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USGS Daily Statistics for the Nation

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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 08188570 San Antonio Rv nr McFaddin, TX


Refugio County, Texas
Hydrologic Unit Code 12100303
Latitude  28°31'52.5", Longitude  97°02'33.7" NAD83
Drainage area 4,134  square miles
Contributing drainage area 4,134  square miles
Gage datum -0.38 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 2005-10-01 -> 2026-09-30)

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
1 452 524 493 850 708 1,410 496 1,140 654 718 563 462
2 446 510 429 957 618 1,270 609 1,030 506 840 490 596
3 440 488 408 907 761 1,240 709 776 470 760 585 591
4 442 566 399 747 895 1,280 866 562 476 640 678 474
5 436 674 399 631 935 1,050 898 460 503 551 698 452
6 451 764 389 504 867 1,060 786 444 518 575 602 476
7 514 893 419 512 888 1,120 814 412 499 745 494 648
8 522 908 519 544 786 1,190 842 392 614 789 468 752
9 490 649 524 715 656 1,210 858 404 669 789 548 900
10 471 529 500 708 731 1,050 947 379 641 585 744 986
11 468 494 518 683 779 975 1,020 430 781 440 789 1,000
12 447 501 494 534 861 1,000 1,110 564 940 459 729 803
13 525 541 739 426 882 838 1,100 454 1,190 586 676 586
14 513 666 767 435 753 688 1,080 334 1,170 603 609 518
15 518 681 888 468 815 696 937 307 998 556 488 516
16 523 542 881 476 1,080 672 615 300 838 644 421 461
17 640 480 954 501 1,220 787 465 323 695 684 395 455
18 782 543 1,100 517 1,400 948 454 472 742 734 395 461
19 841 522 1,070 576 1,560 804 495 618 797 786 382 442
20 923 460 646 656 1,510 648 433 700 810 773 383 437
21 701 490 510 814 1,420 726 434 744 807 601 489 469
22 612 528 548 803 1,400 715 531 876 616 477 645 462
23 542 559 715 677 1,110 629 639 1,280 510 450 718 473
24 502 695 852 667 970 603 672 1,610 495 454 741 474
25 518 663 750 774 977 589 737 1,600 485 452 594 451
26 716 524 610 734 930 531 877 1,670 555 555 449 465
27 926 645 503 638 898 572 1,020 1,580 626 532 513 567
28 936 683 468 731 984 563 1,100 1,350 573 575 470 537
29 934 600 481 763 1,400 557 1,040 927 517 778 428 483
30 716   558 742 1,470 533 1,050 775 581 865 431 449
31 570   680   1,470   1,120 760   694   432