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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 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 -> 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
1 730 621 1,030 1,260 1,430 1,440 928 389 350 415 434 402
2 774 619 992 1,250 1,350 1,570 909 322 297 445 521 483
3 699 619 948 1,260 1,300 1,540 879 317 280 434 556 569
4 671 685 1,190 1,170 1,260 1,300 795 307 204 538 481 550
5 767 796 1,320 1,130 1,180 1,160 835 311 181 430 414 496
6 806 808 1,250 1,260 1,060 1,090 759 324 179 399 368 479
7 716 748 1,170 1,250 1,030 1,060 697 371 244 334 349 487
8 654 683 1,070 1,170 1,270 1,010 804 375 297 297 322 489
9 533 721 1,090 1,160 1,380 1,020 907 337 310 269 315 441
10 501 800 1,250 1,140 1,350 977 872 309 298 234 345 432
11 482 793 1,440 1,310 1,360 1,010 799 338 277 271 368 440
12 502 807 1,430 1,440 1,450 1,080 804 354 202 286 355 420
13 629 821 1,420 1,340 1,490 1,190 610 306 244 291 374 400
14 612 783 1,390 1,270 1,570 1,340 568 306 417 292 404 430
15 589 826 1,410 1,220 1,770 1,460 554 334 469 281 378 515
16 581 839 1,350 1,240 1,900 1,510 573 358 458 259 370 573
17 533 856 1,300 1,290 1,690 1,210 715 356 390 234 362 527
18 530 993 1,290 1,400 1,680 1,090 793 356 304 232 376 463
19 527 1,250 1,380 1,540 1,590 1,270 761 294 298 243 394 411
20 579 1,440 1,530 1,560 1,560 1,430 723 290 297 235 376 389
21 621 1,660 1,360 1,470 1,340 1,430 622 292 314 217 393 406
22 738 1,630 1,170 1,410 1,260 1,420 631 293 368 206 405 407
23 877 1,480 1,080 1,380 1,170 1,530 698 263 413 245 390 384
24 932 1,390 1,050 1,500 1,180 1,360 784 276 508 263 364 407
25 958 1,290 1,130 1,660 1,240 1,290 799 221 550 340 353 524
26 870 1,160 1,160 1,570 1,380 1,180 694 253 456 360 365 619
27 782 1,180 1,040 1,550 1,480 1,070 646 255 389 363 367 691
28 703 1,100 1,100 1,420 1,600 917 571 207 410 334 414 740
29 667 861 1,140 1,300 1,650 854 489 224 373 331 414 793
30 670   1,300 1,390 1,710 816 394 276 398 367 399 813
31 657   1,350   1,530   397 367   387   778