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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 -> 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
1 328 235 750 1,950 1,520 1,830 1,960 566 617 539 414 392
2 311 234 771 1,820 1,630 1,800 1,820 553 564 567 419 391
3 296 245 782 1,700 1,740 1,700 1,690 548 540 574 436 381
4 279 265 812 1,650 1,780 1,640 1,540 533 528 534 437 364
5 268 248 889 1,640 1,790 1,640 1,390 540 482 524 421 345
6 266 251 970 1,620 1,740 1,580 1,330 535 468 533 415 336
7 262 252 962 1,560 1,680 1,550 1,290 534 486 532 410 331
8 253 257 905 1,520 1,700 1,530 1,290 538 433 510 411 334
9 246 260 897 1,450 1,680 1,650 1,400 538 386 573 393 325
10 238 288 843 1,390 1,660 1,800 1,450 545 393 648 376 313
11 235 331 911 1,340 1,630 1,890 1,350 557 376 677 377 311
12 223 348 1,020 1,340 1,570 2,000 1,250 571 357 695 395 312
13 214 311 1,170 1,370 1,590 2,030 1,180 604 367 673 427 319
14 211 326 1,420 1,370 1,550 2,140 1,130 602 399 644 436 386
15 202 375 1,540 1,370 1,490 2,240 1,070 553 407 612 426 460
16 201 411 1,560 1,410 1,490 2,180 969 473 409 569 424 490
17 216 423 1,540 1,430 1,450 2,160 908 465 451 532 418 483
18 220 429 1,510 1,380 1,480 2,250 904 469 478 508 427 452
19 223 487 1,550 1,270 1,490 2,370 882 484 439 502 453 420
20 231 628 1,670 1,240 1,480 2,330 902 472 439 505 465 388
21 243 683 1,660 1,330 1,530 2,250 889 538 487 501 483 346
22 250 717 1,590 1,440 1,540 2,260 794 592 502 481 486 318
23 243 707 1,500 1,480 1,590 2,430 786 602 482 474 479 296
24 243 696 1,510 1,470 1,660 2,350 749 612 440 511 469 281
25 240 676 1,580 1,510 1,700 2,230 742 630 426 516 439 277
26 229 661 1,620 1,520 1,790 2,100 740 625 477 491 429 285
27 223 673 1,650 1,500 1,920 2,000 723 617 538 457 432 303
28 226 705 1,650 1,490 1,880 2,040 662 585 561 429 434 332
29 222 884 1,800 1,480 1,890 2,000 597 671 550 416 408 357
30 222   1,880 1,460 1,950 2,060 596 742 542 418 392 364
31 229   1,990   1,920   572 718   420   359