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USGS Surface-Water Daily Statistics for Oklahoma

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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 07328100 Washita River at Alex, OK


Grady County, Oklahoma
Hydrologic Unit Code 11130303
Latitude  34°55'33", Longitude  97°46'25" NAD27
Drainage area 4,768  square miles
Contributing drainage area 4,756  square miles
Gage datum 990.48 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 1964-10-01 -> 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
1 565 519 495 731 1,020 1,870 1,010 390 504 405 553 352
2 490 481 473 692 1,140 1,900 1,030 415 460 389 508 345
3 456 467 476 673 1,260 1,780 932 403 461 465 482 338
4 524 448 587 685 1,140 1,650 896 423 423 373 470 350
5 509 444 533 632 1,120 1,930 808 408 388 342 445 334
6 456 432 543 599 1,140 1,830 748 411 379 347 452 321
7 433 429 570 579 1,250 1,750 720 399 373 385 480 320
8 421 434 568 589 1,270 1,820 700 416 376 411 458 328
9 404 413 550 567 1,420 1,780 692 379 375 458 470 357
10 412 408 519 758 1,410 1,740 706 410 368 479 417 387
11 393 409 631 780 1,390 1,490 732 412 341 493 410 388
12 386 410 654 851 1,390 1,520 709 378 319 517 372 412
13 368 396 711 849 1,440 1,520 682 365 341 526 368 416
14 362 387 746 935 1,310 1,470 649 353 393 519 357 475
15 356 425 669 854 1,360 1,390 590 339 415 486 380 464
16 356 449 715 841 1,300 1,400 539 318 414 450 374 475
17 367 465 744 934 1,240 1,350 525 319 408 374 424 442
18 378 445 738 1,040 1,210 1,340 515 295 480 405 423 408
19 379 426 795 983 1,150 1,260 499 501 510 465 455 380
20 390 441 1,000 956 1,450 1,170 433 645 527 698 512 518
21 397 499 980 831 1,430 1,150 410 703 534 862 475 499
22 388 508 878 806 1,440 1,050 386 781 610 818 465 454
23 381 514 736 777 1,470 999 419 655 632 1,000 447 448
24 390 524 713 742 1,770 1,060 419 547 634 921 450 450
25 400 531 714 846 1,780 1,040 428 446 624 666 455 419
26 390 511 702 930 1,550 1,120 440 394 580 601 418 448
27 384 491 714 902 1,640 1,320 482 423 623 612 401 644
28 391 483 684 802 1,750 1,190 457 460 533 617 396 514
29 416 370 700 867 1,700 1,300 449 467 529 540 378 489
30 430   714 1,030 1,800 1,100 450 492 464 517 357 476
31 439   838   1,890   420 522   562   528