% 1948 2012 1948 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 1949 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 1950 27.03 27.15 27.06 27.29 27.59 27.97 27.83 27.72 27.66 27.44 27.35 27.30 1951 27.36 27.27 27.96 28.49 29.04 28.74 28.82 28.53 28.62 28.71 28.74 28.53 1952 28.35 28.08 28.10 28.52 28.69 28.47 28.24 28.09 28.55 28.25 28.28 28.30 1953 28.31 28.26 28.10 28.53 28.92 29.18 29.02 28.83 28.61 28.91 28.91 28.74 1954 28.30 28.16 27.89 28.20 28.40 28.32 28.00 27.76 27.61 27.54 27.53 27.61 1955 27.60 27.30 27.37 27.82 28.03 28.08 28.14 27.94 27.71 27.22 26.79 27.20 1956 27.18 27.27 27.49 27.72 28.11 28.22 28.07 27.67 27.71 27.92 28.02 28.09 1957 28.03 28.10 28.33 28.86 29.15 28.83 28.73 28.91 28.96 29.12 29.12 29.08 1958 29.26 29.28 29.04 29.04 29.21 29.13 28.89 28.53 28.50 28.68 28.79 28.76 1959 28.63 28.38 28.48 28.75 28.85 28.39 28.30 28.27 28.19 28.21 28.12 28.07 1960 27.77 27.49 27.77 28.08 28.52 28.35 28.31 28.19 28.32 28.33 28.37 28.36 1961 27.94 27.85 27.92 27.96 28.38 28.49 28.33 28.12 28.19 28.09 28.26 28.06 1962 27.66 27.57 27.83 28.19 28.23 28.30 28.24 28.15 28.11 28.10 28.12 27.96 1963 27.74 27.70 28.01 28.28 28.40 28.38 28.72 29.01 29.03 29.07 29.11 28.87 1964 28.70 28.39 28.08 28.24 28.39 28.06 27.87 27.64 27.38 27.38 27.34 27.25 1965 27.57 27.77 27.93 28.06 28.70 29.02 29.08 29.19 29.11 29.30 29.17 29.03 1966 28.87 28.85 29.18 28.99 29.08 29.13 29.03 28.76 28.71 28.57 28.65 28.27 1967 27.69 27.48 27.78 28.40 28.80 28.69 28.62 28.42 28.19 28.32 28.43 28.27 1968 27.92 27.80 27.87 28.16 28.30 28.90 28.70 28.68 28.66 28.77 29.17 29.17 1969 29.11 29.28 28.99 29.03 29.21 29.09 28.85 28.93 29.14 29.20 29.20 28.87 1970 28.57 28.57 28.52 28.73 28.97 28.75 28.66 28.16 27.88 27.86 27.91 27.44 1971 26.94 27.07 27.25 27.63 28.02 28.03 27.93 27.84 27.75 27.80 27.87 27.98 1972 27.97 28.15 28.36 28.82 29.21 29.19 29.09 28.92 29.10 29.44 29.48 29.35 1973 29.03 28.77 28.52 28.39 28.51 28.23 28.01 27.65 27.53 27.32 26.97 26.69 1974 26.50 26.87 27.21 27.46 27.94 27.97 27.83 27.97 27.91 27.74 27.72 27.61 1975 27.86 27.96 27.76 27.83 27.95 27.71 27.57 27.29 26.91 26.76 26.80 26.84 1976 26.92 27.19 27.56 27.98 28.32 28.32 28.42 28.34 28.50 28.82 28.92 28.45 1977 28.38 28.11 28.28 28.50 28.78 28.97 29.13 28.87 28.98 28.96 29.10 29.11 1978 28.80 28.48 28.26 28.28 28.72 28.56 28.26 28.25 28.43 28.35 28.37 28.27 1979 28.40 28.22 28.26 28.35 28.70 28.74 28.66 28.36 28.67 28.81 28.87 28.79 1980 28.62 28.47 28.51 28.70 29.08 29.15 28.95 28.47 28.50 28.66 28.58 28.44 1981 28.08 27.94 28.08 28.17 