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USGS Surface-Water Daily Statistics for Iowa

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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 05421740 Wapsipinicon River near Anamosa, IA


Jones County, Iowa
Hydrologic Unit Code 07080103
Latitude  42°05'00.1", Longitude  91°16'02.6" NAD83
Drainage area 1,575  square miles
Gage datum 754.37 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 2001-10-01 -> 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
1 964 620 1,490 2,420 3,040 4,090 3,100 1,010 1,100 1,100 1,120 809
2 925 607 1,420 2,380 2,800 4,020 2,840 884 1,210 1,190 1,100 819
3 897 624 1,350 2,390 2,670 3,610 2,720 800 1,530 1,570 1,000 798
4 886 682 1,300 2,430 2,600 3,110 2,670 761 1,550 1,730 1,000 757
5 864 662 1,350 2,490 2,550 2,800 2,570 743 1,650 1,510 1,020 739
6 855 629 1,400 2,570 2,490 2,660 2,390 720 1,710 1,380 978 740
7 892 649 1,480 2,530 2,480 2,610 2,160 918 1,760 1,340 944 718
8 896 672 1,630 2,470 2,470 2,590 2,120 1,040 1,680 1,410 923 673
9 829 700 1,810 2,410 2,480 2,680 2,140 1,030 1,490 1,430 893 645
10 777 729 2,300 2,270 2,500 2,980 2,380 1,030 1,380 1,470 864 609
11 732 780 2,610 2,180 2,530 3,250 2,350 983 1,250 1,580 863 582
12 680 783 2,650 2,150 2,480 3,760 2,050 927 1,120 1,510 860 566
13 641 745 2,930 2,160 2,460 4,130 1,810 858 1,020 1,340 862 561
14 625 740 3,330 2,230 2,500 3,830 1,630 810 976 1,330 848 672
15 616 749 3,560 2,220 2,640 3,510 1,460 741 924 1,340 818 773
16 597 787 3,580 2,300 2,640 3,310 1,380 700 972 1,250 789 825
17 609 816 3,690 2,320 2,560 3,170 1,340 657 936 1,160 773 975
18 615 858 3,660 2,560 2,490 3,040 1,290 646 872 1,100 760 990
19 665 933 3,460 2,650 2,380 2,980 1,350 614 854 1,030 739 867
20 731 1,070 3,460 2,660 2,230 2,810 1,260 635 890 975 714 785
21 800 1,190 3,410 2,640 2,170 2,670 1,200 708 958 945 695 753
22 841 1,250 3,220 2,650 2,210 2,880 1,180 782 1,100 922 685 737
23 836 1,300 2,960 2,640 2,250 3,270 1,220 904 1,290 978 683 722
24 832 1,380 2,830 2,620 2,540 3,390 1,440 918 1,390 1,120 679 704
25 849 1,390 2,750 2,720 3,020 3,300 2,320 872 1,650 1,220 686 738
26 800 1,370 2,740 2,940 3,250 3,450 2,880 879 1,920 1,190 698 807
27 746 1,440 2,730 3,140 3,300 3,660 2,720 1,170 2,030 1,140 735 882
28 713 1,480 2,650 3,360 3,370 3,530 2,200 1,450 1,920 1,100 758 939
29 704 1,180 2,570 3,510 3,290 3,320 1,690 1,160 1,640 1,070 769 971
30 676   2,490 3,360 3,310 3,350 1,400 1,070 1,320 1,130 793 1,000
31 652   2,420   3,890   1,200 1,030   1,110   976