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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 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 96 80 194 362 461 360 340 89 167 69 138 87
2 90 104 219 362 401 324 350 88 150 98 153 95
3 83 124 259 316 370 323 351 117 108 96 149 86
4 80 112 307 327 344 294 324 110 72 111 125 77
5 77 117 311 292 319 484 307 111 65 102 105 81
6 74 101 281 284 311 416 320 126 64 87 91 84
7 65 90 234 258 360 417 225 159 81 82 91 81
8 64 85 227 219 434 400 212 147 91 95 82 70
9 59 85 241 226 421 499 198 98 91 111 77 62
10 54 97 273 246 415 589 189 81 127 110 94 59
11 55 101 320 291 495 642 240 64 255 121 91 58
12 64 100 374 313 434 594 219 86 157 138 85 58
13 88 106 395 306 428 837 202 92 129 132 88 67
14 96 124 433 315 445 575 177 80 130 112 96 102
15 86 136 442 327 382 549 152 70 110 109 86 192
16 72 134 393 381 371 562 149 72 108 96 88 135
17 89 139 359 448 336 615 138 74 122 81 103 100
18 101 159 378 479 341 451 197 67 100 86 102 79
19 101 195 448 465 328 399 215 86 88 89 95 64
20 96 251 502 414 327 418 220 80 83 93 110 59
21 84 254 444 397 336 353 217 88 97 86 108 58
22 82 232 363 354 391 322 192 85 84 91 92 59
23 80 226 330 332 383 373 142 78 78 107 82 70
24 69 218 299 337 390 346 132 86 78 131 76 96
25 64 191 292 380 472 320 117 82 100 130 78 105
26 65 162 284 354 609 357 117 190 107 113 80 85
27 67 167 290 368 580 376 138 184 112 86 88 88
28 70 198 277 380 500 357 146 181 96 83 95 116
29 69 202 299 357 445 340 185 187 75 80 90 119
30 73   345 369 444 300 177 175 71 92 86 112
31 75   382   425   135 213   102   97