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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 12331800 Clark Fork near Drummond MT


Granite County, Montana
Hydrologic Unit Code 17010202
Latitude  46°42'42.89", Longitude 113°19'50.81" NAD83
Drainage area 2,516  square miles
Gage datum 3,810 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 1992-10-01 -> 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
1 526 615 560 747 1,080 1,760 1,190 427 368 523 621 581
2 525 605 559 747 1,050 1,800 1,180 417 374 533 623 582
3 506 547 557 744 1,020 1,790 1,130 405 369 539 628 585
4 502 532 561 736 1,040 1,820 1,120 388 366 553 631 567
5 491 539 572 762 1,050 1,850 1,090 385 371 564 631 549
6 489 533 586 797 1,060 1,840 1,020 384 377 576 628 526
7 494 558 608 814 1,090 1,880 972 385 386 581 624 511
8 516 669 625 861 1,120 1,900 928 389 397 586 627 506
9 531 834 646 877 1,120 1,910 887 373 420 593 634 504
10 521 722 704 882 1,130 1,890 851 366 427 598 630 506
11 511 600 744 871 1,170 1,910 836 356 425 606 618 523
12 488 565 735 885 1,190 1,830 815 353 421 616 613 534
13 481 567 787 882 1,200 1,770 791 353 426 621 616 546
14 501 573 791 881 1,200 1,820 778 353 426 631 616 533
15 527 577 737 884 1,210 1,740 750 349 431 638 608 530
16 513 592 746 861 1,250 1,710 721 349 441 641 607 521
17 523 582 747 850 1,330 1,770 684 354 448 649 608 516
18 536 575 711 858 1,440 1,850 662 352 452 648 609 496
19 540 567 719 876 1,480 1,840 634 346 460 648 609 489
20 540 571 739 900 1,500 1,830 618 338 473 656 605 487
21 528 561 729 938 1,530 1,750 595 338 480 642 601 498
22 511 568 739 975 1,540 1,660 571 351 481 638 593 491
23 505 582 785 1,010 1,550 1,610 553 354 485 635 580 477
24 503 546 778 1,040 1,570 1,530 533 360 492 633 570 476
25 518 530 757 1,070 1,640 1,450 512 358 492 629 573 474
26 523 506 751 1,070 1,690 1,390 492 354 493 627 572 470
27 549 509 760 1,070 1,690 1,360 487 358 497 624 576 468
28 526 522 736 1,060 1,690 1,290 484 359 498 627 582 476
29 504 590 723 1,060 1,710 1,250 466 363 501 627 584 487
30 513   713 1,070 1,730 1,230 449 364 508 620 584 495
31 515   727   1,740   439 361   617   493