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USGS Daily Statistics for Iowa
Boating safety tips are available from the U.S. Coast Guard.
NOTE: Station Numbers for Iowa precipitation gages have changed (see list).
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.
Marion County, Iowa Hydrologic Unit Code 07100009
Latitude 41°21'51", Longitude 92°58'31.7"
NAD83
Drainage area 12,330 square miles Gage datum 599.87 feet above NAVD88 |
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00060, Discharge, cubic feet per second, | |||||||||||||
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Day of month |
Mean of daily mean values for each day for water year of record in, ft3/s
(Calculation Period 1992-10-01 -> 2025-09-30) Calculation period restricted by USGS staff due to special conditions at/near site |
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
1 | 4,400 | 2,380 | 6,110 | 11,400 | 12,600 | 16,200 | 18,000 | 11,300 | 6,260 | 4,840 | 4,720 | 4,460 | |
2 | 4,220 | 2,540 | 6,320 | 11,800 | 12,300 | 16,000 | 18,000 | 11,100 | 6,020 | 4,930 | 4,740 | 4,430 | |
3 | 4,020 | 2,710 | 5,960 | 11,700 | 12,400 | 16,400 | 17,800 | 10,900 | 5,990 | 5,100 | 4,860 | 4,600 | |
4 | 4,030 | 2,900 | 6,010 | 11,500 | 12,600 | 16,600 | 17,600 | 10,500 | 5,930 | 5,150 | 4,880 | 4,940 | |
5 | 3,810 | 3,010 | 6,470 | 11,200 | 12,800 | 16,200 | 18,000 | 10,100 | 5,830 | 4,900 | 5,040 | 4,920 | |
6 | 3,670 | 2,950 | 6,770 | 11,000 | 13,100 | 16,300 | 17,600 | 10,000 | 5,590 | 4,790 | 5,120 | 4,840 | |
7 | 3,770 | 2,820 | 6,890 | 11,100 | 13,100 | 16,600 | 17,200 | 10,100 | 5,090 | 5,110 | 5,110 | 4,630 | |
8 | 3,760 | 2,730 | 7,180 | 11,200 | 13,200 | 16,700 | 17,100 | 10,100 | 4,690 | 4,980 | 4,960 | 4,520 | |
9 | 3,610 | 2,670 | 7,550 | 11,400 | 13,500 | 16,800 | 17,000 | 9,910 | 4,400 | 4,850 | 4,760 | 4,680 | |
10 | 3,480 | 2,700 | 7,830 | 11,400 | 13,900 | 16,600 | 17,400 | 9,520 | 4,270 | 4,850 | 4,460 | 4,650 | |
11 | 3,260 | 2,950 | 8,450 | 11,500 | 14,000 | 16,900 | 17,900 | 9,200 | 4,330 | 4,880 | 4,300 | 4,440 | |
12 | 3,130 | 3,240 | 8,810 | 12,300 | 14,300 | 17,600 | 18,300 | 8,840 | 4,700 | 5,130 | 4,310 | 4,540 | |
13 | 2,960 | 3,250 | 9,290 | 13,000 | 14,100 | 18,000 | 18,100 | 8,460 | 5,360 | 5,230 | 4,310 | 4,590 | |
14 | 2,830 | 3,390 | 9,600 | 12,900 | 14,600 | 17,900 | 17,800 | 8,300 | 5,590 | 5,050 | 4,300 | 4,450 | |
15 | 2,770 | 3,360 | 10,100 | 12,900 | 15,300 | 17,400 | 17,600 | 8,120 | 5,620 | 4,880 | 4,270 | 4,400 | |
16 | 2,740 | 3,230 | 10,500 | 12,900 | 15,700 | 17,800 | 17,200 | 7,750 | 5,420 | 5,120 | 4,140 | 4,310 | |
17 | 2,810 | 3,440 | 11,000 | 12,700 | 15,700 | 18,300 | 16,600 | 7,480 | 5,350 | 5,120 | 4,090 | 4,580 | |
18 | 2,880 | 4,060 | 11,200 | 11,800 | 15,800 | 18,100 | 16,200 | 7,090 | 5,370 | 4,890 | 4,020 | 4,730 | |
19 | 2,800 | 4,740 | 11,200 | 11,400 | 15,900 | 17,600 | 15,900 | 6,820 | 5,410 | 4,950 | 3,970 | 4,670 | |
20 | 2,600 | 5,220 | 11,000 | 11,300 | 15,900 | 17,200 | 15,900 | 6,730 | 5,410 | 4,970 | 4,070 | 4,310 | |
21 | 2,490 | 5,880 | 10,600 | 11,300 | 15,800 | 17,000 | 16,000 | 6,840 | 5,330 | 4,870 | 4,060 | 4,060 | |
22 | 2,530 | 6,250 | 10,100 | 11,700 | 15,700 | 17,200 | 15,900 | 6,870 | 5,390 | 4,890 | 4,110 | 4,160 | |
23 | 2,710 | 6,290 | 9,820 | 11,800 | 15,500 | 17,500 | 15,600 | 6,930 | 5,450 | 5,140 | 4,240 | 4,220 | |
24 | 2,920 | 6,220 | 9,980 | 12,300 | 15,200 | 17,400 | 15,300 | 6,680 | 5,170 | 5,540 | 4,380 | 3,850 | |
25 | 2,980 | 6,230 | 10,200 | 12,700 | 15,000 | 17,400 | 15,200 | 6,550 | 5,150 | 5,720 | 4,480 | 3,720 | |
26 | 2,880 | 6,230 | 10,500 | 12,700 | 15,000 | 17,700 | 15,000 | 6,410 | 5,190 | 5,530 | 4,430 | 3,850 | |
27 | 2,680 | 6,150 | 10,800 | 13,000 | 15,300 | 18,100 | 14,500 | 6,580 | 5,280 | 5,250 | 4,270 | 3,760 | |
28 | 2,480 | 6,020 | 11,100 | 13,500 | 15,100 | 18,600 | 13,700 | 6,710 | 5,400 | 5,180 | 4,170 | 3,820 | |
29 | 2,390 | 7,420 | 11,300 | 14,000 | 15,600 | 18,400 | 12,800 | 6,700 | 5,320 | 4,970 | 4,300 | 4,190 | |
30 | 2,470 | 11,200 | 13,700 | 15,600 | 18,300 | 12,300 | 6,700 | 4,890 | 4,710 | 4,470 | 4,440 | ||
31 | 2,350 | 11,100 | 15,800 | 11,700 | 6,500 | 4,710 | 4,420 |