Oceanic Niño Index - Monthly
Source: NCEP
Date, Index
1/01/1950,-1.42
2/01/1950,-1.31
3/01/1950,-1.04
4/01/1950,-1.12
5/01/1950,-1.38
6/01/1950,-0.78
7/01/1950,-0.5
8/01/1950,-0.5
9/01/1950,-0.52
10/01/1950,-0.27
11/01/1950,-0.59
12/01/1950,-0.78
1/01/1951,-0.79
2/01/1951,-0.73
3/01/1951,-0.34
4/01/1951,-0.24
5/01/1951,0.11
6/01/1951,0.15
7/01/1951,0.81
8/01/1951,0.86
9/01/1951,1.19
10/01/1951,1.2
11/01/1951,1.27
12/01/1951,0.85
1/01/1952,0.59
2/01/1952,0.27
3/01/1952,0.24
4/01/1952,0.38
5/01/1952,0.39
6/01/1952,0.01
7/01/1952,-0.19
8/01/1952,-0.02
9/01/1952,0.24
10/01/1952,0.31
11/01/1952,0.14
12/01/1952,0.25
1/01/1953,0.59
2/01/1953,0.66
3/01/1953,0.59
4/01/1953,0.68
5/01/1953,0.7
6/01/1953,0.71
7/01/1953,0.6
8/01/1953,0.66
9/01/1953,0.82
10/01/1953,0.8
11/01/1953,0.75
12/01/1953,0.72
1/01/1954,0.77
2/01/1954,0.69
3/01/1954,0.12
4/01/1954,-0.64
5/01/1954,-0.53
6/01/1954,-0.39
7/01/1954,-0.55
8/01/1954,-0.75
9/01/1954,-0.93
10/01/1954,-0.72
11/01/1954,-0.55
12/01/1954,-0.91
1/01/1955,-0.71
2/01/1955,-0.62
3/01/1955,-0.7
4/01/1955,-0.84
5/01/1955,-0.92
6/01/1955,-0.76
7/01/1955,-0.61
8/01/1955,-0.88
9/01/1955,-0.69
10/01/1955,-1.56
11/01/1955,-1.93
12/01/1955,-1.69
1/01/1956,-1.11
2/01/1956,-0.62
3/01/1956,-0.51
4/01/1956,-0.59
5/01/1956,-0.38
6/01/1956,-0.39
7/01/1956,-0.61
8/01/1956,-0.62
9/01/1956,-0.43
10/01/1956,-0.43
11/01/1956,-0.61
12/01/1956,-0.58
1/01/1957,-0.3
2/01/1957,-0.05
3/01/1957,0.49
4/01/1957,0.77
5/01/1957,0.96
6/01/1957,0.89
7/01/1957,1.13
8/01/1957,1.22
9/01/1957,1.2
10/01/1957,1.22
11/01/1957,1.54
12/01/1957,1.78
1/01/1958,1.96
2/01/1958,1.77
3/01/1958,1.18
4/01/1958,0.78
5/01/1958,0.72
6/01/1958,0.67
7/01/1958,0.49
8/01/1958,0.37
9/01/1958,0.16
10/01/1958,0.35
11/01/1958,0.64
12/01/1958,0.48
1/01/1959,0.73
2/01/1959,0.61
3/01/1959,0.4
4/01/1959,0.36
5/01/1959,0.19
6/01/1959,-0.04
7/01/1959,-0.42
8/01/1959,-0.2
9/01/1959,-0.16
10/01/1959,0.16
11/01/1959,0.07
12/01/1959,0.14
1/01/1960,-0.15
2/01/1960,-0.36
3/01/1960,-0.18
4/01/1960,-0.06
5/01/1960,0
6/01/1960,-0.14
7/01/1960,0.08
8/01/1960,0.32
9/01/1960,0.26
10/01/1960,0.08
11/01/1960,0.08
12/01/1960,0.11
1/01/1961,0.01
2/01/1961,0.01
3/01/1961,-0.1
4/01/1961,0.01
5/01/1961,0.3
6/01/1961,0.54
7/01/1961,0.21
8/01/1961,-0.09
9/01/1961,-0.38
10/01/1961,-0.34
11/01/1961,-0.04
12/01/1961,-0.07
1/01/1962,-0.24
2/01/1962,-0.31
3/01/1962,-0.29
4/01/1962,-0.27
5/01/1962,-0.32
6/01/1962,-0.12
7/01/1962,0
8/01/1962,0.01
9/01/1962,-0.27
10/01/1962,-0.22
