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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 11525500 TRINITY R A LEWISTON CA


Trinity County, California
Hydrologic Unit Code 18010211
Latitude  40°43'29", Longitude 122°48'04" NAD83
Drainage area 719  square miles
Gage datum 1,830 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 1961-10-01 -> 2020-09-30)

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
1 496 532 585 627 1,450 1,480 724 395 477 351 292 312
2 491 516 607 597 1,560 1,430 708 387 497 352 292 316
3 490 494 607 587 1,550 1,380 696 383 474 352 291 315
4 490 467 620 568 1,640 1,330 679 380 470 353 292 313
5 498 472 640 574 1,710 1,300 669 378 450 353 294 312
6 507 474 643 593 1,860 1,290 660 379 453 352 293 312
7 516 459 645 575 1,850 1,280 648 379 438 351 293 309
8 500 464 670 540 1,830 1,220 633 380 434 350 294 308
9 495 467 666 531 1,830 1,200 627 380 460 348 294 309
10 517 477 614 548 1,880 1,200 608 380 460 347 294 306
11 522 468 591 527 1,840 1,230 590 378 443 347 302 300
12 553 440 566 555 1,820 1,260 569 375 439 348 309 297
13 572 462 567 598 1,850 1,250 546 384 448 348 309 303
14 545 554 546 669 1,870 1,240 507 387 432 343 306 323
15 519 540 556 736 1,880 1,200 491 389 421 333 301 329
16 576 512 590 728 1,840 1,140 489 391 423 307 298 334
17 671 530 595 822 1,800 1,050 482 421 455 295 299 335
18 704 537 586 808 1,750 978 465 410 454 291 300 335
19 720 527 581 749 1,780 943 461 395 433 291 306 344
20 717 546 600 720 1,670 922 449 388 426 290 310 397
21 701 549 608 774 1,620 901 436 418 424 290 310 396
22 690 581 588 773 1,620 897 423 423 413 288 310 394
23 651 637 561 832 1,610 872 422 446 385 288 310 389
24 596 672 538 891 1,590 850 424 472 372 288 308 387
25 615 675 560 943 1,550 829 428 498 370 288 308 387
26 596 640 590 1,000 1,530 824 427 533 369 290 317 387
27 602 598 592 1,120 1,500 810 436 540 367 290 316 405
28 592 578 618 1,220 1,540 779 438 516 362 290 313 432
29 537 888 646 1,370 1,540 748 426 520 359 290 314 464
30 522   710 1,380 1,510 731 414 489 358 289 313 488
31 532   666   1,480   405 479   289   482