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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 07196500 Illinois River near Tahlequah, OK


Cherokee County, Oklahoma
Hydrologic Unit Code 11110103
Latitude  35°55'22", Longitude  94°55'24" NAD27
Drainage area 950  square miles
Contributing drainage area 950  square miles
Gage datum 664.14 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 83 - 84 years of record in, ft3/s   (Calculation Period 1935-10-01 -> 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
1 938 1,090 1,100 1,510 2,130 1,030 805 400 237 980 988 889
2 1,060 1,030 1,120 1,350 1,820 1,040 779 438 254 898 889 797
3 900 1,020 1,300 1,260 1,970 1,140 732 402 303 566 798 723
4 833 838 1,390 1,770 2,230 1,050 810 346 323 524 1,020 853
5 1,130 787 1,240 1,610 1,780 1,060 636 359 373 517 1,140 869
6 1,230 755 1,210 1,370 1,710 1,060 558 361 316 478 995 778
7 937 804 1,180 1,320 1,630 1,120 510 384 280 453 833 766
8 836 831 1,100 1,200 1,840 1,250 520 338 260 398 911 686
9 861 801 1,130 1,500 1,620 1,530 564 425 256 538 866 621
10 849 828 1,110 1,450 2,650 1,290 632 430 315 747 737 775
11 803 887 1,290 1,640 3,420 1,230 594 411 352 583 725 907
12 758 775 1,490 1,580 2,110 1,260 534 429 276 457 624 927
13 804 809 1,370 1,540 1,600 1,100 730 463 260 441 579 909
14 1,090 930 1,340 1,460 1,400 1,080 761 425 316 528 618 1,000
15 1,180 1,050 1,510 2,060 1,320 1,010 632 830 488 540 699 1,120
16 954 1,260 1,510 1,870 1,380 1,050 503 661 443 534 594 1,180
17 800 1,400 1,360 1,510 1,450 1,130 516 396 391 522 658 1,090
18 736 1,520 1,320 1,470 1,500 1,120 464 383 376 466 855 992
19 759 1,400 1,830 1,710 1,480 1,050 407 367 363 422 942 817
20 804 1,220 2,500 1,790 1,680 1,030 410 334 511 404 1,010 844
21 791 1,530 1,940 1,850 1,750 940 396 314 501 404 788 984
22 762 1,490 1,590 1,790 1,440 1,160 402 285 419 437 743 1,230
23 779 1,270 1,350 1,830 1,310 966 463 277 412 398 816 921
24 709 1,510 1,370 1,980 1,750 743 542 279 432 389 791 735
25 729 1,760 1,650 2,340 2,010 761 431 277 426 397 1,130 725
26 748 1,290 1,620 2,470 1,990 750 663 252 430 424 1,320 840
27 709 1,160 1,400 1,950 1,400 736 525 247 534 507 908 1,300
28 707 1,090 1,530 1,560 1,270 741 408 249 579 606 918 2,330
29 743 756 1,620 1,590 1,220 847 417 250 445 553 881 1,520
30 937   1,720 2,160 1,130 875 407 253 653 538 825 954
31 1,200   1,550   1,060   409 241   973   900