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USGS 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 05486000 North River near Norwalk, IA


Warren County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°27'29.2", Longitude  93°39'17.9" NAD83
Drainage area 349  square miles
Gage datum 788.07 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 -> 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 97 80 192 359 459 358 341 102 167 69 137 87
2 91 103 217 360 399 322 350 94 150 98 152 94
3 83 123 257 317 368 321 350 121 108 96 148 85
4 80 111 305 328 342 292 324 114 72 111 126 77
5 77 116 312 292 318 480 306 114 65 102 106 81
6 74 100 284 284 309 413 322 128 64 87 92 84
7 65 90 237 257 358 414 227 172 81 82 91 80
8 63 85 230 219 431 397 216 173 91 95 82 70
9 58 85 243 226 418 495 203 125 91 111 77 62
10 54 96 275 245 412 584 191 90 127 110 94 59
11 55 100 321 289 491 636 255 70 255 121 90 58
12 64 99 375 311 431 588 247 90 157 138 85 57
13 88 105 394 304 425 828 233 96 129 132 87 67
14 96 122 431 313 441 570 199 83 130 112 96 101
15 86 135 440 325 379 544 158 72 110 109 87 190
16 72 133 391 378 368 557 153 74 108 96 89 134
17 88 138 357 444 333 609 141 76 122 81 103 100
18 101 158 376 475 338 447 199 69 100 86 102 78
19 100 193 445 463 326 396 216 86 88 89 95 64
20 95 248 498 412 341 414 226 80 83 93 111 58
21 83 251 441 396 345 350 239 88 97 86 109 58
22 81 229 361 353 393 319 216 85 84 91 93 59
23 80 223 328 331 383 369 155 78 78 107 83 70
24 68 216 297 336 389 344 139 86 78 131 77 95
25 64 190 290 379 470 324 127 82 100 130 79 104
26 64 161 282 356 605 375 124 190 107 113 80 84
27 67 166 288 370 576 396 143 184 112 86 88 88
28 69 197 275 380 497 368 150 181 96 83 95 115
29 69 202 297 357 442 343 188 187 75 79 89 118
30 73   342 368 441 302 181 175 71 91 85 112
31 75   379   422   152 213   102   97