Station Overview Station Location
Station Number MT-MH-16 Latitude 46.42725
Station Name Roundup 2.8 ESE Longitude -108.4892333
County Musselshell Elevation (ft) 3547



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 19 0.98 0.74 18 0.74 16 0.00 2 1 8 0 11.0 4 0
Nov 19 0.43 0.69 24 0.69 18 0.00 6 3 8 0 8.5 6 0
Dec 19 0.40 0.08 23 0.04 17 0.04 6 3 2 0 0.0 0 0
Jan 20 0.36 0.19 22 0.15 16 0.04 6 3 4 0 2.0 2 0
Feb 20 0.32 0.44 17 0.20 7 0.24 10 5 3 0 2.5 2 0
March 20 0.74 0.81 19 0.79 11 0.02 8 4 6 0 5.6 2 1
April 20 1.42 1.37 21 0.77 15 0.60 6 3 7 0 5.0 3 0
May 20 2.33 3.24 21 2.64 19 0.60 2 1 12 0 0.0 0 0
June 20 2.67 5.83 18 5.68 16 0.15 2 1 11 0 0.0 0 0
July 20 1.61 1.14 20 0.87 18 0.27 2 1 6 0 0.0 0 0
Aug 20 1.14 0.74 21 0.74 21 0.00 0 0 5 0 0.0 0 0
Sept 20 1.22 0.62 17 0.62 11 0.00 6 3 2 0 0.0 0 0
Water Year Totals: 13.62" 15.89" 241 days 13.93" 185 1.96" 56 days 28 74 days 0 days 34.6" 19 days 1 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
10/1/2019
10/2/2019 0.02
10/3/2019
10/4/2019 0.00
10/5/2019
10/6/2019 0.00
10/7/2019
10/8/2019
10/9/2019 0.04
10/10/2019 0.36
10/11/2019 0.00
10/12/2019
10/13/2019 0.00
10/14/2019
10/15/2019 **
10/16/2019 0.00
10/17/2019 0.00
10/18/2019 0.00
10/19/2019
10/20/2019 0.02
10/21/2019 0.00
10/22/2019
10/23/2019 0.16
10/24/2019 0.00
10/25/2019
10/26/2019 0.10
10/27/2019 0.02
10/28/2019
10/29/2019 0.02
10/30/2019
10/31/2019
11/1/2019 **
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.20
11/5/2019 0.04
11/6/2019
11/7/2019 0.07
11/8/2019
11/9/2019 0.00
11/10/2019 0.16
11/11/2019 0.06
11/12/2019 0.00
11/13/2019 **
11/14/2019 0.00
11/15/2019 0.00
11/16/2019
11/17/2019 **
11/18/2019 0.00
11/19/2019 0.00
11/20/2019 0.02
11/21/2019 0.00
11/22/2019
11/23/2019 0.00
11/24/2019 0.00
11/25/2019 0.00
11/26/2019
11/27/2019
11/28/2019 0.00
11/29/2019 0.04
11/30/2019 0.10
12/1/2019 0.00
12/2/2019
12/3/2019 **
12/4/2019 0.00
12/5/2019 **
12/6/2019 0.02
12/7/2019 0.00
12/8/2019
12/9/2019 **
12/10/2019 0.02
12/11/2019 0.00
12/12/2019
12/13/2019 0.02
12/14/2019 0.02
12/15/2019 0.00
12/16/2019
12/17/2019 0.00
12/18/2019 0.00
12/19/2019
12/20/2019 0.00
12/21/2019 0.00
12/22/2019 0.00
12/23/2019 0.00
12/24/2019 0.00
12/25/2019
12/26/2019 0.00
12/27/2019 0.00
