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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS streamflow data in Wyoming and Montana can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

UPDATED October 1, 2019: USGS streamflow monitoring will continue at the following site effective October 1, 2019:
  • 09219200 Blacks Fork above Smiths Fork, near Lyman, WY (2018 to present)
USGS monitoring activities at this site will be funded by a partner agency. Partner funding for this site will result in continuation of streamflow monitoring activities. Questions or concerns can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

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 06186500 Yellowstone River at Yellowstone Lk Outlet YNP


Teton County, Wyoming
Hydrologic Unit Code 10070001
Latitude  44°34'01.53", Longitude 110°22'49.46" NAD83
Drainage area 995  square miles
Gage datum 7,727.77 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 1926-10-01 -> 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
1 411 377 411 497 651 2,410 4,680 2,990 1,510 920 673 533
2 409 377 411 500 663 2,520 4,680 2,930 1,490 910 667 530
3 407 376 413 503 676 2,620 4,670 2,860 1,460 901 663 526
4 405 376 414 505 692 2,730 4,650 2,790 1,430 889 657 522
5 402 377 416 506 709 2,830 4,630 2,730 1,400 879 652 517
6 400 377 418 510 732 2,950 4,600 2,670 1,370 868 646 510
7 400 376 420 513 755 3,070 4,570 2,610 1,350 860 642 505
8 399 376 423 516 782 3,200 4,540 2,540 1,320 850 637 498
9 398 376 426 518 814 3,310 4,500 2,480 1,300 841 632 491
10 398 378 428 521 846 3,430 4,460 2,430 1,280 833 627 488
11 398 379 433 525 880 3,520 4,410 2,370 1,260 825 622 484
12 398 381 436 528 916 3,610 4,360 2,320 1,230 816 617 481
13 398 383 438 530 953 3,700 4,310 2,270 1,210 807 610 478
14 397 384 441 532 989 3,790 4,260 2,220 1,190 798 605 474
15 395 385 442 535 1,030 3,870 4,190 2,170 1,180 790 600 471
16 392 387 447 539 1,080 3,970 4,130 2,120 1,160 784 596 465
17 392 388 450 541 1,130 4,050 4,060 2,070 1,140 776 592 462
18 392 389 452 545 1,190 4,140 3,990 2,030 1,120 768 588 459
19 391 391 455 548 1,250 4,220 3,920 1,980 1,100 761 585 454
20 390 392 457 555 1,320 4,280 3,850 1,940 1,090 754 580 450
21 389 395 462 562 1,390 4,340 3,770 1,900 1,070 746 576 446
22 388 395 465 566 1,470 4,400 3,700 1,860 1,060 739 570 443
23 388 397 469 573 1,550 4,450 3,630 1,830 1,040 732 565 439
24 388 398 472 580 1,640 4,510 3,560 1,780 1,030 726 561 436
25 387 400 475 589 1,720 4,560 3,490 1,740 1,010 719 557 434
26 386 404 478 600 1,800 4,590 3,410 1,710 996 711 552 432
27 384 405 481 608 1,900 4,630 3,340 1,680 983 706 548 431
28 382 406 483 617 2,000 4,660 3,270 1,640 970 699 544 426
29 380 422 486 627 2,100 4,670 3,200 1,610 961 692 540 423
30 381   488 638 2,200 4,680 3,130 1,580 950 686 536 421
31 381   490   2,310   3,060 1,550   680   418