Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Montana

Click to hide state-specific text

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 06101500 Marias River near Chester MT


Liberty County, Montana
Hydrologic Unit Code 10030203
Latitude  48°18'21.46", Longitude 111°04'49.90" NAD83
Drainage area 4,944  square miles
Contributing drainage area 4,397  square miles
Gage datum 2,814.03 feet above NGVD29
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1920-10-01 -> 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
1 455 442 525 680 888 1,360 1,390 976 799 779 615 508
2 455 445 528 689 892 1,390 1,340 977 804 769 611 501
3 454 446 530 693 908 1,430 1,310 973 816 762 606 493
4 450 446 532 723 949 1,450 1,300 941 821 768 603 483
5 447 448 532 723 965 1,440 1,290 915 811 761 601 477
6 446 446 530 717 976 1,450 1,260 918 802 751 602 475
7 446 448 531 711 990 1,490 1,240 944 798 746 601 473
8 443 450 535 708 1,000 1,510 1,230 948 802 742 600 472
9 442 457 533 707 1,020 1,520 1,220 924 807 740 597 469
10 441 460 533 709 1,040 1,590 1,210 931 807 744 595 466
11 440 461 537 710 1,070 1,650 1,210 954 808 750 596 467
12 439 463 536 715 1,100 1,660 1,210 953 810 747 596 468
13 438 467 531 713 1,120 1,700 1,190 944 808 740 597 468
14 439 470 535 720 1,120 1,720 1,170 915 802 734 596 468
15 439 474 545 727 1,110 1,700 1,160 874 795 727 592 467
16 439 478 562 746 1,130 1,660 1,150 871 784 716 588 465
17 440 481 576 750 1,140 1,610 1,120 869 787 701 584 462
18 440 482 586 756 1,150 1,580 1,080 872 794 689 579 460
19 440 485 596 761 1,170 1,560 1,070 871 801 681 577 459
20 440 489 598 776 1,200 1,520 1,080 866 799 666 574 459
21 439 493 611 794 1,220 1,510 1,070 854 795 653 572 459
22 439 498 627 800 1,230 1,500 1,060 839 795 648 568 459
23 439 498 638 805 1,240 1,490 1,050 834 800 649 567 459
24 439 496 652 805 1,240 1,480 1,050 827 802 643 565 459
25 440 494 662 807 1,250 1,500 1,020 829 796 631 563 459
26 440 493 668 823 1,280 1,470 1,020 829 795 626 557 459
27 440 489 679 837 1,310 1,440 1,010 819 795 627 554 458
28 440 491 686 842 1,340 1,420 987 811 795 620 545 457
29 440 440 687 851 1,350 1,400 982 806 797 614 527 457
30 440   686 885 1,360 1,400 982 807 805 612 515 457
31 438   690   1,370   983 802   615   456