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 16 1.68 1.09 18 1.09 18 0.00 0 0 7 0 0.0 0 0
Nov 16 0.95 0.79 11 0.79 11 0.00 0 0 3 1 6.0 2 3
Dec 16 0.87 1.88 24 1.88 24 0.00 0 0 8 1 30.5 8 9
Jan 17 0.66 1.04 19 0.59 16 0.45 3 1 5 1 9.0 4 5
Feb 17 0.73 0.94 12 0.94 12 0.00 0 0 8 1 15.5 5 2
March 17 1.35 2.66 17 2.66 17 0.00 0 0 10 4 7.5 3 4
April 17 1.99 4.04 16 4.04 16 0.00 0 0 13 1 2.0 1 1
May 17 2.83 2.69 16 2.69 16 0.00 0 0 11 3 0.0 0 0
June 17 2.09 0.87 9 0.87 9 0.00 0 0 7 2 0.0 0 0
July 17 1.24 0.66 5 0.66 5 0.00 0 0 4 1 0.0 0 0
Aug 17 0.85 0.44 4 0.44 4 0.00 0 0 4 0 0.0 0 0
Sept 17 1.55 2.16 10 2.16 10 0.00 0 0 7 3 0.0 0 0
Water Year Totals: 16.79" 19.26" 161 days 18.81" 158 0.45" 3 days 1 87 days 18 days 70.5" 23 days 24 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
10/1/2016
10/2/2016
10/3/2016 0.02
10/4/2016 0.50
10/5/2016 0.05
10/6/2016 0.00
10/7/2016 0.07
10/8/2016
10/9/2016
10/10/2016
10/11/2016 0.05
10/12/2016 0.19
10/13/2016 0.00
10/14/2016 0.00
10/15/2016
10/16/2016
10/17/2016
10/18/2016 0.21
10/19/2016 0.00
10/20/2016
10/21/2016 0.00
10/22/2016
10/23/2016 0.00
10/24/2016 0.00
10/25/2016 0.00
10/26/2016 0.00
10/27/2016 0.00
10/28/2016
10/29/2016
10/30/2016
10/31/2016 0.00
11/1/2016
11/2/2016
11/3/2016 0.00
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016 0.00
11/9/2016 0.00
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016 0.56
11/18/2016 M
11/19/2016
11/20/2016
11/21/2016 0.00
11/22/2016 0.06
11/23/2016
11/24/2016 T
11/25/2016 0.00
11/26/2016 0.00
11/27/2016
11/28/2016 0.00
11/29/2016 0.17
11/30/2016
12/1/2016
12/2/2016 0.00
12/3/2016 0.00
12/4/2016 0.00
12/5/2016 0.15
12/6/2016
12/7/2016
12/8/2016 0.00
12/9/2016
12/10/2016 0.17
12/11/2016 0.18
12/12/2016 0.00
12/13/2016 0.00
12/14/2016 0.05
12/15/2016 T
12/16/2016 0.21
12/17/2016 0.18
12/18/2016 0.00
12/19/2016 0.00
12/20/2016 0.00
12/21/2016 0.00
12/22/2016
12/23/2016
12/24/2016
12/25/2016 0.00
12/26/2016 0.79
12/27/2016 0.00
12/28/2016 0.00
12/29/2016 0.00
12/30/2016 0.00
12/31/2016 0.15
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017 0.09
1/3/2017 T
1/4/2017 0.00
1/5/2017
1/6/2017 0.00
1/7/2017
1/8/2017
1/9/2017 **
1/10/2017 **
1/11/2017 0.45
1/12/2017 0.30
1/13/2017
1/14/2017
1/15/2017 0.00
1/16/2017 0.00
1/17/2017 0.00
1/18/2017
1/19/2017 0.00
1/20/2017 0.02
1/21/2017
1/22/2017
1/23/2017 0.00
1/24/2017 0.12
1/25/2017 0.06
1/26/2017
1/27/2017
1/28/2017 0.00
1/29/2017
1/30/2017 0.00
1/31/2017 0.00
2/1/2017 0.41
2/2/2017 0.07
2/3/2017 0.04
2/4/2017
2/5/2017
2/6/2017 0.00
2/7/2017 0.09
2/8/2017 0.16
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017 0.00
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017 0.02
2/21/2017
2/22/2017
2/23/2017 T
2/24/2017 0.13
2/25/2017
2/26/2017
2/27/2017 0.00
2/28/2017 0.02
3/1/2017 T
3/2/2017 0.12
3/3/2017
3/4/2017
3/5/2017
