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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
1 479 332 827 1,480 1,280 1,480 1,530 642 750 713 588 473
2 464 322 756 1,510 1,300 1,360 1,360 599 758 832 559 470
3 466 349 683 1,400 1,330 1,280 1,220 572 854 871 526 463
4 473 470 648 1,340 1,510 1,270 1,090 550 919 909 535 457
5 473 449 779 1,270 1,770 1,300 1,070 559 1,040 830 561 440
6 473 427 868 1,170 1,570 1,290 1,530 574 987 771 575 427
7 492 455 887 1,090 1,410 1,240 1,590 571 887 791 559 401
8 470 356 929 1,020 1,290 1,580 1,310 585 791 860 533 390
9 446 342 973 1,010 1,270 1,990 1,140 598 781 1,030 511 388
10 421 394 1,350 1,030 1,410 3,190 1,140 592 969 1,120 493 389
11 404 437 1,600 1,180 1,410 2,310 1,170 576 1,100 1,040 500 384
12 399 409 1,480 1,240 1,380 1,690 1,200 546 848 891 509 375
13 383 405 1,550 1,220 1,480 1,810 1,080 555 766 765 521 445
14 374 469 2,270 1,240 1,480 1,610 940 551 714 739 499 644
15 356 603 2,150 1,370 1,540 1,490 913 523 649 704 481 592
16 338 557 1,810 1,460 1,490 1,340 841 492 801 660 473 543
17 342 491 1,510 1,360 1,340 1,360 800 473 748 636 459 494
18 333 477 1,400 1,360 1,230 1,400 830 475 656 630 447 452
19 313 503 1,430 1,420 1,280 1,650 880 520 744 620 432 418
20 296 642 1,530 1,490 1,370 1,980 841 689 1,100 603 423 410
21 436 708 1,600 1,520 1,310 1,760 837 723 1,090 601 424 408
22 574 744 1,660 1,540 1,760 1,780 1,050 688 1,320 635 423 409
23 587 707 1,740 1,470 2,370 1,820 967 704 1,580 687 434 403
24 489 657 1,540 1,400 2,040 1,730 1,120 873 1,420 713 437 423
25 443 593 1,340 1,910 1,610 1,730 1,140 1,130 996 678 433 439
26 409 560 1,290 1,930 1,480 1,550 927 1,600 815 694 425 449
27 382 822 1,270 1,770 1,470 1,490 804 1,000 748 750 443 497
28 362 918 1,410 1,500 1,480 1,590 761 990 713 710 467 614
29 355 736 1,350 1,360 1,600 1,860 719 1,340 657 649 481 618
30 341   1,300 1,290 2,070 1,720 728 1,830 608 638 484 537
31 335   1,340   1,900   706 909   602   503