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USGS Surface-Water 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 05458300 Cedar River at Waverly, IA


Bremer County, Iowa
Hydrologic Unit Code 07080201
Latitude  42°44'14", Longitude  92°28'12.33" NAD83
Drainage area 1,547  square miles
Gage datum 900.45 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 1999-10-01 -> 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
1 780 478 864 2,710 1,990 2,770 2,140 992 1,080 1,050 1,050 723
2 744 487 892 2,910 2,110 2,500 2,070 868 1,070 1,090 1,010 740
3 746 507 883 2,840 2,230 2,300 1,960 803 1,050 1,240 880 729
4 752 556 879 2,660 2,690 2,170 1,810 769 912 1,450 844 696
5 693 561 876 2,510 3,140 2,120 1,680 822 1,080 1,420 840 672
6 658 531 861 2,310 3,080 2,160 1,550 853 1,230 1,360 832 639
7 633 510 961 2,310 2,880 2,100 1,720 865 1,180 1,420 830 610
8 606 524 1,150 2,320 2,680 2,090 2,120 793 1,120 1,450 824 617
9 595 557 1,390 2,700 2,410 2,240 1,800 793 1,050 1,550 782 600
10 535 536 1,720 2,610 2,290 4,560 1,610 807 1,170 1,670 745 593
11 518 577 2,000 2,080 2,250 4,210 1,500 756 1,190 1,610 745 578
12 540 628 1,850 2,280 2,240 3,540 1,490 714 1,080 1,560 743 557
13 526 670 1,990 2,820 2,490 3,250 1,530 719 953 1,410 729 566
14 534 776 2,430 3,100 2,500 3,450 1,420 681 1,010 1,230 718 619
15 526 745 2,590 2,730 2,400 3,260 1,310 647 1,110 1,100 745 639
16 495 748 2,690 2,640 2,410 3,000 1,250 623 962 1,050 802 732
17 483 816 2,720 2,300 2,360 2,830 1,320 599 1,320 1,010 792 796
18 482 784 2,570 2,100 2,130 2,610 1,500 608 1,890 943 753 727
19 474 769 2,400 2,100 2,250 2,580 1,610 642 1,680 917 729 663
20 505 811 2,460 2,040 2,480 2,800 1,550 697 1,500 901 715 623
21 527 970 2,540 2,150 2,910 2,880 1,390 800 1,640 890 709 612
22 576 1,080 2,700 2,270 3,320 2,850 1,440 829 2,110 913 714 589
23 619 1,140 2,730 2,200 3,010 3,000 1,600 871 2,770 980 773 569
24 671 1,040 2,670 2,200 3,080 3,350 1,480 896 2,530 1,030 766 565
25 680 905 2,560 2,440 2,750 3,480 1,360 1,050 2,370 1,000 720 568
26 614 816 2,360 2,380 2,500 3,140 1,250 1,260 2,050 969 704 574
27 562 755 2,010 2,290 2,410 2,710 1,140 1,150 1,910 989 694 610
28 533 780 1,990 2,280 2,530 2,500 1,070 1,000 1,630 1,130 697 734
29 510 935 2,000 2,080 2,830 2,480 1,050 1,480 1,390 1,120 704 816
30 493   2,100 1,960 3,110 2,240 1,120 1,810 1,170 1,020 720 798
31 483   2,430   3,110   1,140 1,350   1,030   800