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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 05590950 KASKASKIA RIVER AT CHESTERVILLE, IL


Douglas County, Illinois
Hydrologic Unit Code 07140201
Latitude  39°42'10.2", Longitude  88°23'15.9" NAD83
Drainage area 358  square miles
Gage datum 599.73 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 1994-10-01 -> 2025-09-30)

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
1 609 394 591 780 878 465 397 46 39 34 226 314
2 556 383 569 715 819 501 336 43 47 33 206 335
3 451 355 543 637 761 498 282 43 57 37 190 309
4 413 336 504 621 816 659 231 41 48 40 163 251
5 477 354 494 540 833 745 227 46 46 62 135 203
6 520 473 493 474 709 733 242 40 38 82 118 178
7 461 535 454 478 624 758 219 37 30 78 113 180
8 389 572 421 465 631 710 241 41 57 78 105 205
9 375 520 429 433 765 603 254 42 102 74 94 213
10 380 463 519 397 823 558 313 42 103 69 103 210
11 437 454 573 446 877 539 379 40 91 60 112 200
12 522 472 549 511 814 575 409 30 76 63 109 216
13 585 421 531 465 816 616 375 30 60 59 99 231
14 623 374 558 434 798 606 333 46 55 67 90 229
15 574 357 560 443 735 583 279 52 91 94 83 225
16 482 336 488 437 659 629 233 44 132 109 106 213
17 383 381 419 471 664 585 184 39 113 107 190 197
18 362 479 407 503 751 510 140 46 79 98 254 197
19 376 484 464 613 773 494 108 38 62 85 277 199
20 349 480 519 646 717 524 91 38 60 75 268 191
21 333 645 513 642 632 512 85 35 48 77 217 194
22 348 782 446 615 549 472 99 33 40 73 182 216
23 414 763 373 528 528 488 101 27 40 73 158 256
24 510 621 344 457 494 504 81 33 36 121 160 341
25 541 563 348 432 530 471 87 30 42 195 209 454
26 487 597 392 504 598 494 99 30 57 234 261 458
27 413 628 471 530 655 605 82 55 59 222 258 536
28 352 639 563 589 652 681 77 52 52 189 245 684
29 309 309 633 734 617 610 73 58 44 165 261 785
30 315   643 840 565 493 64 58 40 157 280 733
31 365   709   480   56 41   203   633