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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 water year of record in, ft3/s   (Calculation Period 1935-10-01 -> 2020-09-30)

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
1 968 1,090 1,090 1,510 2,150 1,060 812 402 245 982 1,040 1,000
2 1,090 1,030 1,120 1,360 1,970 1,060 785 440 261 900 924 861
3 923 1,020 1,300 1,260 2,020 1,150 742 404 309 570 826 768
4 873 839 1,390 1,770 2,260 1,060 816 349 328 528 1,040 879
5 1,230 787 1,230 1,610 1,820 1,070 643 364 376 520 1,150 887
6 1,270 756 1,200 1,370 1,730 1,060 564 365 319 482 1,010 794
7 965 805 1,170 1,320 1,680 1,170 517 386 283 792 886 779
8 860 842 1,100 1,200 1,870 1,400 538 341 263 575 1,080 698
9 880 815 1,120 1,500 1,650 1,580 575 427 259 595 938 633
10 870 836 1,130 1,450 2,660 1,310 639 438 317 787 782 782
11 929 892 1,300 1,630 3,420 1,250 600 418 354 661 758 909
12 964 786 1,490 1,570 2,120 1,270 540 433 278 614 653 927
13 909 840 1,380 1,540 1,610 1,110 732 465 262 500 605 909
14 1,150 951 1,350 1,470 1,420 1,080 762 426 317 570 640 998
15 1,220 1,070 1,520 2,080 1,330 1,020 633 826 488 575 718 1,120
16 984 1,270 1,510 1,890 1,380 1,050 505 659 443 562 612 1,170
17 827 1,400 1,360 1,520 1,460 1,140 518 397 392 547 674 1,090
18 785 1,510 1,320 1,470 1,500 1,120 466 385 377 487 867 992
19 834 1,390 1,830 1,710 1,480 1,060 410 368 363 442 953 820
20 876 1,220 2,480 1,790 1,680 1,040 412 335 510 420 1,020 845
21 840 1,520 1,930 1,840 1,770 949 398 315 499 422 798 981
22 800 1,490 1,580 1,780 1,500 1,160 405 287 418 463 754 1,220
23 810 1,270 1,350 1,820 1,340 1,050 464 280 412 421 834 918
24 738 1,500 1,370 1,960 1,760 990 543 288 433 413 809 736
25 754 1,750 1,640 2,320 2,010 913 433 288 455 515 1,140 725
26 769 1,280 1,610 2,450 1,980 798 662 260 459 550 1,320 838
27 728 1,160 1,400 1,940 1,400 767 525 264 584 597 918 1,280
28 724 1,080 1,520 1,550 1,270 761 409 262 604 666 928 2,330
29 748 756 1,610 1,590 1,220 860 418 261 461 595 885 1,550
30 938   1,710 2,150 1,180 885 409 262 661 584 862 988
31 1,200   1,560   1,120   411 249   1,050   925