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USGS 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 05458500 Cedar River at Janesville, IA


Bremer County, Iowa
Hydrologic Unit Code 07080201
Latitude  42°38'53.94", Longitude  92°27'54.67" NAD83
Drainage area 1,661  square miles
Gage datum 860.96 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 1904-10-01 -> 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
1 507 387 1,150 2,760 1,620 1,810 1,910 872 861 940 711 551
2 485 383 1,100 2,850 1,580 1,830 1,770 831 933 924 719 552
3 483 381 1,160 2,600 1,620 1,760 1,520 859 894 849 705 544
4 471 392 1,220 2,320 1,710 1,650 1,420 838 763 839 710 539
5 441 388 1,310 2,230 1,720 1,560 1,340 885 713 823 708 528
6 463 399 1,410 2,320 1,670 1,490 1,260 903 738 813 688 533
7 452 396 1,520 2,330 1,650 1,440 1,250 803 712 830 661 520
8 443 419 1,570 2,280 1,660 1,430 1,310 726 768 811 654 527
9 439 457 1,570 2,240 1,640 1,570 1,360 716 777 816 638 515
10 424 477 1,470 2,190 1,560 2,040 1,260 777 714 870 629 501
11 383 516 1,470 1,950 1,570 2,030 1,210 840 722 860 637 480
12 384 506 1,520 1,920 1,510 1,860 1,220 881 689 854 653 480
13 385 499 1,650 1,990 1,480 1,900 1,250 765 628 842 675 495
14 379 548 1,870 1,990 1,500 1,880 1,220 693 616 866 667 515
15 366 551 1,910 1,980 1,510 1,880 1,130 667 679 824 656 530
16 358 569 1,930 1,990 1,530 1,790 1,180 652 762 739 637 534
17 360 625 2,030 1,940 1,680 1,680 1,240 771 819 685 639 548
18 371 643 2,130 1,890 1,560 1,660 1,120 974 910 670 636 536
19 373 667 2,170 1,820 1,520 1,720 1,180 889 887 659 627 513
20 384 756 2,190 1,790 1,650 1,820 1,220 838 854 648 635 492
21 407 848 2,200 1,800 1,690 1,910 1,280 896 908 651 657 472
22 431 867 2,160 1,880 1,840 1,970 1,380 869 982 662 652 467
23 440 866 2,250 1,840 1,790 1,950 1,380 826 1,200 691 676 462
24 458 900 2,350 1,740 1,770 1,960 1,210 871 1,220 712 677 460
25 456 865 2,300 1,730 1,620 2,080 1,110 916 1,130 706 641 493
26 430 863 2,360 1,690 1,520 2,110 1,060 920 1,060 708 595 476
27 409 874 2,530 1,590 1,520 1,920 1,060 942 1,010 692 586 469
28 395 964 2,730 1,510 1,710 1,850 999 860 918 712 584 487
29 382 1,490 2,590 1,600 1,880 1,870 923 944 851 733 575 520
30 381   2,460 1,650 1,860 1,940 978 1,060 860 707 563 529
31 387   2,480   1,820   944 940   705   519