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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 06600500 Floyd River at James, IA


Plymouth County, Iowa
Hydrologic Unit Code 10230002
Latitude  42°34'35.0", Longitude  96°18'41.6" NAD83
Drainage area 886  square miles
Gage datum 1,093.29 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 1935-10-01 -> 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
1 119 90 342 690 433 539 506 296 153 157 167 136
2 110 89 367 705 462 498 519 242 148 161 164 137
3 107 92 414 602 471 465 478 221 140 159 158 132
4 105 95 498 632 421 503 456 234 139 154 154 132
5 103 102 534 676 394 554 480 217 152 160 153 127
6 100 103 486 588 391 534 502 214 160 161 150 126
7 96 104 462 567 409 523 510 232 165 169 148 124
8 97 109 391 532 396 886 453 228 164 171 145 122
9 97 163 343 435 390 679 444 224 158 180 143 116
10 91 221 384 395 407 545 436 196 174 187 143 115
11 89 217 450 382 421 517 426 198 210 186 143 118
12 88 185 563 410 420 517 410 208 222 179 147 117
13 90 208 656 444 466 577 396 227 192 169 149 121
14 91 210 766 437 422 573 394 238 183 164 150 123
15 89 192 804 403 400 569 367 241 207 163 148 125
16 90 188 616 390 377 549 332 219 188 162 147 126
17 91 208 543 377 360 677 315 214 176 167 146 128
18 96 221 604 366 367 608 345 208 176 168 147 136
19 115 343 640 370 414 633 315 188 172 166 151 126
20 105 352 606 385 370 680 278 181 183 163 154 117
21 106 296 528 378 402 861 288 189 230 157 152 113
22 99 244 474 413 467 904 315 182 308 155 151 110
23 95 253 536 482 461 1,030 315 186 237 159 148 108
24 90 270 536 479 442 739 309 161 193 162 145 105
25 87 229 525 423 418 680 276 153 179 166 140 105
26 85 220 528 403 449 619 270 147 166 169 137 111
27 84 260 580 402 543 659 242 154 154 164 136 121
28 84 310 753 393 673 695 226 178 145 159 135 133
29 83 491 889 393 576 641 224 202 141 153 136 136
30 85   817 394 564 556 258 172 144 151 136 145
31 88   763   530   296 158   162   138