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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
1 945 1,100 1,050 1,470 2,150 1,040 811 397 236 989 1,010 895
2 1,070 1,040 1,090 1,330 1,840 1,050 785 436 253 907 904 801
3 908 1,030 1,290 1,240 1,970 1,140 737 402 304 574 809 727
4 840 845 1,380 1,760 2,110 1,060 816 346 324 531 1,040 859
5 1,140 793 1,230 1,600 1,710 1,070 641 360 374 524 1,160 875
6 1,240 761 1,200 1,370 1,680 1,070 562 362 317 484 1,010 784
7 945 811 1,180 1,320 1,610 1,130 513 385 280 458 843 772
8 843 837 1,100 1,200 1,830 1,260 522 339 260 401 925 691
9 869 807 1,130 1,500 1,610 1,550 567 426 256 545 879 625
10 856 835 1,120 1,450 2,660 1,300 636 432 315 760 747 781
11 809 894 1,290 1,640 3,440 1,240 598 412 353 591 735 915
12 763 781 1,500 1,590 2,120 1,270 537 431 276 461 632 935
13 810 815 1,380 1,550 1,600 1,110 735 466 260 446 585 917
14 1,100 938 1,340 1,470 1,410 1,090 767 426 317 535 625 1,010
15 1,190 1,060 1,520 2,070 1,330 1,020 636 836 491 547 709 1,140
16 962 1,270 1,520 1,880 1,380 1,050 506 659 445 541 601 1,190
17 807 1,410 1,370 1,520 1,460 1,140 519 392 393 529 667 1,100
18 742 1,530 1,330 1,480 1,500 1,130 465 375 378 470 868 1,000
19 765 1,410 1,850 1,720 1,480 1,060 407 348 364 426 958 824
20 811 1,230 2,520 1,800 1,690 1,040 409 325 515 407 1,030 852
21 797 1,510 1,960 1,860 1,770 948 396 308 504 408 800 993
22 767 1,420 1,600 1,800 1,450 1,170 402 279 420 440 755 1,250
23 784 1,240 1,370 1,830 1,310 974 464 273 414 399 830 928
24 711 1,380 1,380 1,980 1,750 748 545 276 431 385 804 739
25 731 1,400 1,660 2,350 2,010 766 432 275 427 397 1,150 726
26 752 1,160 1,630 2,480 2,000 755 668 250 431 426 1,340 844
27 712 1,110 1,390 1,950 1,400 741 528 245 537 511 924 1,310
28 711 1,040 1,370 1,560 1,270 746 410 248 583 614 934 2,350
29 748 756 1,500 1,600 1,230 853 419 249 448 559 889 1,540
30 944   1,620 2,180 1,130 882 408 253 658 544 832 962
31 1,210   1,500   1,060   410 240   990   907