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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).

Updated June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)

Updated May 12, 2020 - USGS water-resources monitoring activities were suspended effective June 1, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)
USGS monitoring activities at this site was funded by our partner and USGS Cooperative Matching Funds (06088500). Lack of partner funding for this site resulted in suspension of all USGS monitoring activities. Efforts are ongoing to secure funding for future monitoring. Historical data will continue to be available from USGS.

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 06126500 Musselshell River near Roundup MT


Musselshell County, Montana
Hydrologic Unit Code 10040202
Latitude  46°25'39.79", Longitude 108°34'12.37" NAD83
Drainage area 3,998  square miles
Gage datum 3,193 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 1946-10-01 -> 2020-09-30)

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 56 65 113 167 207 737 448 199 162 91 81 70
2 54 66 113 167 215 685 422 197 155 89 83 67
3 54 66 133 165 225 647 411 193 150 84 84 67
4 60 67 126 164 227 623 416 190 145 82 86 66
5 62 68 122 169 236 615 415 193 142 83 85 65
6 63 69 119 166 249 626 395 192 140 82 83 64
7 61 71 121 161 274 687 371 191 138 81 84 63
8 60 85 134 165 292 842 350 191 137 80 84 63
9 59 85 180 174 306 801 336 184 136 79 84 63
10 57 81 276 184 320 786 321 185 134 78 82 64
11 56 98 246 192 334 788 308 182 132 78 80 66
12 56 105 209 189 356 741 304 185 134 79 78 65
13 57 115 175 187 378 705 293 184 133 80 81 66
14 56 109 177 196 400 739 288 189 132 79 79 67
15 57 97 173 196 394 756 285 190 128 80 77 64
16 60 96 193 190 403 746 278 191 122 81 77 64
17 67 94 217 180 437 741 272 185 119 82 78 63
18 67 91 222 177 487 786 265 182 116 82 73 63
19 65 92 226 172 505 807 268 180 115 80 72 67
20 64 94 255 170 523 792 255 193 115 79 72 65
21 64 96 248 171 542 773 247 186 116 80 70 65
22 64 93 285 175 574 805 252 184 117 78 70 63
23 65 93 286 182 592 793 250 181 117 79 70 61
24 65 92 255 182 603 708 241 188 113 78 72 62
25 65 95 251 182 653 635 230 188 107 78 72 61
26 65 113 258 180 787 598 226 187 100 81 71 61
27 65 120 251 189 783 582 231 180 98 81 68 60
28 66 115 230 201 802 563 227 169 96 80 69 59
29 66 121 205 200 753 531 218 162 94 79 69 58
30 68   187 198 718 500 217 179 93 78 70 57
31 67   172   697   212 167   80   58