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Peak Streamflow for Texas

USGS 08377500 Rio Grande at Langtry, TX

Val Verde County, Texas
Hydrologic Unit Code 13040212
Latitude  2948'00", Longitude 10134'00" NAD27
Drainage area 81,429  square miles
Contributing drainage area 81,429  square miles
Gage datum 1,091.69 feet above sea level NGVD29
Water
Year
Date Gage
Height
(feet)
Stream-
flow
(cfs)
1900 Apr. 6, 1900   77,000
1901 Sep. 8, 1901   14,700
1902 Sep. 9, 1902   39,000
1903 Jun. 12, 1903   18,000
1904 Sep. 13, 1904   138,000
1905 Jun. 30, 1905   33,000
1906 Aug. 11, 1906   57,200
1907 Sep. 20, 1907   16,060
1908 Aug. 14, 1908   33,000
1909 Jul. 12, 1909   16,510
1910 Sep. 6, 1910   7,550
1911 May 16, 1911   43,000
1912 Sep. 19, 1912   28,500
1913 Sep. 10, 1913   11,810
1922 unknown 1922   204,0007
1924 Jun. 2, 1924   5,000
1925 May 29, 1925   38,500
1926 Aug. 25, 1926   24,500
1927 Jul. 2, 1927   25,600
1928 Aug. 9, 1928 19.40 46,400
1929 Sep. 12, 1929 11.15 22,000
1930 Aug. 16, 1930 6.15 9,700
1931 Oct. 7, 1930 7.98 14,400
1932 Sep. 29, 1932 25.67 64,070
1933 Oct. 5, 1932 29.27 77,610
1934 Oct. 14, 1933 8.70 14,630
1935 Sep. 4, 1935 46.70 149,000
1936 Sep. 24, 1936 16.98 32,600
1937 Jun. 4, 1937 14.03 25,900
1938 Sep. 26, 1938 24.78 57,300
1939 Aug. 9, 1939 9.32 15,700
Water
Year
Date Gage
Height
(feet)
Stream-
flow
(cfs)
1940 May 22, 1940 13.68 25,800
1941 May 2, 1941 14.48 35,200
1942 Sep. 12, 1942 24.93 58,900
1943 Oct. 1, 1942 44.25 20,600
1944 Sep. 17, 1944 17.35 33,300
1945 Jul. 11, 1945 15.90 31,600
1946 Oct. 7, 1945 16.04 31,900
1947 May 11, 1947 12.40 22,300
1948 Jul. 3, 1948 6.46 9,740
1949 Jun. 26, 1949 12.76 23,200
1950 Jul. 13, 1950 14.00 27,500
1951 May 24, 1951 10.44 18,000
1952 Jul. 16, 1952 12.70 18,600
1953 Sep. 3, 1953 6.14 8,060
1954 Jun. 27, 1954 49.87 169,000
1955 Sep. 25, 1955 18.68 39,100
1956 Oct. 7, 1955 7.58 9,710
1957 Oct. 18, 1956 18.45 34,400
1958 Sep. 29, 1958 30.47 56,900
1959 Oct. 6, 1958 28.85 54,100
1960 Aug. 27, 1960 14.98 24,100
1961 Jun. 17, 1961 16.75 28,2005
1962 Sep. 10, 1962 9.30 11,0005
1963 Jun. 7, 1963 11.23 16,0005
1964 Sep. 24, 1964 24.30 41,2005
1965 Jun. 12, 1965 37.52 87,9005
1966 Sep. 9, 1966 16.47 21,3005
1967 Aug. 11, 1967 29.55 56,4005
1968 Sep. 24, 1968 13.70 23,0006
1969 Sep. 15, 1969 12.67 14,7006
1970 Jun. 9, 1970 15.14 18,6006
1971 Jul. 27, 1971 11.09 12,7006
Peak Streamflow Qualification Codes.
  • 5 -- Discharge affected to unknown degree by Regulation or Diversion
  • 6 -- Discharge affected by Regulation or Diversion
  • 7 -- Discharge is an Historic Peak