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 16 0.98 2.57 10 2.57 10 0.00 0 0 9 0 8.0 1 0
Nov 16 0.43 0.03 2 0.03 2 0.00 0 0 1 1 0.0 0 0
Dec 16 0.40 0.64 3 0.64 3 0.00 0 0 3 0 7.5 3 0
Jan 17 0.36 0.51 6 0.51 6 0.00 0 0 4 1 4.5 2 1
Feb 17 0.32 0.55 6 0.55 6 0.00 0 0 5 0 6.5 3 0
March 17 0.74 1.18 20 1.18 20 0.00 0 0 6 0 10.5 2 2
April 17 1.42 2.68 24 2.68 24 0.00 0 0 13 0 0.0 0 0
May 17 2.33 1.34 25 1.34 25 0.00 0 0 11 0 0.0 0 0
June 17 2.67 0.26 12 0.26 12 0.00 0 0 5 0 0.0 0 0
July 17 1.61 0.35 22 0.35 22 0.00 0 0 5 0 0.0 0 0
Aug 17 1.14 0.25 16 0.25 16 0.00 0 0 3 0 0.0 0 0
Sept 17 1.22 3.81 21 3.81 21 0.00 0 0 8 0 0.0 0 0
Water Year Totals: 13.62" 14.17" 167 days 14.17" 167 0.00" 0 days 0 73 days 2 days 37.0" 11 days 3 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 0.04
10/3/2016 0.50
10/4/2016 1.58
10/5/2016 0.24
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016 M
10/12/2016 0.00
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016 0.05
10/20/2016
10/21/2016
10/22/2016
10/23/2016 0.05
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016 0.07
10/30/2016 0.01
10/31/2016 0.03
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016 0.03
11/16/2016
11/17/2016 T
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016 0.01
12/16/2016 0.50
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016 0.13
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017 0.22
1/3/2017
1/4/2017 0.05
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017 0.00
1/10/2017 0.16
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017 T
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017 0.08
2/1/2017 0.02
2/2/2017
2/3/2017
2/4/2017 0.00
2/5/2017
2/6/2017
2/7/2017 0.28
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017 0.10
2/25/2017 0.10
2/26/2017
2/27/2017 0.05
2/28/2017
3/1/2017
3/2/2017 0.12
3/3/2017
3/4/2017 0.00
3/5/2017
3/6/2017 0.00
3/7/2017
3/8/2017 0.00
3/9/2017 0.40
3/10/2017 0.00
3/11/2017 0.00
3/12/2017
3/13/2017 0.00
3/14/2017
3/15/2017
3/16/2017 0.00
3/17/2017 0.00
3/18/2017
3/19/2017
3/20/2017 0.40
3/21/2017 0.00
3/22/2017
3/23/2017 0.02
3/24/2017 0.00
3/25/2017
3/26/2017 0.00
3/27/2017 0.00
3/28/2017 0.12
3/29/2017 0.00
3/30/2017 0.00
3/31/2017 0.12
Day of YearDaily PrcpMultiday Prcp
4/1/2017
4/2/2017 0.00
4/3/2017 0.02
4/4/2017 0.20
4/5/2017 0.00
4/6/2017
4/7/2017
4/8/2017
4/9/2017 0.10
4/10/2017 0.95
4/11/2017 0.01
4/12/2017 0.00
4/13/2017
4/14/2017 0.00
4/15/2017 0.04
4/16/2017 0.00
4/17/2017 0.00
4/18/2017
4/19/2017 0.28
4/20/2017 0.00
4/21/2017 0.00
4/22/2017 0.35
4/23/2017 0.02
4/24/2017 0.20
4/25/2017 0.00
4/26/2017 0.00
4/27/2017 0.03
4/28/2017 0.44
4/29/2017 0.04
4/30/2017 0.00
5/1/2017 0.00
5/2/2017 0.03
5/3/2017 0.13
5/4/2017 0.00
5/5/2017 0.00
5/6/2017 0.00
5/7/2017
5/8/2017 0.46
5/9/2017 0.00
5/10/2017 0.03
5/11/2017
5/12/2017 0.00
5/13/2017 0.00
5/14/2017 0.04
5/15/2017
5/16/2017 0.00
