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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 05449500 Iowa River near Rowan, IA


Wright County, Iowa
Hydrologic Unit Code 07080207
Latitude  42°45'35.9", Longitude  93°37'17.9" NAD83
Drainage area 429  square miles
Gage datum 1,143.35 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 1940-10-01 -> 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
1 104 62 257 658 469 537 551 177 187 180 153 119
2 93 61 274 636 477 503 506 171 180 180 171 121
3 86 63 263 595 488 469 459 166 159 185 175 118
4 81 63 278 571 485 434 425 154 143 187 172 115
5 79 64 284 579 481 441 405 154 142 187 164 112
6 86 66 297 582 467 410 401 153 148 184 157 114
7 79 64 300 574 463 395 392 142 151 188 155 115
8 76 64 293 553 462 417 388 136 155 200 151 111
9 71 76 293 516 454 532 387 141 161 206 142 102
10 67 94 304 490 445 572 386 151 165 202 138 97
11 68 101 325 472 436 538 374 146 161 198 137 93
12 64 101 352 498 438 519 348 143 147 200 137 98
13 62 102 388 530 445 531 316 154 139 191 141 107
14 63 109 427 553 461 567 299 162 133 180 141 115
15 63 108 457 554 466 556 283 168 126 177 139 119
16 62 110 476 546 459 544 261 158 126 170 135 120
17 64 120 481 525 449 600 266 147 131 161 137 118
18 66 148 488 495 461 621 280 143 133 162 144 111
19 67 156 494 469 456 682 268 144 143 160 145 104
20 68 186 501 463 436 690 269 147 176 157 144 100
21 70 204 484 470 424 679 271 149 217 156 144 95
22 73 204 464 475 451 656 268 145 243 157 146 90
23 72 203 457 471 498 672 255 161 256 167 143 87
24 70 203 464 460 526 676 240 176 256 174 138 86
25 69 196 483 451 514 634 234 174 236 176 132 91
26 67 194 520 434 509 627 228 168 221 171 127 94
27 63 208 558 433 531 640 218 164 208 163 126 98
28 64 223 577 442 539 635 219 159 196 157 126 107
29 64 358 603 454 549 597 206 174 187 151 123 114
30 65   620 464 554 581 194 197 184 148 118 114
31 65   637   542   187 195   147   109