Country= U.S.A. Station= BALLINGER, TX River= COLORADO RIVER Area= 42507.15 Lat= 31.73 Lon= -99.95 Source= USGS PointID= 8126500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1939 Ending Year= 1993 Total Years= 55 Total Usable Years= 54 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1939 15.29 0.21 0.96 2.48 83.37 95.59 6.6 16.89 0.06 9.66 0.55 0.04 19.31 1940 0.02 4.12 0.02 6.89 49.86 91.83 13.36 94.64 23.73 0.23 27.79 6.83 26.61 1941 1.06 19.32 17.91 103.44 570.15 240.48 46.71 45.76 41.97 329.06 51.71 20.63 124.02 1942 6.39 5.6 2.59 140.89 33.82 34.94 4.39 12.84 79.95 126.37 12.18 8 39 1943 3.82 1.58 8.94 18.6 6.56 37.15 5.24 0.06 0 0.34 0.03 0.09 6.87 1944 0.71 7.79 6.1 1.54 22.41 18.25 13 5.35 4.59 23.61 2.31 3.63 9.11 1945 2.1 1.9 30.7 30.17 6.05 23.3 54.67 3.53 1.74 30.47 1.84 0.92 15.62 1946 1.95 0.74 0.57 0.93 9 16.76 9.14 25.75 72.57 41.87 18.23 30.6 19.01 1947 3.16 1.06 1.71 1.73 225.12 17.33 2.95 0.08 1.56 14.34 4.85 12.6 23.87 1948 1.75 5.44 7.09 1.8 12.51 62.4 54.66 4.81 0.48 6.9 5.37 0.37 13.63 1949 3.51 5.3 2.51 4.45 97.77 68.09 4.02 5.83 37.15 19.01 3.28 1.01 20.99 1950 1.05 1.47 0.44 20.17 86.22 16.44 75.13 24.75 71.75 6.15 1.06 1.16 25.48 1951 1.04 1.5 0.89 0.71 37.75 60.38 8.84 7.65 5.68 0.11 0.16 0.01 10.39 1952 0.03 0.15 0.08 1.34 9.3 4.65 4.34 0.07 0 0 2.13 0.75 1.9 1953 0.07 0.02 2.75 2.65 28.16 2.34 113.2 34.51 6.04 98.51 9.76 2.91 25.08 1954 1.57 0.69 0.3 48.38 169.25 18.43 1.29 1.24 0 0.87 6.68 0.39 20.76 1955 2.44 3.7 9.95 3.37 94.24 69.3 23.7 9.26 203.9 137.66 6.62 4.22 47.36 1956 3.39 2.76 1.06 0.61 15.4 4.09 0.04 0.07 0.04 0.99 5.28 3.91 3.14 1957 0.2 88.55 4.86 223.98 635.1 165.19 12.84 6.01 7.79 49.45 40.19 3.41 103.13 1958 2.54 1.95 6.03 9.29 68.88 10.16 51.39 2.68 29.08 3.82 1.32 0.68 15.65 1959 0.49 0.39 0.22 1.12 19.65 76.55 44.43 7.63 2.61 81.29 3.26 8.78 20.54 1960 8.34 7.07 2.37 4.9 1.27 6.97 85.78 6.14 0.64 131.04 11.47 7.18 22.76 1961 13.88 12.06 6.07 3.43 14.3 131.66 124.77 9.26 34.83 5.03 14.03 4.41 31.14 1962 2.58 1.64 2.67 2.69 2.37 118.04 18.81 9.64 176.45 15.83 23.91 12.93 32.3 1963 3.35 2.86 3.45 20.73 32.72 101.55 6.63 1.97 7.62 4.28 8.67 6.26 16.67 1964 2.83 12.26 1.49 1.68 5.74 12.72 0.17 1.2 13.3 2.34 6.41 0.94 5.09 1965 1.14 0.77 0.34 8.45 109.2 12.71 0.87 