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USGS Surface-Water 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 06602400 Monona-Harrison Ditch near Turin, IA


Monona County, Iowa
Hydrologic Unit Code 10230004
Latitude  41°57'53.7", Longitude  95°59'30.3" NAD83
Drainage area 900  square miles
Gage datum 1,015.48 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 1958-10-01 -> 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
1 180 144 364 658 440 472 474 240 238 206 193 167
2 161 152 397 647 464 565 413 239 196 187 188 167
3 149 156 383 548 458 474 428 218 178 181 180 161
4 147 152 456 556 417 454 418 206 194 173 171 155
5 144 154 378 548 430 581 422 269 218 176 168 153
6 148 147 358 499 531 501 460 305 192 186 169 160
7 142 144 353 462 511 485 431 266 180 228 168 155
8 138 144 301 411 409 559 400 237 194 277 164 153
9 136 196 313 378 369 570 422 263 191 282 173 152
10 131 259 398 354 391 532 465 261 168 271 178 149
11 130 204 423 335 403 564 415 215 168 235 175 151
12 130 160 497 385 416 624 377 197 174 213 220 154
13 134 159 627 409 380 597 393 188 174 191 207 160
14 132 174 728 369 352 720 393 177 163 180 186 203
15 129 214 707 368 341 778 330 183 158 185 179 221
16 129 196 638 356 334 814 322 189 166 189 175 208
17 132 208 603 324 363 850 458 193 158 201 179 204
18 164 272 681 317 361 866 484 224 155 209 194 181
19 152 648 737 358 443 755 471 267 161 192 197 161
20 140 586 711 428 451 625 467 250 175 179 182 154
21 143 459 653 485 462 761 423 222 211 173 177 149
22 138 405 535 517 436 815 391 220 213 178 181 143
23 134 349 511 473 476 679 366 215 215 215 179 143
24 129 310 582 408 499 691 346 213 232 216 172 139
25 126 264 545 420 464 632 322 185 231 192 173 140
26 124 263 522 439 610 623 280 193 218 180 171 163
27 124 279 552 457 551 540 265 195 187 173 168 180
28 125 330 596 503 591 503 278 229 171 170 164 188
29 125 391 603 416 686 486 315 304 193 170 161 201
30 125   614 382 573 480 274 331 213 172 162 206
31 135   565   566   264 288   195   185