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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 70 181 567 648 773 687 482 337 350 123 79
2 64 72 195 563 621 765 689 474 337 304 123 79
3 64 76 212 533 613 751 678 476 337 250 126 79
4 64 79 235 501 619 770 668 463 334 231 118 82
5 66 83 233 499 625 793 684 463 328 234 119 78
6 64 82 241 511 632 796 682 453 324 231 114 78
7 66 81 242 519 633 833 664 448 326 216 112 78
8 67 80 242 541 645 822 641 446 323 197 112 79
9 79 78 262 597 655 802 626 444 320 193 102 78
10 78 78 312 652 683 788 606 432 322 189 103 76
11 73 78 351 662 711 774 625 411 322 187 100 75
12 73 78 381 685 736 757 605 406 324 189 97 73
13 74 80 393 709 748 731 584 404 322 189 91 73
14 74 81 413 734 741 734 563 399 318 184 89 71
15 73 83 409 737 723 717 548 400 308 181 81 71
16 73 84 411 734 707 714 532 404 301 183 80 71
17 72 84 427 721 701 716 521 402 303 184 80 71
18 71 85 468 717 700 729 519 399 293 182 80 71
19 70 87 495 699 682 680 539 390 284 179 82 70
20 69 85 529 698 673 660 525 381 274 170 82 69
21 70 83 561 686 682 648 507 377 278 166 80 68
22 70 83 570 667 707 653 505 370 278 167 86 68
23 67 81 552 661 746 678 503 357 270 161 81 66
24 68 82 505 671 768 658 497 373 265 154 83 66
25 69 86 522 664 751 630 488 406 297 149 84 65
26 68 89 568 660 737 641 478 392 353 145 83 66
27 68 118 562 654 743 667 481 368 364 143 78 66
28 67 142 566 630 749 711 495 356 397 135 79 65
29 68 80 569 627 742 738 503 348 490 129 79 65
30 68   568 651 744 718 505 340 438 126 78 65
31 69   577   739   495 337   125   64