Monthly Teleconnection Index: Pacific/ North American (PNA) Pattern Indices are normalized using the 1981-2010 base period monthly means and standard deviations. Values are set to -99.90 for calendar months when the pattern is not normally a leading mode of variability. The data is written in format(i4,3x,i2,1x,f6.2). YEAR MONTH INDEX 1950 1 -3.65 1950 2 -1.69 1950 3 -0.06 1950 4 -0.23 1950 5 -0.40 1950 6 -1.99 1950 7 -0.82 1950 8 0.79 1950 9 -1.00 1950 10 0.70 1950 11 -1.74 1950 12 -0.28 1951 1 -1.18 1951 2 -2.11 1951 3 -1.09 1951 4 0.47 1951 5 1.19 1951 6 -0.54 1951 7 -0.44 1951 8 0.02 1951 9 -0.08 1951 10 0.43 1951 11 0.21 1951 12 -1.59 1952 1 -3.19 1952 2 0.08 1952 3 -0.69 1952 4 0.89 1952 5 -0.79 1952 6 0.53 1952 7 -1.57 1952 8 0.77 1952 9 0.40 1952 10 1.05 1952 11 0.77 1952 12 0.63 1953 1 0.18 1953 2 1.04 1953 3 -0.44 1953 4 0.78 1953 5 1.14 1953 6 -1.60 1953 7 0.27 1953 8 -1.15 1953 9 -0.14 1953 10 2.27 1953 11 1.57 1953 12 0.96 1954 1 -2.11 1954 2 -0.48 1954 3 -1.44 1954 4 -2.86 1954 5 0.65 1954 6 0.09 1954 7 -0.14 1954 8 -0.11 1954 9 -0.04 1954 10 0.99 1954 11 1.38 1954 12 -0.82 1955 1 -0.14 1955 2 -2.62 1955 3 -2.47 1955 4 -0.24 1955 5 -0.42 1955 6 0.11 1955 7 -1.32 1955 8 -0.55 1955 9 -0.22 1955 10 0.51 1955 11 -0.93 1955 12 -2.37 1956 1 -2.34 1956 2 -1.69 1956 3 -0.97 1956 4 -0.17 1956 5 -0.17 1956 6 -0.08 1956 7 -1.28 1956 8 -0.23 1956 9 0.42 1956 10 -2.16 1956 11 1.00 1956 12 -0.61 1957 1 -2.18 1957 2 -1.89 1957 3 0.78 1957 4 -0.41 1957 5 1.24 1957 6 0.24 1957 7 -0.11 1957 8 -0.99 1957 9 -0.22 1957 10 0.46 1957 11 0.49 1957 12 -0.73 1958 1 0.62 1958 2 0.36 1958 3 0.18 1958 4 0.31 1958 5 0.66 1958 6 1.48 1958 7 0.74 1958 8 2.13 1958 9 -0.05 1958 10 0.34 1958 11 0.08 1958 12 0.35 1959 1 -1.54 1959 2 -1.23 1959 3 0.21 1959 4 -0.90 1959 5 -0.30 1959 6 1.08 1959 7 -0.45 1959 8 1.03 1959 9 1.19 1959 10 0.23 1959 11 0.26 1959 12 0.36 1960 1 -0.16 1960 2 -0.22 1960 3 -0.69 1960 4 -0.07 1960 5 0.99 1960 6 1.20 1960 7 1.11 1960 8 1.85 1960 9 -0.01 1960 10 0.48 1960 11 -0.52 1960 12 1.15 1961 1 1.16 1961 2 0.17 1961 3 0.28 1961 4 -1.14 1961 5 -0.25 1961 6 1.84 1961 7 -0.52 1961 8 0.47 1961 9 1.10 1961 10 -1.94 1961 11 -0.40 1961 12 -1.54 1962 1 -0.74 