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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 -> 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 96 80 194 362 461 360 342 85 167 70 138 87
2 90 104 219 362 401 324 344 86 151 100 153 95
3 83 124 259 316 370 323 330 116 109 98 149 86
4 80 112 307 327 344 295 315 110 72 112 125 77
5 77 117 311 292 319 487 304 112 66 103 105 81
6 74 101 281 284 311 417 319 127 64 88 91 84
7 65 90 234 258 360 420 223 160 82 83 91 81
8 64 85 227 219 434 403 207 148 91 96 82 70
9 59 85 241 226 421 503 193 99 92 112 77 62
10 54 97 273 246 415 594 187 81 128 111 94 59
11 55 101 320 291 495 648 239 64 258 123 91 58
12 64 100 374 313 434 599 219 86 158 139 85 58
13 88 106 395 306 428 846 202 93 130 134 88 67
14 96 124 433 315 445 581 177 80 131 113 96 102
15 86 136 442 327 382 555 152 67 112 110 86 192
16 72 134 393 381 371 567 149 68 110 97 88 135
17 89 139 359 448 336 621 139 73 123 81 103 100
18 101 159 378 479 341 455 198 66 101 87 102 79
19 101 195 448 465 328 403 216 85 89 90 95 64
20 96 251 502 414 327 422 221 80 84 94 110 59
21 84 254 444 397 336 355 219 89 98 87 108 58
22 82 232 363 354 391 325 193 86 85 92 92 59
23 80 226 330 332 383 376 142 79 79 108 82 70
24 69 218 299 337 390 350 133 87 79 132 76 96
25 64 191 292 380 472 323 118 83 101 131 78 105
26 65 162 284 354 609 357 117 192 109 114 80 85
27 67 167 290 368 580 377 139 186 113 87 88 88
28 70 198 277 380 500 358 148 183 97 84 95 116
29 69 202 299 357 445 341 184 189 76 80 90 119
30 73   345 369 444 301 174 176 72 92 86 112
31 75   382   425   129 214   102   97