5/17/2017 0.17
5/18/2017 0.13
5/19/2017 0.00
5/20/2017 0.00
5/21/2017 0.00
5/22/2017 0.00
5/23/2017
5/24/2017
5/25/2017 0.03
5/26/2017 0.06
5/27/2017 0.04
5/28/2017
5/29/2017 0.22
5/30/2017 0.00
5/31/2017 0.00
6/1/2017 0.00
6/2/2017 0.05
6/3/2017 0.00
6/4/2017 0.00
6/5/2017 0.01
6/6/2017
6/7/2017
6/8/2017
6/9/2017
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017
6/16/2017
6/17/2017
6/18/2017
6/19/2017 0.10
6/20/2017 0.00
6/21/2017
6/22/2017 0.00
6/23/2017 0.00
6/24/2017 0.02
6/25/2017
6/26/2017
6/27/2017
6/28/2017 0.00
6/29/2017
6/30/2017 0.08
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017 0.00
7/3/2017 0.00
7/4/2017 0.00
7/5/2017 0.00
7/6/2017
7/7/2017 0.03
7/8/2017 0.00
7/9/2017
7/10/2017
7/11/2017 0.10
7/12/2017 0.00
7/13/2017 0.06
7/14/2017 0.00
7/15/2017 0.00
7/16/2017
7/17/2017 0.08
7/18/2017 0.00
7/19/2017 0.08
7/20/2017 0.00
7/21/2017 0.00
7/22/2017
7/23/2017 0.00
7/24/2017 0.00
7/25/2017
7/26/2017 0.00
7/27/2017 0.00
7/28/2017
7/29/2017 0.00
7/30/2017 0.00
7/31/2017
8/1/2017
8/2/2017
8/3/2017
8/4/2017 0.00
8/5/2017 0.21
8/6/2017
8/7/2017 0.00
8/8/2017 0.00
8/9/2017
8/10/2017
8/11/2017
8/12/2017
8/13/2017 0.00
8/14/2017 0.00
8/15/2017 0.02
8/16/2017
8/17/2017 0.00
8/18/2017
8/19/2017 0.00
8/20/2017 0.00
8/21/2017
8/22/2017 0.00
8/23/2017 0.00
8/24/2017 0.00
8/25/2017
8/26/2017 0.02
8/27/2017
8/28/2017 0.00
8/29/2017
8/30/2017
8/31/2017 0.00
9/1/2017
9/2/2017 0.00
9/3/2017
9/4/2017 0.00
9/5/2017
9/6/2017 0.00
9/7/2017 0.00
9/8/2017 0.00
9/9/2017
9/10/2017
9/11/2017
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.00
9/15/2017 1.20
9/16/2017 1.10
9/17/2017 0.15
9/18/2017 0.01
9/19/2017 0.08
9/20/2017 0.00
9/21/2017
9/22/2017 1.00
9/23/2017 0.25
9/24/2017
9/25/2017 0.02
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2016 8:00 AM 0.04 M M M M
10/3/2016 8:00 AM 0.50 M M M M Intermittent heave rain in the last12 hours
10/4/2016 8:00 AM 1.58 M M M M Heavy rain last 24 hours
10/5/2016 8:00 AM 0.24 M M M M
10/11/2016 8:00 AM M 8.0 M M 1.10 We have had 8 inches of wet snow since 9 PM last night {EDIT: Observer reported 8.00 of new precip but indicated in the notes that it was 8 inches of snow. Changed precip amount to NA and put 8 inches in the new snow category until observer can be contacted to verify. Submission Time Before EDIT: 10/11/2016 9:56 AM CoCoSTAFF DNT}
10/12/2016 8:00 AM 0.00 0.0 M M M No new snow but 19 degrees cold
10/19/2016 8:00 AM 0.05 M M M M MISTY RAIN
10/23/2016 8:00 AM 0.05 M M M M some time in the last 48 ours we got .05 inch trace of rain
10/29/2016 8:00 AM 0.07 M M M M MISTY RAIN
10/30/2016 8:00 AM 0.01 M M M M Just a trace of rain
10/31/2016 8:00 AM 0.03 M M M M
11/15/2016 8:00 AM 0.03 M M M M
11/17/2016 8:00 AM T T M M M
12/15/2016 8:00 AM 0.01 1.5 M M M {EDIT: Observer reported 1.5 of new snowfall with a SWE value of 10.00. SWE appears to be a typo. Changed SWE report of 10.00 to NA until observer can be contacted to verify. Submission Time Before EDIT: 12/15/2016 8:23 AM CoCoSSTAFF DNT}
