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USGS Surface-Water 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 05585000 LA MOINE RIVER AT RIPLEY, IL


Brown County, Illinois
Hydrologic Unit Code 07130010
Latitude  40°01'30.3", Longitude  90°37'51.8" NAD83
Drainage area 1,293  square miles
Gage datum 430.57 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 1920-10-01 -> 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
1 828 706 1,150 1,610 1,300 1,420 1,170 514 186 471 500 482
2 758 696 1,050 1,650 1,390 1,450 1,150 460 237 400 571 517
3 678 681 1,000 1,540 1,360 1,390 1,070 395 268 480 638 566
4 692 664 969 1,410 1,390 1,290 882 318 328 646 651 561
5 714 720 1,080 1,450 1,420 1,250 824 279 412 702 614 524
6 711 762 1,190 1,480 1,400 1,220 763 282 371 697 551 595
7 654 772 1,270 1,500 1,400 1,170 851 302 335 643 499 606
8 636 788 1,160 1,440 1,600 1,290 944 331 346 636 385 592
9 611 765 1,120 1,370 1,660 1,300 938 389 410 575 341 525
10 578 813 1,190 1,330 1,540 1,210 966 449 447 523 407 505
11 549 860 1,250 1,540 1,540 1,110 914 465 414 456 418 499
12 492 931 1,410 1,710 1,520 1,150 786 466 390 401 399 445
13 492 958 1,500 1,750 1,510 1,190 690 438 483 439 438 450
14 521 995 1,650 1,730 1,490 1,210 705 415 688 410 435 489
15 549 938 1,740 1,660 1,470 1,340 752 382 690 384 400 536
16 546 917 1,750 1,560 1,490 1,460 751 362 676 393 425 522
17 510 1,010 1,490 1,460 1,760 1,480 670 340 671 375 498 481
18 458 1,020 1,520 1,500 2,100 1,380 582 341 568 378 554 457
19 481 1,090 1,520 1,620 2,170 1,400 582 302 501 348 671 409
20 538 1,120 1,510 1,790 2,100 1,410 639 312 355 288 673 369
21 548 1,320 1,500 1,820 2,010 1,400 650 332 263 242 654 379
22 584 1,500 1,420 1,850 1,720 1,500 802 292 325 212 673 356
23 664 1,570 1,340 1,760 1,510 1,490 919 282 363 249 624 349
24 811 1,620 1,200 1,710 1,340 1,370 922 257 378 340 511 456
25 793 1,580 1,180 1,740 1,310 1,340 913 264 471 399 458 569
26 745 1,420 1,280 1,660 1,380 1,350 909 291 613 425 422 588
27 746 1,330 1,240 1,530 1,510 1,410 895 265 658 397 435 701
28 727 1,280 1,200 1,510 1,640 1,320 778 236 626 392 526 789
29 701 1,180 1,360 1,400 1,660 1,330 696 275 568 377 522 831
30 732   1,400 1,300 1,550 1,180 599 272 487 419 521 843
31 738   1,480   1,460   602 178   447   802