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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 06600500 Floyd River at James, IA


Plymouth County, Iowa
Hydrologic Unit Code 10230002
Latitude  42°34'36", Longitude  96°18'40" NAD27
Drainage area 886  square miles
Gage datum 1,092.59 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 1935-10-01 -> 2021-09-30)

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
1 122 91 341 709 431 527 496 258 155 160 170 140
2 113 90 373 726 459 482 517 221 150 165 168 141
3 109 92 424 618 470 446 477 205 142 163 161 135
4 107 94 512 649 418 488 456 223 141 158 157 136
5 104 101 548 696 391 548 481 208 155 165 156 131
6 102 103 496 605 389 535 504 202 164 166 153 129
7 98 103 473 583 405 526 514 205 170 174 152 127
8 99 107 398 548 388 913 455 205 168 176 149 125
9 99 163 349 447 378 696 446 207 162 186 146 118
10 93 225 393 405 393 556 439 183 179 193 146 117
11 91 222 464 391 411 528 429 188 217 192 146 121
12 90 188 584 422 416 529 414 201 230 185 151 120
13 92 213 681 457 459 593 399 222 198 174 152 123
14 93 214 796 450 416 590 398 235 188 168 153 125
15 91 190 836 415 397 586 370 240 214 167 151 127
16 92 188 636 400 374 562 333 217 194 167 150 128
17 92 212 557 382 359 697 317 214 181 172 150 131
18 98 226 624 368 368 614 349 206 182 173 151 139
19 118 354 662 369 419 638 320 185 177 171 154 128
20 107 362 627 383 373 692 280 179 189 168 157 120
21 108 304 545 379 403 884 291 188 239 161 155 115
22 101 250 485 418 463 902 320 182 319 159 155 112
23 97 260 543 491 460 802 320 186 245 164 152 110
24 91 278 545 488 439 653 314 160 200 167 148 107
25 88 235 535 431 414 661 274 156 185 171 144 107
26 86 225 538 409 450 614 270 150 171 174 140 113
27 85 256 593 408 551 663 243 157 159 168 139 123
28 85 299 774 398 691 704 226 182 150 162 139 135
29 84 508 919 396 590 647 223 208 146 156 139 138
30 85   843 395 578 542 232 176 148 153 139 148
31 89   785   541   248 160   165   141