3/6/2017 0.20
3/7/2017 0.00
3/8/2017
3/9/2017 T
3/10/2017 0.40
3/11/2017
3/12/2017
3/13/2017 T
3/14/2017
3/15/2017
3/16/2017
3/17/2017 0.10
3/18/2017
3/19/2017
3/20/2017
3/21/2017 0.33
3/22/2017 T
3/23/2017
3/24/2017 0.62
3/25/2017
3/26/2017 0.39
3/27/2017 0.00
3/28/2017 0.04
3/29/2017 0.25
3/30/2017 0.00
3/31/2017 0.21
Day of YearDaily PrcpMultiday Prcp
4/1/2017 1.10
4/2/2017 0.02
4/3/2017 0.08
4/4/2017 0.06
4/5/2017
4/6/2017
4/7/2017
4/8/2017 0.10
4/9/2017
4/10/2017 0.52
4/11/2017
4/12/2017 0.01
4/13/2017
4/14/2017 0.00
4/15/2017
4/16/2017
4/17/2017
4/18/2017 0.03
4/19/2017 0.04
4/20/2017 0.23
4/21/2017 0.00
4/22/2017 0.11
4/23/2017
4/24/2017
4/25/2017
4/26/2017
4/27/2017 T
4/28/2017 1.53
4/29/2017 0.21
4/30/2017
5/1/2017 0.07
5/2/2017 0.06
5/3/2017
5/4/2017
5/5/2017 0.00
5/6/2017
5/7/2017
5/8/2017 0.04
5/9/2017 T
5/10/2017 0.07
5/11/2017
5/12/2017
5/13/2017
5/14/2017 0.11
5/15/2017
5/16/2017 0.07
5/17/2017 T
5/18/2017 2.00
5/19/2017 0.03
5/20/2017 0.00
5/21/2017
5/22/2017 0.01
5/23/2017 0.12
5/24/2017
5/25/2017
5/26/2017
5/27/2017 0.11
5/28/2017
5/29/2017
5/30/2017 T
5/31/2017
6/1/2017
6/2/2017 T
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017
6/8/2017
6/9/2017
6/10/2017 0.12
6/11/2017 0.02
6/12/2017 0.07
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017 0.15
6/18/2017 0.02
6/19/2017
6/20/2017
6/21/2017 0.41
6/22/2017
6/23/2017
6/24/2017 T
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017 0.08
6/30/2017
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017
7/3/2017
7/4/2017
7/5/2017
7/6/2017
7/7/2017 0.06
7/8/2017
7/9/2017
7/10/2017
7/11/2017 0.11
7/12/2017
7/13/2017
7/14/2017
7/15/2017
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017
7/21/2017 0.06
7/22/2017
7/23/2017
7/24/2017
7/25/2017
7/26/2017
7/27/2017
7/28/2017 0.43
7/29/2017 T
7/30/2017
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017
8/5/2017 0.02
8/6/2017
8/7/2017
8/8/2017
8/9/2017
8/10/2017
8/11/2017
8/12/2017
8/13/2017
8/14/2017 0.03
8/15/2017 0.36
8/16/2017
8/17/2017
8/18/2017 0.03
8/19/2017
8/20/2017
8/21/2017
8/22/2017
8/23/2017
8/24/2017
8/25/2017
8/26/2017
8/27/2017
8/28/2017
8/29/2017
8/30/2017
8/31/2017
9/1/2017
9/2/2017
9/3/2017
9/4/2017
9/5/2017
9/6/2017
9/7/2017
9/8/2017
9/9/2017
9/10/2017
9/11/2017
9/12/2017
9/13/2017
9/14/2017 T
9/15/2017 0.96
9/16/2017 0.62
9/17/2017
9/18/2017
9/19/2017 T
9/20/2017 0.08
9/21/2017
9/22/2017 0.03
9/23/2017 0.17
9/24/2017 0.25
9/25/2017 0.05
9/26/2017 T
9/27/2017
9/28/2017
9/29/2017
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2016 6:00 AM 0.02 M M M M
10/4/2016 5:30 AM 0.50 M M M M
10/5/2016 5:00 AM 0.05 M M M M
10/6/2016 5:30 AM 0.00 0.0 M M M
10/7/2016 8:00 AM 0.07 M M M M
10/11/2016 5:15 AM 0.05 M M M M
10/12/2016 5:30 AM 0.19 M M M M Rain changing over to snow showers last 24 hours- 20 degrees this a.m.
