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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.

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 -> 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
1 563 531 794 1,040 885 599 456 288 214 233 340 466
2 563 524 813 1,050 865 594 436 268 208 236 350 477
3 562 508 829 1,050 849 572 431 262 215 233 354 480
4 565 508 885 1,050 826 561 407 259 209 245 355 483
5 556 508 927 1,040 789 551 399 255 201 243 354 489
6 552 514 921 1,040 751 548 380 244 200 260 349 479
7 545 517 913 1,040 730 533 372 246 202 269 342 483
8 547 523 912 1,040 712 534 365 251 191 276 342 480
9 545 529 910 1,030 700 515 358 248 192 271 342 475
10 536 574 914 1,010 710 514 361 249 196 268 348 477
11 542 575 919 990 725 487 362 241 200 268 355 475
12 557 581 944 967 738 467 353 235 199 270 351 476
13 574 575 978 948 751 470 336 237 200 267 353 485
14 562 558 1,000 937 767 472 314 240 230 268 356 481
15 569 554 1,020 917 784 465 301 238 249 283 371 491
16 557 576 1,030 904 787 460 287 241 243 288 375 490
17 554 615 1,010 879 782 466 281 240 249 295 389 484
18 544 656 988 876 778 471 289 234 250 295 398 471
19 538 699 984 905 793 472 297 226 233 299 410 457
20 530 752 982 904 763 478 293 226 237 293 409 438
21 519 770 980 900 762 467 280 233 223 288 413 442
22 530 779 978 877 740 468 282 229 223 282 411 440
23 551 768 978 891 717 487 288 222 232 288 408 448
24 569 755 971 882 696 489 286 220 222 306 410 458
25 568 766 975 883 671 482 279 216 224 313 414 467
26 553 771 970 871 666 485 272 208 225 320 404 467
27 543 779 963 861 662 507 269 206 221 331 412 481
28 528 774 972 861 652 500 280 205 226 337 427 496
29 519 675 990 869 636 487 311 210 226 329 435 508
30 525   1,020 882 620 475 312 214 232 330 450 529
31 524   1,040   610   306 218   335   549