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USGS Daily Statistics for the Nation

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 04116000 GRAND RIVER AT IONIA, MI


Ionia County, Michigan
Hydrologic Unit Code 04050006
Latitude  42°58'19", Longitude  85°04'09" NAD27
Drainage area 2,840  square miles
Gage datum 614.63 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 1930-10-01 -> 2024-09-30)

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 2,510 2,390 3,470 4,600 3,570 2,270 1,760 922 838 1,180 1,370 2,080
2 2,490 2,380 3,470 4,620 3,570 2,220 1,650 878 855 1,360 1,470 2,070
3 2,430 2,310 3,510 4,590 3,500 2,180 1,550 855 817 1,420 1,530 2,080
4 2,350 2,260 3,710 4,540 3,380 2,100 1,460 860 816 1,460 1,530 2,060
5 2,320 2,230 3,930 4,530 3,210 2,030 1,420 867 794 1,410 1,540 2,020
6 2,340 2,210 4,140 4,570 3,050 1,950 1,380 852 789 1,350 1,610 2,000
7 2,260 2,150 4,190 4,720 2,940 1,890 1,310 834 804 1,340 1,630 1,970
8 2,200 2,140 4,190 4,700 2,860 1,870 1,290 828 815 1,280 1,580 1,970
9 2,160 2,160 4,190 4,610 2,760 1,860 1,320 841 844 1,240 1,560 1,950
10 2,160 2,250 4,250 4,520 2,800 1,810 1,290 839 880 1,200 1,560 1,940
11 2,170 2,300 4,390 4,410 2,920 1,800 1,240 845 892 1,190 1,570 1,910
12 2,250 2,330 4,540 4,390 2,980 1,790 1,220 844 917 1,170 1,570 1,930
13 2,310 2,340 4,710 4,330 3,010 1,810 1,200 843 927 1,130 1,550 1,960
14 2,320 2,290 4,860 4,210 3,020 1,810 1,230 815 932 1,130 1,570 1,960
15 2,290 2,250 5,020 4,100 3,000 1,830 1,190 820 972 1,150 1,590 1,990
16 2,220 2,260 5,030 4,070 3,060 1,800 1,130 836 996 1,190 1,620 2,010
17 2,170 2,320 4,910 3,980 3,070 1,730 1,060 861 982 1,200 1,630 1,960
18 2,220 2,480 4,720 3,910 3,060 1,700 1,010 870 965 1,220 1,630 1,930
19 2,200 2,630 4,530 3,900 3,180 1,740 985 844 945 1,210 1,650 1,880
20 2,130 2,740 4,480 3,930 3,220 1,800 961 849 918 1,240 1,680 1,840
21 2,110 3,050 4,410 3,990 3,120 1,840 955 901 913 1,220 1,700 1,850
22 2,130 3,350 4,360 3,940 3,060 1,820 952 904 935 1,200 1,690 1,850
23 2,190 3,490 4,360 3,870 2,960 1,780 962 920 996 1,230 1,650 1,850
24 2,280 3,480 4,350 3,800 2,830 1,800 913 907 1,030 1,290 1,670 1,850
25 2,340 3,500 4,350 3,750 2,720 1,820 926 910 1,000 1,360 1,710 1,920
26 2,330 3,540 4,340 3,760 2,600 1,860 942 871 991 1,370 1,690 1,940
27 2,280 3,490 4,300 3,720 2,510 1,890 921 855 1,010 1,390 1,720 1,970
28 2,260 3,470 4,300 3,670 2,430 1,870 884 863 1,020 1,400 1,850 2,110
29 2,240 2,640 4,360 3,690 2,400 1,840 917 866 1,020 1,350 1,950 2,180
30 2,280   4,430 3,590 2,330 1,800 945 871 1,030 1,330 2,030 2,270
31 2,360   4,490   2,290   942 843   1,360   2,360