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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°53'46.7", Longitude  95°14'34.8" NAD83
Drainage area 1,548  square miles
Gage datum 1,223.87 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 1972-10-01 -> 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
1 296 223 595 1,690 1,670 1,650 1,790 571 465 526 463 429
2 284 220 624 1,680 1,690 1,610 1,820 526 438 537 462 416
3 281 224 654 1,660 1,720 1,580 1,670 494 401 554 470 403
4 280 221 687 1,660 1,750 1,530 1,510 467 368 564 479 391
5 274 216 719 1,630 1,710 1,510 1,380 453 367 581 485 376
6 264 217 762 1,590 1,680 1,500 1,290 445 373 591 471 368
7 254 214 840 1,570 1,660 1,480 1,240 456 365 586 455 351
8 252 212 922 1,560 1,650 1,470 1,210 450 366 618 443 337
9 248 214 876 1,540 1,670 1,450 1,210 447 362 654 440 335
10 231 228 856 1,510 1,670 1,430 1,230 441 351 674 446 331
11 224 243 871 1,510 1,650 1,430 1,260 435 341 675 449 326
12 227 251 928 1,550 1,650 1,480 1,220 434 326 664 453 333
13 225 278 983 1,610 1,670 1,580 1,270 436 323 652 468 343
14 224 308 1,090 1,700 1,710 1,600 1,260 451 329 636 474 347
15 225 328 1,310 1,740 1,700 1,700 1,270 441 374 614 476 353
16 225 344 1,670 1,710 1,670 1,750 1,270 421 417 580 471 361
17 227 367 1,800 1,670 1,640 1,900 1,250 405 469 552 461 366
18 226 386 1,680 1,620 1,590 2,050 1,170 408 505 535 463 362
19 229 413 1,660 1,600 1,540 2,040 1,080 424 572 522 467 352
20 238 457 1,600 1,610 1,490 2,000 1,000 427 611 516 476 338
21 247 492 1,520 1,630 1,500 2,010 925 420 790 512 489 326
22 245 510 1,530 1,660 1,550 2,210 879 415 871 512 498 315
23 237 518 1,520 1,680 1,570 2,900 850 454 778 515 499 297
24 231 521 1,520 1,670 1,560 2,750 823 470 700 523 483 283
25 223 520 1,510 1,670 1,570 2,550 805 471 669 527 467 280
26 215 500 1,490 1,660 1,560 2,350 790 472 649 525 454 287
27 214 513 1,520 1,640 1,580 2,240 763 489 631 514 437 299
28 217 537 1,570 1,650 1,600 2,110 715 474 594 501 434 316
29 220 735 1,620 1,720 1,620 1,960 675 473 551 494 437 311
30 224   1,660 1,690 1,670 1,850 640 462 524 483 436 308
31 221   1,670   1,690   608 467   472   306