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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 06155500 Milk River at Malta MT


Phillips County, Montana
Hydrologic Unit Code 10050004
Latitude  48°21'42.67", Longitude 107°51'46.34" NAD83
Drainage area 11,654  square miles
Contributing drainage area 11,186  square miles
Gage datum 2,221.4 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 1901-10-01 -> 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 82 145 515 1,750 946 623 644 220 168 165 164 95
2 83 144 546 1,710 889 713 614 207 144 162 164 93
3 85 142 566 1,770 796 711 581 185 131 152 176 92
4 123 142 520 2,000 701 731 553 187 123 213 175 90
5 212 141 526 2,330 676 785 543 179 121 361 169 90
6 229 141 528 2,600 610 828 543 166 189 482 162 90
7 234 142 505 2,250 605 810 525 159 230 507 158 92
8 217 146 479 2,160 565 798 551 156 297 380 155 92
9 198 168 461 2,350 678 749 545 144 381 269 151 92
10 152 205 462 2,370 696 731 477 140 402 227 152 93
11 130 248 468 2,210 719 763 408 144 347 203 146 91
12 109 283 498 2,120 701 780 411 144 283 210 135 90
13 102 281 588 2,030 737 793 422 153 231 207 135 91
14 95 238 627 1,890 813 763 355 151 202 195 135 92
15 88 227 625 1,830 780 661 378 160 187 184 134 93
16 86 206 686 1,790 701 600 331 179 184 181 133 93
17 85 187 736 1,850 616 612 314 185 176 174 131 93
18 87 178 771 1,800 556 646 342 144 166 170 132 93
19 85 177 852 1,720 549 598 306 147 152 166 131 92
20 83 177 884 1,630 567 556 273 150 144 163 128 92
21 81 171 851 1,490 566 599 255 163 138 162 128 92
22 80 164 886 1,230 584 606 249 141 131 158 130 92
23 80 164 1,030 1,150 632 665 221 133 127 176 131 92
24 79 164 1,150 1,170 637 737 214 138 123 166 129 91
25 78 164 1,330 1,250 668 721 187 266 122 157 129 90
26 79 167 1,310 1,320 703 737 165 361 123 162 128 90
27 76 165 1,200 1,310 738 647 161 367 133 164 129 90
28 76 163 1,110 1,240 700 601 163 354 134 161 120 90
29 75 249 1,080 1,100 719 573 158 286 134 161 111 88
30 73   1,030 981 695 659 179 217 141 159 109 87
31 72   1,020   640   226 194   164   91