12/28/2019 0.00
12/29/2019
12/30/2019 0.00
12/31/2019
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.00
1/2/2020 0.00
1/3/2020
1/4/2020 0.00
1/5/2020
1/6/2020 0.00
1/7/2020
1/8/2020 0.00
1/9/2020 0.00
1/10/2020 0.04
1/11/2020 0.00
1/12/2020
1/13/2020
1/14/2020 **
1/15/2020 0.02
1/16/2020 0.00
1/17/2020 0.03
1/18/2020 0.03
1/19/2020
1/20/2020
1/21/2020 **
1/22/2020 0.02
1/23/2020 0.00
1/24/2020
1/25/2020
1/26/2020 0.00
1/27/2020 0.05
1/28/2020 **
1/29/2020 0.00
1/30/2020 0.00
1/31/2020 0.00
2/1/2020
2/2/2020
2/3/2020
2/4/2020 **
2/5/2020 0.00
2/6/2020 **
2/7/2020 0.00
2/8/2020
2/9/2020 0.11
2/10/2020 0.00
2/11/2020
2/12/2020 0.04
2/13/2020 0.05
2/14/2020
2/15/2020
2/16/2020 **
2/17/2020 0.02
2/18/2020 **
2/19/2020 0.12
2/20/2020 0.00
2/21/2020 0.00
2/22/2020
2/23/2020
2/24/2020 **
2/25/2020 0.10
2/26/2020
2/27/2020
2/28/2020 0.00
2/29/2020
3/1/2020
3/2/2020 **
3/3/2020 0.00
3/4/2020
3/5/2020 0.00
3/6/2020 0.00
3/7/2020
3/8/2020 0.24
3/9/2020 0.00
3/10/2020
3/11/2020 0.00
3/12/2020
3/13/2020
3/14/2020 **
3/15/2020 0.02
3/16/2020 0.30
3/17/2020
3/18/2020 0.03
3/19/2020 0.02
3/20/2020 0.04
3/21/2020
3/22/2020 0.16
3/23/2020 **
3/24/2020 0.00
3/25/2020
3/26/2020 0.00
3/27/2020
3/28/2020
3/29/2020 **
3/30/2020 0.00
3/31/2020
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.37
4/2/2020 0.00
4/3/2020 0.00
4/4/2020 0.00
4/5/2020
4/6/2020 **
4/7/2020 0.00
4/8/2020
4/9/2020
4/10/2020 **
4/11/2020 0.60
4/12/2020 0.20
4/13/2020 0.00
4/14/2020
4/15/2020 0.00
4/16/2020 0.05
4/17/2020
4/18/2020
4/19/2020 0.03
4/20/2020
4/21/2020 0.00
4/22/2020 0.00
4/23/2020 0.05
4/24/2020 0.06
4/25/2020
4/26/2020 0.00
4/27/2020 **
4/28/2020 0.00
4/29/2020
4/30/2020 0.01
5/1/2020 0.05
5/2/2020 0.00
5/3/2020
5/4/2020 0.17
5/5/2020 0.00
5/6/2020
5/7/2020 0.82
5/8/2020 0.08
5/9/2020 0.05
5/10/2020 0.00
5/11/2020
5/12/2020 0.14
5/13/2020 0.10
5/14/2020
5/15/2020 0.14
5/16/2020 0.52
5/17/2020 0.00
5/18/2020
5/19/2020
5/20/2020
5/21/2020 0.50
5/22/2020
5/23/2020 **
5/24/2020 0.60
5/25/2020 0.04
5/26/2020 0.03
5/27/2020
5/28/2020 0.00
5/29/2020 0.00
5/30/2020 0.00
5/31/2020
6/1/2020
6/2/2020 0.03
6/3/2020
6/4/2020 0.00
6/5/2020 0.00
6/6/2020
6/7/2020 0.34
6/8/2020 0.19
6/9/2020
6/10/2020 0.00
6/11/2020 0.00
6/12/2020
6/13/2020
