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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 06903700 South Fork Chariton River near Promise City, IA


Wayne County, Iowa
Hydrologic Unit Code 10280201
Latitude  40°48'01.6", Longitude  93°11'33.67" NAD83
Drainage area 168  square miles
Gage datum 913.32 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 1967-10-01 -> 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 34 75 115 124 178 191 43 33 151 45 56 91
2 24 77 152 150 225 281 43 19 91 52 91 78
3 32 57 204 148 230 250 47 27 29 116 84 37
4 29 56 234 120 147 298 571 105 13 50 37 43
5 33 49 227 137 180 227 471 40 47 47 25 90
6 38 40 91 106 152 205 232 54 62 40 58 71
7 43 42 111 62 513 108 85 56 24 47 30 35
8 30 36 183 184 338 319 166 107 26 133 21 88
9 21 43 171 177 222 234 124 31 42 317 26 38
10 17 40 293 301 186 152 89 33 110 215 47 33
11 17 46 262 284 293 87 165 45 20 121 113 44
12 16 45 198 250 221 127 211 33 38 122 84 45
13 16 63 215 180 353 154 111 58 147 69 58 77
14 15 61 156 226 300 294 95 86 173 104 43 190
15 15 51 161 223 175 299 112 67 673 44 24 80
16 48 59 163 269 207 154 253 108 277 29 23 43
17 61 87 132 218 259 150 106 101 184 56 78 35
18 33 150 165 648 141 92 70 31 140 110 56 33
19 30 153 246 409 104 107 189 17 120 64 47 30
20 34 183 186 237 93 135 387 28 119 33 76 39
21 45 207 109 198 124 133 192 32 79 22 49 42
22 33 135 121 135 151 91 112 30 198 72 24 43
23 54 111 164 218 217 107 82 85 101 145 27 43
24 77 160 218 208 249 124 159 324 129 141 28 83
25 42 250 197 353 304 304 302 95 89 52 38 107
26 56 151 117 169 331 263 241 125 72 42 38 56
27 70 147 149 310 363 280 92 304 47 39 77 111
28 38 89 133 179 271 154 218 198 48 41 81 103
29 43 45 107 197 442 95 327 48 168 69 67 67
30 36   137 229 212 65 159 76 133 135 90 55
31 34   261   273   58 68   91   39