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USGS Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 06125600 Musselshell River ab Big Coulee Creek at Lavina MT


Golden Valley County, Montana
Hydrologic Unit Code 10040201
Latitude  46°17'20.6", Longitude 108°56'15.4" NAD83
Drainage area 2,691  square miles
Gage datum 3,419.65 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 2011-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1       154 206 863 500 199 116 121 24  
2       150 215 893 459 191 113 109 25  
3       146 217 935 429 197 111 102    
4       136 213 967 421 194 108 99    
5       135 216 974 429 201 109 88    
6       139 235 952 427 204 110 86    
7       144 270 871 409 207 112 80    
8       148 293 801 393 202 115 74    
9       157 312 783 375 190 117 68    
10       215 334 706 363 186 115 65    
11       268 353 645 360 186 119 75    
12       264 400 590 349 196 113 77    
13       297 439 548 312 200 110 79    
14       266 446 529 293 191 111 80    
15       194 466 506 280 183 106 81    
16       167 520 462 279 181 103 81    
17       157 571 443 276 177 98 80    
18       149 642 462 272 172 103 79    
19       138 732 562 256 172 109 78    
20       133 780 706 242 170 109 79    
21       150 795 774 232 170 113 79    
22       199 748 747 231 173 122 79    
23       231 738 658 220 181 123 80    
24       226 755 636 210 234 121 81    
25       213 814 655 206 214 115 98    
26     49 202 831 593 208 181 111 103    
27     49 194 893 534 209 157 110 102    
28     53 199 971 557 215 144 111 99    
29     50 202 954 514 220 137 113 95    
30     48 202 895 521 216 126 122 98    
31     46   855   208 119   108