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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 05555300 VERMILION RIVER NEAR LEONORE, IL


Lasalle County, Illinois
Hydrologic Unit Code 07130002
Latitude  41°12'30", Longitude  88°55'51" NAD27
Drainage area 1,251  square miles
Gage datum 520.58 feet above NGVD29
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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 -> 2021-09-30)

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 1,620 868 1,430 1,850 2,370 1,870 1,210 371 345 339 701 971
2 1,300 872 1,430 1,820 2,450 1,900 1,020 279 328 362 727 1,120
3 1,040 1,020 1,460 1,770 2,040 1,620 923 222 466 444 747 1,320
4 1,120 1,160 1,620 1,660 1,650 1,410 817 199 348 675 679 1,430
5 1,320 1,240 2,130 1,540 1,390 1,380 803 201 239 657 615 1,220
6 1,230 1,220 2,040 1,590 1,280 1,560 743 249 226 442 569 1,020
7 1,060 1,210 1,950 1,510 1,560 1,380 794 264 328 404 480 992
8 1,050 1,130 1,950 1,450 1,630 1,480 733 245 434 338 412 992
9 1,200 1,110 2,090 1,520 1,740 1,380 643 236 481 316 367 930
10 1,120 1,070 2,340 1,590 1,910 1,320 712 227 543 283 410 822
11 1,150 903 2,630 1,680 1,930 1,310 759 225 524 301 461 771
12 1,210 1,000 2,320 2,130 2,010 1,280 894 240 416 298 488 1,050
13 1,330 1,040 2,080 2,270 2,100 1,360 1,120 225 395 296 520 1,070
14 1,340 1,100 2,160 2,160 2,270 1,480 1,030 210 754 336 590 1,070
15 1,250 998 2,210 1,960 2,460 1,400 845 363 1,090 324 585 1,070
16 1,070 891 2,050 1,920 2,170 1,340 718 453 906 299 642 1,060
17 887 1,110 1,980 1,880 1,780 1,250 615 431 605 400 638 994
18 766 1,370 2,190 2,220 1,960 1,250 624 280 608 510 665 923
19 748 1,400 2,380 2,090 1,990 1,380 905 283 435 498 882 793
20 953 1,580 2,180 1,770 1,700 1,480 915 493 362 458 919 706
21 1,050 1,860 1,890 1,680 1,450 1,480 790 554 293 379 788 739
22 993 2,060 1,680 1,730 1,360 1,740 741 462 247 355 642 836
23 939 2,050 1,790 1,800 1,400 1,740 647 447 212 404 608 895
24 1,040 2,020 1,800 1,680 1,390 1,440 538 481 199 515 599 925
25 1,110 2,040 1,620 1,490 1,410 1,280 528 371 216 527 605 1,150
26 992 1,690 1,430 1,740 1,560 1,190 522 363 237 511 667 1,190
27 923 1,650 1,340 1,680 1,920 1,200 471 296 257 559 873 1,250
28 886 1,520 1,390 1,660 2,020 1,300 422 361 347 482 1,310 1,300
29 766 636 1,590 1,600 1,980 1,290 409 374 323 407 1,280 1,480
30 725   2,010 2,040 1,840 1,280 415 282 302 485 1,060 1,750
31 828   1,930   1,910   440 262   712   1,680