9/17/2019 5:00 AM 0.00 0.0 M 0.0 M
9/18/2019 5:00 AM 0.09 0.0 M 0.0 M
9/21/2019 7:00 AM 0.05 0.0 M 0.0 M
9/22/2019 7:00 AM 0.02 0.0 M 0.0 M
9/25/2019 5:15 AM 0.00 0.0 M 0.0 M
9/27/2019 5:00 AM T 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/5/2018 10/06/2018 7:00 AM 2 0.25 0.0 0.00
11/3/2018 11/04/2018 6:30 AM 2 0.14 0.0 0.00
11/22/2018 11/26/2018 7:00 AM 5 0.25 0.0 M
6/8/2019 6/10/2019 7:00 AM 3 0.40 0.0 0.00
9/28/2019 9/30/2019 4:30 AM 3 1.02 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