11/01/1962,-0.36
12/01/1962,-0.52
1/01/1963,-0.5
2/01/1963,-0.21
3/01/1963,0.21
4/01/1963,0.37
5/01/1963,0.16
6/01/1963,0.38
7/01/1963,0.97
8/01/1963,1.13
9/01/1963,1.11
10/01/1963,1.28
11/01/1963,1.36
12/01/1963,1.43
1/01/1964,1.05
2/01/1964,0.67
3/01/1964,0.01
4/01/1964,-0.44
5/01/1964,-0.61
6/01/1964,-0.64
7/01/1964,-0.51
8/01/1964,-0.76
9/01/1964,-0.86
10/01/1964,-0.74
11/01/1964,-0.84
12/01/1964,-0.86
1/01/1965,-0.58
2/01/1965,-0.23
3/01/1965,0.03
4/01/1965,0.12
5/01/1965,0.52
6/01/1965,0.89
7/01/1965,1.09
8/01/1965,1.57
9/01/1965,1.68
10/01/1965,1.97
11/01/1965,2.04
12/01/1965,1.79
1/01/1966,1.29
2/01/1966,0.99
3/01/1966,1.07
4/01/1966,0.74
5/01/1966,0.06
6/01/1966,0.35
7/01/1966,0.37
8/01/1966,0.03
9/01/1966,-0.04
10/01/1966,-0.09
11/01/1966,-0.08
12/01/1966,-0.25
1/01/1967,-0.29
2/01/1967,-0.31
3/01/1967,-0.47
4/01/1967,-0.58
5/01/1967,-0.11
6/01/1967,0.2
7/01/1967,0.12
8/01/1967,-0.02
9/01/1967,-0.43
10/01/1967,-0.31
11/01/1967,-0.24
12/01/1967,-0.36
1/01/1968,-0.68
2/01/1968,-0.87
3/01/1968,-0.76
4/01/1968,-0.41
5/01/1968,-0.45
6/01/1968,0.27
7/01/1968,0.56
8/01/1968,0.49
9/01/1968,0.37
10/01/1968,0.49
11/01/1968,0.88
12/01/1968,0.97
1/01/1969,1.09
2/01/1969,1.29
3/01/1969,0.88
4/01/1969,0.89
5/01/1969,0.89
6/01/1969,0.58
7/01/1969,0.26
8/01/1969,0.54
9/01/1969,0.82
10/01/1969,1.01
11/01/1969,0.86
12/01/1969,0.86
1/01/1970,0.61
2/01/1970,0.38
3/01/1970,0.23
4/01/1970,0.45
5/01/1970,0.16
6/01/1970,-0.29
7/01/1970,-0.57
8/01/1970,-0.76
9/01/1970,-0.66
10/01/1970,-0.71
11/01/1970,-0.67
12/01/1970,-0.98
1/01/1971,-1.42
2/01/1971,-1.31
3/01/1971,-1.07
4/01/1971,-0.76
5/01/1971,-0.59
6/01/1971,-0.77
7/01/1971,-0.77
8/01/1971,-0.69
9/01/1971,-0.63
10/01/1971,-0.92
11/01/1971,-0.87
12/01/1971,-0.97
1/01/1972,-0.67
2/01/1972,-0.28
3/01/1972,0.04
4/01/1972,0.39
5/01/1972,0.62
6/01/1972,0.77
7/01/1972,1.13
8/01/1972,1.44
9/01/1972,1.54
10/01/1972,1.89
11/01/1972,2.13
12/01/1972,2.27
1/01/1973,1.91
2/01/1973,1.28
3/01/1973,0.54
4/01/1973,-0.16
5/01/1973,-0.53
6/01/1973,-0.73
7/01/1973,-1.11
8/01/1973,-1.2
9/01/1973,-1.24
10/01/1973,-1.52
11/01/1973,-2.05
12/01/1973,-2.08
1/01/1974,-1.99
2/01/1974,-1.57
3/01/1974,-1.24
4/01/1974,-0.9
5/01/1974,-0.8
6/01/1974,-0.75
7/01/1974,-0.57
8/01/1974,-0.3
9/01/1974,-0.34
10/01/1974,-0.65
11/01/1974,-0.92
12/01/1974,-0.82
1/01/1975,-0.33
2/01/1975,-0.48
3/01/1975,-0.72
4/01/1975,-0.54
5/01/1975,-0.68
6/01/1975,-1.17
7/01/1975,-1.07
8/01/1975,-1.19
9/01/1975,-1.36
10/01/1975,-1.69
