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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 82 - 83 years of record in, ft3/s   (Calculation Period 1935-10-01 -> 2018-09-30)

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 2,150 1,040 811 397 236 989 997 889
2 1,060 1,030 1,120 1,350 1,840 1,050 785 436 253 907 897 797
3 900 1,020 1,300 1,260 1,970 1,140 737 402 304 570 803 723
4 833 838 1,390 1,770 2,110 1,060 816 346 324 528 1,030 853
5 1,130 787 1,240 1,610 1,710 1,070 641 360 374 521 1,150 869
6 1,230 755 1,210 1,370 1,680 1,070 562 362 317 481 998 778
7 937 804 1,180 1,320 1,610 1,130 513 385 280 456 836 766
8 836 831 1,100 1,200 1,830 1,260 522 339 260 400 917 686
9 861 801 1,130 1,500 1,610 1,550 567 426 256 542 871 621
10 849 828 1,110 1,450 2,660 1,300 636 432 315 754 741 775
11 803 887 1,290 1,640 3,440 1,240 598 412 353 587 729 907
12 758 775 1,490 1,580 2,120 1,270 537 431 276 459 628 927
13 804 809 1,370 1,540 1,600 1,110 735 466 260 444 581 909
14 1,090 930 1,340 1,460 1,410 1,090 767 426 317 531 621 1,000
15 1,180 1,050 1,510 2,060 1,330 1,020 636 836 491 544 703 1,120
16 954 1,260 1,510 1,870 1,380 1,050 506 659 445 537 597 1,180
17 800 1,400 1,360 1,510 1,460 1,140 519 392 393 526 662 1,090
18 736 1,520 1,320 1,470 1,500 1,130 465 375 378 468 861 992
19 759 1,400 1,830 1,710 1,480 1,060 407 348 364 425 950 817
20 804 1,220 2,500 1,790 1,690 1,040 409 325 515 406 1,020 844
21 791 1,530 1,940 1,850 1,770 948 396 308 504 406 794 984
22 762 1,490 1,590 1,790 1,450 1,170 402 279 420 438 749 1,230
23 779 1,270 1,350 1,830 1,310 974 464 273 414 400 823 921
24 709 1,510 1,370 1,980 1,750 748 545 276 431 390 798 735
25 729 1,760 1,650 2,340 2,010 766 432 275 427 399 1,140 725
26 748 1,290 1,620 2,480 2,000 755 668 250 431 426 1,330 840
27 709 1,160 1,400 1,950 1,400 741 528 245 537 510 916 1,300
28 707 1,090 1,530 1,560 1,270 746 410 248 583 611 926 2,330
29 743 756 1,620 1,600 1,230 853 419 249 448 556 881 1,520
30 937   1,720 2,180 1,130 882 408 253 658 542 825 954
31 1,200   1,550   1,060   410 240   981   900