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USGS Daily Statistics for the Nation

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 02047783 BLACKWATER RIVER AT ROUTE 620 NEAR ZUNI, VA


Isle Of Wight County, Virginia
Hydrologic Unit Code 03010202
Latitude  36°54'23", Longitude  76°49'13" NAD27
Drainage area 420  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 2012-10-01 -> 2021-09-30)

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
1 793 750 857 713 648 357 456 287 223 317 181 375
2 726 755 807 694 732 339 528 284 232 350 189 367
3 717 733 738 677 688 335 536 283 229 339 209 352
4 760 749 716 625 605 345 536 388 201 321 227 331
5 787 828 743 555 510 386 521 502 175 311 232 322
6 781 861 799 492 456 504 524 444 169 307 225 325
7 726 869 817 452 455 564 535 393 161 287 217 335
8 662 953 797 466 464 652 492 362 147 244 210 349
9 606 939 745 496 452 959 475 416 285 549 201 368
10 556 877 677 508 406 1,340 408 449 548 830 218 428
11 525 813 609 483 351 1,420 354 395 474 713 256 517
12 546 895 552 449 311 1,360 415 344 406 567 367 536
13 594 947 501 418 287 1,120 533 333 426 510 648 508
14 647 986 491 395 269 867 624 316 416 503 723 495
15 687 976 523 398 251 659 585 302 359 467 694 547
16 678 984 552 485 230 532 527 421 288 430 648 617
17 652 1,050 553 568 219 506 440 972 232 405 605 670
18 633 1,070 543 561 221 495 317 810 399 381 587 711
19 635 1,140 545 544 236 470 232 550 815 401 563 712
20 641 1,180 532 549 277 437 178 449 927 403 516 685
21 621 1,160 530 578 356 401 145 476 586 375 457 670
22 579 1,100 553 547 382 376 128 527 417 350 399 647
23 559 1,040 567 487 383 365 125 440 349 334 344 617
24 603 1,050 577 429 390 356 132 372 298 316 309 614
25 749 1,020 585 403 393 372 177 308 263 278 318 720
26 811 965 620 395 381 369 223 246 258 239 338 843
27 815 901 691 391 350 433 221 200 237 209 379 887
28 788 874 749 385 331 450 231 165 208 186 414 841
29 758 1,100 786 390 355 431 228 154 185 169 406 815
30 757   785 404 360 405 214 179 225 166 382 855
31 744   751   357   259 218   174   858