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USGS Surface-Water 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 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 9,800 12,500 12,500 10,400 11,900 8,020 5,540 6,260 7,120 7,330
2 7,530 7,180 9,840 12,200 12,600 9,970 11,400 7,680 5,710 6,470 7,000 7,560
3 7,430 7,130 9,700 11,900 12,400 9,480 10,800 7,310 6,250 7,120 6,800 7,840
4 7,360 7,040 9,430 11,800 12,200 8,950 10,200 7,100 6,590 7,400 6,850 7,820
5 7,040 6,960 9,300 11,900 11,900 8,750 9,790 6,980 6,490 7,600 6,870 7,630
6 6,740 6,790 9,320 12,100 11,500 8,620 9,480 6,670 6,410 7,830 7,010 7,350
7 6,650 6,670 9,340 12,000 11,200 8,370 9,320 6,490 6,240 8,190 7,030 7,100
8 6,730 6,520 9,260 11,700 10,800 8,150 9,100 6,760 6,150 8,240 6,980 6,770
9 6,850 6,550 9,410 11,500 10,700 8,190 8,750 6,840 6,110 8,010 7,070 6,530
10 6,840 6,750 10,600 11,400 10,800 8,640 8,310 6,700 6,170 7,600 7,480 6,380
11 6,880 6,820 12,700 11,500 10,800 8,660 8,100 6,480 6,240 7,620 7,420 6,320
12 7,010 6,800 13,400 11,500 10,900 8,580 7,880 6,460 6,820 7,600 7,300 6,340
13 6,960 6,740 14,000 11,400 11,300 8,500 7,780 6,240 7,620 7,540 7,120 6,210
14 6,690 6,570 14,200 11,200 11,700 8,440 7,790 6,280 7,920 7,610 6,840 6,570
15 6,330 6,500 14,000 11,300 12,000 8,710 7,660 6,230 7,820 7,750 6,720 7,100
16 6,360 6,460 14,000 11,800 12,100 9,370 7,460 6,110 7,410 7,940 6,590 7,550
17 6,820 6,670 13,700 12,100 11,900 9,220 7,450 5,870 6,860 7,790 6,570 7,540
18 6,920 6,870 13,300 12,800 11,700 8,950 7,280 5,880 6,600 7,580 6,560 7,300
19 6,540 7,090 13,000 13,000 11,500 9,630 7,070 5,810 6,470 7,350 6,680 6,990
20 6,470 8,120 12,900 13,000 11,100 10,100 7,310 5,810 6,490 7,180 6,690 6,960
21 6,280 9,780 13,100 12,900 10,800 10,100 7,640 5,860 6,450 7,020 6,660 6,880
22 6,250 10,100 12,800 12,300 10,600 10,600 8,520 5,870 6,550 6,830 6,810 6,840
23 6,490 9,670 12,500 12,000 10,600 10,700 8,890 5,680 6,870 6,790 6,750 6,590
24 6,880 10,200 12,300 11,800 10,500 10,600 9,700 5,630 6,720 6,830 6,570 6,830
25 7,050 10,400 12,400 11,500 10,600 10,400 10,400 5,560 6,430 6,890 6,510 6,780
26 6,840 9,780 12,300 11,300 10,300 10,400 9,660 5,500 6,260 7,040 6,590 6,770
27 6,770 9,550 12,100 11,000 10,300 11,100 9,020 5,560 6,400 7,340 6,950 6,810
28 6,830 9,540 12,200 10,900 10,300 11,300 9,010 5,430 6,310 7,590 7,180 7,070
29 6,930 7,420 12,400 11,000 10,400 11,400 8,970 5,560 6,210 7,480 7,380 7,270
30 7,200   12,400 11,700 10,800 11,600 8,840 5,680 6,220 7,330 7,470 7,430
31 7,490   12,400   10,700   8,440 5,530   7,340   7,470