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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°42'28", Longitude  90°16'48" NAD83
Drainage area 1,072  square miles
Contributing drainage area 1,072.00  square miles
Gage datum 508.97 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 1942-10-01 -> 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
1 749 600 1,040 1,250 1,440 1,480 948 389 351 431 426 412
2 796 603 1,010 1,230 1,370 1,620 922 321 299 463 523 496
3 718 609 963 1,220 1,310 1,590 882 316 285 451 562 586
4 689 683 1,220 1,120 1,260 1,330 797 308 206 561 485 566
5 785 804 1,350 1,090 1,190 1,180 850 310 183 448 413 510
6 829 821 1,260 1,210 1,060 1,110 771 316 180 414 365 492
7 737 760 1,170 1,190 1,030 1,070 708 348 250 346 348 501
8 673 693 1,080 1,130 1,280 1,020 802 360 306 305 320 503
9 547 731 1,100 1,130 1,380 1,030 886 330 320 276 315 452
10 512 810 1,260 1,130 1,360 995 868 305 307 240 347 442
11 492 800 1,470 1,320 1,380 1,030 793 332 285 273 371 449
12 514 818 1,460 1,450 1,470 1,100 802 339 205 262 358 429
13 649 832 1,450 1,350 1,520 1,220 606 298 250 279 378 409
14 632 794 1,410 1,270 1,600 1,370 561 304 432 277 412 439
15 608 839 1,420 1,230 1,810 1,500 551 335 486 269 385 527
16 599 853 1,370 1,240 1,950 1,560 538 356 476 253 376 585
17 549 870 1,300 1,300 1,740 1,250 687 356 405 231 369 536
18 545 1,000 1,290 1,420 1,720 1,120 791 359 314 232 383 472
19 541 1,270 1,400 1,560 1,630 1,310 766 297 308 244 403 420
20 594 1,480 1,560 1,580 1,610 1,480 731 294 306 236 384 397
21 636 1,710 1,380 1,480 1,360 1,480 629 297 324 219 401 415
22 760 1,670 1,180 1,410 1,270 1,470 639 298 381 208 415 417
23 906 1,460 1,070 1,390 1,190 1,590 711 267 428 249 398 393
24 961 1,380 1,010 1,520 1,200 1,410 801 281 527 261 372 416
25 984 1,300 1,100 1,690 1,260 1,330 816 224 571 271 360 538
26 878 1,180 1,110 1,600 1,410 1,180 710 258 473 292 374 637
27 756 1,200 993 1,550 1,500 1,060 660 260 404 306 376 709
28 676 1,120 1,080 1,410 1,630 919 583 206 426 307 425 759
29 642 879 1,130 1,270 1,680 861 497 223 387 311 425 816
30 649   1,310 1,390 1,750 825 396 280 414 345 410 837
31 636   1,350   1,570   398 377   370   800