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USGS Daily Statistics for Illinois

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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 05442300 ROCK RIVER AT DIXON, IL


Lee County, Illinois
Hydrologic Unit Code 07090005
Latitude  41°50'39", Longitude  89°29'09" NAD83
Drainage area 8,615  square miles
Gage datum 628.51 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 2009-10-01 -> 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 7,570 7,370 9,550 12,500 12,300 10,400 12,000 8,280 5,540 6,260 7,120 7,330
2 7,530 7,180 9,550 12,300 12,500 10,000 11,500 7,940 5,710 6,470 7,000 7,560
3 7,430 7,130 9,370 12,500 12,300 9,590 11,000 7,540 6,250 7,120 6,800 7,840
4 7,360 7,040 9,110 12,700 12,100 9,110 10,500 7,330 6,590 7,400 6,850 7,820
5 7,040 6,960 9,040 12,800 11,800 9,020 10,100 7,200 6,490 7,600 6,870 7,630
6 6,740 6,790 9,140 12,900 11,400 8,950 9,790 6,880 6,410 7,830 7,010 7,350
7 6,650 6,670 9,210 12,600 11,100 8,740 9,660 6,710 6,240 8,190 7,030 7,100
8 6,730 6,520 9,140 12,300 10,900 8,510 9,460 6,960 6,150 8,240 6,980 6,770
9 6,850 6,550 9,260 12,100 10,800 8,540 9,150 7,030 6,110 8,010 7,070 6,530
10 6,840 6,750 10,400 12,000 10,800 8,950 8,750 6,880 6,170 7,600 7,480 6,380
11 6,880 6,820 12,400 12,000 10,800 8,970 8,550 6,650 6,240 7,620 7,420 6,320
12 7,010 6,800 13,000 12,000 10,800 8,890 8,310 6,620 6,820 7,600 7,300 6,340
13 6,960 6,740 13,600 11,800 11,100 8,790 8,180 6,390 7,620 7,540 7,120 6,210
14 6,690 6,570 13,700 11,600 11,500 8,730 8,410 6,420 7,920 7,610 6,840 6,570
15 6,330 6,500 13,600 11,600 11,800 8,940 8,770 6,370 7,820 7,750 6,720 7,100
16 6,360 6,460 13,500 12,000 11,900 9,540 8,900 6,240 7,410 7,940 6,590 7,550
17 6,820 6,670 13,300 12,300 11,600 9,400 8,950 6,020 6,860 7,790 6,570 7,540
18 6,920 6,870 12,900 12,900 11,400 9,120 8,670 6,000 6,600 7,580 6,560 7,300
19 6,540 7,090 12,600 13,100 11,300 9,730 8,260 5,910 6,470 7,350 6,680 6,990
20 6,470 8,120 12,500 13,100 10,900 10,100 8,270 5,870 6,490 7,180 6,690 6,960
21 6,280 9,520 12,700 12,900 10,500 10,200 8,460 5,930 6,450 7,020 6,660 6,880
22 6,250 9,840 12,400 12,300 10,300 10,600 9,200 5,910 6,550 6,830 6,810 6,840
23 6,490 9,380 12,100 12,100 10,400 11,000 9,490 5,730 6,870 6,790 6,750 6,590
24 6,880 9,870 11,900 11,800 10,300 11,100 10,200 5,670 6,720 6,830 6,570 6,830
25 7,050 10,000 12,000 11,500 10,400 10,900 10,900 5,570 6,430 6,890 6,510 6,780
26 6,840 9,500 12,100 11,200 10,200 10,900 10,100 5,500 6,260 7,040 6,590 6,770
27 6,770 9,290 12,200 11,000 10,300 11,400 9,440 5,570 6,400 7,340 6,950 6,810
28 6,830 9,260 12,300 10,900 10,300 11,600 9,350 5,430 6,310 7,590 7,180 7,070
29 6,930 6,980 12,400 11,000 10,400 11,600 9,310 5,560 6,210 7,480 7,380 7,270
30 7,200   12,300 11,700 10,800 11,900 9,130 5,680 6,220 7,330 7,470 7,430
31 7,490   12,300   10,700   8,720 5,530   7,340   7,470