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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 02073000 SMITH RIVER AT MARTINSVILLE, VA


Henry County, Virginia
Hydrologic Unit Code 03010103
Latitude  36°39'40", Longitude  79°52'51" NAD27
Drainage area 379  square miles
Gage datum 656.09 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 1950-10-01 -> 2025-09-30)

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
1 516 481 619 641 552 527 401 394 399 490 374 447
2 482 541 606 634 549 487 418 398 356 469 359 414
3 507 539 589 622 528 497 444 391 377 490 368 439
4 530 552 668 605 574 530 411 378 372 442 394 491
5 531 502 645 650 586 589 496 386 408 416 359 497
6 507 581 639 607 610 484 499 387 533 383 410 438
7 525 603 576 596 576 519 479 374 495 337 407 496
8 555 509 546 601 577 522 437 403 555 360 410 484
9 576 475 531 667 619 555 416 415 437 415 403 461
10 510 505 546 690 556 500 414 406 433 376 409 448
11 523 548 531 617 518 529 419 383 402 476 411 473
12 512 520 521 649 512 536 465 435 387 392 525 468
13 500 543 516 709 503 546 425 419 362 393 428 449
14 527 503 563 638 531 463 431 395 395 356 393 485
15 580 482 514 667 514 447 428 416 350 416 388 483
16 557 542 528 744 517 487 419 415 414 379 430 473
17 526 542 608 625 489 514 405 431 543 384 413 446
18 538 519 579 629 499 465 438 544 408 378 409 450
19 522 520 614 623 524 490 420 432 401 397 446 422
20 495 460 632 601 584 455 414 448 413 358 434 427
21 525 507 612 559 590 550 399 434 378 344 370 511
22 501 543 602 551 603 493 393 413 475 379 363 482
23 488 619 605 595 582 493 408 407 433 420 357 462
24 516 610 648 690 568 475 382 407 403 397 376 462
25 645 589 589 641 585 499 418 385 396 391 431 393
26 569 568 600 661 543 514 414 378 441 419 408 411
27 581 544 580 642 583 481 414 384 440 376 403 496
28 617 546 640 660 592 449 424 408 443 388 387 502
29 523 489 660 628 545 453 404 385 419 415 421 522
30 479   656 597 532 411 399 387 556 393 411 486
31 476   640   515   394 465   384   507