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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 05550001 FOX RIVER (TAILWATER) AT ALGONQUIN, IL


Mchenry County, Illinois
Hydrologic Unit Code 07120006
Latitude  42°09'43", Longitude  88°17'38" NAD83
Drainage area 1,429  square miles
Gage datum 719.22 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 2008-10-01 -> 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 1,260 1,170 1,650 2,140 2,170 1,660 1,730 1,110 612 812 1,200 1,330
2 1,220 1,140 1,660 2,110 2,230 1,560 1,660 1,010 643 879 1,230 1,340
3 1,170 1,140 1,660 2,130 2,300 1,400 1,570 980 701 930 1,240 1,330
4 1,130 1,160 1,640 2,190 2,300 1,290 1,490 980 713 947 1,240 1,300
5 1,070 1,170 1,700 2,190 2,240 1,320 1,380 921 729 944 1,220 1,280
6 1,020 1,210 1,700 2,220 2,150 1,320 1,280 904 760 955 1,220 1,260
7 1,020 1,260 1,670 2,240 2,120 1,270 1,200 874 769 994 1,270 1,210
8 1,000 1,240 1,670 2,220 2,070 1,220 1,200 852 831 1,000 1,300 1,150
9 1,010 1,200 1,700 2,220 2,040 1,230 1,140 837 806 1,020 1,320 1,120
10 1,020 1,200 1,790 2,210 2,030 1,190 1,110 891 807 1,040 1,280 1,080
11 1,040 1,180 1,890 2,270 2,030 1,120 1,090 884 875 1,090 1,250 1,090
12 1,030 1,160 1,980 2,250 2,010 1,110 1,160 854 991 1,110 1,230 1,070
13 1,020 1,130 2,100 2,250 2,080 1,110 1,210 821 1,080 1,100 1,210 1,090
14 978 1,110 2,210 2,230 2,110 1,090 1,290 820 1,080 1,120 1,240 1,130
15 960 1,120 2,240 2,170 2,190 1,110 1,310 815 1,040 1,180 1,250 1,180
16 964 1,140 2,240 2,100 2,120 1,110 1,330 804 1,030 1,170 1,240 1,170
17 967 1,160 2,260 2,120 2,090 1,100 1,320 771 1,030 1,180 1,210 1,160
18 962 1,170 2,280 2,230 2,010 1,110 1,330 721 1,080 1,140 1,170 1,140
19 917 1,190 2,280 2,200 1,940 1,180 1,370 655 1,100 1,080 1,190 1,110
20 922 1,270 2,280 2,160 1,860 1,210 1,440 632 1,100 1,030 1,210 1,080
21 946 1,330 2,240 2,130 1,800 1,260 1,490 650 1,100 964 1,230 1,050
22 975 1,380 2,210 2,150 1,750 1,360 1,580 652 1,080 951 1,210 1,050
23 1,010 1,440 2,200 2,150 1,760 1,600 1,680 615 1,040 966 1,180 1,020
24 1,060 1,500 2,190 2,130 1,810 1,660 1,670 601 990 982 1,170 1,020
25 1,100 1,490 2,210 2,090 1,810 1,680 1,590 599 956 1,030 1,180 1,040
26 1,130 1,500 2,200 2,050 1,850 1,840 1,490 587 932 1,070 1,210 1,080
27 1,130 1,550 2,150 1,950 1,850 1,910 1,420 588 900 1,110 1,230 1,130
28 1,090 1,590 2,180 1,890 1,800 1,820 1,400 609 898 1,170 1,240 1,180
29 1,080 1,240 2,180 1,970 1,770 1,780 1,400 670 912 1,210 1,270 1,210
30 1,130   2,200 2,090 1,740 1,720 1,320 684 853 1,210 1,300 1,220
31 1,190   2,170   1,720   1,260 658   1,200   1,260