11.37 9.58 31.12 3.36 1.56 15.87 1966 1.51 1.61 1.09 73.5 58.93 7.27 0.73 30.42 164.98 7.56 2.47 2.14 29.35 1967 1.71 1.09 1.05 24.88 2.6 47.98 63.33 4.23 16.71 3.18 1.2 1.55 14.13 1968 49.36 7.39 31.12 42.13 24.31 32.66 31.92 4.52 1.06 0.31 0.81 2.87 19.04 1969 1.19 2.67 9.52 11.76 180.39 12.36 1.12 0.65 76.33 18.23 16.47 9.39 28.34 1970 6.32 5.15 21.47 18.14 33.26 7.8 0.26 0.01 0.37 1.04 0.26 0.17 7.85 1971 0.35 0.42 0.2 0.02 14.68 24.93 1.34 137.71 70.34 45.55 11.65 9.18 26.36 1972 4.43 3.15 2.07 3.79 23.26 5.4 5.28 85.31 52.3 24.9 56.84 7.34 22.84 1973 14.23 16.35 27.78 24.3 5.37 15.83 4.13 2.79 9.58 4.62 1.71 1.52 10.68 1974 1.27 1.26 1.03 2.8 3.69 12.29 0.21 1.84 70.19 58.55 60.69 8.14 18.5 1975 7.58 28.81 5.74 5.04 42.7 19.78 26.73 12.11 16.69 3.61 5.86 3.1 14.81 1976 2.83 1.78 2.06 7.12 6.86 1.17 5.54 5.79 23.69 39.31 17.63 4.02 9.82 1977 4.21 3.63 12 19.84 22.26 14.01 2.69 0.99 3.17 0.19 0.27 0.5 6.98 1978 0.61 1.47 2.05 2.75 6.11 8.71 0.08 265.14 13.31 6.49 4.12 3.01 26.15 1979 3.79 2.97 8.63 4.92 30.04 33.42 11.39 10.34 1.01 0.21 1.19 1.27 9.1 1980 1.71 1.87 0.94 0.6 59.5 13.61 1.06 0.27 48.21 116.31 8.44 17.38 22.49 1981 6.73 4.51 12.03 24.84 13.23 52.17 5.27 6.31 4.39 215.22 7.87 4.42 29.75 1982 3.14 3.37 3.58 2.3 194.6 245 47.32 6.94 4.77 2.61 2.28 3.29 43.27 1983 3.92 8.07 4.16 3.25 32.79 12.13 3.92 0.23 0.02 50.95 16.66 5.73 11.82 1984 4.76 3.11 2.81 1.53 0.63 0.16 0.17 1.35 0.81 19.65 16.64 13.63 5.44 1985 20 25.5 23.64 42.74 44.44 50.86 9.65 5.3 1.72 49.89 6.45 3.47 23.64 1986 2.49 2.67 2.17 4.76 8.51 55.66 23.5 6.97 54.26 141.49 28.56 21 29.34 1987 16.92 38.5 44.84 11.03 57.08 108.07 21.6 5.72 7.25 2.54 1.89 11.22 27.22 1988 5.02 3.39 2.94 2.62 1.97 2.7 12.07 1.24 22.67 3.51 2 1.82 5.16 1989 1.52 7.76 3.12 1.93 43.13 45.05 3.1 7.51 38.8 3.38 1.7 1.28 13.19 1990 3.38 3.87 39.87 153.91 190.89 121.57 7.82 17.74 36.28 8.91 6.06 3.59 49.49 1991 11.73 7.12 3.95 2.72 33.33 160.28 13.98 29.18 35.01 33.02 17.33 170.59 43.19 1992 47.35 254.49 117.31 32.89 44.84 225.83 42.99 18.78 11.73 2.97 10.28 15.1 68.71 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 5.79 11.72 9.43 22.08 67.14 52.85 21 18.86 29.98 37.68 10.74 8.72 24.67 Std Dev 9.47 35.94 18.04 42.14 118.14 61.14 28.45 41.95 43.96 61.23 13.84 23.08 21.71