Country= U.S.A. Station= COLUMBUS,TX River= COLORADO RIVER Area= 107227.41 Lat= 29.72 Lon= -96.57 Source= USGS PointID= 8160700 Area Units= km2 Discharge Units= m3/sec Starting Year= 1957 Ending Year= 1993 Total Years= 37 Total Usable Years= 36 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1957 5.05 7.51 9.68 181.51 439.38 384.01 165.34 105.22 17.56 13.45 129.47 31.83 124.17 1958 41.64 27.24 81.74 115.61 299.74 130.76 49.63 10.07 16.68 12.83 8.27 8.25 66.87 1959 8.08 14.19 8.96 10.56 12.49 21.47 11.74 6.46 7.34 143.07 14.64 32.16 24.26 1960 119.35 37.85 20.29 15.45 24.34 8.96 13.6 14.37 8.31 11.02 8.54 19.76 25.15 1961 38.08 35.81 50.48 22.07 12.22 42 16.63 10.21 12.07 11.39 11.94 14.55 23.12 1962 10.2 14.25 9.88 35.49 13.36 19.44 47.81 35.07 212.98 109.36 30.64 71.44 50.83 1963 14.6 9.8 9.67 33.89 59.39 14.81 12.42 10.56 9.84 7.58 7.21 7.44 16.43 1964 9.93 8.78 20.41 20.56 17.31 10.48 9.33 11.49 100.47 44.83 102.33 129.71 40.47 1965 52.55 173.74 40.5 22.91 179.77 47.27 14.21 13.21 20.16 13.92 16.49 14.71 50.79 1966 12.32 50.35 20.92 134.29 305.01 180.44 88.05 19.96 21.98 24.46 10.49 11.25 73.29 1967 9.61 10.7 12.02 28.06 21.54 74.42 17.93 10.99 21.2 21.02 14.14 17.69 21.61 1968 36.38 25.17 168.12 154.94 140.02 94.04 22.13 17.1 15.5 16.11 19.92 15.82 60.44 1969 17.66 34.92 122.38 131.21 300.99 120.71 25.45 15.57 21.47 29.82 18.63 26.27 72.09 1970 29.05 56.53 198.94 103.45 153.67 57.36 13.22 16.74 40.53 35.94 9.55 9.79 60.4 1971 11.2 13.96 17.65 19.67 17.27 14.43 19.53 25.93 15.44 106.02 27.02 229.9 43.17 1972 127.38 15.24 13.81 23.96 23.28 14.53 11.72 12.93 13.76 23.17 23.03 13.35 26.35 1973 27.99 37.37 61.11 94.6 126.22 178.58 67.82 51.27 44.78 133.78 68.54 29.46 76.79 1974 31.49 21.5 15.47 29.75 56.92 48.92 13.37 23.73 53.34 36.88 285.93 175.99 66.11 1975 48.15 246.7 76.61 148.6 111.46 211.47 58.5 26.8 13.09 10.51 11.28 14.15 81.44 1976 13.48 13.81 19.07 77.14 44.64 43.36 27.2 16.99 26.91 26.87 18.28 27.07 29.57 1977 28.51 50.26 133.73 227.85 98.1 20.81 15.09 20.83 16.27 14.69 15.61 11.34 54.42 1978 14.97 30.58 22.76 19.74 37.63 15.22 10.89 15.69 13.66 11.1 16.96 12.72 18.49 1979 32.18 26.07 71.88 55.12 176.2 75.3 15.95 30.85 15.28 17.89 16.17 24.29 46.43 1980 28.12 25.26 19.1 27.75 41.31 17.75 12.31 12.33 26.67 21.21 14.34 20.93 22.26 1981 12.92 14.12 36.99 22.04 67.05 142.29 39.12 14.68 23.03 289.46 406.22 190.96 104.91 1982 137.66 130.57 66.15 49.41 403.95 348.5 241.42 168.85 47.15 20.31 29.17 33.23 139.7 1983 21.88 58.61 38.78 26.65 42.39 37.05 23.45 31.66 17.87 27.34 22.3 19.57 30.63 1984 21.87 28.35 75.1 27.8 30.9 24.26 16.71 17.92 16.95 63.85 35.85 64.85 35.37 1985 45.87 39.59 70.37 117 127.23 85.86 23.5 18.04 21.89 35.63 29.84 25.19 53.33 1986 17.13 89.35 24.47 68.56 115.9 252.25 65.78 25.59 45.09 27.66 31.06 34.81 66.47 1987 57.84 78.55 186.63 71.33 72.81 235.98 55.45 21.37 23.56 17.91 33.79 39.76 74.58 1988 23.01 22.79 27.09 25.06 20.66 33.72 28.45 15.94 25.57 21.5 20.91 23.55 24.02 1989 37.16 71.61 71.25 57 361.87 501.91 258.97 90.6 30.67 19.13 18.91 18.43 128.13 1990 40.95 66.92 166.74 283.54 849.05 295.8 115.09 96.94 19.13 24.44 38.72 23.03 168.36 1991 42.16 38.07 23.94 80.24 76.04 49.28 22.79 36.46 40.84 136.98 277.7 396.71 101.77 1992 435.35 332.62 279.17 74.42 109.8 187.39 62.9 32.03 31.65 30.3 35.82 113.44 143.74 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 46.16 54.41 63.66 73.26 138.61 112.25 47.6 30.68 30.8 44.76 52.21 54.26 62.39 Std Dev 72.82 67.28 64.46 63.93 167.45 119.89 59.01 32.98 35.19 55.8 87 79.02 39.13