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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 -> 2020-09-30)

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
1 181 215 617 554 601 807 582 398 430 270 225 203
2 174 200 503 512 581 683 632 404 309 274 225 203
3 174 225 520 464 569 707 708 370 274 268 220 197
4 174 220 566 498 535 729 541 306 308 255 222 192
5 175 254 513 482 559 629 520 363 304 265 219 189
6 183 217 470 453 668 615 545 337 331 246 212 187
7 168 221 453 451 585 550 603 395 327 305 205 187
8 165 235 413 435 573 1,010 529 364 310 272 204 183
9 163 257 436 438 534 933 882 316 317 277 230 181
10 154 273 508 418 519 740 742 320 302 288 224 179
11 154 242 580 413 542 833 587 324 433 307 218 182
12 155 233 673 415 558 1,040 664 399 401 296 235 184
13 154 285 934 438 560 939 548 310 448 253 230 205
14 158 287 926 445 511 944 518 357 387 241 223 323
15 163 265 733 436 535 1,120 457 363 292 238 219 262
16 164 309 684 469 517 956 423 375 321 240 218 264
17 176 350 641 419 500 1,010 744 370 267 251 232 223
18 208 421 859 402 602 1,030 621 317 258 246 241 200
19 261 613 813 416 717 780 570 344 270 236 231 188
20 195 577 663 441 574 799 469 403 257 233 230 184
21 183 570 586 515 603 1,170 409 446 256 250 230 183
22 173 428 585 453 588 915 411 424 229 240 219 177
23 175 432 648 623 569 839 385 327 228 259 214 177
24 165 407 659 485 642 822 403 309 227 248 208 174
25 158 365 626 505 693 770 421 299 242 232 205 171
26 157 407 622 486 754 611 405 278 349 226 204 191
27 159 469 693 501 643 877 390 316 275 223 211 220
28 158 568 778 530 666 802 352 368 251 215 206 244
29 160 731 656 500 769 699 384 371 285 211 203 227
30 169   630 563 687 651 378 376 269 216 200 239
31 175   564   699   329 383   219   198