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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 12340000 Blackfoot River near Bonner MT


Missoula County, Montana
Hydrologic Unit Code 17010203
Latitude  46°53'57.88", Longitude 113°45'22.75" NAD83
Drainage area 2,287  square miles
Gage datum 3,344.76 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 1897-10-01 -> 2020-09-30)

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
1 538 573 645 1,200 3,280 5,940 3,040 1,010 694 630 655 649
2 529 581 652 1,250 3,340 5,930 2,920 999 692 642 658 659
3 524 580 640 1,280 3,440 5,990 2,810 976 687 635 656 658
4 524 570 631 1,310 3,570 6,070 2,720 954 678 634 660 665
5 529 575 631 1,350 3,750 6,050 2,630 935 670 627 663 658
6 541 581 639 1,440 3,880 5,990 2,510 919 668 628 666 634
7 563 578 641 1,530 4,060 5,870 2,400 903 664 629 666 614
8 567 590 654 1,590 4,220 5,720 2,300 886 664 629 685 610
9 567 617 663 1,640 4,330 5,610 2,200 868 663 633 683 603
10 562 604 676 1,710 4,450 5,490 2,120 855 664 631 675 604
11 551 607 701 1,820 4,580 5,300 2,030 841 661 630 666 607
12 544 607 724 1,880 4,690 5,160 1,950 831 658 637 657 608
13 547 597 739 1,970 4,840 5,070 1,880 819 657 637 656 610
14 554 594 744 2,030 4,920 5,040 1,820 810 657 640 659 614
15 561 590 752 2,080 5,020 4,910 1,740 795 656 639 659 606
16 581 598 788 2,130 5,170 4,830 1,670 787 655 644 653 596
17 582 605 831 2,170 5,360 4,810 1,600 780 654 645 652 587
18 580 604 846 2,210 5,520 4,710 1,540 771 654 642 649 579
19 571 605 865 2,290 5,620 4,600 1,490 759 654 641 646 571
20 563 620 872 2,420 5,680 4,480 1,450 752 652 641 640 569
21 562 632 883 2,580 5,770 4,350 1,390 747 652 640 636 566
22 562 630 918 2,690 5,820 4,200 1,340 742 648 642 638 566
23 560 623 954 2,820 5,880 4,030 1,290 743 645 641 632 570
24 556 621 977 2,910 5,960 3,900 1,240 738 643 645 646 578
25 559 616 984 3,010 6,040 3,740 1,200 731 639 645 663 574
26 550 608 994 3,080 6,100 3,610 1,170 725 638 654 665 573
27 551 615 1,020 3,130 6,120 3,470 1,130 717 638 654 656 574
28 545 627 1,050 3,160 6,090 3,300 1,110 712 640 657 647 563
29 540 630 1,080 3,190 6,040 3,190 1,080 703 636 653 641 548
30 542   1,110 3,240 6,040 3,110 1,060 697 633 651 645 548
31 565   1,150   6,000   1,040 694   654   549