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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 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 -> 2019-09-30)

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
1 758 458 671 1,090 1,320 973 585 165 102 159 314 387
2 628 468 681 1,080 1,330 1,050 498 155 129 166 295 456
3 527 466 685 1,030 1,040 1,060 482 186 181 258 314 475
4 552 510 898 1,000 860 777 414 224 191 520 283 774
5 709 600 1,070 958 796 716 374 186 170 346 257 452
6 698 607 944 1,070 782 654 394 243 144 222 230 377
7 556 615 929 1,040 793 668 362 252 157 203 204 389
8 503 523 896 951 849 742 337 255 179 193 182 401
9 597 529 880 925 954 698 694 239 162 173 172 387
10 549 635 992 917 938 625 707 234 160 156 200 364
11 474 584 1,250 971 981 665 647 188 156 153 218 378
12 435 598 1,310 1,100 1,130 745 485 136 131 142 229 416
13 505 664 1,120 1,150 1,100 835 417 121 138 140 254 411
14 681 658 1,050 1,090 1,290 896 406 104 442 149 284 399
15 605 613 1,040 1,070 1,220 861 354 168 718 159 294 410
16 486 557 1,000 1,090 1,070 849 307 263 540 157 289 423
17 411 623 925 1,100 1,060 763 359 226 352 217 300 400
18 378 718 928 1,190 1,050 784 392 145 224 236 313 368
19 353 817 969 1,100 1,010 955 299 133 225 242 397 330
20 407 771 993 1,110 865 1,160 351 121 203 196 455 313
21 451 874 941 1,100 801 1,120 306 125 159 162 291 331
22 469 947 897 1,150 755 1,140 293 105 183 146 261 390
23 522 1,020 935 1,160 760 1,050 322 95 220 178 271 419
24 597 987 905 1,090 823 874 277 128 337 216 257 454
25 594 906 862 1,080 842 801 251 127 385 236 264 543
26 549 755 795 1,080 889 743 305 122 281 210 284 569
27 503 766 756 1,000 998 681 274 101 214 182 325 579
28 523 749 865 1,040 1,050 639 248 97 172 177 505 557
29 437 460 977 1,000 1,000 651 225 114 159 172 471 860
30 444   1,010 1,150 908 651 209 124 158 214 410 882
31 471   1,100   951   197 133   282   808