1962 2 -0.54 1962 3 -0.71 1962 4 -1.50 1962 5 -1.11 1962 6 -0.97 1962 7 -0.36 1962 8 0.57 1962 9 -0.83 1962 10 1.33 1962 11 0.53 1962 12 -0.38 1963 1 0.09 1963 2 0.79 1963 3 -2.04 1963 4 -0.79 1963 5 -0.95 1963 6 0.50 1963 7 -1.10 1963 8 -1.01 1963 9 0.87 1963 10 0.93 1963 11 -0.31 1963 12 1.46 1964 1 -0.44 1964 2 1.36 1964 3 -1.31 1964 4 -1.30 1964 5 -2.27 1964 6 0.27 1964 7 0.20 1964 8 0.83 1964 9 0.92 1964 10 0.80 1964 11 -0.78 1964 12 -2.03 1965 1 -0.92 1965 2 -1.03 1965 3 -0.80 1965 4 -1.07 1965 5 -0.42 1965 6 1.89 1965 7 -1.26 1965 8 0.32 1965 9 0.36 1965 10 1.42 1965 11 -0.81 1965 12 -1.56 1966 1 -0.15 1966 2 -2.05 1966 3 0.43 1966 4 -0.54 1966 5 -0.15 1966 6 0.10 1966 7 -1.18 1966 8 1.26 1966 9 0.63 1966 10 -0.61 1966 11 -1.96 1966 12 -0.21 1967 1 -1.16 1967 2 -0.20 1967 3 -2.25 1967 4 -1.91 1967 5 -0.80 1967 6 -0.33 1967 7 -1.24 1967 8 -0.35 1967 9 0.11 1967 10 1.10 1967 11 -0.35 1967 12 -1.12 1968 1 -1.78 1968 2 1.11 1968 3 0.13 1968 4 -1.11 1968 5 0.23 1968 6 -0.08 1968 7 -0.04 1968 8 1.30 1968 9 -0.87 1968 10 0.45 1968 11 0.83 1968 12 -1.74 1969 1 -2.96 1969 2 -1.97 1969 3 0.47 1969 4 0.48 1969 5 1.02 1969 6 2.11 1969 7 0.51 1969 8 -0.69 1969 9 1.31 1969 10 0.55 1969 11 0.13 1969 12 1.53 1970 1 0.12 1970 2 1.01 1970 3 0.49 1970 4 -0.66 1970 5 -0.50 1970 6 0.23 1970 7 0.74 1970 8 -0.60 1970 9 -0.39 1970 10 -0.95 1970 11 -1.15 1970 12 -1.09 1971 1 -2.43 1971 2 -0.16 1971 3 -0.28 1971 4 0.23 1971 5 1.09 1971 6 0.51 1971 7 -1.74 1971 8 -0.81 1971 9 0.15 1971 10 -1.35 1971 11 -0.26 1971 12 -1.76 1972 1 -2.46 1972 2 -2.27 1972 3 -0.10 1972 4 -1.95 1972 5 0.21 1972 6 -0.15 1972 7 -1.13 1972 8 -0.04 1972 9 0.13 1972 10 -1.49 1972 11 0.53 1972 12 -0.86 1973 1 -0.88 1973 2 -0.14 1973 3 0.53 1973 4 0.11 1973 5 0.67 1973 6 1.01 1973 7 -0.26 1973 8 -0.95 1973 9 -0.27 1973 10 -0.74 1973 11 -1.66 1973 12 0.23 1974 1 -1.54 1974 2 -1.50 1974 3 -1.10 1974 4 -0.73 1974 5 -0.40 1974 6 -1.36 1974 7 -0.09 1974 8 0.90 1974 9 0.35 1974 10 0.93 1974 11 0.53 1974 12 0.38 1975 1 -1.20 1975 2 -0.51 1975 3 -0.81 1975 4 -0.67 1975 5 0.60 1975 6 -0.31 1975 7 -1.53 1975 8 -1.10 1975 9 -0.23 1975 10 -0.65 1975 11 -0.63 1975 12 -0.16 1976 1 -0.25 1976 2 -2.38 1976 3 -1.78 1976 4 