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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 -> 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
1 397 503 555 581 353 202 114 186 138 195 166 281
2 407 495 552 579 359 203 103 178 178 207 163 280
3 416 486 555 561 356 220 96 165 172 192 161 270
4 425 485 565 527 341 234 97 191 175 165 168 255
5 435 508 569 497 321 247 112 209 191 147 171 251
6 430 537 582 480 308 239 119 225 193 151 175 263
7 436 563 613 476 306 227 125 238 211 217 187 275
8 442 568 649 483 312 238 123 261 211 289 201 278
9 434 558 663 495 308 267 119 222 235 284 201 278
10 435 548 656 486 300 240 129 180 236 269 201 292
11 438 536 641 469 282 220 135 159 231 236 195 314
12 431 535 626 458 265 195 149 169 247 206 203 333
13 428 537 609 458 254 180 171 186 252 182 250 350
14 432 535 602 466 234 152 158 187 217 159 284 360
15 448 535 582 452 221 133 160 187 179 137 279 369
16 472 548 560 452 220 122 166 226 227 118 271 382
17 481 558 552 467 214 114 186 207 279 110 271 389
18 480 569 557 452 205 110 194 194 304 122 257 389
19 479 584 575 426 194 108 194 192 328 128 240 393
20 483 593 597 406 206 116 179 198 311 125 227 384
21 485 576 606 383 214 121 166 179 274 145 220 373
22 484 554 598 374 207 122 153 163 247 168 221 363
23 493 547 581 363 202 118 155 142 236 165 229 357
24 497 550 562 357 201 113 151 131 223 168 236 352
25 495 559 553 347 195 110 150 124 213 172 237 358
26 490 559 551 329 189 110 143 129 207 164 248 374
27 483 561 545 323 191 108 129 144 226 152 259 369
28 491 561 547 323 189 103 127 148 261 153 265 361
29 512 591 546 322 180 105 132 159 219 168 269 366
30 515   555 335 173 117 149 141 184 174 273 382
31 510   567   187   174 127   172   391