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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 05486490 Middle River near Indianola, IA


Warren County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°25'27.7", Longitude  93°35'14.3" NAD83
Drainage area 489.4  square miles
Gage datum 775.94 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 -> 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
1 113 148 292 485 589 500 411 140 249 117 208 122
2 103 195 353 414 524 438 409 175 130 239 191 148
3 96 141 430 387 522 410 385 161 144 188 160 109
4 93 136 409 456 481 376 436 211 152 126 139 108
5 125 177 401 429 450 653 394 185 132 150 112 122
6 125 155 341 399 489 706 417 225 129 144 113 119
7 98 139 296 294 693 530 370 220 191 112 122 95
8 88 121 365 318 709 491 333 211 223 136 94 89
9 78 117 397 343 566 775 278 153 178 201 108 83
10 75 136 459 389 631 863 315 114 299 186 131 76
11 78 114 519 457 649 613 345 105 241 256 110 80
12 115 109 514 476 623 821 393 188 227 244 133 77
13 159 165 617 418 704 909 296 129 267 147 121 109
14 95 168 625 413 546 742 266 123 230 185 123 259
15 88 174 602 497 483 747 232 149 284 158 105 242
16 105 171 526 655 466 696 278 120 316 148 137 162
17 141 194 537 504 533 545 175 93 272 144 135 115
18 147 286 548 701 482 570 282 99 200 151 124 101
19 141 396 671 632 439 590 383 171 156 124 119 91
20 132 433 658 512 486 495 457 123 162 107 168 87
21 118 350 492 517 551 497 406 122 180 124 134 91
22 105 259 438 486 626 530 246 100 129 136 115 93
23 106 261 407 417 558 527 192 174 133 183 98 119
24 95 294 419 449 549 421 177 252 141 192 103 210
25 92 270 429 513 833 543 211 206 229 148 107 166
26 96 253 398 500 765 539 202 413 197 123 105 141
27 108 271 388 647 615 500 219 327 148 103 124 157
28 105 305 437 515 599 424 307 245 125 94 134 216
29 100 236 451 520 764 420 449 241 112 94 118 184
30 96   516 553 656 410 206 238 109 104 108 188
31 104   531   524   171 205   146   135