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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 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 57 - 58 years of record in, ft3/s   (Calculation Period 1961-10-01 -> 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
1 499 536 590 632 1,390 1,480 705 390 474 349 292 312
2 495 520 612 602 1,530 1,430 691 383 465 350 292 316
3 493 497 612 592 1,520 1,380 681 380 451 351 291 315
4 494 470 626 573 1,610 1,330 664 377 458 351 292 314
5 501 475 646 579 1,700 1,290 656 375 447 351 294 312
6 510 477 649 598 1,850 1,270 648 376 453 350 293 312
7 519 461 651 580 1,840 1,240 637 376 437 349 293 310
8 503 467 677 544 1,820 1,200 624 378 433 348 293 308
9 499 470 672 535 1,830 1,180 619 377 460 347 294 309
10 521 480 619 557 1,880 1,190 601 378 460 346 294 306
11 526 471 596 535 1,840 1,230 583 376 442 346 302 300
12 557 442 570 563 1,820 1,250 562 372 433 347 310 297
13 577 465 572 608 1,860 1,240 539 382 436 346 309 303
14 549 558 550 664 1,870 1,230 500 384 420 342 306 323
15 523 544 560 691 1,880 1,190 484 387 410 333 301 330
16 581 516 595 686 1,830 1,130 482 389 414 307 298 335
17 678 534 601 699 1,790 1,040 476 420 447 295 299 336
18 711 541 591 692 1,720 965 459 409 446 291 300 336
19 727 531 585 670 1,680 933 455 393 427 291 306 345
20 724 551 606 667 1,620 912 442 386 423 290 310 398
21 708 553 613 742 1,590 889 429 417 423 290 311 398
22 697 586 593 730 1,600 884 417 422 411 288 310 396
23 657 643 565 767 1,600 849 416 446 383 288 310 391
24 601 679 542 819 1,570 834 419 473 370 288 308 388
25 620 682 565 890 1,530 813 423 499 368 288 308 388
26 601 646 594 971 1,520 789 422 535 366 290 317 389
27 608 603 597 1,100 1,500 781 431 543 364 290 316 407
28 597 583 624 1,200 1,530 757 434 518 359 290 314 435
29 541 930 652 1,250 1,530 727 422 522 356 290 314 467
30 526   718 1,250 1,510 710 410 490 356 289 314 491
31 536   673   1,480   401 479   289   485