10/13/2016 6:00 AM 0.00 0.0 M M M
10/14/2016 6:30 AM 0.00 0.0 M M M
10/18/2016 5:30 AM 0.21 M M M M rain showers off and on last 24 Hrs.-
10/19/2016 6:00 AM 0.00 0.0 M M M
10/21/2016 6:00 AM 0.00 0.0 M M M
10/23/2016 7:00 AM 0.00 0.0 M M M
10/24/2016 6:00 AM 0.00 0.0 M M M
10/25/2016 7:00 AM 0.00 0.0 M M M
10/26/2016 6:00 AM 0.00 0.0 M M M
10/27/2016 6:15 AM 0.00 0.0 M M M
10/31/2016 6:00 AM 0.00 0.0 M M M
11/3/2016 6:00 AM 0.00 0.0 M M M
11/8/2016 6:00 AM 0.00 0.0 M M M
11/9/2016 5:30 AM 0.00 0.0 M M M
11/17/2016 5:00 AM 0.56 3.0 0.38 M M Rain over to snow around midnight-
11/18/2016 6:30 AM M M M 8.0 0.80
11/21/2016 5:30 AM 0.00 0.0 M 1.5 0.31
11/22/2016 6:00 AM 0.06 M M M M Warming and a little rain last PM- snow on ground mostly melted
11/24/2016 7:00 AM T M M M M little bit of showers this A.M. 32 degrees
11/25/2016 5:30 AM 0.00 0.0 M 0.0 M
11/26/2016 7:00 AM 0.00 0.0 0.00 0.0 0.00 22 Degrees this a.m. and clear-calm winds
11/28/2016 6:00 AM 0.00 0.0 M 0.0 M Clear and calm this A.M.
11/29/2016 5:00 AM 0.17 3.0 0.17 3.0 0.17 Lots of wind and some blowing snow last P.M. 30 degrees this A.M.
12/2/2016 5:30 AM 0.00 0.0 M M M Clear and cold this A.M.
12/3/2016 7:00 AM 0.00 0.0 M M M
12/4/2016 7:00 AM 0.00 0.0 M M M clear and mild this a.m.
12/5/2016 5:00 AM 0.15 3.0 0.15 3.0 0.15 snowing hard and wind this a.m.
12/8/2016 6:15 AM 0.00 0.0 M 3.0 0.40 Clear and cold this a.m.-12 below zero
12/10/2016 4:00 AM 0.17 3.0 0.17 5.0 0.30 light coating of the fluffy stuff this a.m.-12 degrees ABOVE zero this morning and calm winds
12/11/2016 6:30 AM 0.18 3.0 0.18 8.0 0.82 2-3 more inches of the powdery stuff fell last p.m. 10 degrees above this a.m. with calm winds
12/12/2016 6:15 AM 0.00 0.0 M M M Wind and cold this a.m.-no new precip. 5 above zero
12/13/2016 5:30 AM 0.00 0.0 M M M Clear and cold-calm winds and 5 degrees above
12/14/2016 5:30 AM 0.05 0.5 0.05 M M half inch dusting of powder snow this a.m.-calm winds and 12 degrees above
12/15/2016 5:30 AM T M M M M Light dusting this a.m. 15 degrees above and calm
12/16/2016 5:00 AM 0.21 3.0 0.21 M M 3 inches of fresh powder snow, wndy and 10 above zero this morning
12/17/2016 7:00 AM 0.18 3.0 0.18 9.0 0.85 3 inches more powder ,calm winds and 25 below zero this a.m.
12/18/2016 7:00 AM 0.00 0.0 M M M Clear, calm and 8 below zero this A.M.
12/19/2016 6:30 AM 0.00 0.0 M M M Clear, Calm and 2 above zero
12/20/2016 5:30 AM 0.00 0.0 M M M 16 above zero and calm winds-
12/21/2016 6:15 AM 0.00 0.0 M 6.0 0.96 clear, warmer and breezy this a.m. 32 degrees
12/25/2016 7:00 AM 0.00 0.0 M 6.0 0.76 Overcast, breezy and 15 above-
12/26/2016 6:00 AM 0.79 12.0 0.79 M M Clear and slight wind this a.m. 18 degrees above
12/27/2016 5:30 AM 0.00 0.0 M 9.0 0.94 Clear, calm and 3 above zero this morning
12/28/2016 5:30 AM 0.00 0.0 M M M Windy and warmer 32 degrees
12/29/2016 5:30 AM 0.00 0.0 M M M Clear and calm 16 above
12/30/2016 6:00 AM 0.00 0.0 M 8.0 0.97 Clear and steady breeze 50 DEGREES ABOVE
12/31/2016 7:00 AM 0.15 3.0 0.15 M M Sunny and calm 6 above zero
1/2/2017 8:00 AM 0.09 1.0 0.09 M M White, fluffy coating this a.m. 5 above zero and calm winds
1/3/2017 6:00 AM T M M M M Light coating of snow and COLD 15 below zero
1/4/2017 6:30 AM 0.00 0.0 M 10.0 1.60 Clear and 6 below zero this a.m.
