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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 07151000 Salt Fork Arkansas River at Tonkawa, OK


Kay County, Oklahoma
Hydrologic Unit Code 11060004
Latitude  36°40'19", Longitude  97°18'33" NAD27
Drainage area 4,470  square miles
Contributing drainage area 4,470  square miles
Gage datum 930.14 feet above NAVD88
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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 1941-10-01 -> 2025-09-30)

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
1 370 583 735 1,300 1,840 1,560 2,070 686 499 1,000 986 381
2 368 505 688 1,300 1,970 1,520 1,970 788 510 1,170 1,480 371
3 361 448 719 1,200 1,800 1,420 1,670 763 464 1,650 1,470 364
4 374 494 827 1,060 1,440 1,480 1,410 856 503 1,530 1,290 460
5 465 565 878 956 1,320 1,620 1,440 805 511 1,600 1,170 628
6 465 530 772 987 1,250 1,830 1,250 798 538 1,350 915 577
7 416 508 682 965 1,310 1,950 1,210 696 516 1,020 688 517
8 394 519 681 944 1,670 1,800 1,130 610 553 774 642 418
9 372 518 772 948 1,850 1,790 1,010 585 463 758 547 379
10 369 485 966 1,020 1,840 1,840 967 548 403 825 517 400
11 366 484 1,130 1,120 1,600 1,900 1,010 571 385 1,360 500 362
12 368 494 1,040 1,080 1,320 1,780 910 713 420 1,390 461 348
13 372 546 925 1,080 1,230 1,690 962 691 806 1,030 422 344
14 356 505 926 1,140 1,290 1,750 1,110 719 921 925 400 357
15 362 517 925 1,200 1,240 1,770 1,140 738 893 860 532 404
16 400 609 995 1,290 1,470 1,600 912 654 797 802 652 404
17 425 582 1,320 1,140 1,690 1,510 852 612 577 751 785 375
18 434 562 1,320 1,010 1,940 1,520 760 751 492 801 793 340
19 446 519 1,280 1,160 2,200 1,550 762 798 586 657 720 358
20 438 519 1,230 1,250 2,130 1,390 727 714 511 572 688 496
21 429 677 1,150 1,220 2,250 1,330 684 590 516 564 828 480
22 456 706 1,050 1,220 2,500 1,290 605 560 497 515 714 421
23 462 623 1,090 1,390 2,150 1,220 617 548 542 485 563 388
24 487 654 1,420 1,330 1,930 1,420 603 538 655 522 507 428
25 443 645 1,430 1,550 2,170 1,670 528 534 632 516 537 469
26 404 582 1,280 1,830 2,340 1,680 458 508 723 583 539 413
27 381 626 1,170 1,920 2,450 1,550 442 520 773 581 465 423
28 368 704 1,090 1,590 2,450 1,540 397 442 837 546 410 399
29 389 354 1,090 1,360 2,270 1,580 417 410 1,030 550 378 391
30 483   1,100 1,550 1,860 1,880 611 473 1,080 578 388 377
31 691   1,280   1,720   635 507   696   371