Country= U.S.A. Station= GIRVIN, TX River= PECOS RIVER Area= 76555.86 Lat= 31.11 Lon= -102.42 Source= USGS PointID= 8446500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1924 Ending Year= 1993 Total Years= 70 Total Usable Years= 37 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1924 17.49 30.52 57.06 27.95 53.77 32.38 3.94 1.91 7.85 1.84 1.72 2.03 19.87 1925 1.84 1.63 1.37 2.39 18.75 1.06 0.6 0.63 7.86 23.34 44.36 2.68 8.88 1926 17.82 8.33 46.02 144.48 57.66 26.41 34.38 5.26 3.92 10.08 3.23 5.19 30.23 1927 4.6 50.61 31.54 47 29.95 64.38 12.85 2.65 1.86 55.04 5.98 6.76 26.1 1928 4.52 16.07 12.46 9.53 14.82 37.43 3.74 7.72 2.91 0.81 0.88 4 9.57 1929 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1930 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1931 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1932 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1933 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1934 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1935 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1936 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1937 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1938 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1939 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1940 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1941 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1942 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1943 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1944 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1945 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1946 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1947 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1948 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1949 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1950 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1951 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1952 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1953 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1954 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1955 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1956 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1957 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1958 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1959 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1960 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1961 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1962 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 1963 8.3 2.74 5.59 2.98 9.34 11.82 5.69 0.34 1.6 2.01 3.14 1.35 4.58 1964 2.23 4.53 11.43 20.99 21.42 40.56 13.15 5.75 16.96 48.57 39.8 17.81 20.27 1965 30.22 66.58 68.19 34.11 188.91 205.69 100 68.55 16.98 10.77 54.82 23.37 72.35 1966 17.7 30.26 28.75 33.42 77.26 54.37 13.11 30.22 50.44 12.63 5.22 4.23 29.8 1967 3.38 3.22 2.89 16.45 11.49 4.68 11.72 6.73 2.48 3.13 2.69 3.1 6 1968 61.29 86.82 91.52 100.04 94.71 84.83 34.17 3.48 2.72 1.8 2.2 2.88 47.21 1969 3.66 8.95 11.55 68.19 93.96 22.2 6.15 2.28 1.64 5.5 5.67 21.36 20.93 1970 26.13 24.99 92.43 116.27 78.61 52.67 2.7 1.74 24.58 4.95 2.9 1.83 35.82 1971 1.68 1.89 10.97 13.75 10.07 16.99 13.09 10.78 3.43 20.9 17.05 33.35 12.83 1972 25.86 8 6.98 3.72 24 5.07 2.41 2.3 1.17 3.31 8.32 3.92 7.92 1973 14.81 17.64 23.98 20.59 28.95 33.69 13.4 2.86 4.55 37.56 23.67 6.99 19.06 1974 10.75 6.42 4.62 3.71 9.4 8.28 8.47 12.71 40.58 78.15 60.49 76.11 26.64 1975 127.98 116.75 65.54 59.27 68.76 96.44 41.99 11.47 5.54 3.2 2.83 2.92 50.22 1976 2.39 2.33 4.1 19.5 43.37 19.42 79.42 7.44 8.23 21.17 19.33 39.83 22.21 1977 30.38 62.82 33.36 103.15 150.74 95.64 3.83 3.2 2.09 2.24 2.2 1.82 40.96 1978 1.9 3.33 3.33 2.3 4.25 17.67 25.77 4.43 1.75 1.22 2.82 2.31 5.92 1979 5.46 11.02 11.59 32.29 69.11 132.84 31.37 15.22 4.23 3.32 2.87 3.99 26.94 1980 3.65 5.68 4.2 5.25 98.86 36.06 14.27 2.74 2.6 1.89 2.41 2.41 15 1981 1.95 2.65 3.23 4.71 4.6 78.14 79.37 8.32 10.65 21.87 8.66 3.72 18.99 1982 4.71 3.63 10.1 19.31 50.17 13.84 19.8 2.51 1.85 1.55 2.64 2.33 11.04 1983 2.63 8.63 25.64 10.7 27.47 16.64 3.5 3.41 2.29 1.58 1.78 2.05 8.86 1984 2.33 1.72 3.45 1.68 5.84 11.21 14.55 9.21 5.05 8.8 3.39 5.32 6.05 1985 4.48 12.63 13.49 18.86 39.27 20.13 5.68 2.39 3.78 27.33 19.7 30.61 16.53 1986 38.46 73.23 13.77 5.26 27.09 77.57 86.78 21.92 56.9 31.93 49.55 55.47 44.83 1987 96.62 50.17 76.78 44.44 18.96 58.16 159.03 63.89 10.41 2.97 3.52 6.64 49.3 1988 5.44 3.3 7.56 3.87 10.9 24.69 35.56 19.71 2.11 1.97 1.92 1.77 9.9 1989 2.63 4.75 4.24 3.54 34.25 59.42 17.52 8.73 3.13 2.22 1.64 1.64 11.98 1990 1.81 2.34 9.42 20.07 133.02 125.4 41.58 13.39 9.94 5.47 7.14 4.88 31.21 1991 27.15 19.45 10.18 11.6 59.66 26.79 7.61 3.82 14.27 5.86 43.93 76.38 25.56 1992 205.35 173.38 288.71 261.55 193.48 159.12 175.7 108.12 25.07 6.63 5.95 10.97 134.5 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 23.36 26.49 31.32 36.94 53.22 50.62 32.08 13.6 10.33 13.47 13.27 13.49 26.52 Std Dev 41.24 37.68 51.25 52.23 49.65 46.95 41.9 22.15 13.55 17.67 17.32 19.84 24.11