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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 13 - 30 years of record in, ft3/s   (Calculation Period 1959-10-01 -> 2018-09-30)

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
1 373 280 488 613 833 1,220 1,450 913 882 880 700 551
2 368 293 466 619 823 1,240 1,400 915 879 879 727 499
3 362 320 486 634 816 1,330 1,300 950 876 873 709 514
4 355 340 477 633 842 1,400 1,250 955 887 842 720 473
5 343 350 487 643 867 1,430 1,240 942 899 824 726 434
6 339 349 473 660 888 1,450 1,220 920 906 821 725 419
7 323 348 439 676 894 1,470 1,170 943 911 819 722 402
8 318 332 425 665 888 1,490 1,140 1,030 906 816 721 391
9 310 358 436 677 898 1,520 1,130 1,060 901 803 726 387
10 305 375 434 679 913 1,520 1,200 1,030 903 801 725 387
11 301 397 428 695 937 1,750 1,080 1,070 914 804 733 384
12 294 426 440 702 962 1,750 1,060 1,120 921 791 736 386
13 282 440 460 712 1,000 1,790 1,060 1,120 924 780 738 395
14 274 458 478 718 1,030 1,850 1,070 1,110 895 778 740 380
15 275 466 477 745 1,070 1,880 1,020 1,020 874 784 739 382
16 275 477 459 731 1,090 1,910 999 969 860 774 738 414
17 268 485 480 728 1,110 1,830 970 952 840 760 740 423
18 263 482 481 730 1,130 1,700 946 954 834 750 738 417
19 263 488 479 735 1,140 1,690 927 962 856 752 741 389
20 280 500 513 747 1,150 1,700 925 961 878 744 729 389
21 290 515 532 758 1,130 1,680 939 961 867 733 710 367
22 282 536 619 766 1,080 1,660 957 934 872 721 701 369
23 255 545 701 775 1,090 1,630 968 916 871 707 703 376
24 247 548 799 774 1,090 1,550 945 911 880 719 705 379
25 247 534 828 767 1,090 1,550 969 901 901 707 713 368
26 391 525 867 770 1,100 1,570 945 894 897 702 714 358
27 262 511 832 794 1,120 1,550 934 895 896 701 714 356
28 268 494 801 817 1,120 1,530 918 886 897 702 697 360
29 270 338 779 814 1,140 1,490 893 883 894 698 690 366
30 272   749 814 1,140 1,460 877 879 875 690 621 370
31 275   750   1,180   901 878   686   375