0.92 1976 5 0.58 1976 6 -1.32 1976 7 -0.12 1976 8 -0.62 1976 9 -0.04 1976 10 0.91 1976 11 1.72 1976 12 0.21 1977 1 1.60 1977 2 2.43 1977 3 -0.69 1977 4 -0.32 1977 5 -0.56 1977 6 0.57 1977 7 -1.04 1977 8 2.20 1977 9 -0.72 1977 10 1.25 1977 11 -0.22 1977 12 -0.80 1978 1 0.13 1978 2 1.40 1978 3 -0.18 1978 4 -0.19 1978 5 -0.73 1978 6 -0.92 1978 7 -2.43 1978 8 0.02 1978 9 1.38 1978 10 0.69 1978 11 -0.48 1978 12 -1.02 1979 1 -1.54 1979 2 -2.73 1979 3 0.08 1979 4 -0.15 1979 5 1.27 1979 6 -1.64 1979 7 0.51 1979 8 0.67 1979 9 1.02 1979 10 1.85 1979 11 0.51 1979 12 -0.68 1980 1 -1.01 1980 2 2.03 1980 3 -0.64 1980 4 1.66 1980 5 -0.16 1980 6 -0.81 1980 7 -0.81 1980 8 -2.03 1980 9 -0.08 1980 10 2.87 1980 11 1.28 1980 12 -0.57 1981 1 2.46 1981 2 0.21 1981 3 1.27 1981 4 -1.23 1981 5 1.83 1981 6 -0.10 1981 7 -1.02 1981 8 -1.54 1981 9 0.08 1981 10 -1.43 1981 11 1.19 1981 12 -0.42 1982 1 -1.75 1982 2 -1.20 1982 3 -1.66 1982 4 -2.08 1982 5 -0.53 1982 6 2.17 1982 7 0.49 1982 8 0.31 1982 9 0.83 1982 10 -0.86 1982 11 -0.47 1982 12 0.45 1983 1 0.87 1983 2 1.44 1983 3 2.03 1983 4 0.98 1983 5 -0.08 1983 6 2.10 1983 7 0.82 1983 8 0.50 1983 9 -1.37 1983 10 0.26 1983 11 1.75 1983 12 -0.61 1984 1 0.60 1984 2 0.73 1984 3 1.08 1984 4 1.41 1984 5 0.37 1984 6 -0.36 1984 7 -2.61 1984 8 -1.14 1984 9 -0.02 1984 10 -0.53 1984 11 0.39 1984 12 -1.90 1985 1 1.44 1985 2 -0.99 1985 3 -1.19 1985 4 -1.27 1985 5 -0.82 1985 6 1.28 1985 7 -0.19 1985 8 -0.53 1985 9 -0.63 1985 10 -1.50 1985 11 -1.83 1985 12 1.08 1986 1 0.60 1986 2 0.41 1986 3 0.51 1986 4 -0.15 1986 5 -0.03 1986 6 0.39 1986 7 -0.35 1986 8 -1.49 1986 9 -0.28 1986 10 1.18 1986 11 -0.71 1986 12 1.06 1987 1 0.63 1987 2 0.57 1987 3 0.85 1987 4 1.54 1987 5 -1.02 1987 6 0.56 1987 7 -0.43 1987 8 0.74 1987 9 -2.60 1987 10 0.75 1987 11 1.19 1987 12 0.50 1988 1 0.03 1988 2 1.37 1988 3 0.38 1988 4 1.12 1988 5 0.61 1988 6 1.31 1988 7 1.60 1988 8 -0.62 1988 9 -0.97 1988 10 0.89 1988 11 0.11 1988 12 0.33 1989 1 -1.57 1989 2 -1.71 1989 3 -1.56 1989 4 -0.77 1989 5 -0.04 1989 6 -0.56 1989 7 -0.59 1989 8 -0.27 1989 9 0.41 1989 10 -1.08 1989 11 -0.70 1989 12 0.57 1990 1 -1.09 1990 2 -2.78 1990 3 0.04 1990 4 -0.62 1990 5 0.27 1990 6 -1.39 1990 7 -0.26 1990 8 