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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 05446500 ROCK RIVER NEAR JOSLIN, IL


Rock Island County, Illinois
Hydrologic Unit Code 07090005
Latitude  41°33'22", Longitude  90°11'07" NAD83
Drainage area 9,549  square miles
Gage datum 563.74 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 1939-10-01 -> 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 6,360 5,930 9,940 12,200 10,600 8,690 8,340 5,580 5,000 5,140 5,500 5,850
2 6,260 5,880 9,740 12,300 10,600 8,650 8,220 5,420 4,860 5,080 5,560 5,840
3 6,110 5,890 9,770 12,400 10,500 8,630 8,040 5,300 4,750 5,050 5,700 5,920
4 6,020 5,900 9,890 12,300 10,400 8,710 8,090 5,240 4,700 5,060 5,730 5,980
5 6,010 5,940 10,100 12,400 10,100 8,720 7,990 5,130 4,650 5,100 5,710 5,960
6 6,120 5,810 10,400 12,300 9,910 8,740 7,810 5,130 4,560 5,110 5,660 5,890
7 6,110 5,740 10,400 12,200 9,660 8,570 7,630 5,240 4,430 5,130 5,690 5,810
8 6,080 5,800 10,400 12,000 9,580 8,340 7,450 5,290 4,390 5,170 5,670 5,780
9 6,040 5,950 10,300 11,800 9,580 8,350 7,470 5,410 4,450 5,130 5,590 5,690
10 6,000 6,150 10,400 11,700 9,620 8,480 7,440 5,280 4,530 5,150 5,550 5,670
11 5,920 6,290 10,700 11,600 9,660 8,480 7,270 5,160 4,530 5,190 5,630 5,590
12 5,890 6,370 11,100 11,500 9,640 8,470 7,000 5,020 4,490 5,280 5,650 5,460
13 5,860 6,470 11,300 11,400 9,680 8,440 6,790 4,970 4,600 5,280 5,640 5,390
14 5,760 6,560 11,600 11,200 9,850 8,780 6,660 4,940 4,870 5,230 5,660 5,400
15 5,670 6,660 11,700 11,100 9,920 9,020 6,530 4,990 5,070 5,170 5,670 5,460
16 5,660 6,680 12,000 11,100 9,810 9,210 6,510 5,030 5,100 5,120 5,660 5,580
17 5,740 6,530 12,200 11,200 9,740 9,200 6,360 4,910 5,030 5,090 5,580 5,660
18 5,720 6,490 12,100 11,200 9,740 9,070 6,300 4,930 4,960 5,070 5,660 5,620
19 5,620 6,650 12,100 11,200 9,620 8,870 6,480 4,980 4,960 5,120 5,630 5,550
20 5,620 7,150 12,300 11,200 9,530 8,930 6,640 4,900 4,970 5,060 5,690 5,500
21 5,720 7,730 12,600 11,200 9,380 8,800 6,830 5,000 4,980 5,030 5,690 5,530
22 5,790 8,530 12,800 11,200 9,190 8,730 6,780 4,910 5,110 4,990 5,680 5,490
23 6,010 9,000 12,600 11,300 9,060 8,790 6,710 4,870 5,170 5,020 5,660 5,450
24 6,300 9,070 12,400 11,200 9,050 8,830 6,690 4,880 5,240 5,180 5,610 5,400
25 6,490 9,250 12,400 11,200 8,980 8,720 6,590 4,780 5,230 5,260 5,550 5,470
26 6,460 9,540 12,300 11,000 8,890 8,610 6,420 4,850 5,230 5,300 5,480 5,580
27 6,330 9,680 12,100 10,900 8,790 8,430 6,240 5,020 5,240 5,350 5,570 5,700
28 6,330 9,780 12,100 10,900 8,620 8,320 6,120 5,250 5,250 5,370 5,660 5,840
29 6,220 9,080 12,000 10,700 8,660 8,300 6,000 5,280 5,200 5,400 5,700 6,090
30 6,090   12,000 10,700 8,790 8,390 5,870 5,270 5,200 5,390 5,730 6,240
31 6,030   12,100   8,780   5,710 5,130   5,420   6,330