11/01/1975,-1.45
12/01/1975,-1.76
1/01/1976,-1.78
2/01/1976,-1.1
3/01/1976,-0.55
4/01/1976,-0.53
5/01/1976,-0.33
6/01/1976,-0.1
7/01/1976,0.2
8/01/1976,0.39
9/01/1976,0.49
10/01/1976,0.88
11/01/1976,0.85
12/01/1976,0.63
1/01/1977,0.81
2/01/1977,0.47
3/01/1977,0.43
4/01/1977,0.08
5/01/1977,0.34
6/01/1977,0.5
7/01/1977,0.49
8/01/1977,0.22
9/01/1977,0.57
10/01/1977,0.76
11/01/1977,0.7
12/01/1977,0.83
1/01/1978,0.81
2/01/1978,0.48
3/01/1978,0.09
4/01/1978,-0.28
5/01/1978,-0.26
6/01/1978,-0.29
7/01/1978,-0.26
8/01/1978,-0.47
9/01/1978,-0.43
10/01/1978,-0.19
11/01/1978,-0.14
12/01/1978,-0.04
1/01/1979,-0.05
2/01/1979,-0.07
3/01/1979,0.33
4/01/1979,0.33
5/01/1979,0.13
6/01/1979,0.1
7/01/1979,-0.1
8/01/1979,0.07
9/01/1979,0.52
10/01/1979,0.41
11/01/1979,0.51
12/01/1979,0.56
1/01/1980,0.59
2/01/1980,0.34
3/01/1980,0.23
4/01/1980,0.25
5/01/1980,0.37
6/01/1980,0.54
7/01/1980,0.29
8/01/1980,-0.08
9/01/1980,-0.06
10/01/1980,-0.09
11/01/1980,0.06
12/01/1980,0.06
1/01/1981,-0.5
2/01/1981,-0.69
3/01/1981,-0.52
4/01/1981,-0.36
5/01/1981,-0.35
6/01/1981,-0.21
7/01/1981,-0.46
8/01/1981,-0.49
9/01/1981,-0.16
10/01/1981,-0.12
11/01/1981,-0.22
12/01/1981,-0.14
1/01/1982,0.02
2/01/1982,-0.11
3/01/1982,0.08
4/01/1982,0.22
5/01/1982,0.65
6/01/1982,0.76
7/01/1982,0.52
8/01/1982,0.9
9/01/1982,1.51
10/01/1982,2.03
11/01/1982,2.07
12/01/1982,2.31
1/01/1983,2.25
2/01/1983,1.9
3/01/1983,1.47
4/01/1983,1.05
5/01/1983,1.06
6/01/1983,0.72
7/01/1983,0.07
8/01/1983,-0.21
9/01/1983,-0.5
10/01/1983,-0.89
11/01/1983,-1.09
12/01/1983,-0.8
1/01/1984,-0.54
2/01/1984,-0.12
3/01/1984,-0.23
4/01/1984,-0.39
5/01/1984,-0.46
6/01/1984,-0.61
7/01/1984,-0.29
8/01/1984,-0.08
9/01/1984,-0.26
10/01/1984,-0.5
11/01/1984,-1.02
12/01/1984,-1.23
1/01/1985,-1.09
2/01/1985,-0.72
3/01/1985,-0.75
4/01/1985,-0.76
5/01/1985,-0.68
6/01/1985,-0.64
7/01/1985,-0.49
8/01/1985,-0.47
9/01/1985,-0.61
10/01/1985,-0.43
11/01/1985,-0.26
12/01/1985,-0.43
1/01/1986,-0.52
2/01/1986,-0.47
3/01/1986,-0.23
4/01/1986,-0.02
5/01/1986,-0.2
6/01/1986,0.03
7/01/1986,0.28
8/01/1986,0.46
9/01/1986,0.65
10/01/1986,0.95
11/01/1986,1.07
12/01/1986,1.17
1/01/1987,1.25
2/01/1987,1.28
3/01/1987,1.26
4/01/1987,1.02
5/01/1987,0.93
6/01/1987,1.13
7/01/1987,1.41
8/01/1987,1.72
9/01/1987,1.71
10/01/1987,1.43
11/01/1987,1.33
12/01/1987,1.03
1/01/1988,0.94
2/01/1988,0.28
3/01/1988,0.22
4/01/1988,-0.1
5/01/1988,-0.81
6/01/1988,-1.33
7/01/1988,-1.45
8/01/1988,-1.04
9/01/1988,-0.98
10/01/1988,-1.81
11/01/1988,-1.87
12/01/1988,-1.89
