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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 06155030 Milk River near Dodson MT


Phillips County, Montana
Hydrologic Unit Code 10050004
Latitude  48°24'10.00", Longitude 108°17'38.74" NAD83
Drainage area 11,134  square miles
Contributing drainage area 10,442  square miles
Gage datum 2,250 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 1981-10-01 -> 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 71 83 295 306 354 567 399 59 82 382 101 102
2 71 79 276 291 330 609 352 49 82 463 109 99
3 69 81 263 309 306 617 303 45 83 458 116 96
4 70 81 252 272 270 640 257 42 85 434 119 94
5 68 79 248 244 232 714 233 45 81 468 119 90
6 68 78 253 226 249 699 221 47 78 460 120 86
7 68 77 263 218 277 651 226 47 78 363 128 84
8 66 75 218 209 282 666 219 50 80 257 139 80
9 78 72 194 216 273 659 211 54 82 197 136 76
10 142 73 181 215 291 605 195 71 87 163 116 75
11 182 76 261 216 315 575 233 81 93 150 96 71
12 111 74 307 222 393 563 224 74 91 146 90 69
13 112 80 303 266 413 551 212 70 91 142 87 69
14 111 95 287 305 402 510 185 70 90 141 83 69
15 103 104 311 323 390 483 151 69 94 144 86 66
16 95 107 330 366 376 454 151 66 93 137 90 66
17 91 105 349 428 341 434 128 62 88 133 87 68
18 91 106 342 448 335 426 111 60 86 132 84 67
19 94 105 308 507 329 438 73 55 85 127 82 66
20 90 105 282 562 322 454 71 51 81 126 80 62
21 88 106 295 560 318 469 76 44 78 123 80 60
22 84 108 464 533 390 473 67 43 80 120 78 60
23 83 110 515 533 565 472 65 45 77 118 75 60
24 83 111 489 531 566 494 62 84 74 121 116 62
25 82 111 462 533 533 528 55 223 205 133 113 61
26 82 213 386 531 513 487 53 260 489 132 112 64
27 82 761 340 512 488 460 52 224 439 130 109 64
28 89 837 321 482 485 470 54 163 371 129 108 65
29 90 35 322 446 484 451 67 117 342 130 109 63
30 87   352 385 467 444 71 95 331 135 105 64
31 87   338   488   69 84   142   62