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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 05412020 Turkey River above French Hollow Cr at Elkader, IA


Clayton County, Iowa
Hydrologic Unit Code 07060004
Latitude  42°50'36.6", Longitude  91°24'04.1" NAD27
Drainage area 903  square miles
Gage datum 694.65 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 2000-10-01 -> 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
1 465 329 798 1,480 1,280 1,480 1,530 642 750 713 588 473
2 450 320 730 1,510 1,300 1,360 1,360 599 758 832 559 470
3 451 345 661 1,400 1,330 1,280 1,220 572 854 871 526 463
4 458 460 627 1,340 1,510 1,270 1,090 550 919 909 535 457
5 457 440 753 1,270 1,770 1,300 1,070 559 1,040 830 561 440
6 457 419 839 1,170 1,570 1,290 1,530 574 987 771 575 427
7 475 446 856 1,090 1,410 1,240 1,590 571 887 791 559 401
8 454 352 896 1,020 1,290 1,580 1,310 585 791 860 533 390
9 431 338 938 1,010 1,270 1,990 1,140 598 781 1,030 511 388
10 407 388 1,300 1,030 1,410 3,190 1,140 592 969 1,120 493 389
11 390 428 1,540 1,180 1,410 2,310 1,170 576 1,100 1,040 500 374
12 385 401 1,420 1,240 1,380 1,690 1,200 546 848 891 509 364
13 369 398 1,490 1,220 1,480 1,810 1,080 555 766 765 521 431
14 361 458 2,180 1,240 1,480 1,610 940 551 714 739 499 621
15 344 586 2,070 1,370 1,540 1,490 913 523 649 704 481 572
16 327 542 1,740 1,460 1,490 1,340 841 492 801 660 473 526
17 331 477 1,450 1,360 1,340 1,360 800 473 748 636 459 480
18 323 462 1,350 1,360 1,230 1,400 830 475 656 630 447 439
19 304 488 1,370 1,420 1,280 1,650 880 520 744 620 432 405
20 288 622 1,470 1,490 1,370 1,980 841 689 1,100 603 423 397
21 423 686 1,540 1,520 1,310 1,760 837 723 1,090 601 424 396
22 554 720 1,600 1,540 1,760 1,780 1,050 688 1,320 635 423 398
23 567 685 1,670 1,470 2,370 1,820 967 704 1,580 687 434 392
24 474 637 1,480 1,400 2,040 1,730 1,120 873 1,420 713 437 412
25 431 575 1,290 1,910 1,610 1,730 1,140 1,130 996 678 433 427
26 399 543 1,240 1,930 1,480 1,550 927 1,600 815 694 425 437
27 375 793 1,230 1,770 1,470 1,490 804 1,000 748 750 443 484
28 356 886 1,360 1,500 1,480 1,590 761 990 713 710 467 595
29 349 640 1,300 1,360 1,600 1,860 719 1,340 657 649 481 599
30 336   1,260 1,290 2,070 1,720 728 1,830 608 638 484 521
31 331   1,290   1,900   706 909   602   488