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