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USGS Daily Statistics for the Nation

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 05451500 Iowa River at Marshalltown, IA


Marshall County, Iowa
Hydrologic Unit Code 07080208
Latitude  42°03'57", Longitude  92°54'27" NAD27
Drainage area 1,532  square miles
Gage datum 852.94 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 1902-10-01 -> 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
1 450 352 992 2,040 1,410 2,010 1,900 713 584 682 617 465
2 425 381 1,020 1,900 1,470 2,110 1,760 718 542 675 612 462
3 399 377 1,070 1,830 1,510 2,080 1,640 666 531 691 583 454
4 375 367 1,210 1,790 1,530 2,180 1,560 612 512 701 574 442
5 386 382 1,320 1,750 1,550 2,120 1,440 588 481 672 570 438
6 444 396 1,300 1,710 1,560 1,910 1,350 563 485 697 560 449
7 408 417 1,340 1,630 1,570 1,830 1,280 552 466 643 562 433
8 379 403 1,290 1,530 1,590 1,810 1,260 548 526 636 551 421
9 353 410 1,270 1,510 1,600 1,980 1,440 557 541 653 558 403
10 338 436 1,300 1,490 1,580 2,000 1,520 570 522 656 552 400
11 317 457 1,380 1,460 1,490 1,870 1,370 567 496 682 553 393
12 310 425 1,510 1,490 1,470 1,860 1,290 593 498 711 565 386
13 303 455 1,680 1,550 1,530 2,130 1,200 539 498 675 552 413
14 290 484 1,820 1,530 1,550 2,110 1,160 515 526 650 531 478
15 280 505 1,870 1,550 1,470 2,070 1,110 533 516 636 526 521
16 287 613 1,870 1,570 1,440 2,070 1,010 605 536 610 520 484
17 298 631 1,880 1,610 1,410 2,080 975 631 557 578 521 447
18 314 716 1,780 1,650 1,430 2,030 1,030 546 514 562 516 421
19 317 837 1,960 1,600 1,530 2,060 1,010 504 556 553 516 402
20 324 1,000 2,040 1,520 1,660 2,020 992 571 648 544 526 387
21 341 1,030 1,950 1,490 1,620 1,970 923 612 701 538 521 381
22 353 970 1,790 1,430 1,640 2,140 866 611 634 571 515 374
23 350 987 1,730 1,440 1,720 2,230 826 605 633 613 509 369
24 332 1,040 1,720 1,420 1,690 2,170 810 583 637 606 497 377
25 318 977 1,770 1,410 1,730 2,060 786 561 651 577 479 383
26 316 948 1,760 1,510 1,800 1,920 796 635 712 549 469 394
27 317 960 1,860 1,570 1,990 1,820 816 665 714 528 475 404
28 322 1,070 1,820 1,490 2,000 1,830 848 643 709 513 480 464
29 302 1,040 1,810 1,400 1,980 1,820 810 643 681 509 477 458
30 309   1,800 1,400 2,100 1,880 753 682 702 540 468 441
31 340   2,000   2,080   717 631   588   465