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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 14209250 OAK GROVE FORK AT RIPPLEBROOK CAMPGROUND, OR


Clackamas County, Oregon
Hydrologic Unit Code 17090011
Latitude  45°04'47.33", Longitude 122°02'34.29" NAD83
Drainage area 141  square miles
Gage datum 1,420 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 2010-10-01 -> 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
1 156 234 192 276 275 172 135 121 101 116 117 130
2 142 229 200 265 261 173 134 121 103 115 117 157
3 157 220 216 245 262 180 132 120 103 115 117 139
4 173 209 210 243 267 174 131 119 103 115 134 143
5 156 213 216 252 282 173 131 119 102 115 159 151
6 176 230 246 253 317 180 133 119 103 115 131 142
7 188 227 216 283 355 170 133 119 102 124 152 149
8 178 192 206 331 331 164 130 119 108 116 160 141
9 174 185 237 306 305 159 128 119 117 122 150 146
10 162 180 270 276 271 171 128 120 117 118 149 182
11 159 164 271 286 249 187 128 119 117 118 154 169
12 189 161 235 269 234 179 128 119 117 119 158 168
13 244 163 234 257 227 173 127 116 119 129 156 182
14 236 209 240 243 246 172 125 117 121 125 152 176
15 225 243 261 238 255 168 125 117 132 123 153 152
16 348 248 285 241 253 163 125 118 133 121 152 135
17 338 219 262 249 243 164 124 118 133 119 151 141
18 326 220 247 253 240 173 123 118 123 120 155 169
19 327 226 238 233 236 165 122 118 127 118 160 157
20 297 202 233 254 235 168 123 117 137 125 186 213
21 289 204 228 256 220 149 124 117 136 119 164 263
22 268 216 223 261 214 145 123 116 136 135 143 238
23 247 222 219 265 198 146 123 117 131 119 139 193
24 240 213 222 278 200 144 122 115 119 120 144 171
25 259 190 221 293 192 142 122 111 120 122 128 156
26 260 179 219 297 183 139 122 102 121 120 127 149
27 262 176 225 286 180 137 122 101 120 121 127 180
28 262 183 231 273 179 139 122 100 122 120 150 182
29 252 162 238 270 180 151 122 100 121 120 134 172
30 252   295 277 178 137 122 101 121 118 133 203
31 244   287   177   121 100   120   165