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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
1 499 536 590 632 1,440 1,490 728 394 477 351 292 312
2 495 520 612 602 1,560 1,440 712 386 498 352 292 316
3 493 497 612 592 1,560 1,390 700 382 474 352 291 315
4 494 470 626 573 1,640 1,340 683 379 470 353 292 314
5 501 475 646 579 1,720 1,310 673 377 450 353 294 312
6 510 477 649 598 1,870 1,300 664 377 453 352 293 312
7 519 461 651 580 1,850 1,280 651 377 438 349 293 310
8 503 467 677 544 1,840 1,230 636 379 434 348 293 308
9 499 470 672 535 1,840 1,200 630 378 460 347 294 309
10 521 480 619 553 1,890 1,210 611 379 460 346 294 306
11 526 471 596 531 1,850 1,240 592 377 442 346 302 300
12 557 442 570 559 1,830 1,270 571 374 434 347 310 297
13 577 465 572 603 1,870 1,250 547 383 437 346 309 303
14 549 558 550 661 1,890 1,240 508 385 421 342 306 323
15 523 544 560 733 1,890 1,200 492 387 411 333 301 330
16 581 516 595 730 1,860 1,140 490 390 415 307 298 335
17 678 534 601 814 1,810 1,050 483 421 448 295 299 336
18 711 541 591 808 1,770 979 465 410 447 291 300 336
19 727 531 585 744 1,790 946 461 394 429 291 306 345
20 724 551 606 715 1,680 926 448 387 425 290 310 398
21 708 553 613 777 1,630 905 436 418 424 290 311 398
22 697 586 593 761 1,630 901 423 422 412 288 310 396
23 657 643 565 794 1,620 876 421 446 384 288 310 391
24 601 679 542 842 1,610 855 424 472 371 288 308 388
25 620 682 565 910 1,570 833 428 499 369 288 308 388
26 601 646 594 989 1,540 828 427 534 367 290 317 389
27 608 603 597 1,110 1,510 815 436 542 366 290 316 407
28 597 583 624 1,220 1,550 784 438 517 361 290 314 435
29 541 930 652 1,370 1,550 753 426 521 358 290 314 467
30 526   718 1,380 1,530 735 413 489 358 289 314 491
31 536   673   1,490   404 479   289   485