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USGS Daily Statistics for California

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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 1,597 feet above NGVD29
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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 -> 2023-09-30)

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
1 729 713 824 731 3,130 2,560 1,350 536 777 473 358 420
2 652 815 858 705 3,380 2,470 1,310 522 824 473 361 488
3 616 774 820 696 3,600 2,400 1,280 520 824 475 354 417
4 700 746 781 688 3,780 2,350 1,250 510 791 477 357 431
5 638 773 805 718 3,970 2,260 1,220 502 829 479 350 452
6 606 869 921 768 4,260 2,230 1,190 503 812 476 352 460
7 615 947 838 833 4,220 2,220 1,160 504 767 474 372 453
8 730 807 773 777 4,120 2,110 1,130 499 736 473 369 458
9 768 918 762 761 4,000 1,980 1,110 497 786 476 372 434
10 795 808 835 729 4,010 1,920 1,030 499 808 480 362 474
11 782 724 815 769 3,840 1,890 966 496 748 478 353 514
12 811 678 793 945 3,680 1,840 905 495 713 477 354 468
13 1,010 684 786 924 3,710 1,800 854 507 698 480 359 493
14 954 735 775 881 3,810 1,790 810 520 676 480 355 607
15 891 703 775 976 3,710 1,760 777 522 674 459 355 643
16 904 781 793 1,030 3,630 1,710 751 524 669 402 358 646
17 1,060 953 728 1,240 3,470 1,690 733 600 758 346 353 500
18 1,050 849 687 1,370 3,500 1,630 703 603 776 332 352 482
19 1,090 723 681 1,230 3,690 1,600 678 562 729 341 357 561
20 1,090 760 750 1,300 3,530 1,560 655 533 684 335 373 576
21 1,020 787 771 1,260 3,310 1,540 636 600 676 328 374 591
22 978 776 779 1,270 3,230 1,510 613 628 647 334 374 638
23 937 755 720 1,390 3,200 1,520 588 664 557 336 370 577
24 861 758 781 1,520 3,190 1,490 583 746 505 382 366 563
25 820 793 767 1,660 3,140 1,440 578 800 491 354 355 521
26 797 920 750 1,800 3,020 1,460 577 925 486 349 357 542
27 739 1,120 797 2,070 2,890 1,450 580 944 480 347 369 732
28 725 900 828 2,360 2,860 1,410 579 858 474 350 363 987
29 772 990 760 2,880 2,790 1,390 570 918 473 356 390 748
30 751   801 3,070 2,720 1,360 545 875 478 355 417 888
31 703   768   2,640   531 816   352   914