12/16/2016 8:00 AM 0.50 5.0 M M M
12/26/2016 8:00 AM 0.13 1.0 M M M
1/2/2017 8:00 AM 0.22 3.5 M M M
1/4/2017 8:00 AM 0.05 M M M M we have received about 1/2 inches of powder snow in the last 24 hours. n
1/9/2017 8:00 AM 0.00 0.0 M M M Just a trace of new snow
1/10/2017 8:00 AM 0.16 M M M M We had 2 inches of new powder snow in the last 24 hours
1/20/2017 8:00 AM T M M M M Just a trace of rain
1/31/2017 8:00 AM 0.08 1.0 M 1.0 M
2/1/2017 8:00 AM 0.02 T M M M
2/4/2017 8:00 AM 0.00 0.0 M M M
2/7/2017 8:00 AM 0.28 4.0 M M M we got about 3 to 4 inches of new powder snow last night.
2/24/2017 8:00 AM 0.10 1.0 M M M
2/25/2017 8:00 AM 0.10 M M M M just a trace of snow
2/27/2017 8:00 AM 0.05 1.5 M M M one and half of new snow in the last 24 hours
3/2/2017 8:00 AM 0.12 2.0 M 2.0 M 2 inches of wet snow (MG from NJ set 12.50" precip to "NA", as looks to be a typo. Original report submitted 3/02/2017 1:39 PM)
3/4/2017 8:00 AM 0.00 0.0 M M M no snow or rain in the last 24 hours
3/6/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours
3/8/2017 8:00 AM 0.00 0.0 M M M no snow or rain in the last 24 hours
3/9/2017 8:00 AM 0.40 8.5 M 8.5 M we had 8.5 inches of wet snow last night and it melted done to .45 of an inch
3/10/2017 8:00 AM 0.00 0.0 M M M .4 inches of moisture and 3.5 inches of wet snow in the last 24 hours
3/11/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours but a lot of snow and ice on the grounds.
3/13/2017 8:00 AM 0.00 0.0 M M M no snow or rain in the last 24 hours
3/16/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours
3/17/2017 8:00 AM 0.00 0.0 M M M no rain or snow last 24 hours
3/20/2017 8:00 AM 0.40 M M M M
3/21/2017 8:00 AM 0.00 0.0 M M M No rain or snow in the last 24 hours
3/23/2017 8:00 AM 0.02 M M M M Just a trace of rain short shower about 6 pm
3/24/2017 8:00 AM 0.00 0.0 M M M no rain of snow last 24 hours
3/26/2017 8:00 AM 0.00 0.0 M M M no rain or snow last 24 hours
3/27/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours
3/28/2017 8:00 AM 0.12 M M M M .12 inches of rain last 24 hours
3/29/2017 8:00 AM 0.00 0.0 M M M No rain or snow last 24 hours
3/30/2017 8:00 AM 0.00 0.0 M M M no rain or snow last 24 hours
3/31/2017 8:00 AM 0.12 M M M M we received .12 inches of rain in that last 24 hours
4/2/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours
4/3/2017 8:00 AM 0.02 M M M M Just a trace of rain last 24 hours at Denali cabin ranch.
4/4/2017 8:00 AM 0.20 M M M M .20 inches of melted snow moisture from 2 inches of wet snow.
4/5/2017 8:00 AM 0.00 0.0 M M M No rain of snow in the last24 hours
4/9/2017 8:00 AM 0.10 M M M M about .10 inches of moisture, with heavy wet snow falling stedaly
4/10/2017 8:00 AM 0.95 M M M M .95 inch of moisture from 5 to 6 inches of wet snow in the last 24 hours.
