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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 05387500 Upper Iowa River at Decorah, IA


Winneshiek County, Iowa
Hydrologic Unit Code 07060002
Latitude  43°18'17.7", Longitude  91°47'43.4" NAD27
Drainage area 511  square miles
Gage datum 850.00 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 1951-10-01 -> 2021-09-30)

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
1 214 154 423 1,170 548 602 648 308 466 386 296 208
2 198 150 497 1,020 631 536 607 393 347 367 288 204
3 191 140 413 891 615 494 551 434 278 398 284 206
4 179 182 498 907 661 495 499 426 263 388 272 204
5 172 156 477 860 605 473 461 334 311 398 266 205
6 169 158 423 832 571 464 525 279 304 355 261 207
7 173 194 452 790 599 460 474 267 391 328 267 200
8 171 232 426 758 600 737 459 260 351 318 269 192
9 159 309 395 712 558 1,100 440 260 355 359 258 186
10 159 228 476 703 524 1,300 421 248 363 424 256 179
11 154 188 587 699 535 832 397 245 304 367 286 175
12 152 174 706 667 527 660 430 230 275 330 310 177
13 148 166 633 624 551 631 439 221 291 308 309 193
14 146 189 802 645 584 563 372 213 284 296 267 190
15 140 186 831 782 548 531 361 206 259 298 255 190
16 174 164 804 757 554 550 429 199 304 285 247 198
17 189 161 755 730 515 644 376 205 328 273 236 188
18 231 163 725 696 488 619 418 206 275 267 229 181
19 196 165 794 670 514 554 340 210 330 260 224 174
20 161 205 808 658 537 626 343 226 459 264 225 171
21 153 279 825 666 626 775 328 274 515 304 230 170
22 193 330 808 622 668 843 357 370 601 310 252 169
23 178 265 895 591 698 926 409 384 484 325 245 164
24 171 262 966 553 584 787 425 613 450 352 228 162
25 180 252 876 584 527 647 417 483 516 324 220 166
26 157 241 949 573 539 693 476 388 424 310 218 169
27 156 267 1,030 564 522 764 396 334 375 311 213 190
28 144 276 1,100 580 552 726 331 308 369 315 211 263
29 157 299 971 588 578 776 330 321 484 292 213 258
30 144   1,100 529 611 781 306 367 520 286 213 274
31 139   1,170   696   305 467   294   261