YEAR Month Twin Lakes Resevoir Long Term Pan Evaporation (In) 1967 5 7.14 1967 6 7.49 1967 7 8.9 1967 8 5.83 1967 9 5.4 1968 5 1968 6 10.22 1968 7 7.81 1968 8 6.81 1968 9 6.03 1969 5 7.72 1969 6 6.24 1969 7 7.21 1969 8 7.19 1969 9 4.17 1970 5 1970 6 8.18 1970 7 7.44 1970 8 6.5 1970 9 4.93 1971 5 1971 6 8.35 1971 7 7.69 1971 8 6.57 1971 9 5.63 1972 5 1972 6 7.93 1972 7 8.67 1972 8 6.7 1972 9 5.52 1973 5 1973 6 9.78 1973 7 7.31 1973 8 6.92 1973 9 5.21 1974 5 1974 6 1974 7 7.68 1974 8 7.41 1974 9 6.65 1975 5 1975 6 1975 7 7.02 1975 8 6.1 1975 9 5.69 1978 5 1978 6 10.5 1978 7 9.75 1978 8 7.9 1978 9 6.47 1989 5 1989 6 1989 7 9.09 1989 8 7.21 1989 9 6.61 1990 5 7.17 1990 6 10.56 1990 7 6.93 1990 8 6.47 1990 9 6 1991 5 5.79 1991 6 8.39 1991 7 7.62 1991 8 5.83 1991 9 5.85 1992 5 6.39 1992 6 7.56 1992 7 7.72 1992 8 6.08 1992 9 6.52 1993 5 1993 6 10.08 1993 7 10.14 1993 8 7.72 1993 9 6.43 1994 5 1994 6 10.62 1994 7 8.55 1994 8 6.98 1994 9 5.48 1995 5 1995 6 7.85 1995 7 8.03 1995 8 6.91 1995 9 1996 5 1996 6 8.33 1996 7 8.1 1996 8 7.29 1996 9 5.42 1997 5 1997 6 7.69 1997 7 7.97 1997 8 5.82 1997 9 4.73 1998 5 1998 6 1998 7 1998 8 6.29 1998 9 1999 5 1999 6 8.65 1999 7 5.86 1999 8 6.05 1999 9 5.43 2000 5 2000 6 9.77 2000 7 8.86 2000 8 2000 9 2001 5 2001 6 9.65 2001 7 8.02 2001 8 4.81 2001 9 2002 5 2002 6 9.14 2002 7 8.19 2002 8 9.12 2002 9 4.76 2003 5 2003 6 8.38 2003 7 9.7 2003 8 5.98 2003 9 5.16 2004 5 2004 6 8.63 2004 7 2004 8 6.62 2004 9 5.16 2005 5 2005 6 9.13 2005 7 9.55 2005 8 6.56 2005 9 5.66 2006 5 2006 6 9.49 2006 7 5.92 2006 8 5.31 2006 9 2007 5 2007 6 8.3 2007 7 7.18 2007 8 5.72 2007 9 5.22 2008 5 2008 6 10.17 2008 7 7.94 2008 8 6.34 2008 9 5.81 2009 5 5.11 2009 6 5.13 2009 7 7.55 2009 8 7.33 2009 9 3.45