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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 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 853.10 feet above NGVD29
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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 -> 2023-09-30)

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
1 456 354 952 2,070 1,420 2,010 1,900 713 589 687 623 473
2 431 382 987 1,920 1,470 2,110 1,760 721 547 680 616 469
3 405 378 1,050 1,850 1,510 2,080 1,630 669 536 697 588 461
4 380 369 1,190 1,810 1,530 2,190 1,550 615 516 707 578 449
5 391 385 1,310 1,770 1,550 2,140 1,430 591 485 678 575 445
6 450 399 1,300 1,730 1,560 1,920 1,340 566 489 703 564 456
7 414 419 1,340 1,650 1,570 1,840 1,260 555 470 649 567 439
8 384 405 1,300 1,540 1,570 1,820 1,240 551 530 642 558 428
9 358 411 1,280 1,530 1,570 2,000 1,420 561 546 659 566 409
10 342 437 1,300 1,500 1,530 2,020 1,500 575 526 662 559 406
11 321 458 1,390 1,480 1,450 1,890 1,340 572 500 688 561 399
12 313 426 1,530 1,510 1,440 1,880 1,270 598 503 717 573 391
13 306 457 1,700 1,570 1,510 2,160 1,180 544 502 681 561 419
14 293 487 1,850 1,550 1,530 2,140 1,150 519 530 655 539 486
15 282 507 1,900 1,570 1,450 2,090 1,110 537 520 642 534 529
16 289 613 1,890 1,600 1,430 2,100 996 611 541 616 528 492
17 300 628 1,900 1,630 1,400 2,100 963 638 562 583 529 455
18 317 714 1,800 1,670 1,410 2,050 1,030 551 518 567 524 429
19 320 839 1,980 1,620 1,520 2,070 1,010 509 560 558 525 409
20 327 1,010 2,070 1,530 1,650 2,030 993 577 654 549 534 393
21 344 1,040 1,980 1,500 1,580 1,980 924 619 707 543 529 387
22 356 979 1,810 1,440 1,540 2,150 868 618 639 576 524 380
23 354 999 1,750 1,440 1,610 2,240 829 612 638 619 517 374
24 335 1,050 1,740 1,430 1,620 2,180 814 590 642 612 504 383
25 320 988 1,790 1,420 1,670 2,060 789 568 656 582 486 388
26 318 957 1,780 1,520 1,750 1,920 800 644 719 553 476 399
27 319 931 1,880 1,580 1,940 1,810 821 675 720 532 483 410
28 324 1,010 1,840 1,490 1,960 1,820 854 648 716 517 488 471
29 303 1,080 1,830 1,400 1,950 1,800 793 649 687 513 485 464
30 310   1,820 1,400 2,090 1,870 741 688 708 545 476 447
31 342   2,030   2,070   714 637   593   471