1/6/2017 6:00 AM 0.00 0.0 M M M Clear and calm and 4 above zero!
1/12/2017 6:00 AM 0.30 5.0 0.30 11.0 1.60
1/15/2017 7:00 AM 0.00 0.0 M M M
1/16/2017 7:00 AM 0.00 0.0 M M M
1/17/2017 6:00 AM 0.00 0.0 M M M
1/19/2017 6:30 AM 0.00 0.0 M 12.0 1.84
1/20/2017 6:00 AM 0.02 M M M M 32 degrees and sleet-
1/23/2017 6:00 AM 0.00 0.0 M M M
1/24/2017 5:00 AM 0.12 2.0 0.12 M M
1/25/2017 6:30 AM 0.06 1.0 0.06 14.0 3.22 1 inch light snow in last 24 hrs.
1/28/2017 7:00 AM 0.00 0.0 M M M
1/30/2017 6:30 AM 0.00 0.0 M M M 52 DEGREES ABOVE this a.m.!! Warm , slight wind-
1/31/2017 6:00 AM 0.00 0.0 M 11.0 3.17 30 degrees, slight wind-
2/1/2017 6:00 AM 0.41 9.0 0.41 M M Calm winds-snow still falling
2/2/2017 6:00 AM 0.07 1.0 0.07 M M
2/3/2017 5:30 AM 0.04 T M M M 8 below zero and fog-skiff of snow last 24 hours
2/6/2017 5:30 AM 0.00 0.0 0.00 12.0 3.30 Clear skies, slight wind and 15 degrees
2/7/2017 5:30 AM 0.09 1.5 0.09 M M 15 degrees this a.m. and calm winds, light coating of the white fluffy stuff-
2/8/2017 6:00 AM 0.16 2.0 0.16 M M 5 above and calm winds
2/13/2017 5:30 AM 0.00 0.0 0.00 6.0 2.00
2/20/2017 7:00 AM 0.02 M M 0.0 M Sunshine and 33 degrees-
2/23/2017 6:00 AM T M M M M
2/24/2017 5:00 AM 0.13 2.0 0.13 M M
2/27/2017 6:00 AM 0.00 0.0 M T M Most snow has disappeared, few small patches here and there-
2/28/2017 5:30 AM 0.02 T M T M Skiff of snow this a.m. and 15 degrees,
3/1/2017 5:30 AM T 0.0 M 0.0 M 16 degrees, calm winds this a.m.
3/2/2017 6:00 AM 0.12 2.0 0.12 2.0 0.12 Little snowstorm last night, everything covered 2" or so, 23 degrees this morning
3/6/2017 6:00 AM 0.20 2.5 0.14 2.5 0.14 Rain transitioned to snow
3/7/2017 6:00 AM 0.00 0.0 M 1.5 0.17 Windy and clearing this a.m. Some snow still left from last little storm...
3/9/2017 6:00 AM T T M M M Skiff of snow this a.m. still snowing-light
3/10/2017 6:00 AM 0.40 3.0 0.40 3.0 0.40
3/13/2017 6:00 AM T 0.0 0.00 T M All snow on ground is mostly gone, alittle here and there in shady areas. We experienced a slight rain shower yesterday eve., nothing to measure though--
3/17/2017 6:00 AM 0.10 0.0 M 0.0 M Sprinkles off and on yesterday-
3/21/2017 5:30 AM 0.33 0.0 0.00 0.0 0.00
3/22/2017 6:00 AM T M M M M Fog this a.m. and 36 degrees-
3/24/2017 5:30 AM 0.62 M M M M
3/26/2017 7:00 AM 0.39 M M M M
3/27/2017 7:00 AM 0.00 0.0 M 0.0 M
3/28/2017 7:00 AM 0.04 M M M M Light rain this a.m.-
3/29/2017 6:00 AM 0.25 M M M M
3/30/2017 7:00 AM 0.00 0.0 M M M
3/31/2017 6:00 AM 0.21 0.0 0.00 0.0 0.00
4/1/2017 7:00 AM 1.10 0.0 0.00 0.0 0.00 HEAVY Fog this a.m.
