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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°38'29.8", Longitude  95°46'56.0" NAD83
Drainage area 871  square miles
Gage datum 1,009.38 feet above NGVD29
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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 -> 2019-09-30)

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
1 172 211 617 554 601 807 582 394 431 268 220 198
2 166 195 503 512 581 683 632 401 308 268 221 198
3 167 218 520 464 569 707 708 368 273 262 216 192
4 167 214 566 498 535 729 541 302 308 250 217 187
5 168 249 513 482 559 629 520 361 304 250 215 184
6 176 212 470 453 668 615 545 335 331 231 208 182
7 161 216 453 451 585 550 603 394 327 293 201 182
8 159 231 413 435 573 1,010 529 363 310 264 200 178
9 156 253 436 438 534 933 882 313 317 269 225 176
10 148 269 508 418 519 740 742 318 301 277 220 175
11 148 238 580 413 542 833 587 322 424 296 214 178
12 150 229 673 415 558 1,040 664 398 393 287 232 180
13 148 283 934 438 560 939 548 307 446 245 227 201
14 151 285 926 445 511 944 518 356 385 234 219 319
15 156 261 733 436 535 1,120 457 362 289 231 215 259
16 160 306 684 469 517 956 423 374 319 234 214 261
17 172 346 641 419 500 1,010 744 368 265 245 228 219
18 203 416 859 402 602 1,030 621 312 257 240 237 196
19 257 612 813 416 717 780 570 341 264 230 228 184
20 190 578 663 441 574 799 469 401 253 228 226 179
21 178 569 586 515 603 1,170 409 444 253 245 226 179
22 168 424 585 453 588 915 411 422 225 234 214 173
23 170 423 648 623 569 839 385 325 224 253 210 173
24 159 398 659 485 642 822 400 308 225 243 204 170
25 153 365 626 505 693 770 418 298 239 227 201 167
26 151 407 622 486 754 611 402 276 348 221 200 187
27 154 469 693 501 643 877 387 315 273 218 207 217
28 153 568 778 530 666 802 350 367 249 209 202 238
29 155 731 656 500 769 699 381 370 283 206 199 212
30 165   630 563 687 651 375 375 267 211 195 228
31 171   564   699   325 383   214   189