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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 06605850 Little Sioux River at Linn Grove, IA


Buena Vista County, Iowa
Hydrologic Unit Code 10230003
Latitude  42°53'45", Longitude  95°14'35" NAD27
Drainage area 1,548  square miles
Gage datum 1,223.60 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 1972-10-01 -> 2020-09-30)

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
1 310 233 607 1,740 1,700 1,640 1,750 605 496 564 467 453
2 297 230 643 1,740 1,700 1,590 1,800 557 467 572 470 439
3 293 232 677 1,710 1,700 1,560 1,650 523 428 584 481 425
4 292 229 711 1,710 1,710 1,500 1,470 494 390 595 492 412
5 287 223 744 1,680 1,680 1,460 1,340 480 389 616 501 396
6 277 223 792 1,640 1,640 1,430 1,250 469 396 628 487 388
7 267 218 874 1,620 1,620 1,410 1,200 478 387 623 472 372
8 264 216 964 1,610 1,610 1,410 1,170 472 390 659 460 357
9 259 217 916 1,580 1,630 1,390 1,160 468 384 698 458 353
10 242 231 899 1,560 1,610 1,370 1,180 461 373 721 465 349
11 235 248 917 1,560 1,580 1,380 1,220 457 362 722 468 345
12 237 258 982 1,600 1,590 1,440 1,250 458 346 710 473 354
13 235 287 1,040 1,680 1,620 1,560 1,300 460 343 695 489 363
14 234 320 1,160 1,770 1,660 1,600 1,290 477 350 672 497 367
15 234 337 1,390 1,820 1,640 1,710 1,300 467 400 646 500 374
16 234 349 1,780 1,790 1,610 1,790 1,300 446 446 611 495 383
17 236 376 1,910 1,740 1,580 1,950 1,290 429 503 584 485 388
18 236 398 1,780 1,690 1,550 2,100 1,210 433 542 567 488 385
19 240 428 1,760 1,660 1,510 2,060 1,120 451 615 553 492 373
20 250 476 1,690 1,660 1,470 1,980 1,040 455 657 548 502 358
21 259 515 1,600 1,680 1,470 1,970 960 446 852 544 516 345
22 257 534 1,610 1,710 1,490 1,990 915 441 940 544 526 334
23 248 544 1,590 1,740 1,500 2,070 897 484 839 547 527 314
24 241 548 1,580 1,730 1,510 2,220 870 501 754 556 511 300
25 232 547 1,560 1,730 1,520 2,280 852 503 720 558 494 296
26 224 526 1,530 1,730 1,510 2,190 837 504 699 555 481 301
27 223 532 1,540 1,700 1,550 2,140 808 523 679 540 462 308
28 226 544 1,600 1,700 1,580 2,050 757 506 639 522 458 325
29 229 779 1,660 1,770 1,610 1,910 715 504 593 501 461 321
30 233   1,710 1,730 1,670 1,810 678 491 563 483 461 320
31 231   1,720   1,690   645 497   473   319