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USGS Daily Statistics for the Nation

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 06607200 Maple River at Mapleton, IA


Monona County, Iowa
Hydrologic Unit Code 10230005
Latitude  42°09'24.4", Longitude  95°48'37.0" NAD83
Drainage area 669  square miles
Gage datum 1,081.31 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 1941-10-01 -> 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
1 133 137 405 576 452 591 526 327 267 179 180 161
2 132 138 384 542 466 560 480 325 214 198 180 161
3 134 143 366 485 463 484 459 319 199 187 175 157
4 134 147 395 529 437 501 440 292 223 188 171 156
5 129 158 384 521 425 551 437 344 210 184 171 152
6 135 165 340 472 487 479 533 359 200 193 172 150
7 127 162 329 423 532 508 531 370 184 201 168 150
8 124 164 302 399 472 663 459 318 185 214 166 149
9 123 190 320 378 425 647 486 320 199 212 174 148
10 121 209 355 368 417 524 536 300 185 220 178 145
11 120 182 400 357 438 507 473 262 186 216 178 143
12 119 180 501 366 433 666 460 283 244 209 181 144
13 119 192 658 383 422 699 436 276 320 198 185 143
14 121 216 749 370 416 782 432 284 234 189 181 171
15 120 221 705 366 397 800 376 312 189 193 178 214
16 122 193 566 363 379 896 368 281 177 201 174 192
17 123 227 494 359 395 916 419 269 192 213 172 176
18 123 291 544 348 447 806 462 250 196 209 181 158
19 146 441 543 357 497 802 438 234 184 208 189 150
20 139 406 550 386 439 851 376 255 187 200 191 150
21 131 356 487 400 471 949 367 275 189 191 190 145
22 126 311 451 427 460 783 375 273 185 185 186 138
23 123 314 463 419 490 610 372 266 183 190 179 136
24 119 274 481 393 540 598 400 231 183 191 172 133
25 119 260 481 378 525 595 359 222 182 185 167 134
26 118 265 510 398 517 601 310 208 184 180 165 154
27 117 395 570 460 539 744 308 225 179 177 167 160
28 115 390 671 483 663 710 342 255 173 173 165 180
29 115 558 697 452 622 630 331 265 171 170 166 164
30 117   667 421 514 598 341 297 173 173 164 161
31 132   553   659   364 333   177   143