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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 11526250 TRINITY R A JUNCTION CITY CA


Trinity County, California
Hydrologic Unit Code 18010211
Latitude  40°43'43", Longitude 123°03'39" NAD27
Drainage area 1,057  square miles
Gage datum 1,445.35 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 1,130 1,070 1,300 1,170 3,250 2,550 1,320 548 761 482 374 473
2 998 1,240 1,350 1,120 3,430 2,460 1,280 540 778 482 383 579
3 960 1,340 1,290 1,100 3,620 2,390 1,250 534 796 484 373 479
4 1,030 1,400 1,240 1,100 3,810 2,330 1,220 523 766 487 377 488
5 1,020 1,390 1,230 1,130 3,960 2,250 1,190 512 794 489 368 538
6 916 1,390 1,410 1,150 4,160 2,210 1,160 511 787 487 370 531
7 919 1,500 1,330 1,250 4,120 2,180 1,140 512 750 484 385 533
8 1,150 1,310 1,230 1,190 4,000 2,100 1,110 509 720 483 392 536
9 1,220 1,420 1,200 1,260 3,910 1,970 1,080 506 748 484 393 500
10 1,200 1,300 1,290 1,190 3,900 1,920 1,020 507 777 488 387 535
11 1,220 1,160 1,270 1,260 3,730 1,880 957 506 732 488 376 619
12 1,240 1,080 1,260 1,480 3,570 1,840 903 504 699 485 375 554
13 1,470 1,080 1,280 1,470 3,550 1,790 855 508 692 489 381 574
14 1,520 1,160 1,410 1,370 3,660 1,780 812 528 665 494 379 851
15 1,340 1,130 1,360 1,420 3,580 1,740 778 527 663 478 376 825
16 1,230 1,260 1,280 1,730 3,490 1,700 754 529 654 441 379 866
17 1,390 1,490 1,210 2,140 3,370 1,680 741 580 731 368 374 653
18 1,380 1,450 1,110 2,270 3,380 1,620 716 602 764 345 375 598
19 1,400 1,310 1,100 2,060 3,530 1,600 693 577 733 351 383 722
20 1,400 1,440 1,210 2,020 3,400 1,550 673 557 683 351 400 764
21 1,360 1,400 1,250 2,010 3,200 1,530 654 643 675 340 456 780
22 1,320 1,330 1,250 2,180 3,120 1,490 633 669 655 346 536 825
23 1,230 1,290 1,140 2,330 3,100 1,490 607 671 566 345 447 759
24 1,140 1,260 1,170 2,410 3,050 1,460 599 741 514 394 419 854
25 1,100 1,270 1,150 2,410 3,010 1,420 594 783 497 375 416 962
26 1,080 1,380 1,130 2,570 2,910 1,420 589 891 492 363 413 943
27 1,030 1,770 1,180 2,820 2,860 1,420 592 919 488 359 416 1,150
28 1,020 1,440 1,270 2,840 2,810 1,380 590 840 480 364 406 1,570
29 1,050 1,390 1,160 3,170 2,750 1,370 584 874 480 372 423 1,310
30 1,030   1,220 3,290 2,690 1,330 561 850 483 370 476 1,370
31 983   1,210   2,630   546 790   370   1,460