4/2/2017 7:00 AM 0.02 M M M M
4/3/2017 5:30 AM 0.08 0.0 0.00 0.0 0.00
4/4/2017 5:30 AM 0.06 M M M M 30 degrees this a.m.-rain showers changing to snow early, some snow sticking to grassy areas......
4/8/2017 7:00 AM 0.10 M M M M
4/10/2017 5:30 AM 0.52 M M M M Rain changing over to all snow last P,M,-approx. 2 inchs snow on grassy areas
4/12/2017 5:30 AM 0.01 0.0 M 0.0 M
4/14/2017 6:00 AM 0.00 0.0 M 0.0 M
4/18/2017 5:30 AM 0.03 M M M M
4/19/2017 5:30 AM 0.04 M M M M Steady, light rain this A.M.
4/20/2017 6:00 AM 0.23 M M M M
4/21/2017 6:00 AM 0.00 0.0 M 0.0 M
4/22/2017 7:00 AM 0.11 0.0 M 0.0 M
4/27/2017 6:00 AM T 0.0 M 0.0 M
4/28/2017 6:00 AM 1.53 2.0 0.48 2.0 M rain and snow mix
4/29/2017 7:00 AM 0.21 0.0 M 0.0 M
5/1/2017 6:00 AM 0.07 M M M M
5/2/2017 6:30 AM 0.06 M M M M
5/5/2017 7:00 AM 0.00 0.0 M 0.0 M
5/8/2017 7:00 AM 0.04 0.0 M 0.0 M
5/9/2017 6:00 AM T 0.0 M 0.0 M Steady, light rain this a.m.
5/10/2017 5:30 AM 0.07 M M M M
5/14/2017 6:00 AM 0.11 0.0 M 0.0 M
5/16/2017 6:30 AM 0.07 M M M M
5/17/2017 6:00 AM T 0.0 M 0.0 M
5/18/2017 5:30 AM 2.00 0.0 M 0.0 M
5/19/2017 6:00 AM 0.03 0.0 M 0.0 M
5/20/2017 7:00 AM 0.00 0.0 M 0.0 M
5/22/2017 6:00 AM 0.01 0.0 M 0.0 M
5/23/2017 6:00 AM 0.12 0.0 M 0.0 M
5/27/2017 7:00 AM 0.11 M M M M
5/30/2017 6:00 AM T 0.0 M 0.0 M
6/2/2017 7:00 AM T M M M M
6/10/2017 7:00 AM 0.12 M M M M
6/11/2017 7:00 AM 0.02 M M M M
6/12/2017 7:00 AM 0.07 M M M M
6/17/2017 7:00 AM 0.15 M M M M
6/18/2017 8:00 AM 0.02 M M M M
6/21/2017 7:00 AM 0.41 M M M M
6/24/2017 7:00 AM T M M M M
6/29/2017 7:00 AM 0.08 M M M M
7/7/2017 7:00 AM 0.06 M M M M
7/11/2017 7:00 AM 0.11 M M M M
7/21/2017 7:00 AM 0.06 M M M M
7/28/2017 7:00 AM 0.43 M M M M
7/29/2017 7:00 AM T M M M M
8/5/2017 7:00 AM 0.02 M M M M
8/14/2017 6:00 AM 0.03 M M M M
8/15/2017 7:00 AM 0.36 M M M M
8/18/2017 7:00 AM 0.03 M M M M
9/14/2017 5:00 AM T M M M M
9/15/2017 6:00 AM 0.96 0.0 0.00 0.0 0.00
9/16/2017 7:00 AM 0.62 M M M M
9/19/2017 5:30 AM T M M M M
9/20/2017 6:00 AM 0.08 M M M M
9/22/2017 6:00 AM 0.03 M M M M
9/23/2017 8:00 AM 0.17 M M M M
9/24/2017 7:00 AM 0.25 M M M M
9/25/2017 6:00 AM 0.05 M M M M
9/26/2017 6:00 AM T M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
1/9/2017 1/11/2017 5:30 AM 3 0.45 M M Approximately 4 inches new snow in last two days-



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