6/14/2020
6/15/2020 0.00
6/16/2020
6/17/2020 0.03
6/18/2020 0.64
6/19/2020
6/20/2020 0.04
6/21/2020 0.15
6/22/2020
6/23/2020 **
6/24/2020 0.15
6/25/2020 0.16
6/26/2020
6/27/2020
6/28/2020 0.90
6/29/2020 2.60
6/30/2020 0.60
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.16
7/2/2020
7/3/2020 0.00
7/4/2020 0.03
7/5/2020 0.18
7/6/2020
7/7/2020
7/8/2020 0.24
7/9/2020 0.24
7/10/2020 0.02
7/11/2020 0.00
7/12/2020
7/13/2020
7/14/2020 0.00
7/15/2020
7/16/2020 0.00
7/17/2020 **
7/18/2020 0.27
7/19/2020
7/20/2020 0.00
7/21/2020 0.00
7/22/2020
7/23/2020 0.00
7/24/2020
7/25/2020
7/26/2020 0.00
7/27/2020 0.00
7/28/2020 0.00
7/29/2020
7/30/2020 0.00
7/31/2020 0.00
8/1/2020 0.00
8/2/2020 0.00
8/3/2020
8/4/2020 0.40
8/5/2020 0.00
8/6/2020 0.00
8/7/2020
8/8/2020
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 0.00
8/13/2020
8/14/2020 0.16
8/15/2020
8/16/2020 0.00
8/17/2020
8/18/2020 0.00
8/19/2020 0.00
8/20/2020 0.00
8/21/2020 0.10
8/22/2020 0.00
8/23/2020
8/24/2020
8/25/2020 0.00
8/26/2020 0.04
8/27/2020 0.00
8/28/2020
8/29/2020 0.00
8/30/2020
8/31/2020 0.04
9/1/2020 0.00
9/2/2020
9/3/2020
9/4/2020 0.00
9/5/2020
9/6/2020
9/7/2020 0.20
9/8/2020 0.42
9/9/2020 0.00
9/10/2020 0.00
9/11/2020
9/12/2020 0.00
9/13/2020 0.00
9/14/2020
9/15/2020 0.00
9/16/2020
9/17/2020 0.00
9/18/2020
9/19/2020
9/20/2020
9/21/2020 **
9/22/2020 0.00
9/23/2020
9/24/2020
9/25/2020 **
9/26/2020 0.00
9/27/2020 0.00
9/28/2020
9/29/2020 **
9/30/2020 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2019 8:00 AM 0.02 1.0 M M M
10/4/2019 8:00 AM 0.00 0.0 M M M
10/6/2019 8:00 AM 0.00 0.0 M M M
10/9/2019 8:00 AM 0.04 6.0 M M M
10/10/2019 8:00 AM 0.36 2.0 M M M
10/11/2019 8:00 AM 0.00 0.0 M M M
10/13/2019 8:00 AM 0.00 0.0 M M M
10/17/2019 8:00 AM 0.00 0.0 M M M
10/18/2019 8:00 AM 0.00 0.0 M M M
10/20/2019 8:00 AM 0.02 M M M M
10/21/2019 8:00 AM 0.00 0.0 M M M
10/23/2019 8:00 AM 0.16 M M M M
10/24/2019 8:00 AM 0.00 0.0 M M M
10/26/2019 8:00 AM 0.10 2.0 0.10 M M
10/27/2019 8:00 AM 0.02 M M M M
10/29/2019 8:00 AM 0.02 M M M M
11/3/2019 8:00 AM 0.00 0.0 M M M
11/4/2019 8:00 AM 0.20 1.5 M M M
11/5/2019 8:00 AM 0.04 M M M M
11/7/2019 8:00 AM 0.07 1.0 M M M
11/9/2019 8:00 AM 0.00 0.0 M M M
11/10/2019 8:00 AM 0.16 1.5 M M M
11/11/2019 8:00 AM 0.06 1.5 M M M
