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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 08181500 Medina Rv at San Antonio, TX


Bexar County, Texas
Hydrologic Unit Code 12100302
Latitude  29°15'50", Longitude  98°29'26" NAD27
Drainage area 1,317  square miles
Contributing drainage area 1,317  square miles
Gage datum 439.03 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 1938-10-01 -> 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
1 158 164 166 188 217 373 261 151 202 146 230 154
2 157 226 161 172 232 381 394 155 144 145 212 152
3 158 216 160 169 258 399 409 163 138 138 252 188
4 164 347 196 165 253 410 751 259 185 173 240 203
5 163 348 235 225 213 636 767 226 285 207 231 190
6 158 299 234 207 235 449 869 194 201 159 216 183
7 152 250 211 175 264 368 632 173 174 174 181 158
8 145 225 194 167 339 315 358 205 288 167 172 165
9 150 216 186 156 222 291 286 185 347 252 198 163
10 148 206 179 153 190 329 280 142 322 227 196 156
11 154 193 173 150 216 399 253 151 219 180 168 151
12 156 213 184 150 232 450 225 135 187 179 160 153
13 155 186 189 148 286 418 204 138 193 167 158 155
14 151 186 207 147 221 512 197 143 193 198 159 151
15 161 179 180 154 300 415 200 147 163 194 159 163
16 164 171 176 181 282 364 337 158 182 228 214 155
17 158 166 175 188 266 371 584 399 231 271 232 148
18 255 186 164 276 278 362 446 279 214 601 262 145
19 237 178 171 273 282 325 307 234 166 416 227 148
20 211 189 175 242 261 274 249 189 169 254 205 182
21 225 192 176 220 218 267 264 192 213 205 190 199
22 187 215 165 189 246 262 267 175 226 238 233 283
23 177 202 166 182 262 352 256 155 228 267 260 241
24 179 199 166 223 285 334 249 158 189 338 216 171
25 178 203 163 287 345 319 249 156 170 397 187 154
26 162 191 168 243 324 379 230 146 183 267 175 151
27 198 184 171 227 297 263 222 148 485 227 171 155
28 165 175 182 223 303 248 185 151 261 198 175 157
29 161 162 192 234 260 335 168 303 163 218 167 154
30 158   191 195 342 317 160 232 150 256 156 157
31 155   217   448   157 228   252   155