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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 11526400 TRINITY R AB NF TRINITY R NR HELENA CA


Trinity County, California
Hydrologic Unit Code 18010211
Latitude  40°46'00", Longitude 123°06'48" NAD27
Drainage area 1,137  square miles
Gage datum 1,380 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 2004-10-01 -> 2019-09-30)

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 1,410 1,210 1,380 1,510 3,680 3,240 1,600 598 767 508 499 665
2 1,220 1,450 1,430 1,450 4,160 3,170 1,550 578 719 503 503 943
3 1,090 1,480 1,410 1,400 4,450 3,110 1,510 569 708 505 463 692
4 1,270 1,410 1,360 1,350 4,780 3,110 1,470 565 704 523 476 746
5 1,160 1,440 1,360 1,370 5,200 2,950 1,430 559 693 522 443 829
6 1,050 1,750 1,740 1,460 5,460 2,820 1,400 555 688 516 490 737
7 1,010 2,130 1,550 1,720 5,470 2,740 1,370 562 684 507 524 648
8 1,200 1,700 1,380 1,650 5,310 2,660 1,330 554 677 504 488 644
9 1,380 2,110 1,380 1,540 5,260 2,530 1,290 549 742 505 462 659
10 1,370 1,880 1,560 1,410 5,250 2,450 1,240 546 811 528 449 811
11 1,450 1,570 1,470 1,410 5,110 2,380 1,160 541 760 525 436 960
12 1,260 1,370 1,430 1,680 4,850 2,310 1,110 539 716 509 446 811
13 1,460 1,360 1,440 1,750 4,740 2,270 1,050 540 687 512 462 827
14 1,420 1,480 1,520 1,580 4,920 2,260 986 570 659 551 497 928
15 1,320 1,400 1,400 1,600 4,790 2,190 943 566 659 544 469 1,160
16 1,390 1,370 1,560 1,650 4,530 2,120 911 570 663 509 486 887
17 1,960 1,260 1,470 1,740 4,320 2,110 891 641 794 450 453 765
18 2,030 1,240 1,370 1,490 4,330 2,070 866 681 853 414 445 737
19 1,960 1,160 1,350 1,450 4,340 2,050 828 631 806 478 447 976
20 1,940 1,160 1,440 1,420 4,230 1,970 795 595 757 418 552 1,010
21 1,860 1,240 1,530 1,390 4,070 1,930 774 640 747 396 584 1,110
22 1,730 1,260 1,440 1,470 4,010 1,880 749 710 729 388 564 1,260
23 1,620 1,270 1,340 1,590 4,030 1,850 719 680 628 429 530 1,100
24 1,490 1,250 1,440 1,730 3,990 1,820 706 776 550 542 516 920
25 1,420 1,240 1,460 1,980 3,890 1,780 691 780 522 486 482 842
26 1,390 1,380 1,420 2,270 3,780 1,750 675 947 514 479 483 882
27 1,280 2,230 1,480 2,730 3,650 1,710 677 986 505 460 511 1,110
28 1,210 1,660 1,630 2,940 3,550 1,740 672 874 494 448 496 1,600
29 1,370 1,080 1,560 3,310 3,460 1,700 669 916 502 469 533 1,350
30 1,360   1,640 3,400 3,390 1,630 633 903 553 494 681 1,590
31 1,230   1,590   3,310   609 805   482   2,040