1/01/1989,-1.85
2/01/1989,-1.39
3/01/1989,-1.11
4/01/1989,-0.83
5/01/1989,-0.59
6/01/1989,-0.29
7/01/1989,-0.31
8/01/1989,-0.33
9/01/1989,-0.24
10/01/1989,-0.33
11/01/1989,-0.32
12/01/1989,0.01
1/01/1990,0.07
2/01/1990,0.3
3/01/1990,0.16
4/01/1990,0.28
5/01/1990,0.3
6/01/1990,0.1
7/01/1990,0.32
8/01/1990,0.41
9/01/1990,0.26
10/01/1990,0.37
11/01/1990,0.28
12/01/1990,0.4
1/01/1991,0.37
2/01/1991,0.26
3/01/1991,0.02
4/01/1991,0.32
5/01/1991,0.47
6/01/1991,0.71
7/01/1991,0.88
8/01/1991,0.79
9/01/1991,0.53
10/01/1991,0.76
11/01/1991,1.13
12/01/1991,1.55
1/01/1992,1.65
2/01/1992,1.55
3/01/1992,1.28
4/01/1992,1.27
5/01/1992,1.12
6/01/1992,0.66
7/01/1992,0.27
8/01/1992,0.04
9/01/1992,-0.21
10/01/1992,-0.45
11/01/1992,-0.2
12/01/1992,-0.04
1/01/1993,0.17
2/01/1993,0.33
3/01/1993,0.35
4/01/1993,0.72
5/01/1993,0.81
6/01/1993,0.38
7/01/1993,0.31
8/01/1993,0.09
9/01/1993,0.27
10/01/1993,0.16
11/01/1993,0.13
12/01/1993,0.04
1/01/1994,0.05
2/01/1994,0.1
3/01/1994,0.15
4/01/1994,0.33
5/01/1994,0.37
6/01/1994,0.4
7/01/1994,0.38
8/01/1994,0.46
9/01/1994,0.37
10/01/1994,0.69
11/01/1994,1.16
12/01/1994,1.26
1/01/1995,1.04
2/01/1995,0.81
3/01/1995,0.55
4/01/1995,0.38
5/01/1995,-0.02
6/01/1995,0.11
7/01/1995,-0.04
8/01/1995,-0.51
9/01/1995,-0.68
10/01/1995,-0.77
11/01/1995,-0.96
12/01/1995,-0.88
1/01/1996,-0.83
2/01/1996,-0.85
3/01/1996,-0.59
4/01/1996,-0.38
5/01/1996,-0.26
6/01/1996,-0.2
7/01/1996,-0.26
8/01/1996,-0.18
9/01/1996,-0.39
10/01/1996,-0.3
11/01/1996,-0.3
12/01/1996,-0.57
1/01/1997,-0.58
2/01/1997,-0.38
3/01/1997,-0.19
4/01/1997,0.18
5/01/1997,0.71
6/01/1997,1.17
7/01/1997,1.58
8/01/1997,1.76
9/01/1997,2.06
10/01/1997,2.34
11/01/1997,2.38
12/01/1997,2.35
1/01/1998,2.3
2/01/1998,1.88
3/01/1998,1.33
4/01/1998,0.85
5/01/1998,0.57
6/01/1998,-0.27
7/01/1998,-0.75
8/01/1998,-1
9/01/1998,-1.17
10/01/1998,-1.33
11/01/1998,-1.25
12/01/1998,-1.57
1/01/1999,-1.7
2/01/1999,-1.25
3/01/1999,-0.89
4/01/1999,-0.87
5/01/1999,-0.91
6/01/1999,-1.02
7/01/1999,-0.99
8/01/1999,-1.11
9/01/1999,-1.07
10/01/1999,-1.18
11/01/1999,-1.53
12/01/1999,-1.72
1/01/2000,-1.78
2/01/2000,-1.59
3/01/2000,-1.05
4/01/2000,-0.8
5/01/2000,-0.81
6/01/2000,-0.72
7/01/2000,-0.58
8/01/2000,-0.46
9/01/2000,-0.51
10/01/2000,-0.67
11/01/2000,-0.73
12/01/2000,-0.85
1/01/2001,-0.74
2/01/2001,-0.58
3/01/2001,-0.43
4/01/2001,-0.4
5/01/2001,-0.21
6/01/2001,-0.08
7/01/2001,0.1
8/01/2001,0.04
9/01/2001,-0.08
10/01/2001,-0.12
11/01/2001,-0.26
12/01/2001,-0.36
1/01/2002,-0.18
