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USGS Daily Statistics for the Nation

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 -> 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 64 72 133 188 189 598 421 143 131 92 72 79
2 62 73 156 183 193 606 386 141 126 90 72 77
3 61 76 211 177 201 575 363 138 122 88 76 78
4 60 77 235 175 206 555 364 136 119 83 77 79
5 60 77 230 179 207 546 376 136 116 83 76 79
6 61 78 217 183 215 550 361 140 114 82 76 79
7 62 78 202 178 229 583 337 140 114 81 78 75
8 64 78 187 173 251 656 318 142 112 80 81 76
9 65 78 181 172 267 756 299 141 112 79 82 75
10 65 81 197 178 287 747 281 135 112 78 80 76
11 65 99 239 189 296 719 262 134 111 77 78 79
12 66 124 236 194 314 705 258 134 112 77 77 78
13 66 140 237 192 323 659 253 134 113 78 76 78
14 66 151 247 195 337 637 244 136 112 78 76 78
15 66 122 232 194 341 646 239 139 109 78 76 79
16 68 114 236 188 341 660 231 139 105 79 74 78
17 76 113 296 184 364 650 224 139 102 80 76 77
18 87 112 256 178 382 665 211 134 103 81 77 76
19 88 110 255 178 404 702 199 132 101 80 74 77
20 86 116 318 173 431 713 198 136 100 79 75 85
21 83 121 332 178 468 673 189 144 101 79 72 87
22 80 128 354 184 495 663 188 159 101 78 74 82
23 80 132 411 190 518 687 190 154 102 77 75 80
24 78 127 418 191 526 673 181 148 102 77 77 80
25 78 130 336 188 529 606 170 150 99 77 76 80
26 77 131 339 186 570 563 162 147 95 78 76 79
27 75 132 311 186 700 534 160 144 92 80 75 77
28 74 132 318 189 687 512 160 137 90 80 76 75
29 72 162 287 195 657 493 157 131 89 80 73 72
30 71   265 191 619 459 152 129 88 79 76 68
31 72   266   590   149 142   80   67