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USGS 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 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 -> 2025-09-30)

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
1 523 598 566 739 1,050 1,700 1,130 408 359 514 631 581
2 519 591 569 745 1,040 1,730 1,120 399 363 525 631 583
3 500 542 568 742 1,030 1,720 1,070 388 359 532 637 583
4 501 533 571 740 1,040 1,760 1,060 374 359 544 641 564
5 495 539 575 774 1,060 1,790 1,040 371 363 555 641 550
6 490 534 588 801 1,080 1,800 978 374 370 566 639 532
7 494 553 610 812 1,110 1,820 931 373 377 571 635 523
8 515 646 626 851 1,150 1,830 892 376 388 575 637 517
9 528 790 637 871 1,140 1,860 856 363 407 581 639 514
10 519 694 687 885 1,140 1,840 822 356 414 586 632 515
11 507 586 724 899 1,160 1,860 807 346 413 594 626 527
12 482 551 719 900 1,180 1,810 785 343 410 603 619 540
13 478 550 764 875 1,170 1,750 761 341 414 608 619 550
14 497 558 770 870 1,170 1,780 746 341 414 618 622 536
15 517 562 728 872 1,180 1,690 720 338 419 624 615 533
16 507 577 739 851 1,230 1,650 692 338 428 627 614 523
17 518 569 744 843 1,300 1,690 658 341 434 633 616 521
18 532 566 714 848 1,400 1,760 636 340 439 632 611 498
19 536 564 732 860 1,430 1,760 610 336 447 633 608 497
20 536 569 752 878 1,460 1,750 593 331 460 639 607 498
21 526 557 736 911 1,490 1,680 571 334 468 648 603 507
22 512 551 738 942 1,490 1,590 548 348 472 643 593 494
23 508 555 773 974 1,510 1,520 531 351 478 640 584 478
24 501 525 765 1,000 1,530 1,450 511 355 483 639 578 473
25 513 523 747 1,030 1,590 1,370 492 353 482 632 577 472
26 520 525 740 1,030 1,630 1,320 472 351 482 631 578 471
27 539 515 746 1,030 1,650 1,290 465 355 486 630 582 468
28 517 522 728 1,020 1,650 1,230 462 355 487 633 583 480
29 493 609 732 1,020 1,670 1,190 446 357 491 633 581 491
30 500   713 1,040 1,680 1,170 430 357 498 628 577 493
31 505   720   1,680   421 354   627   493