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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 06324500 Powder River at Moorhead MT


Powder River County, Montana
Hydrologic Unit Code 10090207
Latitude  45°03'25.91", Longitude 105°52'42.16" NAD83
Drainage area 8,029  square miles
Gage datum 3,350.60 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 1929-10-01 -> 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
1 152 174 474 489 634 1,560 782 218 131 223 252 192
2 155 178 477 589 659 1,510 743 207 112 219 249 187
3 158 182 468 485 676 1,490 705 234 123 198 246 183
4 157 190 451 444 691 1,500 653 185 127 199 248 187
5 156 193 446 420 704 1,520 639 186 121 220 247 185
6 159 198 451 413 814 1,550 621 186 108 226 246 178
7 161 205 486 410 840 1,600 567 143 103 219 245 168
8 161 203 534 402 863 1,590 516 179 127 242 243 163
9 158 200 502 408 846 1,570 525 163 133 230 243 162
10 156 196 531 433 883 1,500 519 141 129 225 237 162
11 154 198 579 454 927 1,540 485 127 127 213 237 160
12 156 210 610 479 918 1,650 549 144 121 207 239 160
13 158 235 657 514 925 1,530 665 230 120 207 236 161
14 159 264 661 498 939 1,490 694 182 119 209 233 159
15 158 299 649 538 950 1,470 554 180 130 231 232 158
16 158 289 702 493 971 1,630 466 169 145 221 231 157
17 158 281 756 475 1,010 1,750 398 149 134 225 228 159
18 158 292 818 468 1,120 1,610 428 133 137 245 223 160
19 158 335 852 470 1,260 1,460 353 132 144 303 224 159
20 158 366 861 489 1,400 1,310 322 140 148 266 215 158
21 159 355 772 480 1,270 1,190 272 195 138 243 207 158
22 159 326 707 481 1,200 1,140 239 154 142 236 203 156
23 158 315 655 496 1,260 1,280 231 138 146 237 203 153
24 158 342 607 523 1,480 1,240 234 133 169 248 220 154
25 158 353 585 536 1,410 1,150 206 123 169 250 224 157
26 157 362 587 553 1,420 1,080 225 134 173 238 210 164
27 159 381 575 590 1,490 1,010 273 117 169 237 211 166
28 162 388 517 597 1,470 956 370 108 167 233 207 154
29 166 789 468 604 1,410 889 298 133 168 233 202 151
30 168   465 623 1,510 820 275 215 174 230 199 151
31 170   458   1,550   237 181   253   152