2/01/2002,0
3/01/2002,0.16
4/01/2002,0.2
5/01/2002,0.52
6/01/2002,0.79
7/01/2002,0.75
8/01/2002,0.73
9/01/2002,0.9
10/01/2002,1.14
11/01/2002,1.39
12/01/2002,1.39
1/01/2003,1.01
2/01/2003,0.8
3/01/2003,0.51
4/01/2003,-0.05
5/01/2003,-0.49
6/01/2003,-0.12
7/01/2003,0.39
8/01/2003,0.41
9/01/2003,0.28
10/01/2003,0.54
11/01/2003,0.4
12/01/2003,0.38
1/01/2004,0.25
2/01/2004,0.23
3/01/2004,0.08
4/01/2004,0.12
5/01/2004,0.12
6/01/2004,0.25
7/01/2004,0.59
8/01/2004,0.74
9/01/2004,0.76
10/01/2004,0.76
11/01/2004,0.65
12/01/2004,0.71
1/01/2005,0.64
2/01/2005,0.34
3/01/2005,0.31
4/01/2005,0.23
5/01/2005,0.39
6/01/2005,0.3
7/01/2005,0.18
8/01/2005,0.19
9/01/2005,-0.03
10/01/2005,-0.07
11/01/2005,-0.61
12/01/2005,-0.88
1/01/2006,-1.01
2/01/2006,-0.68
3/01/2006,-0.52
4/01/2006,-0.26
5/01/2006,0.01
6/01/2006,0.14
7/01/2006,0.1
8/01/2006,0.34
9/01/2006,0.5
10/01/2006,0.69
11/01/2006,1.09
12/01/2006,1.18
1/01/2007,0.72
2/01/2007,0.16
3/01/2007,-0.07
4/01/2007,-0.25
5/01/2007,-0.36
6/01/2007,-0.15
7/01/2007,-0.34
8/01/2007,-0.64
9/01/2007,-0.86
10/01/2007,-1.04
11/01/2007,-1.25
12/01/2007,-1.3
1/01/2008,-1.58
2/01/2008,-1.64
3/01/2008,-1.16
4/01/2008,-0.82
5/01/2008,-0.71
6/01/2008,-0.54
7/01/2008,-0.27
8/01/2008,-0.11
9/01/2008,-0.13
10/01/2008,-0.12
11/01/2008,-0.41
12/01/2008,-0.81
1/01/2009,-0.94
2/01/2009,-0.74
3/01/2009,-0.54
4/01/2009,-0.16
5/01/2009,0.24
6/01/2009,0.43
7/01/2009,0.53
8/01/2009,0.61
9/01/2009,0.7
10/01/2009,0.99
11/01/2009,1.53
12/01/2009,1.78
1/01/2010,1.57
2/01/2010,1.31
3/01/2010,0.99
4/01/2010,0.63
5/01/2010,0.1
6/01/2010,-0.46
7/01/2010,-0.89
8/01/2010,-1.29
9/01/2010,-1.52
10/01/2010,-1.53
11/01/2010,-1.42
12/01/2010,-1.4
1/01/2011,-1.59
2/01/2011,-1.15
3/01/2011,-0.95
4/01/2011,-0.59
5/01/2011,-0.25
6/01/2011,-0.05
7/01/2011,-0.19
8/01/2011,-0.39
9/01/2011,-0.66
10/01/2011,-0.81
11/01/2011,-1.04
12/01/2011,-1.09
1/01/2012,-0.84
2/01/2012,-0.66
3/01/2012,-0.41
4/01/2012,-0.27
5/01/2012,-0.2
6/01/2012,0
7/01/2012,0.1
8/01/2012,0.28
9/01/2012,0.75
10/01/2012,0.56
11/01/2012,0.46
12/01/2012,-0.46
1/01/2013,-0.78
2/01/2013,-0.63
3/01/2013,-0.45
4/01/2013,0
5/01/2013,-0.14
6/01/2013,-0.3
7/01/2013,-0.32
8/01/2013,-0.37
9/01/2013,-0.28
10/01/2013,-0.14
11/01/2013,-0.2
12/01/2013,-0.49
1/01/2014,-0.64
2/01/2014,-0.76
3/01/2014,-0.47
4/01/2014,-0.12
5/01/2014,0.25
6/01/2014,0.12
7/01/2014,0.02
8/01/2014,-0.09
9/01/2014,0.18
10/01/2014,0.46
11/01/2014,0.83
12/01/2014,0.67
1/01/2015,0.53
2/01/2015,0.47
3/01/2015,0.38