4/11/2017 8:00 AM 0.01 M M M M Just a trace of moisture in the last 24 hours
4/12/2017 8:00 AM 0.00 0.0 M M M no rain or snow in the last 24 hours
4/14/2017 8:00 AM 0.00 0.0 M M M Just a trace of moisture in the last 24 hours
4/15/2017 8:00 AM 0.04 M M M M small amount of freezing rain, the west deck had a coating of ice on it!
4/16/2017 8:00 AM 0.00 0.0 M M M no rain or snow last 24 hours.
4/17/2017 8:00 AM 0.00 0.0 M M M no rain last 24 hours
4/19/2017 8:00 AM 0.28 M M M M Light steady rain soaking in as of 8 AM.28 inch of rain.
4/20/2017 8:00 AM 0.00 0.0 M M M no rain last 24 hours
4/21/2017 8:00 AM 0.00 0.0 M M M no rain last 24 hours
4/22/2017 8:00 AM 0.35 M M M M .35 inch from showers in the last 24 hours
4/23/2017 8:00 AM 0.02 M M M M just a short shower
4/24/2017 8:00 AM 0.20 M M M M Some rain , thunder and small hail here last evening
4/25/2017 8:00 AM 0.00 0.0 M M M
4/26/2017 8:00 AM 0.00 0.0 M M M no rain or snow last 24 hours
4/27/2017 8:00 AM 0.03 M M M M Just a trace of rain in the last 24 hours.
4/28/2017 8:00 AM 0.44 M M M M Heavy showers off and on in the last 24 hours
4/29/2017 8:00 AM 0.04 M M M M Just a small tract of showers
4/30/2017 8:00 AM 0.00 0.0 M M M
5/1/2017 8:00 AM 0.00 0.0 M M M
5/2/2017 8:00 AM 0.03 M M M M small showers in the last 24 hours
5/3/2017 8:00 AM 0.13 M M M M
5/4/2017 8:00 AM 0.00 0.0 M M M
5/5/2017 8:00 AM 0.00 0.0 M M M
5/6/2017 8:00 AM 0.00 0.0 M M M
5/8/2017 8:00 AM 0.46 M M M M Light to heave rain last night from the storm
5/9/2017 8:00 AM 0.00 0.0 M M M
5/10/2017 8:00 AM 0.03 M M M M
5/12/2017 8:00 AM 0.00 0.0 M M M
5/13/2017 8:00 AM 0.00 0.0 M M M
5/14/2017 8:00 AM 0.04 M M M M
5/16/2017 8:00 AM 0.00 0.0 M M M
5/17/2017 8:00 AM 0.17 M M M M
5/18/2017 8:00 AM 0.13 M M M M
5/19/2017 8:00 AM 0.00 0.0 M M M
5/20/2017 8:00 AM 0.00 0.0 M M M
5/21/2017 8:00 AM 0.00 0.0 M M M
5/22/2017 8:00 AM 0.00 0.0 M M M
5/25/2017 8:00 AM 0.03 M M M M
5/26/2017 8:00 AM 0.06 M M M M
5/27/2017 8:00 AM 0.04 M M M M
5/29/2017 8:00 AM 0.22 M M M M a heavy shower yesterday
5/30/2017 8:00 AM 0.00 0.0 M M M
5/31/2017 8:00 AM 0.00 0.0 M M M
6/1/2017 8:00 AM 0.00 0.0 M M M
6/2/2017 8:00 AM 0.05 M M M M
6/3/2017 8:00 AM 0.00 0.0 M M M
6/4/2017 8:00 AM 0.00 0.0 M M M
6/5/2017 8:00 AM 0.01 M M M M
6/19/2017 8:00 AM 0.10 M M M M I have been of the air the last 2 weeks due to a hip replacement operation.
