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USGS Daily Statistics for Michigan

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NOTE: During winter months, stage and discharge may be affected by ice. 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 04114000 GRAND RIVER AT PORTLAND, MI


Ionia County, Michigan
Hydrologic Unit Code 04050004
Latitude  42°51'23", Longitude  84°54'44" NAD27
Drainage area 1,385  square miles
Gage datum 704.52 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 1951-10-01 -> 2020-09-30)

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 1,280 1,130 1,590 2,230 1,860 1,160 881 548 434 551 666 1,050
2 1,210 1,110 1,650 2,190 1,830 1,150 827 529 427 573 701 1,060
3 1,170 1,090 1,730 2,160 1,760 1,110 811 511 419 589 752 1,030
4 1,130 1,050 1,840 2,150 1,670 1,080 762 506 432 573 746 1,010
5 1,130 1,020 2,000 2,130 1,590 1,040 771 508 421 553 771 986
6 1,130 1,030 2,040 2,130 1,500 1,030 734 505 398 554 818 961
7 1,110 1,040 2,030 2,160 1,450 1,020 703 482 399 573 787 962
8 1,120 1,050 2,020 2,130 1,400 1,030 720 480 412 567 766 962
9 1,110 1,080 2,040 2,110 1,380 1,040 713 492 442 557 740 968
10 1,100 1,170 2,060 2,070 1,440 1,020 700 498 450 564 760 937
11 1,120 1,190 2,090 2,040 1,510 1,010 654 528 440 559 760 930
12 1,140 1,200 2,170 2,050 1,570 968 623 480 426 549 742 921
13 1,230 1,180 2,240 1,990 1,600 963 611 462 415 537 748 952
14 1,270 1,130 2,320 1,900 1,630 1,020 612 472 447 544 746 942
15 1,210 1,120 2,360 1,860 1,670 1,030 589 459 521 589 764 994
16 1,140 1,130 2,340 1,840 1,720 990 553 469 538 574 797 980
17 1,090 1,190 2,280 1,840 1,700 934 531 483 553 612 807 956
18 1,070 1,300 2,210 1,790 1,710 983 490 502 524 638 820 944
19 1,050 1,350 2,150 1,850 1,710 990 502 478 528 640 848 919
20 1,040 1,480 2,100 1,950 1,680 1,050 507 489 513 636 857 899
21 1,040 1,660 2,090 2,030 1,650 1,030 511 520 510 624 859 897
22 1,070 1,730 2,090 2,000 1,600 1,020 534 489 499 606 850 912
23 1,130 1,710 2,100 1,960 1,480 1,020 511 484 538 603 839 897
24 1,200 1,670 2,100 1,930 1,430 1,020 522 468 525 646 856 924
25 1,220 1,630 2,080 1,880 1,310 1,030 522 458 496 655 868 942
26 1,170 1,590 2,080 1,900 1,280 1,030 502 419 479 627 856 941
27 1,120 1,570 2,050 1,880 1,200 995 481 421 474 638 862 954
28 1,090 1,570 2,050 1,890 1,200 958 519 434 475 630 957 1,010
29 1,080 1,380 2,140 1,880 1,190 936 577 445 470 625 989 1,060
30 1,110   2,160 1,830 1,170 897 579 426 491 627 1,040 1,110
31 1,150   2,230   1,170   577 429   631   1,250