Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Iowa

Click to hide state-specific text

Boating safety tips are available from the U.S. Coast Guard.

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 05455100 Old Mans Creek near Iowa City, IA


Johnson County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°36'23.06", Longitude  91°36'56.6" NAD83
Drainage area 201  square miles
Gage datum 637.32 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 2023-09-30)

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 67 55 137 288 226 238 291 102 82 55 114 80
2 59 59 162 213 179 204 272 67 78 61 106 78
3 57 75 197 168 189 208 172 82 68 70 101 67
4 83 98 237 152 243 203 124 99 63 57 106 63
5 57 104 277 149 274 218 199 86 89 96 99 60
6 59 99 192 156 194 207 313 73 115 148 80 59
7 74 100 169 155 220 173 215 57 99 146 71 57
8 77 93 245 145 235 199 180 49 78 144 64 55
9 58 108 335 160 210 228 185 66 80 107 61 54
10 51 119 445 161 309 250 188 121 110 118 75 52
11 50 108 434 193 350 205 193 98 94 80 66 51
12 63 89 359 177 256 214 139 112 81 56 66 55
13 96 82 402 164 248 274 141 120 102 54 76 54
14 106 81 369 166 219 282 237 126 113 59 75 87
15 75 81 302 170 182 289 158 111 102 60 70 100
16 77 87 221 162 194 242 133 118 64 50 104 94
17 77 114 177 182 279 271 103 140 61 73 109 69
18 64 131 192 330 294 245 103 121 56 150 116 61
19 74 141 252 298 272 243 128 82 54 110 84 56
20 96 236 345 265 236 283 130 114 56 70 91 55
21 69 262 306 245 194 278 123 184 48 58 82 58
22 62 189 273 182 174 268 136 129 49 60 90 61
23 61 190 256 183 198 294 119 104 73 99 92 64
24 84 181 220 168 217 320 140 95 80 88 79 60
25 72 216 188 197 258 276 135 106 102 80 78 85
26 56 186 189 228 281 189 125 128 123 84 84 87
27 52 181 185 233 296 169 128 145 128 77 104 90
28 49 145 198 215 309 171 100 197 63 72 94 124
29 54 109 197 211 454 144 103 202 57 82 80 103
30 64   243 219 351 235 108 127 63 128 74 79
31 63   324   263   133 74   113   79