6/20/2017 8:00 AM 0.00 0.0 M M M
6/22/2017 8:00 AM 0.00 0.0 M M M no rain
6/23/2017 8:00 AM 0.00 0.0 M M M
6/24/2017 8:00 AM 0.02 M M M M just a trace
6/28/2017 8:00 AM 0.00 0.0 M M M
6/30/2017 8:00 AM 0.08 M M M M light shower activity
7/2/2017 8:00 AM 0.00 0.0 M M M
7/3/2017 8:00 AM 0.00 0.0 M M M
7/4/2017 8:00 AM 0.00 0.0 M M M
7/5/2017 8:00 AM 0.00 0.0 M M M
7/7/2017 8:00 AM 0.03 M M M M
7/8/2017 8:00 AM 0.00 0.0 M M M
7/11/2017 8:00 AM 0.10 M M M M
7/12/2017 8:00 AM 0.00 0.0 M M M
7/13/2017 8:00 AM 0.06 M M M M
7/14/2017 8:00 AM 0.00 0.0 M M M
7/15/2017 8:00 AM 0.00 0.0 M M M
7/17/2017 8:00 AM 0.08 M M M M
7/18/2017 8:00 AM 0.00 0.0 M M M
7/19/2017 8:00 AM 0.08 M M M M
7/20/2017 8:00 AM 0.00 0.0 M M M
7/21/2017 8:00 AM 0.00 0.0 M M M
7/23/2017 8:00 AM 0.00 0.0 M M M
7/24/2017 8:00 AM 0.00 0.0 M M M
7/26/2017 8:00 AM 0.00 0.0 M M M
7/27/2017 8:00 AM 0.00 0.0 M M M
7/29/2017 8:00 AM 0.00 0.0 M M M
7/30/2017 8:00 AM 0.00 0.0 M M M
8/4/2017 8:00 AM 0.00 0.0 M M M
8/5/2017 8:00 AM 0.21 M M M M
8/7/2017 8:00 AM 0.00 0.0 M M M
8/8/2017 8:00 AM 0.00 0.0 M M M
8/13/2017 8:00 AM 0.00 0.0 M M M
8/14/2017 8:00 AM 0.00 0.0 M M M just a tracw of a shower
8/15/2017 8:00 AM 0.02 M M M M just a trace
8/17/2017 8:00 AM 0.00 0.0 M M M
8/19/2017 8:00 AM 0.00 0.0 M M M
8/20/2017 8:00 AM 0.00 0.0 M M M
8/22/2017 8:00 AM 0.00 0.0 M M M
8/23/2017 8:00 AM 0.00 0.0 M M M
8/24/2017 8:00 AM 0.00 0.0 M M M
8/26/2017 8:00 AM 0.02 M M M M
8/28/2017 8:00 AM 0.00 0.0 M M M
8/31/2017 8:00 AM 0.00 0.0 M M M
9/2/2017 8:00 AM 0.00 0.0 M M M
9/4/2017 8:00 AM 0.00 0.0 M M M
9/6/2017 8:00 AM 0.00 0.0 M M M
9/7/2017 8:00 AM 0.00 0.0 M M M
9/8/2017 8:00 AM 0.00 0.0 M M M
9/12/2017 8:00 AM 0.00 0.0 M M M
9/13/2017 8:00 AM 0.00 0.0 M M M
9/14/2017 8:12 AM 0.00 0.0 M M M steady rain lite to moderate most of he dy
9/15/2017 8:00 AM 1.20 M M M M heavy steady rain last 34 hours
9/16/2017 8:00 AM 1.10 M M M M steady rain off an on last 24 hours
9/17/2017 8:00 AM 0.15 M M M M Light rain yesterday afternoon
9/18/2017 8:00 AM 0.01 M M M M Just a trace
9/19/2017 8:00 AM 0.08 M M M M
9/20/2017 8:00 AM 0.00 0.0 M M M
9/22/2017 8:00 AM 1.00 M M M M Heavy rain all night
9/23/2017 8:00 AM 0.25 M M M M
9/25/2017 8:00 AM 0.02 M M M M
9/26/2017 8:00 AM 0.00 0.0 M M M
9/27/2017 8:00 AM 0.00 0.0 M M M
9/28/2017 8:00 AM 0.00 0.0 M M M
9/29/2017 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



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