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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
1 282 260 382 405 298 303 164 161 160 160 141 222
2 301 288 366 439 275 259 151 134 137 147 139 281
3 273 297 350 390 275 294 165 161 108 151 147 200
4 259 328 405 365 321 315 165 188 106 127 156 255
5 252 350 542 434 353 271 156 145 104 122 158 263
6 249 351 443 371 404 260 155 136 145 140 147 215
7 231 350 463 351 363 218 147 216 233 125 164 232
8 232 325 400 349 343 200 145 153 138 114 213 251
9 266 264 381 328 307 185 151 123 147 183 201 266
10 260 272 363 352 290 198 154 117 173 211 146 258
11 242 261 385 339 272 204 151 121 133 167 150 345
12 236 305 380 328 335 200 139 136 125 145 192 305
13 236 351 445 410 310 239 144 203 149 186 239 271
14 239 397 486 399 292 273 143 149 138 179 199 268
15 265 383 497 397 270 199 144 132 129 128 164 261
16 278 294 415 422 389 188 139 120 114 141 168 343
17 243 302 416 457 486 189 131 121 131 121 177 285
18 221 315 375 330 388 188 141 177 152 142 159 243
19 288 347 416 294 446 176 137 161 148 185 153 232
20 466 360 506 346 326 176 140 133 131 141 187 207
21 279 342 561 361 329 196 177 140 127 147 179 217
22 280 344 564 445 270 344 146 151 126 140 215 254
23 259 372 456 324 258 330 167 125 152 157 203 272
24 343 441 478 322 266 252 144 117 146 162 167 248
25 388 455 410 332 257 179 139 109 190 156 202 282
26 356 446 388 332 258 173 128 106 224 179 203 261
27 309 371 390 386 229 186 122 113 164 144 176 280
28 334 340 398 406 247 239 123 103 208 140 235 224
29 310 342 544 347 250 170 169 105 237 161 274 236
30 258   450 306 239 203 136 98 176 209 272 258
31 285   411   266   167 115   170   259