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USGS Daily Statistics for Texas

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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 79 - 80 years of record in, ft3/s   (Calculation Period 1938-10-01 -> 2019-09-30)

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
1 163 168 171 195 192 390 260 156 211 146 240 158
2 162 234 166 178 199 400 410 159 149 149 221 156
3 162 218 164 175 260 416 427 166 143 142 263 195
4 170 358 203 169 247 415 792 268 192 180 250 211
5 169 362 244 231 213 664 808 228 299 216 241 198
6 163 312 243 213 241 471 872 196 209 165 225 189
7 156 259 219 180 274 386 615 177 181 181 188 163
8 149 233 201 172 356 331 368 212 302 174 178 170
9 155 224 192 161 230 305 288 192 363 264 206 168
10 153 214 185 156 195 340 263 147 335 237 203 161
11 158 199 179 154 223 412 250 156 227 188 174 156
12 160 220 190 154 239 477 230 139 194 186 165 158
13 160 191 196 153 281 442 209 142 201 174 164 160
14 156 192 215 152 221 545 202 148 201 172 165 156
15 166 184 186 159 311 441 206 152 169 190 165 168
16 170 176 182 187 292 385 352 164 189 230 222 160
17 163 170 180 195 273 391 615 420 242 282 242 153
18 266 191 169 289 290 382 469 292 223 633 274 149
19 247 184 176 286 295 343 321 245 173 437 236 152
20 219 196 180 252 265 288 260 197 176 265 214 189
21 235 198 181 213 221 281 276 200 222 214 198 207
22 183 223 169 191 255 275 279 182 236 249 242 295
23 173 210 170 185 273 372 264 161 239 279 272 252
24 171 206 171 227 298 352 259 164 198 355 225 177
25 164 211 168 298 352 327 260 162 177 410 194 159
26 162 198 173 253 330 400 239 151 191 277 180 155
27 203 190 176 236 309 275 231 153 512 235 176 159
28 168 181 188 231 310 258 191 157 273 205 180 162
29 165 170 198 221 269 353 173 318 169 226 170 158
30 162   198 188 357 327 165 243 155 267 160 162
31 159   225   473   162 238   263   160