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USGS Daily Statistics for Oklahoma

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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 07196090 Illinois River at Chewey, OK


Adair County, Oklahoma
Hydrologic Unit Code 11110103
Latitude  36°06'15", Longitude  94°46'57" NAD27
Drainage area 825  square miles
Contributing drainage area 825  square miles
Gage datum 800.91 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 2009-10-01 -> 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 1,140 696 964 1,370 3,370 1,350 511 483 310 280 699 1,190
2 1,230 649 821 1,160 2,690 1,320 510 403 317 282 597 908
3 988 619 1,030 1,090 2,580 1,100 569 374 356 278 536 723
4 1,220 737 1,220 1,090 3,230 1,110 580 470 348 269 497 669
5 1,230 1,000 875 1,060 5,720 1,240 541 387 299 315 588 654
6 896 872 821 981 3,910 1,080 542 361 278 818 559 617
7 785 780 762 904 2,260 1,450 548 365 269 2,340 948 568
8 765 919 821 881 1,900 1,370 893 490 268 628 1,290 542
9 714 1,130 997 811 1,920 1,160 893 758 285 491 1,280 615
10 762 905 1,150 778 2,290 962 1,240 589 422 485 783 573
11 1,730 813 1,290 887 2,490 989 855 471 328 1,220 655 667
12 1,530 851 1,040 946 1,830 791 623 420 295 964 608 571
13 1,190 961 1,000 1,320 1,630 717 688 419 275 647 549 818
14 954 829 1,260 1,550 1,440 690 930 665 267 886 504 1,450
15 839 805 1,790 1,200 1,290 736 666 588 287 715 483 1,210
16 763 829 1,320 1,030 1,550 738 727 476 298 601 461 1,030
17 722 916 1,540 968 1,330 728 829 487 280 494 474 906
18 857 981 1,300 1,380 1,340 741 804 690 290 435 758 1,810
19 1,030 754 1,640 1,620 1,140 1,310 660 521 314 400 527 1,320
20 952 692 3,050 1,010 1,580 1,390 509 532 336 387 456 913
21 770 1,080 1,800 933 2,260 777 452 445 351 452 451 896
22 704 957 1,770 2,160 2,060 683 498 414 339 484 602 1,040
23 745 945 1,460 1,530 1,670 1,160 625 402 360 458 715 836
24 774 1,960 1,550 2,110 4,390 1,800 470 429 385 544 602 761
25 896 2,310 1,770 5,390 3,740 834 418 375 623 1,120 627 804
26 1,220 1,040 1,630 6,220 3,040 711 414 341 489 842 627 853
27 945 921 1,740 3,130 2,260 766 388 348 495 785 692 3,910
28 832 1,020 2,330 2,830 2,060 672 407 372 357 745 1,210 7,050
29 788 558 1,590 5,550 1,730 584 401 327 330 970 983 2,190
30 795   1,620 7,440 1,940 534 391 319 302 991 1,080 1,200
31 769   1,670   1,650   535 334   921   990