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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 05542500 ILLINOIS RIVER AT MORRIS, IL


Grundy County, Illinois
Hydrologic Unit Code 07120005
Latitude  41°21'16.5", Longitude  88°25'42.6" NAD83
Drainage area 7,483.00  square miles
Gage datum 478.17 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 2015-10-01 -> 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 10,800 9,600 18,100 23,100 25,900 12,300 15,500 5,780 6,330 6,650 11,700 8,720
2 10,900 9,020 17,000 22,600 28,500 11,800 14,500 5,180 5,370 6,200 10,500 9,590
3 10,400 9,010 15,500 20,400 25,600 10,800 14,000 5,010 4,890 6,370 9,640 9,680
4 10,400 9,050 14,600 19,000 22,800 9,860 12,700 5,410 5,150 5,920 9,200 9,170
5 9,620 8,940 15,900 17,800 20,600 10,400 11,800 5,230 4,750 5,390 9,000 8,590
6 8,920 9,890 15,400 18,300 18,800 10,200 11,100 4,880 5,060 6,270 9,200 7,990
7 8,090 10,500 14,600 18,600 17,600 9,290 10,300 5,700 5,040 6,750 8,350 7,670
8 7,630 10,700 13,800 17,400 17,100 8,880 8,900 5,730 5,350 6,760 7,330 7,230
9 7,390 10,100 14,200 16,300 17,900 9,190 7,750 5,570 5,640 6,150 6,990 6,900
10 8,130 9,880 15,500 14,800 20,300 9,420 7,680 5,610 5,830 5,740 6,840 6,590
11 10,100 9,390 15,200 13,500 19,100 9,430 7,650 5,480 6,520 6,550 6,120 6,900
12 11,900 9,200 13,500 12,900 17,200 9,160 8,650 5,530 6,080 6,500 6,110 7,100
13 12,000 9,810 12,400 12,300 16,200 8,970 9,250 6,380 6,160 6,850 5,910 7,350
14 11,700 8,780 13,200 11,800 16,200 8,560 9,610 5,180 5,760 7,220 5,760 6,990
15 10,800 8,930 13,600 13,200 18,300 9,600 9,760 5,600 5,630 9,110 5,600 7,350
16 10,100 8,580 12,700 14,400 18,000 9,900 10,200 6,050 5,570 8,660 5,740 7,330
17 10,300 9,900 11,900 14,300 16,900 9,970 10,700 6,880 5,200 7,900 5,470 7,350
18 10,200 10,900 12,800 13,200 21,500 9,570 10,100 6,620 5,310 6,620 6,190 7,020
19 9,750 10,400 12,400 12,600 22,600 9,520 9,870 6,850 5,000 5,730 7,370 6,700
20 10,300 12,600 13,600 12,000 17,800 9,810 10,300 7,050 4,180 5,310 7,320 6,220
21 10,600 16,500 13,400 11,500 15,600 11,100 9,530 7,590 4,610 5,290 7,410 5,890
22 10,200 18,100 12,500 10,400 16,300 12,500 10,800 6,970 4,630 5,260 7,630 5,610
23 10,000 17,900 12,200 10,000 16,400 12,700 11,700 6,630 4,730 5,640 7,280 5,910
24 10,100 18,600 12,400 9,560 16,400 11,600 11,000 6,050 4,950 6,710 7,050 5,480
25 11,200 17,600 13,000 9,390 14,600 12,000 9,960 6,460 4,710 10,300 6,750 5,670
26 12,700 16,800 14,100 10,300 13,500 12,300 9,060 6,470 4,430 11,800 7,060 6,120
27 13,000 16,400 14,000 10,300 13,300 15,000 8,070 6,800 4,220 14,000 8,140 7,490
28 11,900 17,100 13,800 11,300 14,500 15,900 8,360 8,150 7,600 14,000 8,040 7,930
29 11,000 9,910 13,500 15,100 14,500 15,700 7,240 7,860 8,150 12,400 8,290 8,490
30 10,200   15,700 22,600 14,300 15,700 6,900 7,260 7,220 12,000 8,420 9,850
31 9,450   20,400   13,400   6,160 6,780   13,000   9,730