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USGS Daily Statistics for Iowa

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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.

USGS 05422000 Wapsipinicon River near De Witt, IA


Clinton County, Iowa
Hydrologic Unit Code 07080103
Latitude  41°46'01.1", Longitude  90°32'05.48" NAD83
Drainage area 2,336  square miles
Gage datum 598.79 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 1934-10-01 -> 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 1,050 893 2,080 3,460 2,980 3,020 3,090 1,550 1,520 1,330 1,170 1,080
2 1,020 871 2,100 3,490 2,920 3,030 3,020 1,440 1,440 1,260 1,220 1,100
3 989 836 2,160 3,540 2,840 3,030 2,840 1,310 1,360 1,180 1,270 1,140
4 955 845 2,240 3,560 2,810 3,060 2,740 1,230 1,360 1,140 1,290 1,110
5 963 882 2,480 3,510 2,840 3,080 2,590 1,190 1,370 1,130 1,300 1,070
6 1,040 946 2,490 3,440 2,800 3,070 2,500 1,180 1,320 1,160 1,300 1,070
7 978 985 2,440 3,330 2,740 2,950 2,510 1,180 1,210 1,240 1,290 1,060
8 968 987 2,440 3,250 2,750 2,920 2,510 1,250 1,240 1,200 1,280 1,030
9 991 950 2,580 3,200 2,760 2,910 2,580 1,320 1,300 1,170 1,230 972
10 973 987 2,670 3,160 2,890 2,780 2,450 1,260 1,230 1,170 1,200 930
11 931 985 2,900 3,120 3,020 2,680 2,410 1,160 1,170 1,210 1,170 896
12 911 989 3,070 3,050 2,960 2,720 2,250 1,190 1,090 1,170 1,110 890
13 918 1,010 3,210 2,920 2,910 2,790 2,180 1,180 1,100 1,130 1,120 891
14 908 1,030 3,260 2,810 2,950 2,920 2,170 1,210 1,180 1,140 1,150 917
15 906 1,020 3,230 2,790 2,860 3,000 2,090 1,210 1,160 1,140 1,110 978
16 898 992 3,260 2,840 2,760 3,200 1,950 1,170 1,060 1,100 1,130 1,040
17 891 1,010 3,210 2,930 2,830 3,520 1,780 1,180 993 1,090 1,140 1,040
18 837 1,080 3,240 3,050 2,770 3,350 1,710 1,150 1,030 1,150 1,140 985
19 811 1,240 3,420 3,130 2,710 3,200 1,740 1,110 1,050 1,200 1,140 944
20 828 1,440 3,680 3,100 2,540 3,110 1,760 1,150 1,030 1,140 1,120 950
21 853 1,700 3,640 3,180 2,480 3,000 1,770 1,130 1,040 1,090 1,130 1,000
22 870 1,840 3,640 3,290 2,400 2,930 1,770 1,090 1,050 1,050 1,140 1,010
23 899 1,930 3,770 3,230 2,540 2,990 1,780 1,060 1,040 1,080 1,120 975
24 935 2,020 3,800 3,190 2,600 2,980 1,690 1,090 1,100 1,110 1,080 943
25 946 2,160 3,760 3,150 2,600 2,930 1,710 1,130 1,130 1,110 1,060 943
26 937 2,220 3,650 3,040 2,530 3,000 1,660 1,170 1,180 1,120 1,070 932
27 919 2,150 3,530 2,940 2,550 3,150 1,580 1,220 1,230 1,130 1,110 968
28 899 2,120 3,420 2,940 2,820 3,130 1,560 1,300 1,190 1,100 1,100 1,030
29 876 1,890 3,380 2,940 3,100 3,050 1,650 1,390 1,230 1,080 1,070 1,050
30 878   3,460 2,950 3,140 3,130 1,770 1,370 1,340 1,070 1,070 1,090
31 910   3,480   3,050   1,680 1,480   1,100   1,090