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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 05455100 Old Mans Creek near Iowa City, IA


Johnson County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°36'23", Longitude  91°36'56" NAD27
Drainage area 201  square miles
Gage datum 637.49 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 1950-10-01 -> 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 68 57 135 294 229 245 300 106 84 57 115 82
2 60 60 163 216 181 209 281 69 81 63 108 80
3 58 77 201 168 187 214 176 85 70 73 103 68
4 85 101 242 152 238 208 127 103 64 59 108 64
5 59 107 284 149 276 224 204 90 91 100 100 61
6 60 101 193 156 194 211 323 76 118 153 80 60
7 76 103 170 154 222 174 222 59 102 152 71 59
8 79 96 250 145 234 203 186 51 81 150 65 56
9 60 111 344 161 209 233 191 68 83 111 62 55
10 52 120 459 163 314 256 194 125 114 122 76 52
11 51 109 448 196 357 210 198 101 98 82 66 51
12 65 89 369 179 260 219 141 116 83 57 65 56
13 99 81 414 166 252 282 144 124 106 55 76 55
14 110 80 379 168 221 290 244 131 117 60 76 89
15 77 81 310 172 184 298 162 115 106 61 70 102
16 79 87 225 164 196 248 136 122 67 51 106 96
17 79 116 180 185 285 279 105 145 63 75 112 71
18 66 133 195 339 301 252 106 125 58 155 119 63
19 75 143 254 306 278 250 131 85 55 113 86 57
20 98 242 352 271 241 292 134 118 58 72 93 57
21 70 270 313 249 198 287 127 191 49 60 83 59
22 64 193 278 183 177 276 140 134 51 62 91 62
23 62 195 252 176 202 304 122 108 76 102 94 66
24 86 186 217 165 222 331 145 98 83 91 81 61
25 74 223 187 197 265 280 139 108 106 69 80 88
26 57 192 189 231 288 191 128 129 128 81 86 89
27 53 164 186 236 304 173 132 150 132 77 107 93
28 50 136 200 218 317 175 104 204 66 72 96 127
29 55 109 199 214 468 147 107 209 59 80 81 106
30 66   247 222 361 242 112 131 65 128 76 81
31 64   331   270   139 76   114   81