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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 05447500 GREEN RIVER NEAR GENESEO, IL


Henry County, Illinois
Hydrologic Unit Code 07090007
Latitude  41°29'20.16", Longitude  9°09'28.83" NAD83
Drainage area 1,003  square miles
Gage datum 577.68 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 1935-10-01 -> 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
1 668 610 995 1,100 1,190 1,080 879 369 397 373 505 477
2 619 587 985 1,130 1,120 1,130 798 343 350 353 589 525
3 575 585 1,030 1,110 1,030 1,110 789 355 308 392 563 566
4 595 611 1,080 1,060 987 1,050 773 366 282 385 508 533
5 650 642 1,120 1,080 950 1,030 750 362 272 371 468 506
6 627 629 1,070 1,110 904 984 751 371 266 394 466 474
7 579 613 1,010 1,070 915 945 751 373 270 412 462 477
8 549 605 1,020 1,010 1,020 936 746 437 281 369 432 490
9 555 628 1,020 1,020 1,080 1,010 769 393 303 356 417 489
10 532 692 1,100 1,050 1,100 1,010 698 372 347 400 459 487
11 512 685 1,200 1,100 1,120 1,030 727 356 324 447 476 502
12 519 672 1,200 1,070 1,160 967 694 345 291 398 460 496
13 538 698 1,170 1,010 1,270 1,070 656 335 341 384 453 491
14 541 722 1,180 1,010 1,290 1,140 655 321 445 397 456 489
15 535 702 1,220 997 1,260 1,210 629 377 443 422 437 525
16 504 674 1,140 1,050 1,230 1,190 608 363 424 400 436 546
17 532 712 1,150 1,110 1,170 1,100 578 353 403 390 428 520
18 526 812 1,190 1,110 1,210 986 577 394 416 453 425 488
19 514 954 1,300 1,060 1,180 988 580 386 416 437 439 470
20 578 1,100 1,220 1,090 1,100 992 514 451 389 406 448 457
21 575 1,130 1,110 1,150 1,080 994 516 464 388 375 439 464
22 556 1,060 1,050 1,140 1,030 1,010 580 412 410 361 430 460
23 630 1,090 1,080 1,140 1,010 997 564 353 418 398 423 451
24 769 1,100 1,070 1,180 989 1,040 520 361 444 420 427 473
25 714 1,060 1,070 1,180 982 1,030 481 401 393 435 428 558
26 664 1,000 1,020 1,140 1,080 983 463 442 388 435 429 568
27 671 1,030 988 1,110 1,110 912 488 471 415 433 440 636
28 623 1,020 977 1,120 1,100 832 467 457 461 419 469 665
29 599 799 1,040 1,110 1,160 833 416 529 426 411 478 700
30 629   1,090 1,170 1,130 882 395 504 401 430 474 711
31 630   1,100   1,080   382 414   446   718