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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 05472500 North Skunk River near Sigourney, IA


Keokuk County, Iowa
Hydrologic Unit Code 07080106
Latitude  41°18'03.04", Longitude  92°12'16.64" NAD83
Drainage area 730  square miles
Gage datum 650.69 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 1945-10-01 -> 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
1 241 228 614 953 917 979 749 365 300 233 304 314
2 245 237 574 830 890 940 763 329 353 212 418 313
3 255 247 591 779 873 861 835 324 301 260 406 255
4 247 323 706 742 791 757 803 293 251 256 340 232
5 263 308 800 719 746 735 803 367 231 261 340 248
6 286 276 776 696 690 745 840 466 312 306 284 249
7 371 265 765 622 789 802 880 410 344 308 244 244
8 360 293 805 600 857 799 714 335 316 260 219 246
9 300 301 766 562 876 795 640 374 320 284 209 219
10 246 315 832 559 896 796 645 439 366 329 247 204
11 211 319 861 649 921 788 645 421 328 350 247 197
12 205 294 919 705 895 914 628 447 267 379 256 202
13 215 264 1,090 701 950 1,040 620 399 293 364 274 216
14 238 271 1,080 699 906 1,160 539 429 315 339 292 270
15 293 301 1,100 686 798 1,360 461 425 331 297 265 303
16 254 319 1,080 704 804 1,220 449 383 298 263 294 341
17 279 352 978 712 885 1,060 451 351 277 258 311 320
18 285 431 951 803 915 1,000 471 316 265 300 308 280
19 274 494 1,010 875 987 963 531 290 315 298 302 252
20 282 606 1,060 960 962 1,070 580 278 374 279 287 215
21 293 683 1,010 1,020 921 1,060 593 270 407 236 300 214
22 279 728 1,000 955 781 990 513 229 341 218 276 216
23 301 668 934 880 804 1,020 440 196 327 269 272 218
24 277 661 929 889 968 962 428 227 355 287 246 243
25 257 664 809 871 938 899 434 255 375 314 229 265
26 240 622 700 816 1,010 846 465 264 342 298 250 255
27 248 582 686 865 1,130 830 458 287 336 254 287 284
28 233 587 683 880 1,290 806 491 332 322 225 299 326
29 233 687 708 834 1,310 786 471 333 283 233 295 321
30 241   720 903 1,210 795 488 357 257 271 315 304
31 229   991   1,070   450 336   256   264