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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
1 373 280 488 661 887 1,300 1,360 947 833 828 692 551
2 368 293 466 664 890 1,290 1,330 948 831 828 705 499
3 362 320 486 664 890 1,370 1,250 979 829 823 701 514
4 355 340 477 653 911 1,430 1,220 981 838 794 710 473
5 343 350 487 652 930 1,440 1,200 969 847 778 716 434
6 339 349 473 663 948 1,440 1,190 950 853 774 725 419
7 323 348 439 676 956 1,440 1,150 966 859 772 722 402
8 318 332 425 671 953 1,450 1,130 1,030 854 770 721 391
9 310 358 436 701 961 1,490 1,130 1,040 850 760 726 387
10 305 375 434 744 972 1,490 1,200 1,000 851 757 725 387
11 301 397 428 772 976 1,690 1,120 1,030 859 760 733 384
12 294 426 440 801 994 1,690 1,140 1,070 865 749 736 386
13 282 440 460 813 1,030 1,710 1,140 1,070 867 740 738 395
14 274 458 478 808 1,050 1,760 1,150 1,050 843 738 740 380
15 275 466 477 835 1,070 1,780 1,100 975 825 743 739 382
16 275 477 459 842 1,090 1,800 1,070 927 814 735 738 414
17 268 485 480 893 1,110 1,740 1,030 910 797 723 740 423
18 263 482 481 986 1,130 1,620 1,010 913 789 714 738 417
19 263 488 479 988 1,140 1,610 989 918 807 715 741 389
20 280 500 513 931 1,150 1,610 995 916 825 708 729 389
21 290 515 532 860 1,140 1,600 1,010 913 816 699 710 367
22 282 536 619 808 1,100 1,560 1,020 885 820 689 701 369
23 255 545 701 800 1,110 1,520 1,030 866 820 680 703 376
24 247 548 799 798 1,130 1,440 1,010 861 827 689 705 379
25 247 534 828 801 1,130 1,440 1,020 852 845 677 713 368
26 391 525 867 808 1,140 1,450 987 846 842 673 714 358
27 262 511 832 835 1,170 1,430 976 847 840 671 714 356
28 268 494 801 856 1,180 1,410 960 839 841 671 697 360
29 270 338 901 859 1,210 1,380 939 835 841 670 690 366
30 272   840 864 1,240 1,360 921 832 824 662 621 370
31 275   807   1,300   937 831   658   375