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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).


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 06127500 Musselshell River at Musselshell MT


Musselshell County, Montana
Hydrologic Unit Code 10040202
Latitude  46°31'20.73", Longitude 108°06'31.94" NAD83
Drainage area 4,534  square miles
Gage datum 2,984.72 feet above NGVD29
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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 1927-10-01 -> 2019-09-30)

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 64 72 133 180 187 588 413 142 133 85 72 79
2 62 73 156 176 193 587 377 140 128 84 72 77
3 61 76 211 171 202 547 356 138 124 82 76 78
4 60 77 235 169 209 519 359 136 121 79 77 79
5 60 77 230 175 209 504 371 136 118 79 76 79
6 61 78 217 180 217 507 353 139 116 79 76 79
7 62 78 202 174 229 543 327 138 114 79 78 75
8 64 78 187 168 248 625 307 140 111 79 81 76
9 65 78 181 165 264 739 288 138 111 78 82 75
10 65 81 197 172 287 725 272 132 110 77 80 76
11 65 99 239 176 299 705 253 132 109 76 78 79
12 66 124 236 174 320 698 251 133 109 76 77 78
13 66 140 237 173 331 654 245 131 110 76 76 78
14 66 151 247 174 346 635 238 133 109 76 76 78
15 66 122 232 179 347 648 235 137 106 75 76 79
16 68 114 236 181 340 667 227 138 103 76 74 78
17 76 113 296 180 355 660 220 138 100 77 76 77
18 87 112 256 176 367 681 206 133 101 78 77 76
19 88 110 255 175 387 723 195 131 99 77 74 77
20 86 116 318 172 415 734 196 136 97 76 75 85
21 83 121 332 178 454 689 187 144 97 76 72 87
22 80 128 354 180 483 680 187 160 97 76 74 82
23 80 132 411 177 507 707 190 156 96 75 75 80
24 78 127 418 175 515 694 181 149 96 75 77 80
25 78 130 336 176 521 611 171 151 93 74 76 80
26 77 131 339 177 565 557 163 148 90 74 76 79
27 75 132 311 178 707 528 160 145 87 75 75 77
28 74 132 318 181 685 510 161 138 85 75 76 75
29 72 162 287 189 642 484 155 133 84 75 73 72
30 71   265 187 598 453 149 130 83 75 76 68
31 72   249   573   147 145   77   67