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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 11525854 TRINITY R A DOUGLAS CITY CA


Trinity County, California
Hydrologic Unit Code 18010211
Latitude  40°38'43", Longitude 122°57'24" NAD83
Drainage area 931  square miles
Gage datum 1,593.30 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 2002-10-01 -> 2025-09-30)

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
1 786 823 966 845 3,230 2,530 1,310 537 751 472 352 413
2 717 949 1,000 815 3,430 2,430 1,260 522 795 472 356 471
3 710 984 961 811 3,600 2,350 1,230 519 793 473 349 412
4 768 984 926 836 3,750 2,290 1,200 507 762 475 352 423
5 751 983 959 872 3,880 2,210 1,170 499 797 477 347 442
6 686 995 1,070 907 4,120 2,180 1,140 500 782 475 350 449
7 716 1,060 993 957 4,060 2,170 1,120 501 741 473 367 444
8 887 969 930 931 3,960 2,070 1,080 497 712 472 364 447
9 907 1,050 918 981 3,850 1,940 1,050 494 757 474 366 426
10 892 944 993 929 3,850 1,890 988 496 776 479 356 462
11 882 863 970 1,020 3,690 1,850 926 493 722 477 349 497
12 916 819 968 1,170 3,540 1,800 871 492 691 475 350 458
13 1,110 825 982 1,140 3,570 1,760 825 503 677 478 355 489
14 1,110 877 1,030 1,080 3,650 1,750 784 515 657 479 352 648
15 990 856 953 1,190 3,560 1,710 754 517 655 460 352 633
16 960 927 933 1,550 3,490 1,670 737 518 651 406 355 628
17 1,090 1,080 869 1,980 3,350 1,640 725 589 731 344 351 498
18 1,060 1,010 817 2,090 3,360 1,590 700 594 748 328 352 483
19 1,090 951 826 1,930 3,520 1,560 679 565 706 335 359 562
20 1,100 1,040 917 1,880 3,370 1,520 659 551 664 330 374 582
21 1,060 1,020 925 1,890 3,180 1,500 640 667 656 324 405 586
22 1,040 972 904 2,070 3,100 1,460 619 666 630 330 439 621
23 973 940 831 2,260 3,060 1,470 595 674 548 331 388 569
24 902 927 871 2,320 3,040 1,440 589 735 501 371 372 675
25 858 948 850 2,320 2,990 1,400 584 783 488 347 370 790
26 830 1,050 836 2,540 2,880 1,410 582 886 484 343 368 767
27 782 1,230 883 2,700 2,830 1,400 583 902 479 341 373 919
28 774 1,030 913 2,730 2,800 1,370 581 824 473 344 365 1,110
29 807 988 850 3,100 2,730 1,350 571 878 472 349 387 911
30 783   920 3,230 2,680 1,320 548 840 477 348 409 1,040
31 759   884   2,620   533 787   346   994