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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 06609500 Boyer River at Logan, IA


Harrison County, Iowa
Hydrologic Unit Code 10230007
Latitude  41°38'30.1", Longitude  95°46'56.4" NAD83
Drainage area 871  square miles
Gage datum 1,010.69 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 1918-10-01 -> 2022-09-30)

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
1 180 213 610 551 593 797 579 395 426 267 224 202
2 173 198 500 511 574 677 627 401 306 272 224 202
3 173 222 520 464 565 699 700 368 272 265 219 197
4 173 218 565 496 532 720 537 304 305 252 221 192
5 174 251 513 480 556 623 516 360 301 262 218 188
6 182 215 470 452 660 610 540 335 327 243 211 186
7 167 219 452 450 580 549 598 391 322 301 205 186
8 165 233 414 434 568 994 526 362 307 269 203 182
9 162 254 435 437 531 918 872 314 315 273 228 180
10 154 270 505 417 517 761 738 317 301 284 223 179
11 153 240 574 411 539 828 588 323 427 303 218 181
12 154 231 663 414 554 1,030 663 396 396 292 234 184
13 153 282 915 437 555 926 546 307 442 250 229 204
14 158 284 908 442 507 929 516 354 381 239 222 319
15 162 262 724 433 530 1,110 456 359 289 236 218 260
16 164 305 677 466 512 945 422 371 317 237 217 262
17 175 345 633 417 498 1,000 735 365 264 248 231 221
18 206 414 845 400 597 1,020 615 314 255 243 239 199
19 258 602 801 414 708 775 564 340 266 233 230 187
20 193 567 664 438 569 793 466 397 254 231 228 183
21 181 560 589 510 597 1,150 407 440 253 248 229 182
22 172 422 586 450 581 905 409 418 227 237 217 176
23 174 426 647 614 563 830 383 324 225 256 213 176
24 164 403 659 480 634 814 400 306 225 246 207 173
25 157 369 627 499 685 763 417 296 239 232 204 170
26 155 407 621 481 745 607 402 276 343 225 203 190
27 158 467 688 495 641 868 387 313 271 222 210 218
28 157 563 770 523 663 795 350 363 248 215 205 242
29 159 727 652 494 762 694 381 366 281 212 202 224
30 168   626 556 682 646 376 371 266 217 199 236
31 174   562   693   329 379   219   197