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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 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 3,188.54 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 -> 2024-09-30)

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 60 68 116 165 199 716 456 198 159 91 83 72
2 58 69 116 165 206 678 427 195 152 89 85 69
3 59 69 135 163 215 649 413 191 147 84 86 70
4 63 69 128 162 219 634 415 188 142 83 88 69
5 66 71 124 166 229 631 415 191 139 82 87 69
6 67 72 122 163 243 642 395 192 138 81 85 68
7 65 74 125 158 270 702 374 191 136 79 85 68
8 64 86 136 162 289 840 353 191 136 79 85 67
9 63 86 179 170 302 810 338 184 135 78 85 67
10 61 83 269 179 313 788 322 183 132 76 83 68
11 60 99 241 190 326 784 310 180 130 77 81 69
12 60 105 206 190 345 736 306 182 133 79 80 68
13 60 114 174 194 365 698 294 181 132 80 82 69
14 59 109 176 203 385 726 286 186 131 79 81 70
15 59 97 173 195 381 738 282 186 126 80 79 67
16 62 97 191 186 394 726 275 187 121 82 79 66
17 69 95 214 176 431 719 268 182 118 83 79 66
18 69 93 221 173 479 760 260 179 115 82 79 66
19 67 93 224 168 495 781 263 177 113 80 77 70
20 67 95 251 166 510 768 250 190 113 80 78 68
21 67 97 245 167 530 750 242 183 114 80 76 67
22 68 95 281 171 566 778 246 182 115 79 75 66
23 68 95 281 177 585 765 244 179 116 79 75 65
24 68 95 251 176 596 689 235 186 113 79 77 66
25 69 98 247 176 643 634 224 185 108 79 77 65
26 68 115 254 174 769 604 222 184 102 82 75 65
27 68 122 247 183 763 582 227 177 99 82 71 64
28 69 117 227 194 780 566 223 166 97 80 72 63
29 69 134 202 193 734 537 216 159 94 80 72 62
30 71   184 191 699 504 215 176 93 80 72 62
31 70   170   677   211 164   82   62