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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 06102050 Marias River near Loma MT


Chouteau County, Montana
Hydrologic Unit Code 10030203
Latitude  47°56'45.25", Longitude 110°34'51.02" NAD83
Drainage area 7,027  square miles
Contributing drainage area 6,480  square miles
Gage datum 2,570 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 1959-10-01 -> 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
1 373 280 488 654 874 1,280 1,330 931 833 828 692 551
2 368 293 466 657 877 1,260 1,300 932 831 828 705 499
3 362 320 486 657 877 1,340 1,220 962 829 823 701 514
4 355 340 477 647 897 1,400 1,190 964 838 794 710 473
5 343 350 487 647 915 1,410 1,180 953 847 778 716 434
6 339 349 473 657 933 1,410 1,170 934 853 774 725 419
7 323 348 439 671 942 1,410 1,130 950 859 772 722 402
8 318 332 425 665 944 1,420 1,110 1,010 854 770 721 391
9 310 358 436 693 948 1,460 1,110 1,030 850 760 726 387
10 305 375 434 735 957 1,460 1,170 983 851 757 725 387
11 301 397 428 762 961 1,650 1,100 1,010 859 760 733 384
12 294 426 440 790 978 1,650 1,110 1,050 865 749 736 386
13 282 440 460 801 1,010 1,670 1,120 1,050 867 740 738 395
14 274 458 478 797 1,030 1,720 1,120 1,030 843 738 740 380
15 275 466 477 823 1,060 1,750 1,080 959 825 743 739 382
16 275 477 459 829 1,070 1,760 1,040 912 814 735 738 414
17 268 485 480 879 1,090 1,700 1,010 896 797 723 740 423
18 263 482 481 970 1,110 1,590 987 898 789 714 738 417
19 263 488 479 971 1,120 1,570 971 904 807 715 741 389
20 280 500 513 917 1,130 1,570 977 916 825 708 729 389
21 290 515 532 847 1,120 1,570 990 913 816 699 710 367
22 282 536 619 797 1,080 1,530 1,000 885 820 689 701 369
23 255 545 701 789 1,090 1,490 1,010 866 820 680 703 376
24 247 548 799 787 1,110 1,410 987 861 827 689 705 379
25 247 534 828 791 1,110 1,410 998 852 845 677 713 368
26 391 525 867 797 1,120 1,420 969 846 842 673 714 358
27 262 511 832 823 1,150 1,400 958 847 840 671 714 356
28 268 494 801 844 1,160 1,380 944 839 841 671 697 360
29 270 338 901 846 1,180 1,360 923 835 841 670 690 366
30 272   840 851 1,220 1,330 906 832 824 662 621 370
31 275   807   1,270   921 831   658   375