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USGS Surface-Water Daily Statistics for the Nation

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 -> 2024-09-30)

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 70 179 533 640 761 671 486 329 334 123 79
2 64 72 192 529 616 749 674 478 328 292 123 79
3 64 76 209 506 609 740 664 478 328 241 126 79
4 64 79 230 476 615 788 657 465 326 223 118 82
5 66 83 225 474 620 806 675 465 321 226 119 78
6 64 82 235 487 625 795 673 455 319 222 114 78
7 66 81 237 496 627 826 652 448 319 207 112 78
8 67 80 235 517 639 815 629 444 315 189 112 79
9 79 78 254 577 650 795 615 442 311 184 102 78
10 78 78 299 667 679 777 596 429 312 181 103 76
11 73 78 336 698 711 761 617 408 310 179 100 75
12 73 78 366 762 735 743 598 403 312 182 97 73
13 74 80 381 785 745 717 578 401 309 182 91 73
14 74 81 418 811 735 719 559 397 304 177 89 71
15 73 83 420 808 717 702 546 397 295 174 81 71
16 73 84 416 781 703 700 528 400 289 176 80 71
17 72 84 425 754 696 702 515 398 290 177 80 71
18 71 85 464 754 692 713 514 394 282 175 80 71
19 70 87 491 743 673 665 534 384 274 173 82 70
20 69 85 525 743 663 644 524 377 264 164 82 69
21 70 83 556 723 674 631 508 374 268 160 80 68
22 70 83 558 683 699 636 507 367 267 161 86 68
23 67 81 531 660 732 658 504 354 259 155 81 66
24 68 82 480 660 750 639 497 369 255 150 83 66
25 69 86 496 654 733 614 488 400 285 145 84 65
26 68 89 536 649 722 624 479 387 338 141 83 66
27 68 118 530 643 731 648 482 362 348 139 78 66
28 67 142 533 621 741 690 495 349 379 131 79 65
29 68 80 536 620 734 717 503 340 466 125 79 65
30 68   534 644 735 699 506 332 416 123 78 65
31 69   542   729   496 329   121   64