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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 06154100 Milk River near Harlem MT


Blaine County, Montana
Hydrologic Unit Code 10050004
Latitude  48°29'22.71", Longitude 108°45'32.22" NAD83
Drainage area 9,652  square miles
Contributing drainage area 8,961  square miles
Gage datum 2,319.4 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 1959-10-01 -> 2021-09-30)

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 65 70 184 576 651 784 695 481 336 355 123 79
2 64 72 198 572 622 774 693 473 336 308 123 79
3 64 76 215 541 611 759 680 474 336 253 126 79
4 64 79 239 509 617 777 669 460 333 234 118 82
5 66 83 237 506 624 800 683 461 328 237 119 78
6 64 82 245 518 629 803 680 453 323 234 114 78
7 66 81 246 526 629 838 662 448 325 219 112 78
8 67 80 246 548 642 824 638 447 322 200 112 79
9 79 78 266 606 653 804 622 445 319 195 102 78
10 78 78 317 662 681 790 603 433 321 192 103 76
11 73 78 358 673 711 777 626 411 322 190 100 75
12 73 78 388 696 736 763 605 407 324 191 97 73
13 74 80 400 720 748 738 584 404 322 192 91 73
14 74 81 420 745 739 742 563 400 317 187 89 71
15 73 83 416 747 720 725 549 401 307 183 81 71
16 73 84 418 744 704 722 532 404 301 185 80 71
17 72 84 434 729 698 725 521 402 304 186 80 71
18 71 85 477 725 697 738 519 398 295 184 80 71
19 70 87 504 707 680 686 539 389 287 181 82 70
20 69 85 538 706 671 665 527 380 277 172 82 69
21 70 83 571 695 681 653 509 375 281 167 80 68
22 70 83 581 675 706 657 508 369 281 169 86 68
23 67 81 562 669 746 681 505 357 272 163 81 66
24 68 82 514 678 769 661 496 374 269 156 83 66
25 69 86 532 671 752 635 487 407 302 150 84 65
26 68 89 578 666 741 647 477 393 359 146 83 66
27 68 118 572 660 749 674 481 369 371 144 78 66
28 67 142 576 635 758 720 496 356 405 137 79 65
29 68 80 579 632 752 747 504 348 500 130 79 65
30 68   578 656 755 727 506 340 445 127 78 65
31 69   587   749   494 336   126   64