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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 -> 2021-09-30)

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 1,270 1,130 1,590 2,230 1,860 1,170 897 546 435 550 666 1,050
2 1,200 1,110 1,650 2,190 1,830 1,160 836 528 432 571 700 1,050
3 1,160 1,090 1,730 2,160 1,760 1,120 816 517 423 587 749 1,020
4 1,120 1,050 1,840 2,150 1,670 1,090 764 508 434 571 744 1,000
5 1,130 1,020 2,000 2,130 1,590 1,050 771 511 420 551 768 981
6 1,130 1,030 2,040 2,130 1,500 1,030 734 508 398 552 814 957
7 1,110 1,040 2,030 2,160 1,450 1,030 704 484 398 570 783 957
8 1,120 1,050 2,020 2,130 1,400 1,030 719 481 415 564 763 957
9 1,110 1,080 2,040 2,110 1,380 1,040 715 492 464 554 736 962
10 1,100 1,170 2,060 2,070 1,440 1,020 700 498 463 561 756 931
11 1,120 1,190 2,090 2,040 1,510 1,020 662 527 450 556 757 924
12 1,140 1,200 2,170 2,050 1,570 974 629 479 434 545 740 918
13 1,230 1,180 2,240 1,990 1,600 966 618 461 421 535 744 959
14 1,270 1,130 2,320 1,900 1,630 1,020 618 470 452 542 742 946
15 1,210 1,120 2,360 1,860 1,670 1,030 593 458 523 585 761 997
16 1,140 1,130 2,340 1,840 1,720 990 556 466 540 571 796 981
17 1,090 1,190 2,280 1,840 1,700 934 536 481 554 608 805 955
18 1,070 1,300 2,210 1,790 1,710 981 493 500 524 633 820 942
19 1,050 1,350 2,150 1,850 1,710 988 505 477 528 636 847 917
20 1,040 1,480 2,100 1,950 1,680 1,040 511 487 512 632 855 897
21 1,040 1,660 2,090 2,030 1,650 1,020 514 518 509 621 855 893
22 1,070 1,730 2,090 2,000 1,600 1,010 536 486 499 606 846 909
23 1,130 1,710 2,100 1,960 1,480 1,020 512 481 536 615 835 894
24 1,200 1,670 2,100 1,930 1,430 1,020 522 465 523 657 852 920
25 1,220 1,630 2,080 1,880 1,310 1,030 522 456 494 664 864 938
26 1,170 1,590 2,080 1,900 1,280 1,030 504 417 478 633 856 937
27 1,120 1,570 2,050 1,880 1,230 1,000 481 420 473 643 861 949
28 1,090 1,570 2,050 1,890 1,220 980 519 433 474 633 956 1,010
29 1,080 1,380 2,140 1,880 1,210 961 576 452 468 627 987 1,060
30 1,110   2,160 1,830 1,190 919 577 428 490 630 1,030 1,100
31 1,150   2,230   1,180   575 430   632   1,240