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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 06052500 Gallatin River at Logan MT


Gallatin County, Montana
Hydrologic Unit Code 10020008
Latitude  45°53'07.28", Longitude 111°26'17.83" NAD83
Drainage area 1,789  square miles
Gage datum 4,086.42 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 1893-10-01 -> 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
1 685 671 707 863 1,360 3,090 2,040 453 533 692 806 782
2 684 674 710 892 1,380 3,150 1,920 448 538 697 807 786
3 677 666 711 877 1,420 3,160 1,830 446 541 703 810 784
4 674 669 708 869 1,480 3,240 1,770 445 537 708 818 774
5 677 689 700 878 1,540 3,310 1,690 448 540 711 819 760
6 679 687 713 896 1,580 3,410 1,580 447 546 714 819 754
7 682 675 725 910 1,650 3,440 1,470 443 552 718 817 747
8 685 668 728 905 1,690 3,420 1,390 441 558 722 821 744
9 685 674 733 925 1,710 3,400 1,300 444 567 722 824 740
10 682 668 744 958 1,740 3,330 1,210 443 572 722 820 739
11 674 675 752 958 1,760 3,310 1,140 443 581 728 820 746
12 669 674 749 971 1,790 3,230 1,070 443 602 739 821 736
13 671 678 754 966 1,850 3,220 1,000 449 604 744 825 735
14 675 680 747 985 1,910 3,220 950 451 602 744 823 729
15 674 679 746 1,010 2,010 3,140 894 454 605 753 817 729
16 671 676 752 1,010 2,110 3,110 826 457 611 762 814 729
17 675 688 764 1,020 2,200 3,160 765 461 616 764 815 724
18 670 689 787 1,030 2,290 3,110 716 459 622 764 816 716
19 670 690 799 1,050 2,350 3,030 689 461 635 761 818 711
20 670 697 804 1,070 2,410 2,980 656 470 647 761 815 712
21 672 697 807 1,100 2,520 2,900 617 480 660 765 814 717
22 672 694 820 1,120 2,600 2,800 586 487 666 773 806 721
23 673 687 825 1,170 2,630 2,720 565 494 665 778 800 710
24 673 690 838 1,220 2,650 2,650 540 500 666 781 804 702
25 670 699 845 1,230 2,690 2,580 522 505 662 781 806 697
26 670 698 851 1,240 2,740 2,530 507 507 662 785 799 694
27 665 700 855 1,240 2,810 2,460 500 511 671 788 794 693
28 666 712 846 1,260 2,890 2,380 484 512 683 787 788 695
29 663 751 862 1,280 3,000 2,250 471 521 680 791 782 694
30 662   862 1,320 3,090 2,140 465 521 687 792 781 693
31 667   852   3,100   457 525   802   688