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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 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 -> 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
1 452 524 493 850 726 1,400 507 1,190 681 749 578 462
2 446 510 429 957 633 1,240 625 1,080 525 877 503 596
3 440 488 408 907 784 1,200 731 805 487 793 604 591
4 442 566 399 747 926 1,240 898 581 494 667 703 474
5 436 674 399 631 968 1,050 932 475 489 573 725 452
6 451 764 389 504 897 1,090 815 458 478 598 624 476
7 514 893 419 512 920 1,160 844 425 487 777 510 648
8 522 908 519 544 814 1,230 871 402 620 824 482 752
9 490 649 524 715 678 1,260 884 415 685 823 567 900
10 471 529 500 733 757 1,090 966 389 661 609 774 986
11 468 494 518 708 805 1,020 1,040 443 811 456 821 1,000
12 447 501 494 551 892 1,030 1,130 585 959 476 759 803
13 525 541 739 438 916 820 1,130 469 1,220 610 704 586
14 513 666 767 448 781 606 1,110 344 1,210 628 633 518
15 518 681 888 484 847 575 970 314 1,040 579 505 516
16 523 542 881 492 1,130 517 634 308 871 670 434 461
17 640 480 954 519 1,280 586 477 332 720 713 407 455
18 782 543 1,100 535 1,460 733 466 489 770 766 395 461
19 841 522 1,070 598 1,630 680 509 643 829 820 382 442
20 923 460 646 682 1,580 592 445 729 844 807 383 437
21 701 490 510 848 1,480 708 446 776 841 626 489 469
22 612 528 548 836 1,470 714 548 914 640 494 645 462
23 542 559 715 704 1,160 631 662 1,340 528 465 718 473
24 502 695 852 687 1,010 608 698 1,690 513 469 741 474
25 518 663 750 779 1,020 596 766 1,680 502 467 594 451
26 716 524 610 740 970 536 912 1,750 576 574 449 465
27 926 645 503 628 935 582 1,070 1,650 651 551 513 567
28 936 683 468 719 1,030 575 1,150 1,410 595 596 470 537
29 934 600 481 772 1,460 571 1,090 967 537 806 428 483
30 716   558 758 1,530 545 1,090 808 604 882 431 449
31 570   680   1,500   1,170 793   710   432