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USGS Surface-Water Daily Statistics for Iowa

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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 05481000 Boone River near Webster City, IA


Hamilton County, Iowa
Hydrologic Unit Code 07100005
Latitude  42°25'55.1", Longitude  93°48'21.4" NAD83
Drainage area 844  square miles
Gage datum 989.38 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 1940-10-01 -> 2024-09-30)

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
1 184 104 489 1,230 983 1,100 1,110 321 312 307 259 200
2 173 110 474 1,140 994 1,020 1,040 270 298 316 280 202
3 160 110 510 1,060 1,010 972 908 237 272 311 285 188
4 144 110 532 1,010 1,010 967 785 222 226 314 273 178
5 139 133 547 999 1,050 1,010 716 210 254 335 259 169
6 154 140 601 1,040 1,050 963 726 249 237 337 253 169
7 146 132 633 1,040 1,020 948 687 229 217 316 250 172
8 136 120 581 998 959 1,060 666 215 229 330 243 171
9 127 120 548 924 949 1,080 745 199 238 371 222 161
10 120 149 553 855 898 1,230 792 223 236 392 213 155
11 114 164 589 821 865 1,150 809 300 230 417 207 154
12 106 160 695 873 877 1,110 745 234 205 430 210 156
13 103 168 824 906 891 1,120 654 218 197 393 214 177
14 103 181 935 965 924 1,200 588 222 185 353 219 218
15 94 215 968 1,010 915 1,270 582 244 173 325 219 239
16 93 235 1,000 1,010 904 1,230 510 309 184 302 220 226
17 99 279 1,000 970 910 1,250 538 273 202 280 226 210
18 101 335 1,030 903 941 1,330 551 244 202 302 227 201
19 101 373 1,040 859 967 1,370 519 229 222 305 224 185
20 106 447 1,040 868 987 1,380 522 319 278 289 223 172
21 110 483 979 899 970 1,450 459 382 370 283 233 160
22 108 489 944 932 981 1,410 487 346 404 285 235 150
23 107 476 924 927 1,030 1,350 519 386 449 295 232 143
24 105 462 930 913 1,100 1,400 491 365 434 298 226 146
25 106 422 964 955 1,160 1,350 409 339 429 282 216 162
26 102 390 970 952 1,240 1,350 410 304 405 267 209 167
27 97 414 1,000 971 1,270 1,430 387 274 387 251 212 171
28 97 446 1,110 966 1,260 1,410 337 264 372 238 210 199
29 97 560 1,150 934 1,230 1,310 313 294 363 236 205 193
30 100   1,200 934 1,220 1,240 291 306 331 244 197 190
31 104   1,230   1,130   318 324   248   182