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USGS Surface-Water Daily Statistics for Iowa

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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 05387440 Upper Iowa River at Bluffton, IA


Winneshiek County, Iowa
Hydrologic Unit Code 07060002
Latitude  43°24'25", Longitude  91°53'56" NAD27
Drainage area 367  square miles
Gage datum 944.65 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 2002-10-01 -> 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
1 188 143 445 791 529 674 703 309 328 312 305 205
2 191 139 400 740 587 726 665 283 294 366 271 203
3 187 192 316 651 613 660 601 265 274 452 257 202
4 179 292 273 613 708 586 535 262 273 414 253 195
5 170 203 314 565 734 544 486 266 416 379 253 187
6 170 182 402 521 684 521 561 255 370 378 259 179
7 174 198 393 499 604 525 584 255 527 374 258 173
8 170 159 406 526 538 902 564 250 457 361 247 167
9 161 128 481 534 534 1,300 544 254 425 442 234 167
10 159 140 575 769 566 1,500 527 245 436 518 225 166
11 153 173 580 750 562 1,060 503 235 369 434 221 163
12 146 166 601 636 571 913 501 226 331 381 225 165
13 136 155 591 573 582 853 483 223 394 344 231 167
14 133 196 875 658 650 750 422 216 403 320 238 167
15 130 236 916 849 624 722 453 208 319 313 246 197
16 127 208 796 683 591 834 394 199 458 314 233 210
17 129 174 710 592 524 835 376 216 422 302 221 194
18 127 172 654 577 510 739 384 199 324 295 212 179
19 123 190 635 608 523 787 386 206 449 288 205 171
20 124 251 767 654 632 768 388 223 649 282 203 169
21 130 386 864 712 873 709 358 249 573 289 203 167
22 211 412 791 695 833 907 365 436 627 304 216 162
23 200 296 789 643 814 1,280 446 306 663 320 222 151
24 182 255 729 595 676 1,080 574 712 651 322 215 143
25 170 221 573 601 605 805 647 662 565 318 205 143
26 164 204 541 609 597 671 552 402 441 329 198 146
27 175 267 539 611 658 690 435 337 398 373 195 212
28 158 362 623 575 744 793 386 494 354 355 199 281
29 156 413 645 530 739 798 406 713 321 309 205 235
30 147   744 509 794 699 376 485 301 295 208 207
31 145   791   869   338 372   322   204