11/12/2019 8:00 AM 0.00 0.0 M M M
11/15/2019 8:00 AM 0.00 0.0 M M M
11/19/2019 8:00 AM 0.00 0.0 M M M
11/20/2019 8:00 AM 0.02 M M M M just a trace of snow
11/21/2019 8:00 AM 0.00 0.0 M M M
11/23/2019 8:00 AM 0.00 0.0 M M M
11/24/2019 8:00 AM 0.00 0.0 M M M
11/25/2019 8:00 AM 0.00 0.0 M M M
11/28/2019 8:00 AM 0.00 0.0 M M M
11/29/2019 8:00 AM 0.04 1.0 M M M
11/30/2019 8:00 AM 0.10 2.0 M M M
12/1/2019 8:00 AM 0.00 0.0 M M M no new snow
12/7/2019 8:00 AM 0.00 0.0 M M M
12/11/2019 8:00 AM 0.00 0.0 M M M
12/13/2019 8:00 AM 0.02 M M M M light snow
12/14/2019 8:00 AM 0.02 M M M M snow fulerys and ice fog
12/15/2019 8:00 AM 0.00 0.0 M M M
12/17/2019 8:00 AM 0.00 0.0 M M M
12/18/2019 8:00 AM 0.00 0.0 M M M
12/20/2019 8:00 AM 0.00 0.0 M M M
12/21/2019 8:00 AM 0.00 0.0 M M M
12/22/2019 8:00 AM 0.00 0.0 M M M
12/23/2019 8:00 AM 0.00 0.0 M M M
12/24/2019 8:00 AM 0.00 0.0 M M M
12/26/2019 8:00 AM 0.00 0.0 M M M
12/27/2019 8:00 AM 0.00 0.0 M M M
12/28/2019 8:00 AM 0.00 0.0 M M M
12/30/2019 8:00 AM 0.00 0.0 M M M
1/1/2020 8:00 AM 0.00 0.0 M M M
1/2/2020 8:00 AM 0.00 0.0 M M M
1/4/2020 8:00 AM 0.00 0.0 M M M
1/6/2020 8:00 AM 0.00 0.0 M M M
1/8/2020 8:00 AM 0.00 0.0 M M M
1/9/2020 8:00 AM 0.00 0.0 M M M
1/10/2020 8:00 AM 0.04 1.0 M M M about 1 inch of powdered snow
1/11/2020 8:00 AM 0.00 0.0 M M M
1/16/2020 8:00 AM 0.00 0.0 M M M
1/17/2020 8:00 AM 0.03 1.0 M M M
1/18/2020 8:00 AM 0.03 M M M M
1/23/2020 8:00 AM 0.00 0.0 M M M
1/26/2020 8:00 AM 0.00 0.0 M M M
1/27/2020 8:00 AM 0.05 M M M M
1/30/2020 8:00 AM 0.00 0.0 M M M
1/31/2020 8:00 AM 0.00 0.0 M M M
2/9/2020 8:00 AM 0.11 1.5 M M M 1.5 inches of snow
2/10/2020 8:00 AM 0.00 0.0 M M M
2/12/2020 8:00 AM 0.04 1.0 M M M
2/13/2020 8:00 AM 0.05 M M M M
2/20/2020 8:00 AM 0.00 0.0 M M M
2/21/2020 8:00 AM 0.00 0.0 M M M
2/28/2020 8:00 AM 0.00 0.0 M M M
3/5/2020 8:00 AM 0.00 0.0 M M M
3/6/2020 8:00 AM 0.00 0.0 M M M
3/8/2020 8:00 AM 0.24 3.1 M M M snow started in the early hours
3/9/2020 8:00 AM 0.00 0.0 M M M
3/11/2020 8:00 AM 0.00 0.0 M M M
3/16/2020 8:00 AM 0.30 0.0 M M M
3/18/2020 8:00 AM 0.03 M M 1.0 M started snowing around 10am
3/19/2020 8:00 AM 0.02 M M M M
3/20/2020 8:00 AM 0.04 M M M M
3/22/2020 8:00 AM 0.16 2.5 0.16 M M
3/26/2020 8:00 AM 0.00 0.0 M M M
