Country= U.S.A. Station= IMPERIAL DAM, CA-AZ. River= COLORADO RIVER Area= 38925669.86 Lat= 32.88 Lon= -114.47 Source= USGS PointID= 9429500 Area Units= km2 Discharge Units= m3/sec Starting Year= 1960 Ending Year= 1995 Total Years= 36 Total Usable Years= 35 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1960 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 16.26 24.35 23.78 -9999 1961 19.55 13.83 22.66 20.41 15.75 29.32 21.48 18.85 11.98 9.69 10.26 11.1 17.07 1962 10.1 8 16.45 21.23 16.07 15.32 23.32 21.52 15.64 23.07 28.1 39.19 19.83 1963 27.14 31.79 13.25 16.24 15.41 20.2 18.97 21.57 25.95 19.4 33.07 28.12 22.59 1964 27.6 28.54 14.64 15.72 17.55 14.73 17.35 24.57 12.56 10.75 12.93 9.49 17.2 1965 9.16 8.88 9.72 12.46 12.49 12.63 12.1 12.12 9.79 8.08 16.22 15.62 11.61 1966 10.59 11.65 13.2 12.97 11.33 10.62 12.42 13.9 14.07 8.36 7.18 5.04 10.94 1967 7.73 7.96 9.97 11.29 8.74 10.7 11.3 12.02 13.46 7.75 8.58 5.06 9.55 1968 7.11 7.02 9.24 11.6 8.37 9.88 17.07 11.56 8.47 9.17 11.63 22.93 11.17 1969 9.35 7.99 9.26 12.77 10 9.63 10.36 10.88 9.3 6.99 12.6 3.28 9.37 1970 3.33 8.41 21.57 11.84 7.91 8.37 10.27 10.22 7.01 8.53 7.94 6.86 9.36 1971 7.1 8.16 9.73 10.64 7.57 8.85 10.16 12.66 10.33 9.41 8.07 6.73 9.12 1972 6.82 7.41 10.17 10.53 8.13 10.13 10.7 10.23 7.95 18.16 7.82 7.94 9.67 1973 7.45 9.95 11.06 10.23 8.53 7.94 10.46 15.51 8.14 7.4 7.38 6.83 9.24 1974 11.23 6.68 10.48 10.96 26.55 10.16 11.31 12.05 20.55 8.27 8.17 12.6 12.42 1975 21.76 16.36 9.58 16.98 18.54 13.58 10.71 10.74 13.52 11.1 8.43 6.2 13.12 1976 6.2 6.72 10.5 14.22 19.48 19.95 11.45 10.3 30 11.6 11.54 6.76 13.23 1977 17.5 11.73 8.77 10.52 20.37 11.82 10.89 26.15 23.82 7.51 8.97 9.66 13.98 1978 34.25 10.88 16.53 10.36 20.67 10.2 10.6 9.81 23.26 14.35 11.48 11.13 15.29 1979 12.67 5.13 8.73 10.96 10.94 10.26 10.13 12.77 12.94 11.16 9.46 9.39 10.38 1980 10.54 11.76 28.72 48.7 37.89 46.03 59.58 42.24 39.17 36.86 48.44 65.84 39.65 1981 46.45 9.45 16.67 12.3 11.69 11.6 11.78 16.63 10.1 7.65 7.7 11.73 14.48 1982 9.36 9.32 21.52 14.65 15.55 14.99 12.73 17.11 15.43 8.68 7.95 13.45 13.39 1983 84.41 41.64 14.17 54.56 61.82 231.45 694.04 734.6 616.08 644.35 418.24 334.14 327.46 1984 415.8 420.07 370.4 352.8 317.21 425.42 476.37 429.87 350.66 325.74 396.06 437.82 393.18 1985 409.32 366.4 219.01 127.43 157.39 258.21 267.9 268.72 253.49 123.87 103.28 179.17 227.85 1986 275.59 201.01 213 181.69 344.25 338.78 256.45 204.03 177.77 118.31 162.96 202.78 223.05 1987 320.45 133.72 58.94 40.21 29.86 25.04 28.2 35.37 43.28 24.49 15.99 14.05 64.13 1988 16.55 16.7 14.75 22.73 18.55 15.15 14.64 25.08 20.3 15.39 14.88 14.02 17.4 1989 13.4 11.52 14.86 15.18 15.99 15.45 17.36 21.34 18.2 13.58 10.83 9.63 14.78 1990 9.75 8.15 9.61 10.61 10.64 9.44 9.04 11.85 10.72 7.9 7.76 8.77 9.52 1991 9.32 6.59 16.09 10.63 9.32 10.33 10.42 10.49 12.14 8.76 7.17 11.7 10.25 1992 11.62 11.03 32.29 10.75 10.75 10.49 11.53 18.11 15.43 13.96 11.09 20.29 14.78 1993 10.66 8.62 9.48 9.66 9.91 9.59 10.07 11.32 10.47 9.14 7.92 9.46 9.69 1994 7.11 10.71 13.74 10.9 18.5 9.91 10.36 13.87 9.56 7.15 7.97 9.15 10.74 1995 8.05 9.31 11.36 11.55 10.31 8.15 8 11.57 9.18 -9999 -9999 -9999 -9999 Avg 54.71 42.66 37.15 33.89 38.4 48.12 61.41 61.42 54.02 45.51 42.35 45.42 48.1 Std Dev 110.79 94.37 74.25 64.55 76.44 98.95 143.78 143.08 120.29 117.61 94.7 94.87 93.22