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USGS Daily Statistics for Maryland

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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 01616500 OPEQUON CREEK NEAR MARTINSBURG, WV


Berkeley County, West Virginia
Hydrologic Unit Code 02070004
Latitude  39°25'25", Longitude  77°56'20" NAD27
Drainage area 272  square miles
Gage datum 354.67 feet above NAVD88
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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 1946-10-01 -> 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
1 280 261 381 404 298 303 164 161 160 160 140 220
2 298 289 367 443 275 259 151 134 137 147 138 278
3 271 297 354 407 275 294 165 161 108 151 146 199
4 257 327 406 381 321 315 165 188 106 127 155 252
5 250 349 540 439 353 271 156 145 104 122 156 261
6 247 350 442 374 404 260 155 136 145 140 146 213
7 230 348 462 353 363 218 147 216 233 125 163 230
8 232 323 399 349 343 200 145 153 138 114 211 248
9 270 263 383 328 307 185 151 123 147 183 199 264
10 285 271 384 352 290 198 154 117 173 209 145 256
11 248 260 391 339 272 204 151 121 133 166 149 344
12 239 304 383 328 335 200 139 136 125 144 191 305
13 240 361 445 410 310 239 144 203 149 185 237 270
14 242 411 485 399 292 273 143 149 138 178 197 266
15 266 386 496 397 270 199 144 132 129 127 162 259
16 278 296 414 422 389 188 139 120 114 140 166 340
17 243 304 415 457 486 189 131 121 131 120 176 283
18 221 315 374 330 388 188 141 177 152 141 158 249
19 287 347 414 294 446 176 137 161 148 183 152 235
20 462 360 503 346 326 176 140 133 131 140 185 208
21 278 341 557 361 329 196 177 140 127 146 177 216
22 279 343 560 445 270 344 146 151 126 139 217 252
23 258 372 454 324 258 330 167 125 152 155 204 270
24 341 439 478 322 266 252 144 117 146 161 166 246
25 386 453 409 332 257 179 139 109 190 155 201 280
26 355 443 386 332 258 173 128 106 224 178 202 259
27 308 370 389 386 229 186 122 113 164 143 175 278
28 349 339 396 406 247 239 123 103 208 139 233 224
29 326 338 540 347 250 170 169 105 237 159 272 235
30 263   447 306 239 203 136 98 176 207 269 256
31 287   409   266   167 115   169   257