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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 05458500 Cedar River at Janesville, IA


Bremer County, Iowa
Hydrologic Unit Code 07080201
Latitude  42°38'54", Longitude  92°27'54" NAD27
Drainage area 1,661  square miles
Gage datum 868.26 feet above NGVD29
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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 1904-10-01 -> 2020-09-30)

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
1 512 387 1,120 2,840 1,580 1,770 1,820 876 743 964 720 558
2 487 384 1,040 2,920 1,530 1,800 1,710 837 883 947 730 559
3 485 382 1,130 2,640 1,570 1,740 1,450 860 868 870 715 551
4 471 394 1,200 2,330 1,660 1,630 1,310 840 740 859 720 545
5 440 391 1,310 2,250 1,680 1,510 1,220 892 680 843 718 533
6 464 403 1,420 2,340 1,620 1,430 1,150 914 704 832 697 538
7 452 400 1,530 2,360 1,610 1,380 1,160 805 689 851 670 526
8 443 423 1,590 2,320 1,640 1,390 1,210 720 755 830 662 535
9 439 463 1,580 2,280 1,610 1,540 1,280 698 769 834 647 521
10 424 485 1,480 2,240 1,510 2,020 1,200 753 705 889 638 505
11 381 527 1,490 1,990 1,530 1,990 1,170 834 718 881 642 482
12 383 515 1,540 1,960 1,490 1,810 1,180 883 684 875 649 483
13 384 507 1,680 2,040 1,460 1,860 1,220 768 622 862 669 500
14 379 558 1,920 2,020 1,480 1,850 1,190 694 612 887 662 520
15 366 553 1,960 1,980 1,480 1,860 1,110 669 680 843 651 536
16 357 548 1,990 1,990 1,470 1,780 1,160 653 769 754 634 539
17 359 581 2,090 1,960 1,600 1,640 1,230 779 830 698 637 555
18 369 614 2,180 1,920 1,480 1,610 1,120 993 926 683 636 545
19 372 657 2,210 1,850 1,460 1,650 1,180 905 903 671 629 519
20 383 756 2,240 1,810 1,600 1,740 1,210 852 870 660 638 497
21 405 858 2,260 1,790 1,630 1,840 1,280 911 927 663 661 475
22 430 881 2,220 1,850 1,770 1,900 1,390 884 1,010 675 656 470
23 440 884 2,320 1,790 1,700 1,820 1,390 839 1,240 704 681 464
24 460 924 2,400 1,680 1,700 1,760 1,200 887 1,250 726 683 462
25 458 885 2,340 1,670 1,550 1,810 1,090 933 1,160 719 646 496
26 432 885 2,420 1,640 1,440 1,880 984 939 1,090 721 599 477
27 408 878 2,600 1,560 1,420 1,790 967 962 1,040 706 590 470
28 394 946 2,800 1,480 1,610 1,750 943 854 939 727 588 490
29 380 1,540 2,660 1,580 1,750 1,760 921 857 870 747 579 526
30 379   2,530 1,630 1,750 1,820 981 812 880 717 569 537
31 386   2,550   1,750   950 741   713   526