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USGS Daily Statistics for Illinois

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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 05591200 KASKASKIA RIVER AT COOKS MILLS, IL


Coles County, Illinois
Hydrologic Unit Code 07140201
Latitude  39°35'00.5", Longitude  88°24'49.7" NAD83
Drainage area 473  square miles
Gage datum 616.89 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 1970-10-01 -> 2024-09-30)

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
1 817 459 706 882 875 557 436 228 98 138 180 487
2 752 453 652 834 896 550 390 260 86 135 224 484
3 661 444 669 776 868 576 356 301 80 131 240 476
4 609 436 743 724 881 630 362 293 79 148 260 469
5 624 453 796 695 848 699 390 238 75 180 245 453
6 667 510 815 687 775 677 412 189 64 191 217 428
7 603 576 776 638 751 721 408 156 52 161 194 418
8 517 577 709 598 744 704 364 137 56 145 174 406
9 440 534 685 581 781 682 334 112 74 136 159 394
10 410 491 688 562 785 636 324 89 95 140 158 372
11 458 477 687 583 798 594 312 83 103 149 178 400
12 504 495 738 716 831 591 321 96 90 156 238 444
13 535 483 767 816 899 575 354 103 77 151 275 475
14 542 473 780 827 881 577 349 107 74 153 274 468
15 538 441 757 775 838 593 319 114 84 150 282 480
16 505 428 731 762 841 595 290 130 109 144 279 502
17 455 462 691 736 777 581 251 141 145 138 307 514
18 421 563 665 731 828 535 204 127 143 139 363 497
19 413 622 679 777 964 561 167 105 117 159 386 457
20 440 661 730 758 911 591 159 88 96 159 421 429
21 470 779 763 716 811 596 187 79 84 149 406 401
22 523 946 728 760 740 593 227 67 72 141 364 409
23 572 1,110 664 822 674 664 226 55 68 139 326 410
24 576 1,150 617 776 623 648 201 47 72 152 306 416
25 575 1,040 612 699 590 624 188 47 84 178 310 485
26 559 886 616 705 618 567 195 48 111 197 335 537
27 523 819 627 702 726 573 215 64 125 215 378 653
28 496 760 691 720 756 595 225 78 138 210 425 748
29 459 342 756 783 692 560 213 83 149 191 456 793
30 437   798 847 641 495 206 103 145 173 475 860
31 437   858   590   215 101   162   864