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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 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 945.50 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 2002-10-01 -> 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
1 200 149 356 855 563 712 769 312 282 346 343 220
2 204 142 352 757 638 786 732 286 264 413 303 219
3 199 208 285 673 657 700 661 267 249 520 285 216
4 190 334 253 643 772 578 584 265 246 473 281 209
5 179 227 295 590 801 549 524 272 419 431 280 200
6 180 202 333 536 745 537 571 262 371 430 287 191
7 168 220 350 515 653 549 578 258 573 425 286 184
8 165 173 335 552 578 1,000 547 247 493 409 274 178
9 156 136 392 568 577 1,470 493 248 458 508 258 177
10 154 151 494 862 617 1,590 464 240 474 600 246 175
11 149 192 553 843 616 1,070 466 232 396 498 236 172
12 143 184 590 704 629 944 487 222 351 434 226 167
13 133 171 601 626 620 906 473 216 431 388 223 171
14 129 221 971 700 684 791 417 209 444 359 239 171
15 127 228 1,040 927 606 760 380 201 342 351 254 206
16 126 184 889 742 546 851 356 193 516 352 242 221
17 126 156 763 640 511 859 355 216 474 338 230 201
18 121 171 702 626 497 773 374 197 354 330 221 184
19 118 197 687 662 511 848 384 207 510 322 214 175
20 122 272 798 691 662 831 393 229 758 315 213 175
21 130 440 910 724 968 765 365 260 665 323 214 173
22 232 475 842 706 923 971 379 491 729 341 231 166
23 221 331 844 663 902 1,410 484 331 772 361 238 154
24 199 280 772 613 740 1,190 508 835 760 363 230 145
25 184 238 572 629 655 871 610 774 655 358 218 147
26 178 217 537 647 635 716 515 454 504 372 211 151
27 191 239 543 658 677 730 419 338 451 427 207 229
28 170 268 649 619 757 846 376 343 399 403 214 310
29 166 471 672 567 744 867 411 331 359 346 221 256
30 155   790 544 828 755 384 303 335 329 224 223
31 151   856   940   343 291   364   219