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USGS Daily Statistics for 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 02047500 BLACKWATER RIVER NEAR DENDRON, VA


Surry County, Virginia
Hydrologic Unit Code 03010202
Latitude  37°01'30", Longitude  76°52'30" NAD27
Drainage area 290  square miles
Gage datum 0.00 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 1941-10-01 -> 2020-09-30)

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
1 398 506 566 587 348 210 114 192 137 183 164 283
2 409 497 563 589 342 212 103 181 179 198 159 283
3 415 487 567 570 343 229 95 166 175 187 157 273
4 416 487 578 537 336 244 95 192 180 163 164 257
5 420 512 583 508 318 258 111 208 197 146 168 252
6 418 543 598 490 306 249 119 222 199 151 172 263
7 426 569 632 487 306 235 127 235 218 222 184 274
8 434 575 670 495 315 247 126 250 218 298 200 277
9 428 565 684 508 313 276 119 202 241 294 201 278
10 432 555 677 499 306 249 126 161 239 279 201 291
11 438 543 661 482 288 214 130 143 231 244 196 314
12 433 542 645 471 272 180 145 157 235 209 200 335
13 431 517 624 471 262 173 166 178 238 178 241 354
14 437 516 613 480 242 149 150 181 210 152 270 365
15 454 517 594 467 228 131 155 180 177 131 270 373
16 479 530 572 467 227 122 164 183 229 114 264 384
17 487 540 566 482 222 114 186 166 284 104 263 385
18 484 552 572 467 213 109 197 167 289 108 250 379
19 482 566 592 439 202 107 200 165 290 113 235 383
20 487 574 614 416 214 115 185 172 286 114 225 375
21 489 562 622 391 224 121 171 154 257 137 219 366
22 489 546 612 382 216 123 156 140 235 164 221 357
23 499 543 592 371 210 118 158 122 229 163 231 353
24 504 550 569 366 209 113 153 114 219 167 238 349
25 503 563 554 355 203 108 151 110 212 172 240 346
26 496 566 543 337 196 107 145 117 206 165 252 351
27 486 569 532 329 199 106 130 132 227 154 264 351
28 493 571 531 328 196 101 127 138 266 155 270 350
29 515 604 536 328 186 103 134 154 222 171 273 360
30 519   553 340 179 116 152 138 181 176 275 380
31 514   570   194   179 126   171   391