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USGS Surface-Water 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 05567500 MACKINAW RIVER NEAR CONGERVILLE, IL


Woodford County, Illinois
Hydrologic Unit Code 07130004
Latitude  40°37'25", Longitude  89°14'30" NAD27
Drainage area 767  square miles
Gage datum 607.01 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 1944-10-01 -> 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
1 750 460 683 1,080 1,380 967 595 166 100 170 354 390
2 624 471 690 1,070 1,350 1,040 505 156 127 169 319 457
3 523 473 695 1,020 1,080 1,050 484 186 177 258 329 473
4 547 518 899 992 867 772 415 221 187 512 293 763
5 698 606 1,060 948 802 712 375 185 166 342 264 449
6 687 609 937 1,060 786 651 392 236 141 221 235 374
7 549 615 919 1,030 795 664 360 247 154 202 208 385
8 497 523 886 941 847 735 340 250 177 191 186 397
9 588 528 870 914 969 693 682 236 161 172 175 383
10 542 631 986 906 982 621 694 232 158 155 201 360
11 498 583 1,240 960 1,010 659 636 186 154 153 219 373
12 490 598 1,300 1,080 1,140 737 481 138 130 141 229 411
13 565 663 1,110 1,130 1,100 823 429 137 140 139 252 408
14 709 654 1,030 1,070 1,280 882 421 128 434 148 283 396
15 622 608 1,030 1,050 1,220 848 376 187 701 157 292 406
16 502 554 992 1,080 1,080 836 497 264 528 155 286 418
17 424 617 921 1,080 1,080 751 469 225 345 214 297 396
18 386 713 935 1,170 1,140 772 440 146 219 232 310 364
19 364 817 1,010 1,080 1,170 938 340 134 220 239 392 327
20 417 770 1,040 1,090 963 1,140 397 121 199 193 448 310
21 451 866 978 1,090 847 1,090 330 125 157 160 288 328
22 467 936 917 1,130 779 1,120 309 105 180 145 261 385
23 522 1,010 946 1,140 778 1,040 330 95 216 177 270 413
24 595 993 914 1,070 842 858 282 126 330 213 256 447
25 594 940 870 1,100 850 787 254 125 376 233 263 533
26 549 785 803 1,160 917 737 305 121 275 207 283 559
27 503 787 766 1,080 1,020 709 274 101 211 199 323 569
28 522 765 876 1,070 1,050 703 247 96 211 198 497 547
29 437 505 992 1,030 1,010 713 225 112 207 182 464 847
30 443   1,020 1,230 911 682 209 122 184 234 407 876
31 473   1,090   949   197 130   329   802