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USGS Daily Statistics for Michigan

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NOTE: During winter months, stage and discharge may be significantly affected by backwater from ice, resulting in incorrect discharge data. Consequently, discharge data may not be displayed during periods of ice effect. Click here for more information.
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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 04111000 GRAND RIVER NEAR EATON RAPIDS, MI


Eaton County, Michigan
Hydrologic Unit Code 04050004
Latitude  42°32'05", Longitude  84°37'23" NAD27
Drainage area 661  square miles
Gage datum 852.32 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 1950-10-01 -> 2026-09-30)

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
1 563 531 794 1,040 878 597 455 288 213 231 338 466
2 563 524 813 1,050 859 593 435 269 207 234 347 477
3 562 508 829 1,050 843 570 430 262 214 232 351 480
4 565 508 885 1,050 821 560 406 259 208 244 352 483
5 556 508 927 1,040 786 552 398 255 200 241 351 489
6 552 514 921 1,040 752 550 379 243 199 258 346 479
7 545 517 913 1,040 735 536 371 245 201 267 339 483
8 547 523 912 1,040 720 538 363 250 190 274 340 480
9 545 529 910 1,030 710 519 358 247 191 269 340 475
10 536 574 914 1,010 717 517 362 247 195 266 346 477
11 542 575 919 990 730 490 363 240 199 266 353 475
12 557 581 944 967 740 469 355 234 198 267 348 476
13 574 575 978 948 752 471 336 236 199 265 351 485
14 562 558 1,000 937 767 473 314 239 228 265 354 481
15 569 554 1,020 917 784 466 300 237 246 281 368 491
16 557 576 1,030 904 787 460 287 240 241 285 372 490
17 554 615 1,010 879 782 466 280 239 247 292 389 484
18 544 656 988 876 778 470 289 232 248 293 398 471
19 538 699 984 905 792 472 296 224 231 298 410 457
20 530 752 982 904 762 479 292 225 235 293 409 438
21 519 770 980 897 761 469 279 232 222 288 413 442
22 530 779 978 874 740 470 281 228 221 283 411 440
23 551 768 978 887 718 489 286 221 231 288 408 448
24 569 755 971 877 697 491 285 219 221 306 410 458
25 568 766 975 879 672 483 278 215 223 312 414 467
26 553 771 970 866 666 486 272 207 223 319 404 467
27 543 779 963 856 662 508 270 205 220 330 412 481
28 528 774 972 855 651 501 281 204 225 335 427 496
29 519 675 990 863 636 487 311 209 224 327 435 508
30 525   1,020 876 620 475 312 213 231 327 450 529
31 524   1,040   609   307 217   332   549