Country= U.S.A. Station= RIVERSIDE, TX River= TRINITY RIVER Area= 40373.12 Lat= 30.86 Lon= -95.39 Source= USGS PointID= 8066000 Area Units= km2 Discharge Units= m3/sec Starting Year= 1961 Ending Year= 1993 Total Years= 33 Total Usable Years= 32 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1961 52.2 167.26 113.21 103.08 75.2 139.62 155.91 104.93 86.39 26.14 86.78 89.02 99.98 1962 53.25 10.38 10.28 15.99 41.67 63.22 53.43 50.47 33.72 16.72 15.01 28.96 32.76 1963 18.56 37.08 7.86 39.69 49.17 59.6 54.84 53.75 45.96 8.45 2.68 3.14 31.73 1964 3.08 3.92 3.7 29.21 48.28 62.57 46.18 33.46 36.79 8.24 7.63 4.27 23.94 1965 40.12 68 14.19 28.72 162.27 195.98 57.62 44.13 47.51 24.36 56.86 76.39 68.01 1966 30.36 22.72 15.84 69.71 162.74 63.83 50.92 39.18 33.11 16.14 19.34 4.36 44.02 1967 3.43 4.58 20.2 45.72 60.48 59.55 36.87 57.42 39.7 17.36 31.17 12.92 32.45 1968 180.72 188.97 181.68 184.15 253.94 184.99 94.4 56.92 46.18 14.15 8.16 20 117.86 1969 8.86 20.94 24.25 77.48 138.97 65.26 51.37 50.7 38.05 62.98 98.46 62.56 58.32 1970 69.96 82.74 174.17 160.09 144.19 138.86 89.04 53.25 43.57 16.3 7.15 6.13 82.12 1971 12.16 4.74 25.98 44.87 54.95 63.64 47.78 44.47 29.68 56.17 91.79 101.85 48.17 1972 33.34 22.15 20.2 49.34 57.44 60.44 41.34 48.36 41.19 18.19 9.49 8.76 34.19 1973 35.48 37.67 42.81 52.22 80.09 62.71 67.06 59.55 45.03 180.67 40.47 65.62 64.11 1974 78.2 22.22 26.59 40.02 83.28 63.35 51.64 53.35 139.6 151.72 320.78 97.47 94.02 1975 103.95 210.85 105.68 82.22 295.11 227.71 104.36 56.3 44.95 22.48 15.41 10.66 106.64 1976 13.62 6.25 24 89.19 82.85 82.11 126.6 70.31 67.54 30.48 30.3 49.38 56.05 1977 44.69 70.03 49.52 313.71 240.09 119.53 53.06 59.96 50.31 12.11 13.81 13.92 86.73 1978 7.69 9.79 15.37 48.78 65.38 72.84 50.71 60.42 46.61 10.16 9.73 5.6 33.59 1979 21.55 33.15 32.25 62.35 100.53 115.31 49.75 55.45 44.79 10.2 4.71 7.43 44.79 1980 11.83 7.46 22.14 42.31 75.41 72.12 60.11 61.6 57.01 15.85 15.75 18.82 38.37 1981 23.53 17.06 75.89 62.15 81.2 475.77 103.67 75.14 50.92 65.7 63.61 30.04 93.72 1982 16.56 25.18 34.21 55.55 111.55 87.42 86.97 73.02 60.69 10.3 7.48 8.63 48.13 1983 7.5 16.72 39.1 26.98 56.44 61.28 49.4 33.66 50.24 30.38 10.58 12.59 32.91 1984 15.81 6.37 10.47 44.16 57.21 80.75 59.56 50.25 55.18 62.97 15.75 19.76 39.85 1985 24.67 27.23 55.04 45.81 51.72 84.78 55.78 50.94 38.59 24.09 45.79 28.46 44.41 1986 32.71 15.28 22.5 44.98 83.99 103.07 46.74 46.22 56.51 135.27 121.08 159.18 72.29 1987 150.66 92.46 145.93 72.46 96.27 668.72 149.34 59.83 81.52 58.88 18.97 13.17 134.02 1988 18.22 7.75 50.62 30.39 54.9 63.56 61.07 52.6 48.94 25.79 6.55 10.13 35.88 1989 14.3 14.59 20.33 36.25 64.66 58.18 49.06 46.02 51 19.58 5.46 5.66 32.09 1990 6.17 8.36 11.2 24.38 69.72 66.09 47.84 48.1 44.41 19.34 8.61 7.91 30.18 1991 83.54 30.81 40.64 61.72 70.94 70.34 55.21 66.07 45.42 21.07 10.51 418.26 81.21 1992 495.35 825.2 478.75 187.67 183.61 297.32 79.43 56.62 50.24 17.49 13.88 34.88 226.7 1993 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 Avg 53.5 66.18 59.83 70.98 101.7 127.83 68.35 55.39 51.6 37.8 37.93 44.87 64.66 Std Dev 89.3 146.15 88.42 60.27 63.46 129.74 30 13.07 19.86 41.82 59.42 76.32 40.97