4/1/2020 8:00 AM 0.37 3.0 M M M
4/2/2020 8:00 AM 0.00 0.0 M M M
4/3/2020 8:00 AM 0.00 0.0 M M M
4/4/2020 8:00 AM 0.00 0.0 M M M
4/12/2020 8:00 AM 0.20 1.0 M M M
4/13/2020 8:00 AM 0.00 0.0 M M M
4/15/2020 8:00 AM 0.00 0.0 M M M
4/16/2020 8:00 AM 0.05 1.0 M M M
4/19/2020 8:00 AM 0.03 M M M M
4/21/2020 8:00 AM 0.00 0.0 M M M
4/22/2020 8:00 AM 0.00 0.0 M M M
4/23/2020 8:00 AM 0.05 M M M M
4/24/2020 8:00 AM 0.06 M M M M
4/26/2020 8:00 AM 0.00 0.0 M M M
4/30/2020 8:00 AM 0.01 M M M M
5/1/2020 8:00 AM 0.05 M M M M
5/2/2020 8:00 AM 0.00 0.0 M M M
5/4/2020 8:00 AM 0.17 M M M M
5/5/2020 8:00 AM 0.00 0.0 M M M
5/7/2020 8:00 AM 0.82 M M M M
5/8/2020 8:00 AM 0.08 M M M M
5/9/2020 8:00 AM 0.05 M M M M
5/10/2020 8:00 AM 0.00 0.0 M M M
5/12/2020 8:00 AM 0.14 M M M M
5/13/2020 8:00 AM 0.10 M M M M
5/15/2020 8:00 AM 0.14 M M M M
5/16/2020 8:00 AM 0.52 M M M M
5/17/2020 8:00 AM 0.00 0.0 M M M
5/21/2020 8:00 AM 0.50 M M M M
5/25/2020 8:00 AM 0.04 M M M M
5/26/2020 8:00 AM 0.03 M M M M
5/28/2020 8:00 AM 0.00 0.0 M M M
5/29/2020 8:00 AM 0.00 0.0 M M M
5/30/2020 8:00 AM 0.00 0.0 M M M
6/2/2020 8:00 AM 0.03 M M M M
6/4/2020 8:00 AM 0.00 0.0 M M M
6/5/2020 8:00 AM 0.00 0.0 M M M
6/7/2020 8:00 AM 0.34 M M M M
6/8/2020 8:00 AM 0.19 M M M M
6/10/2020 8:00 AM 0.00 0.0 M M M
6/11/2020 8:00 AM 0.00 0.0 M M M
6/15/2020 8:00 AM 0.00 0.0 M M M
6/17/2020 8:00 AM 0.03 M M M M
6/18/2020 8:00 AM 0.64 M M M M
6/20/2020 8:00 AM 0.04 M M M M
6/21/2020 8:00 AM 0.15 M M M M
6/25/2020 8:00 AM 0.16 M M M M
6/28/2020 8:00 AM 0.90 M M M M Heavy rain and small hail
6/29/2020 8:00 AM 2.60 M M M M
6/30/2020 8:00 AM 0.60 M M M M
7/1/2020 8:00 AM 0.16 M M M M
7/3/2020 8:00 AM 0.00 0.0 M M M
7/4/2020 8:00 AM 0.03 M M M M
7/5/2020 8:00 AM 0.18 M M M M
7/8/2020 8:00 AM 0.24 M M M M some various size hail stones
7/9/2020 8:00 AM 0.24 M M M M
7/10/2020 8:00 AM 0.02 M M M M
7/11/2020 8:00 AM 0.00 0.0 M M M
7/14/2020 8:00 AM 0.00 0.0 M M M
7/16/2020 8:00 AM 0.00 0.0 M M M
7/20/2020 8:00 AM 0.00 0.0 M M M
7/21/2020 8:00 AM 0.00 0.0 M M M
7/23/2020 8:00 AM 0.00 0.0 M M M
7/26/2020 8:00 AM 0.00 0.0 M M M
7/27/2020 8:00 AM 0.00 0.0 M M M
7/28/2020 8:00 AM 0.00 0.0 M M M
7/30/2020 8:00 AM 0.00 0.0 M M M
7/31/2020 8:00 AM 0.00 0.0 M M M