1.76 1990 9 -0.46 1990 10 -0.91 1990 11 -1.66 1990 12 -1.62 1991 1 0.20 1991 2 1.13 1991 3 -1.21 1991 4 0.38 1991 5 -0.63 1991 6 -0.92 1991 7 0.28 1991 8 -0.28 1991 9 1.15 1991 10 -2.35 1991 11 0.22 1991 12 0.17 1992 1 0.99 1992 2 0.09 1992 3 0.46 1992 4 -0.29 1992 5 1.20 1992 6 1.36 1992 7 0.38 1992 8 -0.37 1992 9 -1.13 1992 10 0.40 1992 11 0.80 1992 12 -1.53 1993 1 -1.48 1993 2 0.44 1993 3 0.94 1993 4 1.26 1993 5 2.43 1993 6 0.66 1993 7 -0.28 1993 8 -0.17 1993 9 -0.97 1993 10 -0.17 1993 11 -0.35 1993 12 0.42 1994 1 -0.80 1994 2 -1.27 1994 3 0.23 1994 4 -0.70 1994 5 0.48 1994 6 -1.36 1994 7 -0.06 1994 8 -1.38 1994 9 -2.02 1994 10 -0.09 1994 11 -1.61 1994 12 0.39 1995 1 0.20 1995 2 0.68 1995 3 0.03 1995 4 0.04 1995 5 0.09 1995 6 0.90 1995 7 -0.74 1995 8 -0.33 1995 9 1.22 1995 10 0.11 1995 11 -0.73 1995 12 0.62 1996 1 -0.68 1996 2 -0.70 1996 3 -0.75 1996 4 0.51 1996 5 0.37 1996 6 -1.18 1996 7 0.18 1996 8 -0.93 1996 9 -0.27 1996 10 -0.67 1996 11 -0.44 1996 12 -1.53 1997 1 0.16 1997 2 0.45 1997 3 -1.56 1997 4 0.29 1997 5 0.77 1997 6 -0.25 1997 7 0.10 1997 8 -0.55 1997 9 0.22 1997 10 -0.12 1997 11 0.86 1997 12 0.85 1998 1 0.30 1998 2 0.89 1998 3 0.69 1998 4 0.85 1998 5 -1.87 1998 6 0.09 1998 7 1.67 1998 8 -0.60 1998 9 0.42 1998 10 0.77 1998 11 0.70 1998 12 -0.39 1999 1 -0.44 1999 2 -0.46 1999 3 0.38 1999 4 0.05 1999 5 -0.05 1999 6 0.43 1999 7 -0.92 1999 8 1.95 1999 9 0.33 1999 10 0.62 1999 11 0.45 1999 12 -0.09 2000 1 -1.70 2000 2 1.20 2000 3 0.95 2000 4 -0.58 2000 5 -0.16 2000 6 -1.19 2000 7 -2.55 2000 8 -0.51 2000 9 -1.21 2000 10 0.44 2000 11 0.70 2000 12 0.92 2001 1 1.29 2001 2 -0.51 2001 3 0.39 2001 4 -0.70 2001 5 -0.01 2001 6 -0.89 2001 7 -0.36 2001 8 -0.14 2001 9 0.04 2001 10 -0.08 2001 11 1.03 2001 12 0.26 2002 1 -0.70 2002 2 -0.11 2002 3 -1.56 2002 4 -2.40 2002 5 -0.56 2002 6 0.06 2002 7 0.40 2002 8 0.61 2002 9 0.60 2002 10 -0.55 2002 11 1.46 2002 12 1.28 2003 1 1.01 2003 2 0.68 2003 3 -0.36 2003 4 -0.10 2003 5 -1.85 2003 6 -0.53 2003 7 0.73 2003 8 -0.31 2003 9 0.59 2003 10 1.23 2003 11 -1.65 2003 12 0.56 2004 1 -0.12 2004 2 1.12 2004 3 0.00 2004 4 0.25 2004 5 -1.46 2004 6 -0.28 2004 7 -0.33 2004 8 1.52 2004 9 -0.11 2004 10 -1.37 2004 11 0.29 2004 12 -0.04 2005 1 -0.62 2005 2 -0.11 2005 3 0.56 2005 4 1.00 2005 5 1.62 2005 6 0.42 2005 7 -0.02 2005 8 0.69 2005 9 1.32 2005 10 1.16 2005 11 -0.74 2005 12 1.07 2006 1 -0.10 2006 2 -0.44 2006 3 -0.56 2006 4 0.20 2006 5 -1.03 2006 6 -1.02 2006 7 1.29 2006 8 -1.45 2006 9 0.31 2006 10 -0.76 2006 11 -1.34 2006 12 1.55 2007 1 0.27 2007 2 -0.42 2007 3 -0.12 2007 4 0.97 2007 5 0.03 2007 6 -0.30 2007 7 1.65 2007 8 1.96 2007 9 1.52 2007 10 0.77 2007 11 0.65 2007 12 -0.16 2008 1 -1.06 2008 2 0.37 2008 3 -0.61 2008 4 -1.18 2008 5 1.25 2008 6 -1.76 2008 7 -0.51 2008 8 0.89 2008 9 0.89 2008 10 1.11 2008 11 1.05 2008 12 -1.71 2009 1 0.13 2009 2 -1.57 2009 3 -1.29 2009 4 -0.04 2009 5 -0.43 2009 6 0.48 2009 7 0.72 2009 8 0.62 2009 9 1.03 2009 10 0.64 2009 11 0.19 2009 12 0.04 2010 1 0.96 2010 2 0.48 2010 3 1.68 2010 4 1.26 2010 5 -0.73 2010 6 -0.10 2010 7 0.89 2010 8 1.07 2010 9 1.07 2010 10 2.15 2010 11 -0.81 2010 12 -2.08 2011 1 1.00 2011 2 -2.41 2011 3 0.38 2011 4 -1.78 2011 5 0.25 2011 6 0.35 2011 7 -0.75 2011 8 1.40 2011 9 -0.39 2011 10 0.86 2011 11 -0.76 2011 12 0.06 2012 1 0.13 2012 2 0.70 2012 3 -0.19 2012 4 -0.09 2012 5 -0.29 2012 6 -0.42 2012 7 -0.57 2012 8 -0.20 2012 9 -0.39 2012 10 -1.13 2012 11 -1.06 2012 12 -1.31 2013 1 0.05 2013 2 0.30 2013 3 -0.26 2013 4 -1.76 2013 5 -0.24 2013 6 -0.35 2013 7 -0.71 2013 8 -0.06 2013 9 0.41 2013 10 -0.21 2013 11 -1.14 2013 12 -1.16 2014 1 0.59 2014 2 -1.57 2014 3 -0.50 2014 4 0.00 2014 5 -0.59 2014 6 -1.44 2014 7 0.50 2014 8 1.35 2014 9 0.78 2014 10 1.14 2014 11 0.64 2014 12 0.37 2015 1 0.14 2015 2 0.49 2015 3 -0.52 2015 4 -0.39 2015 5 -0.05 2015 6 -0.07 2015 7 0.29 2015 8 0.05 2015 9 -0.80 2015 10 2.12 2015 11 -0.20 2015 12 0.47 2016 1 1.94 2016 2 1.68 2016 3 0.41 2016 4 0.60 2016 5 -0.85 2016 6 -0.64 2016 7 0.53 2016 8 -0.91 2016 9 0.11 2016 10 1.53 2016 11 1.44 2016 12 -0.65 2017 1 -0.29 2017 2 -0.05 2017 3 -0.03 2017 4 0.14 2017 5 -0.19 2017 6 1.18 2017 7 1.33 2017 8 0.20 2017 9 -0.32 2017 10 -0.28 2017 11 -1.98 2017 12 0.58 2018 1 -0.14 2018 2 -1.67 2018 3 -1.16 2018 4 -1.12 2018 5 -1.09 2018 6 0.66 2018 7 -0.76 2018 8 1.24 2018 9 1.16 2018 10 0.39 2018 11 0.22 2018 12 0.56 2019 1 0.42 2019 2 -1.73 2019 3 -0.05 2019 4 -0.84