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USGS Daily Statistics for Wyoming

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Questions or concerns about USGS data and data products in Wyoming and Montana can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 -> 2024-09-30)

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
1 409 376 413 501 651 2,430 4,670 2,970 1,500 916 671 532
2 408 376 414 503 662 2,540 4,660 2,900 1,480 906 665 529
3 406 375 416 507 676 2,640 4,640 2,840 1,450 896 660 525
4 404 376 418 508 692 2,750 4,630 2,770 1,420 884 655 520
5 401 377 419 510 709 2,860 4,610 2,710 1,390 875 650 515
6 399 377 422 514 732 2,980 4,580 2,650 1,370 864 645 508
7 398 377 424 517 756 3,100 4,540 2,590 1,340 856 641 503
8 398 376 427 519 783 3,230 4,510 2,520 1,310 846 636 497
9 397 376 429 522 814 3,340 4,470 2,460 1,290 837 631 490
10 396 378 431 524 845 3,460 4,430 2,410 1,270 829 626 487
11 396 380 437 528 879 3,550 4,380 2,350 1,250 821 621 483
12 396 382 439 531 914 3,640 4,330 2,300 1,220 812 616 480
13 396 383 441 533 952 3,730 4,280 2,250 1,200 803 610 477
14 395 385 444 535 989 3,820 4,220 2,200 1,180 794 604 474
15 393 385 446 538 1,030 3,900 4,150 2,150 1,170 786 600 469
16 391 388 450 541 1,080 3,990 4,090 2,100 1,150 780 595 464
17 391 389 453 544 1,130 4,070 4,030 2,060 1,130 772 591 461
18 390 390 456 547 1,200 4,160 3,960 2,010 1,110 764 587 458
19 390 392 459 551 1,260 4,230 3,890 1,970 1,100 757 584 453
20 389 393 460 557 1,320 4,290 3,820 1,930 1,080 750 579 449
21 388 396 465 563 1,390 4,350 3,740 1,890 1,060 742 575 444
22 387 397 468 568 1,480 4,400 3,670 1,850 1,050 735 569 441
23 387 398 472 574 1,560 4,450 3,600 1,810 1,040 729 564 437
24 387 400 475 581 1,650 4,510 3,530 1,770 1,020 723 560 434
25 386 402 478 589 1,730 4,550 3,460 1,730 1,000 716 556 433
26 385 405 481 600 1,810 4,590 3,380 1,700 991 709 551 431
27 384 407 485 608 1,900 4,620 3,310 1,660 978 704 547 429
28 382 408 487 617 2,010 4,650 3,240 1,630 965 696 542 424
29 380 434 489 627 2,110 4,660 3,170 1,600 955 690 539 421
30 380   492 637 2,220 4,670 3,100 1,570 945 684 534 419
31 380   494   2,320   3,030 1,540   677   417