8/1/2020 8:00 AM 0.00 0.0 M M M
8/2/2020 8:00 AM 0.00 0.0 M M M
8/4/2020 8:00 AM 0.40 M M M M
8/5/2020 8:00 AM 0.00 0.0 M M M
8/6/2020 8:00 AM 0.00 0.0 M M M
8/9/2020 8:00 AM 0.00 0.0 M M M
8/10/2020 8:00 AM 0.00 0.0 M M M
8/11/2020 8:00 AM 0.00 0.0 M M M
8/12/2020 8:00 AM 0.00 0.0 M M M
8/14/2020 8:00 AM 0.16 M M M M
8/16/2020 8:00 AM 0.00 0.0 M M M
8/18/2020 8:00 AM 0.00 0.0 M M M
8/19/2020 8:00 AM 0.00 0.0 M M M
8/20/2020 8:00 AM 0.00 0.0 M M M
8/21/2020 8:00 AM 0.10 M M M M
8/22/2020 8:00 AM 0.00 0.0 M M M
8/25/2020 8:00 AM 0.00 0.0 M M M
8/26/2020 8:00 AM 0.04 M M M M
8/27/2020 8:00 AM 0.00 0.0 M M M
8/29/2020 8:00 AM 0.00 0.0 M M M
8/31/2020 8:00 AM 0.04 M M M M
9/1/2020 8:00 AM 0.00 0.0 M M M
9/4/2020 8:00 AM 0.00 0.0 M M M
9/7/2020 8:00 AM 0.20 M M M M
9/8/2020 8:00 AM 0.42 M M M M
9/9/2020 8:00 AM 0.00 0.0 M M M
9/10/2020 8:00 AM 0.00 0.0 M M M
9/12/2020 8:00 AM 0.00 0.0 M M M
9/13/2020 8:00 AM 0.00 0.0 M M M
9/15/2020 8:00 AM 0.00 0.0 M M M
9/17/2020 8:00 AM 0.00 0.0 M M M
9/27/2020 8:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/15/2019 10/16/2019 8:00 AM 2 0.00 M M
11/1/2019 11/02/2019 8:00 AM 2 0.00 M M
11/13/2019 11/14/2019 8:00 AM 2 0.00 M M
11/17/2019 11/18/2019 8:00 AM 2 0.00 M M
12/3/2019 12/04/2019 8:00 AM 2 0.00 M M
12/5/2019 12/06/2019 8:00 AM 2 0.02 1.0 M
12/9/2019 12/10/2019 8:00 AM 2 0.02 M M
1/14/2020 1/15/2020 8:00 AM 2 0.02 1.0 M
1/21/2020 1/22/2020 8:00 AM 2 0.02 M M
1/28/2020 1/29/2020 8:00 AM 2 0.00 M M
2/4/2020 2/05/2020 8:00 AM 2 0.00 M M
2/6/2020 2/07/2020 8:00 AM 2 0.00 M M
2/16/2020 2/17/2020 8:00 AM 2 0.02 1.0 M Just started snowing at 7:15 am
2/18/2020 2/19/2020 8:00 AM 2 0.12 1.5 M
2/24/2020 2/25/2020 8:00 AM 2 0.10 1.0 M
3/2/2020 3/03/2020 8:00 AM 2 0.00 M M
3/14/2020 3/15/2020 8:00 AM 2 0.02 1.5 M
3/23/2020 3/24/2020 8:00 AM 2 0.00 M M
3/29/2020 3/30/2020 8:00 AM 2 0.00 M M
4/6/2020 4/07/2020 8:00 AM 2 0.00 M M
4/10/2020 4/11/2020 3:00 PM 2 0.60 4.0 M
4/27/2020 4/28/2020 8:00 AM 2 0.00 M M
5/23/2020 5/24/2020 8:00 AM 2 0.60 M M
6/23/2020 6/24/2020 8:00 AM 2 0.15 M M
7/17/2020 7/18/2020 8:00 AM 2 0.27 M M
9/21/2020 9/22/2020 8:00 AM 2 0.00 M M
9/25/2020 9/26/2020 8:00 AM 2 0.00 M M
9/29/2020 9/30/2020 8:00 AM 2 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