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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 07385700 Bayou Teche at Keystone L&D nr St. Martinville, LA


St. Martin Parish, Louisiana
Hydrologic Unit Code 08080102
Latitude  30°04'15", Longitude  91°49'45" NAD27
Gage datum -2.12 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 1959-10-01 -> 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
1 626 669 648 500 520 431 384 354 385 356 478 453
2 614 674 697 496 515 419 371 364 414 352 481 444
3 624 677 703 483 516 405 370 370 415 355 469 450
4 634 693 669 484 523 395 360 367 428 343 450 471
5 647 694 638 487 509 402 350 356 453 352 458 470
6 648 698 624 491 495 474 372 351 465 346 442 480
7 672 674 610 501 483 465 364 346 445 341 442 491
8 693 625 588 528 485 437 350 339 429 341 450 507
9 693 596 583 502 484 410 344 331 409 350 423 502
10 714 600 573 482 511 408 329 347 410 360 401 486
11 715 624 582 484 506 415 331 345 424 360 387 487
12 701 687 587 477 526 399 325 336 443 364 379 490
13 682 680 598 544 532 401 331 330 457 379 376 502
14 670 670 593 563 500 407 382 328 453 386 382 514
15 646 687 582 581 508 397 364 327 429 377 404 539
16 623 706 587 567 526 396 348 328 425 385 400 540
17 621 675 588 548 514 388 351 322 426 383 383 540
18 626 681 580 551 509 384 366 320 411 379 406 563
19 654 659 573 545 488 367 363 327 394 371 412 554
20 699 633 550 516 481 371 360 327 398 349 408 551
21 698 638 536 574 480 363 361 325 397 345 406 539
22 692 661 507 566 500 359 363 325 393 368 406 530
23 695 651 502 539 484 363 363 334 389 392 410 538
24 687 650 520 524 474 377 361 322 395 382 411 564
25 709 649 545 506 461 390 364 332 371 385 421 557
26 712 648 529 512 454 386 366 355 361 402 425 551
27 734 650 510 502 430 374 377 371 368 425 445 555
28 721 642 520 507 438 392 384 381 369 439 449 567
29 701 555 521 498 438 389 364 406 360 435 439 575
30 693   526 515 441 378 360 389 363 443 448 601
31 668   512   436   355 368   452   611