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USGS Daily Statistics for the Nation

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 05555300 VERMILION RIVER NEAR LEONORE, IL


Lasalle County, Illinois
Hydrologic Unit Code 07130002
Latitude  41°12'30", Longitude  88°55'50" NAD83
Drainage area 1,251  square miles
Gage datum 521.14 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 1971-10-01 -> 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 1,590 900 1,450 1,990 2,410 1,800 1,150 354 323 324 779 932
2 1,280 895 1,430 1,930 2,440 1,830 971 267 307 345 766 1,090
3 1,020 1,030 1,450 1,860 2,060 1,560 888 213 435 422 766 1,290
4 1,090 1,150 1,600 1,740 1,700 1,360 791 191 325 652 689 1,390
5 1,280 1,220 2,120 1,600 1,430 1,340 794 193 225 638 622 1,190
6 1,190 1,200 2,060 1,650 1,340 1,520 743 276 212 432 573 995
7 1,030 1,180 1,950 1,590 1,630 1,340 778 313 306 394 485 964
8 1,020 1,100 1,930 1,530 1,680 1,430 733 306 404 359 418 963
9 1,160 1,090 2,070 1,570 1,780 1,340 658 280 448 360 373 903
10 1,120 1,050 2,300 1,610 1,910 1,280 721 252 505 307 411 800
11 1,180 891 2,560 1,670 1,900 1,270 752 245 489 310 458 760
12 1,220 989 2,260 2,080 1,960 1,240 872 251 388 308 484 1,050
13 1,330 1,040 2,030 2,210 2,040 1,310 1,080 230 368 330 517 1,060
14 1,360 1,080 2,110 2,110 2,220 1,420 998 212 700 368 580 1,050
15 1,260 981 2,150 1,920 2,460 1,350 817 353 1,010 376 573 1,050
16 1,070 879 1,990 1,880 2,160 1,290 716 437 856 344 625 1,040
17 882 1,150 1,940 1,830 1,760 1,200 611 413 572 419 620 988
18 756 1,420 2,140 2,150 1,920 1,200 613 270 575 510 646 915
19 733 1,420 2,310 2,020 1,940 1,320 872 272 412 493 849 789
20 933 1,560 2,130 1,720 1,650 1,410 877 470 343 452 883 703
21 1,030 1,820 1,850 1,630 1,410 1,420 756 527 279 375 760 730
22 972 2,040 1,640 1,680 1,330 1,660 708 440 236 351 623 820
23 919 2,100 1,750 1,740 1,360 1,660 617 427 212 396 591 876
24 1,010 2,090 1,820 1,630 1,350 1,370 514 458 203 503 583 912
25 1,130 2,050 1,690 1,450 1,360 1,220 508 354 213 645 588 1,120
26 1,160 1,680 1,520 1,680 1,510 1,140 504 345 231 671 646 1,170
27 1,120 1,630 1,390 1,640 1,860 1,150 452 282 248 693 839 1,220
28 1,030 1,540 1,400 1,720 1,970 1,230 405 344 332 586 1,250 1,270
29 877 633 1,580 1,740 1,920 1,220 391 356 310 506 1,230 1,440
30 799   1,970 2,160 1,780 1,220 396 269 289 663 1,010 1,730
31 875   2,010   1,840   420 250   853   1,660