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USGS Daily Statistics for West Virginia

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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 -> 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
1 277 260 377 404 298 301 163 160 163 162 139 218
2 296 287 364 443 274 257 151 133 139 149 137 275
3 269 295 351 407 274 293 164 160 109 152 145 197
4 255 324 402 381 319 313 165 187 106 128 154 250
5 248 346 540 439 352 269 156 145 104 123 155 258
6 245 347 442 374 402 259 154 135 145 140 145 211
7 228 347 462 353 361 217 147 215 232 125 162 228
8 230 322 399 350 341 199 145 160 137 114 209 246
9 268 262 383 329 306 185 150 162 147 182 198 261
10 282 269 384 352 290 197 153 130 172 208 144 254
11 246 259 391 339 272 204 151 125 133 165 148 341
12 237 301 383 335 335 199 139 138 125 144 189 307
13 238 358 445 413 310 238 143 203 148 184 235 269
14 240 409 485 400 291 271 142 150 138 177 195 264
15 264 384 496 398 269 198 144 133 128 127 161 257
16 275 296 414 422 387 187 138 121 114 140 165 337
17 241 304 415 456 483 188 130 122 131 119 174 281
18 219 314 374 330 385 187 141 177 151 140 157 248
19 284 345 414 295 443 176 137 162 150 182 151 233
20 457 357 503 346 325 175 139 134 131 140 184 206
21 275 339 557 360 327 195 176 140 127 145 176 215
22 276 340 560 443 269 341 145 151 126 138 215 250
23 255 368 454 323 257 328 166 125 152 155 202 267
24 338 435 478 321 265 250 143 117 146 160 165 244
25 382 449 409 330 256 178 138 109 189 154 199 277
26 352 439 386 331 258 172 127 106 223 177 200 257
27 305 367 389 384 230 185 122 114 164 142 173 275
28 345 336 396 404 247 237 122 104 207 138 230 222
29 323 338 540 345 250 169 168 105 236 158 269 233
30 261   447 305 238 202 135 101 175 205 267 254
31 285   409   265   166 117   168   255