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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 05421000 Wapsipinicon River at Independence, IA


Buchanan County, Iowa
Hydrologic Unit Code 07080102
Latitude  42°27'49", Longitude  91°53'42" NAD27
Drainage area 1,048  square miles
Gage datum 882.85 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 1933-10-01 -> 2021-09-30)

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
1 338 213 693 1,900 1,310 1,440 1,400 554 570 505 510 413
2 340 226 703 1,820 1,230 1,370 1,370 514 531 575 560 396
3 331 218 724 1,730 1,230 1,300 1,290 480 507 514 557 383
4 320 221 772 1,710 1,220 1,190 1,170 443 531 501 536 367
5 319 224 938 1,650 1,180 1,210 1,020 462 561 525 515 367
6 388 235 1,100 1,590 1,250 1,130 900 501 532 541 502 383
7 368 250 1,130 1,570 1,350 1,050 812 504 484 527 482 366
8 313 245 1,130 1,480 1,380 1,070 850 497 507 525 468 351
9 304 278 1,080 1,400 1,270 1,180 975 499 493 552 451 332
10 288 298 1,100 1,330 1,210 1,280 895 463 410 569 451 326
11 271 291 1,260 1,310 1,170 1,290 801 441 378 524 434 307
12 255 288 1,320 1,290 1,150 1,300 745 420 371 522 437 310
13 256 311 1,330 1,290 1,170 1,400 676 409 416 520 445 328
14 242 325 1,470 1,320 1,160 1,440 674 458 458 540 443 369
15 223 320 1,680 1,390 1,140 1,420 687 459 428 527 431 417
16 213 309 1,730 1,440 1,070 1,340 661 435 405 494 425 409
17 225 311 1,730 1,500 1,130 1,370 829 407 403 467 427 374
18 235 338 1,790 1,530 1,270 1,360 922 394 393 458 426 356
19 233 383 1,870 1,530 1,180 1,300 785 454 388 449 422 336
20 243 485 1,970 1,500 1,080 1,240 668 565 427 423 414 326
21 255 592 1,880 1,500 1,020 1,200 706 638 545 403 405 309
22 255 582 1,810 1,460 1,050 1,270 730 622 512 404 408 298
23 263 617 1,730 1,380 1,250 1,290 977 595 561 471 420 289
24 269 647 1,700 1,330 1,270 1,290 1,250 642 687 490 416 288
25 273 657 1,660 1,340 1,270 1,200 1,130 724 744 474 415 285
26 252 695 1,700 1,430 1,240 1,250 867 811 705 453 412 306
27 242 711 1,820 1,460 1,200 1,250 709 710 641 443 412 321
28 236 701 1,840 1,390 1,200 1,240 619 666 541 432 407 346
29 225 810 1,960 1,300 1,220 1,260 604 721 499 426 413 362
30 216   2,060 1,390 1,350 1,360 577 733 492 458 419 361
31 214   1,950   1,440   600 634   469   378