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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 05457700 Cedar River at Charles City, IA


Floyd County, Iowa
Hydrologic Unit Code 07080201
Latitude  43°03'43.9", Longitude  92°40'25.98" NAD83
Drainage area 1,054  square miles
Gage datum 973.15 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 1964-10-01 -> 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
1 410 277 716 2,260 1,350 1,310 1,290 612 590 811 548 417
2 393 274 922 2,100 1,390 1,170 1,110 628 515 795 538 411
3 369 275 899 1,800 1,540 1,060 1,160 584 477 813 558 426
4 351 282 857 1,780 1,570 1,020 1,010 625 468 783 556 420
5 336 279 893 1,860 1,460 1,010 912 562 530 798 522 408
6 326 279 869 1,880 1,510 1,040 1,100 525 583 825 507 421
7 314 302 974 1,780 1,490 1,020 1,210 517 557 752 520 412
8 304 316 979 1,860 1,390 1,410 1,120 523 519 735 512 404
9 290 364 989 1,750 1,330 1,840 922 595 520 781 494 387
10 282 399 1,070 1,470 1,310 1,620 913 767 541 813 493 370
11 287 389 1,080 1,440 1,260 1,460 912 692 503 800 534 361
12 288 375 1,300 1,660 1,260 1,390 927 553 459 838 559 369
13 284 346 1,340 1,670 1,270 1,640 868 520 513 849 547 401
14 277 355 1,320 1,700 1,310 1,520 897 503 610 734 533 444
15 270 410 1,460 1,710 1,320 1,380 833 497 605 630 519 470
16 270 441 1,560 1,620 1,270 1,340 936 791 799 565 509 468
17 280 412 1,590 1,600 1,220 1,420 945 856 863 547 514 434
18 303 418 1,550 1,450 1,270 1,630 1,040 640 756 539 515 403
19 333 451 1,610 1,350 1,400 1,680 1,010 683 655 544 520 379
20 335 491 1,660 1,490 1,490 1,780 845 757 806 553 527 375
21 326 574 1,630 1,630 1,410 1,600 803 669 912 569 538 367
22 332 607 1,560 1,570 1,450 1,520 784 652 1,130 562 571 363
23 344 601 1,560 1,470 1,430 1,860 787 677 1,190 566 558 355
24 340 570 1,630 1,380 1,270 1,980 891 666 1,150 570 509 353
25 323 515 1,540 1,380 1,190 1,610 965 749 1,070 551 472 356
26 307 466 1,420 1,250 1,160 1,500 847 685 982 542 466 361
27 294 477 1,370 1,210 1,250 1,490 759 650 862 624 450 377
28 285 629 1,400 1,310 1,360 1,510 789 780 809 604 442 445
29 283 885 1,460 1,450 1,400 1,430 813 852 897 561 435 433
30 278   1,690 1,390 1,440 1,440 842 705 913 565 428 452
31 273   2,050   1,470   680 639   568   440