28.34 28.36 28.29 28.22 28.30 28.45 28.47 28.43 1982 28.19 28.04 28.37 28.78 29.21 29.20 28.83 28.81 28.98 29.37 29.18 29.13 1983 28.96 28.80 28.81 28.81 29.21 28.98 28.64 28.35 28.05 27.92 27.73 27.75 1984 27.64 27.60 27.59 27.78 28.19 28.38 28.47 28.30 28.26 28.19 27.92 27.60 1985 27.55 27.68 27.59 27.78 27.99 28.09 28.32 28.34 28.32 28.40 28.48 28.39 1986 27.96 27.95 28.11 28.23 28.53 28.76 28.75 28.95 29.20 29.27 29.33 28.97 1987 28.81 28.82 28.95 28.97 29.24 29.44 29.37 29.40 29.47 29.67 29.53 29.25 1988 28.97 28.54 28.46 28.41 28.26 28.00 27.95 28.07 27.90 27.12 27.06 26.85 1989 26.63 26.75 27.25 27.71 28.24 28.12 28.23 28.10 28.37 28.27 28.10 28.51 1990 28.49 28.58 28.69 28.83 28.93 28.97 29.01 28.99 28.92 29.10 29.13 29.16 1991 28.96 28.71 28.58 28.94 29.37 29.28 29.27 29.23 29.24 29.44 29.40 29.46 1992 29.03 29.00 29.03 29.16 29.39 29.28 29.15 28.92 28.83 28.69 28.67 28.82 1993 28.71 28.37 28.50 28.78 29.03 29.03 29.01 28.86 29.02 28.84 28.88 28.85 1994 28.54 28.27 28.46 28.82 29.20 29.27 29.49 29.51 29.38 29.51 29.60 29.56 1995 29.24 29.16 29.23 29.26 29.36 29.21 29.03 28.81 28.59 28.52 28.32 28.13 1996 27.89 27.61 27.91 28.25 28.62 28.71 28.65 28.62 28.57 28.62 28.62 28.52 1997 28.42 28.53 28.73 29.33 29.51 29.37 29.41 29.31 29.54 29.51 29.45 29.27 1998 29.06 28.90 28.83 28.77 28.87 28.46 28.30 27.99 27.83 27.51 27.41 27.19 1999 26.89 26.90 27.14 27.66 28.14 28.05 27.89 27.77 27.96 27.93 27.54 27.30 2000 27.17 26.88 26.95 27.40 27.90 28.25 28.41 28.28 28.37 28.27 28.06 27.66 2001 27.49 27.38 27.68 28.16 28.65 28.91 29.12 28.98 29.11 29.08 28.93 28.77 2002 28.84 28.70 28.62 29.14 29.61 29.58 29.53 29.41 29.41 29.52 29.66 29.57 2003 29.09 28.94 28.95 28.94 29.01 29.17 29.19 29.09 29.05 29.22 29.08 28.97 2004 28.71 28.61 28.53 28.82 29.18 29.24 29.36 29.47 29.54 29.53 29.49 29.41 2005 29.23 28.91 28.89 29.03 29.24 29.20 28.93 28.78 28.85 28.85 28.65 28.34 2006 27.91 27.58 27.82 28.36 28.91 29.15 29.14 29.20 29.30 29.43 29.55 29.45 2007 28.98 28.69 28.81 28.88 28.90 28.92 28.80 28.57 28.21 28.09 27.90 27.70 2008 27.18 26.79 27.22 27.53 27.93 28.10 28.18 28.27 28.25 28.23 28.16 27.83 2009 27.47 27.34 27.85 28.36 29.09 29.15 29.13 29.20 29.24 29.68 29.90 29.80 2010 29.58 29.25 29.18 29.28 29.27 28.76 28.33 27.82 27.47 27.35 27.47 27.54 2011 27.43 27.13 27.65 28.19 28.55 28.61 28.58 28.54 28.26 28.13 27.96 27.61 2012 27.52 27.61 27.74 28.16 28.58 28.53 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 % -99.99 % Nino 4 Index from CPC % http://www.esrl.noaa.gov/psd/data/climateindices/list/ for info