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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
1 560 532 796 1,040 885 599 456 288 214 233 342 468
2 560 523 816 1,040 865 594 436 268 208 236 352 480
3 559 506 833 1,030 849 572 431 262 215 233 356 483
4 563 507 890 1,030 826 561 407 259 209 245 357 486
5 556 508 929 1,020 789 551 399 255 201 243 355 492
6 553 515 921 1,030 751 548 380 244 200 260 350 482
7 546 519 913 1,030 730 533 372 246 202 269 342 486
8 547 525 911 1,030 712 534 365 251 191 276 343 483
9 545 532 911 1,020 700 515 358 248 192 271 343 478
10 537 577 915 1,000 710 514 361 249 196 268 348 480
11 544 579 921 989 725 487 362 241 200 268 355 478
12 559 584 947 967 738 467 353 235 199 270 351 478
13 576 579 981 948 751 470 336 237 200 267 353 488
14 565 562 1,010 937 767 472 314 240 230 268 356 485
15 573 558 1,020 918 784 465 301 238 249 283 371 494
16 561 580 1,030 905 787 460 287 241 243 288 375 492
17 558 619 1,020 880 782 466 281 240 249 295 390 485
18 547 661 991 878 778 471 289 234 250 295 399 472
19 541 705 986 907 793 472 297 226 233 299 411 458
20 532 759 984 907 763 478 293 226 237 293 410 439
21 521 777 982 900 762 467 280 233 223 288 413 444
22 533 786 981 877 740 468 282 229 223 282 411 442
23 556 776 981 891 717 487 288 222 232 288 409 450
24 574 762 974 882 696 489 286 220 222 306 410 460
25 572 772 979 883 671 482 279 216 224 313 415 469
26 557 774 974 871 666 485 272 208 225 320 405 469
27 546 782 968 861 662 507 269 206 221 331 413 483
28 532 776 977 861 652 500 280 205 226 337 428 498
29 523 675 995 869 636 487 311 210 226 329 437 510
30 529   1,020 882 620 475 312 214 232 331 452 526
31 527   1,050   610   306 218   336   547