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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 05482500 North Raccoon River near Jefferson, IA


Greene County, Iowa
Hydrologic Unit Code 07100006
Latitude  41°59'16.3", Longitude  94°22'37.5" NAD83
Drainage area 1,619  square miles
Gage datum 967.01 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 1940-10-01 -> 2025-09-30)

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
1 325 233 743 1,940 1,530 1,820 1,960 618 616 533 410 388
2 307 232 763 1,810 1,630 1,790 1,820 597 565 561 414 387
3 293 243 775 1,690 1,740 1,690 1,690 583 542 567 431 377
4 276 262 805 1,650 1,780 1,630 1,540 558 529 528 433 360
5 266 246 882 1,640 1,790 1,670 1,390 559 483 518 417 341
6 264 248 961 1,620 1,740 1,610 1,330 550 468 527 411 333
7 260 250 952 1,560 1,680 1,570 1,300 552 486 526 407 328
8 250 254 896 1,520 1,690 1,550 1,300 564 433 505 407 331
9 244 257 889 1,440 1,670 1,660 1,410 565 386 567 390 322
10 236 285 840 1,390 1,650 1,810 1,450 593 393 641 373 310
11 232 327 919 1,330 1,620 1,890 1,360 622 376 670 373 308
12 221 345 1,030 1,330 1,570 2,000 1,270 625 357 688 391 308
13 212 307 1,180 1,370 1,590 2,030 1,200 644 367 666 423 316
14 209 323 1,420 1,360 1,540 2,130 1,170 631 399 637 432 381
15 200 371 1,540 1,360 1,480 2,230 1,100 574 407 605 422 455
16 200 407 1,560 1,400 1,480 2,180 984 490 409 563 420 485
17 214 418 1,530 1,420 1,440 2,170 921 479 451 526 415 478
18 218 425 1,500 1,370 1,470 2,250 926 482 478 503 424 447
19 220 482 1,540 1,260 1,480 2,370 908 495 439 497 450 416
20 228 621 1,660 1,230 1,470 2,320 923 485 439 499 462 384
21 240 676 1,650 1,320 1,530 2,240 911 549 487 496 479 342
22 247 709 1,580 1,430 1,550 2,240 821 600 502 475 484 314
23 240 700 1,490 1,470 1,600 2,420 806 608 482 469 477 293
24 241 689 1,510 1,460 1,660 2,340 768 616 440 505 467 278
25 237 669 1,580 1,530 1,700 2,220 778 633 426 511 436 274
26 227 654 1,610 1,560 1,780 2,090 794 628 477 486 426 282
27 221 666 1,640 1,530 1,910 2,010 765 619 538 452 429 301
28 223 698 1,650 1,510 1,870 2,060 690 586 561 424 431 329
29 220 884 1,790 1,490 1,880 2,020 617 670 550 411 404 354
30 220   1,870 1,470 1,940 2,070 631 740 542 414 388 361
31 227   1,970   1,910   613 716   415   355