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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 05486000 North River near Norwalk, IA


Warren County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°27'28.5", Longitude  93°39'17.1" NAD27
Drainage area 349  square miles
Gage datum 788.45 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 1940-10-01 -> 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 99 82 193 371 467 365 349 87 173 72 140 90
2 93 106 222 371 406 327 350 87 156 103 157 97
3 85 127 264 324 368 327 336 118 113 101 153 88
4 77 115 315 335 337 298 321 112 75 116 128 80
5 75 120 320 299 315 495 310 114 68 107 108 84
6 75 103 287 289 308 411 325 129 66 91 93 87
7 66 92 237 262 355 401 227 163 85 86 93 83
8 65 86 232 223 424 380 210 151 95 99 84 72
9 60 85 247 230 420 482 195 101 95 117 79 64
10 55 97 280 252 417 594 189 83 133 115 97 61
11 56 101 328 298 501 654 243 65 267 127 91 59
12 66 101 385 322 440 606 222 88 164 144 84 59
13 91 108 407 314 433 860 205 95 135 139 87 69
14 99 126 445 324 449 589 180 82 136 117 97 105
15 88 139 455 336 386 563 154 69 116 114 88 198
16 74 137 404 392 376 577 152 70 113 101 90 139
17 91 142 368 461 340 632 141 75 127 84 105 103
18 104 163 387 492 346 462 202 68 104 90 104 81
19 103 200 460 478 333 409 221 88 92 93 97 66
20 98 258 514 424 330 428 226 83 87 98 113 60
21 86 261 454 391 335 361 224 92 102 90 111 60
22 84 238 371 350 380 330 197 89 88 95 95 61
23 82 232 335 330 376 383 145 82 82 112 84 73
24 70 225 300 329 393 356 135 90 82 137 78 99
25 66 196 295 379 478 328 120 85 104 133 81 108
26 66 166 288 356 619 362 120 199 112 115 82 87
27 69 166 292 372 587 383 142 193 117 89 91 91
28 71 188 280 382 507 365 151 190 100 84 98 119
29 70 212 305 359 452 347 188 193 79 77 92 122
30 75   352 372 452 306 178 181 74 90 89 115
31 77   392   433   132 221   103   100