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USGS 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 -> 2025-09-30)

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
1 182 136 412 758 539 671 730 308 328 303 295 196
2 183 133 371 709 590 718 695 284 293 355 263 195
3 177 182 295 638 630 653 701 268 272 438 250 194
4 170 273 257 609 732 582 676 264 271 401 247 190
5 161 191 327 554 749 553 614 266 407 367 247 181
6 162 173 392 509 694 562 678 261 362 366 252 172
7 165 188 379 485 612 548 644 258 512 362 251 166
8 161 152 388 506 547 897 606 252 445 350 240 161
9 153 124 457 512 541 1,270 576 255 414 427 227 161
10 150 135 541 726 576 1,460 553 245 425 499 220 160
11 144 165 544 707 572 1,030 530 236 361 419 216 157
12 137 159 561 601 570 893 526 227 324 368 220 154
13 128 149 551 543 575 835 503 224 384 332 225 155
14 125 186 809 620 633 736 443 217 393 310 232 156
15 122 222 847 793 607 707 469 209 312 303 240 185
16 121 196 736 640 575 814 409 201 445 304 227 197
17 123 163 658 562 510 814 389 217 411 293 216 182
18 121 161 606 555 494 728 393 201 317 285 207 167
19 117 178 589 587 505 773 393 207 436 279 201 159
20 118 234 710 630 619 752 393 223 627 273 200 158
21 124 359 798 692 860 695 363 248 555 280 202 158
22 198 383 732 712 848 932 368 426 606 294 215 153
23 188 276 732 668 833 1,520 445 301 640 309 220 143
24 171 239 680 608 690 1,390 566 689 628 311 212 135
25 160 207 537 604 631 883 635 641 546 308 202 136
26 155 192 508 610 621 716 544 392 428 318 196 140
27 164 250 508 611 683 720 431 330 387 360 192 201
28 149 337 586 572 758 817 384 480 344 343 196 271
29 147 354 607 531 745 835 403 690 312 298 199 229
30 139   696 528 791 739 373 474 293 285 200 204
31 138   750   859   336 372   312   199