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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 02049500 BLACKWATER RIVER NEAR FRANKLIN, VA


Southampton County, Virginia
Hydrologic Unit Code 03010202
Latitude  36°45'45", Longitude  76°53'55" NAD27
Drainage area 613  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 1943-10-01 -> 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
1 786 1,030 1,160 1,100 675 397 268 356 363 437 313 503
2 801 1,020 1,160 1,090 686 394 257 379 394 445 329 505
3 819 1,020 1,170 1,070 691 402 271 385 394 433 337 504
4 850 1,040 1,190 1,050 677 422 278 400 386 408 343 504
5 870 1,080 1,200 1,020 664 459 274 421 375 383 340 507
6 871 1,120 1,200 999 663 497 262 432 381 370 331 516
7 868 1,140 1,230 986 674 522 251 439 405 372 322 516
8 871 1,160 1,250 981 668 542 249 423 399 475 333 516
9 872 1,160 1,270 988 653 543 249 408 398 643 342 530
10 876 1,150 1,270 989 626 550 253 407 416 686 364 561
11 884 1,130 1,270 967 603 535 258 387 434 653 379 600
12 886 1,120 1,240 944 586 518 256 358 485 580 402 641
13 886 1,130 1,200 920 555 505 274 340 526 497 492 670
14 909 1,150 1,170 894 521 471 305 332 532 430 546 691
15 934 1,160 1,170 872 494 425 339 361 511 374 562 720
16 959 1,160 1,140 893 479 393 360 417 597 326 550 756
17 977 1,180 1,120 907 456 375 389 453 637 289 530 778
18 985 1,200 1,120 892 431 341 380 485 654 287 503 785
19 998 1,220 1,120 862 421 313 367 495 685 284 476 789
20 1,030 1,220 1,130 827 413 287 348 462 687 279 458 789
21 1,050 1,200 1,140 794 414 272 334 421 641 280 446 783
22 1,070 1,180 1,140 766 416 262 322 384 592 288 448 772
23 1,080 1,170 1,130 751 417 267 306 370 537 293 459 767
24 1,090 1,160 1,110 731 422 272 292 369 497 317 467 766
25 1,100 1,170 1,100 706 433 269 297 359 468 324 469 775
26 1,110 1,160 1,090 690 439 272 307 335 437 317 475 782
27 1,100 1,160 1,080 688 436 270 316 317 426 309 481 792
28 1,090 1,160 1,080 689 426 265 334 331 430 299 484 792
29 1,080 1,140 1,090 685 413 283 362 373 422 297 483 778
30 1,070   1,110 672 408 284 362 389 419 300 491 776
31 1,050   1,110   409   356 370   302   775