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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 05569500 SPOON RIVER AT LONDON MILLS, IL


Fulton County, Illinois
Hydrologic Unit Code 07130005
Latitude  40°42'27.8", Longitude  90°16'47.2" NAD83
Drainage area 1,072  square miles
Contributing drainage area 1,072.00  square miles
Gage datum 508.56 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 1942-10-01 -> 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
1 736 625 1,040 1,270 1,440 1,450 935 389 350 419 438 406
2 780 623 1,000 1,260 1,360 1,580 916 322 297 450 527 487
3 704 622 957 1,260 1,310 1,550 885 317 280 438 562 575
4 678 689 1,200 1,170 1,270 1,300 801 307 204 543 486 556
5 774 802 1,330 1,130 1,190 1,160 842 311 181 435 415 501
6 813 816 1,260 1,270 1,070 1,090 765 324 179 403 368 484
7 723 755 1,170 1,250 1,040 1,060 702 371 244 337 351 492
8 660 690 1,080 1,170 1,290 1,020 804 375 297 300 323 493
9 538 728 1,100 1,160 1,390 1,020 907 337 310 271 317 445
10 505 808 1,260 1,150 1,360 982 872 309 301 236 347 436
11 486 801 1,450 1,320 1,370 1,010 799 338 279 274 371 443
12 506 816 1,440 1,450 1,460 1,080 804 354 203 288 358 424
13 635 830 1,430 1,350 1,500 1,200 610 306 246 294 377 404
14 618 791 1,400 1,280 1,590 1,350 568 306 421 295 408 433
15 595 834 1,420 1,230 1,790 1,470 554 334 473 283 382 519
16 587 848 1,370 1,240 1,920 1,520 573 358 463 261 373 577
17 538 865 1,320 1,300 1,710 1,220 715 356 394 236 365 531
18 535 1,000 1,300 1,410 1,690 1,100 793 356 307 234 379 466
19 532 1,260 1,390 1,550 1,600 1,280 761 294 301 245 398 414
20 585 1,460 1,550 1,570 1,580 1,440 723 290 299 237 379 392
21 627 1,680 1,370 1,480 1,340 1,440 622 292 317 219 396 409
22 745 1,650 1,170 1,420 1,260 1,430 631 293 372 208 409 411
23 887 1,500 1,080 1,390 1,170 1,540 698 263 417 247 393 387
24 942 1,400 1,050 1,510 1,180 1,370 784 276 513 266 367 410
25 969 1,300 1,140 1,670 1,240 1,300 799 221 555 343 355 529
26 879 1,170 1,160 1,590 1,390 1,180 694 253 460 363 368 625
27 790 1,200 1,050 1,560 1,490 1,070 646 255 393 367 370 698
28 710 1,110 1,100 1,440 1,610 921 571 207 414 337 417 747
29 674 861 1,150 1,310 1,660 858 489 224 377 334 417 801
30 676   1,310 1,400 1,720 820 394 276 402 370 403 821
31 663   1,360   1,540   397 367   391   785