Table of
  1. T
  2. NOAA NCEP CPC Indices NHTI Polar - Eurasia Pattern
Additional Information

TimePolar - Eurasia Pattern
months since 1960-01-01
Jan 1950-0.71
Feb 19501.25
Mar 19500.78
Apr 19500.1
May 19500.55
Jun 19500.65
Jul 1950-0.53
Aug 1950-1.03
Sep 1950-1.69
Oct 1950-0.8
Nov 19500.95
Dec 19500.74
Jan 19511.79
Feb 19511.23
Mar 1951-1.29
Apr 1951-0.38
May 1951-0.19
Jun 19511.32
Jul 19510.47
Aug 19510.17
Sep 1951-0.8
Oct 1951-0.28
Nov 19512.32
Dec 19510.47
Jan 1952-0.27
Feb 19520.02
Mar 19520.25
Apr 19520.13
May 1952-0.81
Jun 1952-1.61
Jul 19520.94
Aug 19521.26
Sep 1952-0.77
Oct 19520.16
Nov 1952-0.05
Dec 19520.61
Jan 1953-0.06
Feb 19531.09
Mar 19532.08
Apr 1953-0.01
May 1953-0.81
Jun 1953-1.73
Jul 1953-0.42
Aug 1953-1.4
Sep 19531.25
Oct 1953-0.58
Nov 1953-1.45
Dec 19531.36
Jan 19540.55
Feb 19540.95
Mar 19542.58
Apr 1954-1.44
May 1954-1.95
Jun 1954-1.06
Jul 1954-1.37
Aug 1954-0.19
Sep 19540.23
Oct 1954-0.46
Nov 19540.79
Dec 19543.08
Jan 19551.39
Feb 1955-0.26
Mar 1955-1.13
Apr 19550.43
May 1955-0.09
Jun 1955-1.36
Jul 19550.19
Aug 19550.54
Sep 1955-1.81
Oct 19550.64
Nov 19551.0
Dec 19550.14
Jan 1956-0.04
Feb 19560.24
Mar 19561.53
Apr 1956-0.7
May 19560.3
Jun 1956-0.53
Jul 1956-2.37
Aug 1956-0.96
Sep 19560.52
Oct 19560.36
Nov 1956-1.13
Dec 19560.42
Jan 19570.91
Feb 1957-2.27
Mar 1957-0.37
Apr 19570.07
May 1957-0.1
Jun 1957-0.88
Jul 1957-2.35
Aug 1957-1.38
Sep 1957-0.1
Oct 1957-1.01
Nov 1957-0.86
Dec 19570.69
Jan 1958-0.38
Feb 1958-0.26
Mar 1958-0.4
Apr 19580.26
May 19580.07
Jun 19580.97
Jul 19580.02
Aug 19581.72
Sep 19580.58
Oct 19581.26
Nov 1958-0.45
Dec 1958-1.73
Jan 1959-0.09
Feb 19591.99
Mar 19591.84
Apr 1959-0.94
May 1959-0.89
Jun 1959-1.22
Jul 1959-0.47
Aug 1959-1.09
Sep 1959-0.59
Oct 1959-0.81
Nov 1959-0.23
Dec 19592.33
Jan 1960-1.42
Feb 19600.08
Mar 19600.2
Apr 1960-0.49
May 1960-1.28
Jun 1960-0.45
Jul 1960-2.94
Aug 1960-0.55
Sep 1960-1.09
Oct 19600.45
Nov 19600.33
Dec 1960-0.07
Jan 19610.37
Feb 19611.23
Mar 19610.12
Apr 1961-0.59
May 19611.04
Jun 1961-0.49
Jul 1961-2.07
Aug 1961-1.7
Sep 19610.18
Oct 19610.02
Nov 19611.46
Dec 19612.11
Jan 19621.78
Feb 19620.83
Mar 1962-0.89
Apr 19620.81
May 19620.3
Jun 1962-0.57
Jul 1962-0.15
Aug 1962-0.48
Sep 1962-0.38
Oct 19620.05
Nov 1962-0.09
Dec 19620.44
Jan 19632.07
Feb 19633.53
Mar 19631.11
Apr 19631.22
May 1963-0.23
Jun 1963-0.07
Jul 19630.96
Aug 1963-1.98
Sep 19630.49
Oct 19630.54
Nov 19631.29
Dec 1963-0.56
Jan 19641.7
Feb 19641.12
Mar 19642.01
Apr 19640.6
May 19641.71
Jun 19640.4
Jul 19640.52
Aug 1964-0.88
Sep 1964-0.59
Oct 19640.2
Nov 1964-1.13
Dec 19640.43
Jan 19650.85
Feb 1965-1.02
Mar 19651.92
Apr 19650.57
May 19650.64
Jun 19650.62
Jul 1965-1.04
Aug 1965-1.55
Sep 1965-1.06
Oct 19651.6
Nov 1965-1.82
Dec 19651.22
Jan 19660.96
Feb 1966-1.28
Mar 1966-0.55
Apr 1966-0.73
May 19662.35
Jun 19660.68
Jul 1966-0.53
Aug 19660.79
Sep 19660.76
Oct 19660.93
Nov 19660.72
Dec 19661.35
Jan 19671.11
Feb 19672.46
Mar 1967-0.44
Apr 19671.63
May 19670.98
Jun 1967-0.33
Jul 1967-0.18
Aug 1967-1.24
Sep 1967-0.12
Oct 19671.47
Nov 19672.19
Dec 1967-0.62
Jan 1968-0.88
Feb 19681.86
Mar 19680.98
Apr 1968-0.36
May 19681.62
Jun 19681.5
Jul 19680.28
Aug 19681.26
Sep 1968-0.84
Oct 19680.62
Nov 19680.4
Dec 19681.36
Jan 1969-1.55
Feb 19690.19
Mar 19691.19
Apr 19690.6
May 1969-0.72
Jun 19690.52
Jul 1969-0.4
Aug 1969-0.68
Sep 19690.35
Oct 1969-0.84
Nov 19691.18
Dec 1969-0.06
Jan 1970-0.06
Feb 1970-1.74
Mar 1970-0.27
Apr 19701.11
May 19700.17
Jun 19701.19
Jul 19700.05
Aug 1970-0.4
Sep 1970-0.77
Oct 19700.53
Nov 19700.48
Dec 19700.55
Jan 19712.6
Feb 1971-1.85
Mar 19710.42
Apr 1971-0.81
May 19711.16
Jun 19710.19
Jul 19710.19
Aug 1971-0.36
Sep 19710.38
Oct 19710.93
Nov 19711.43
Dec 1971-0.12
Jan 1972-0.5
Feb 19721.55
Mar 1972-0.45
Apr 19720.67
May 19720.13
Jun 1972-2.51
Jul 1972-0.03
Aug 19720.22
Sep 1972-0.84
Oct 19720.13
Nov 1972-1.45
Dec 19720.06
Jan 19731.2
Feb 19731.37
Mar 19730.44
Apr 1973-1.14
May 19730.99
Jun 19730.91
Jul 1973-1.37
Aug 1973-0.22
Sep 19730.0
Oct 19730.5
Nov 1973-1.51
Dec 1973-0.45
Jan 1974-1.83
Feb 19740.46
Mar 19740.79
Apr 19740.07
May 1974-0.22
Jun 1974-0.91
Jul 1974-0.77
Aug 19740.8
Sep 1974-0.31
Oct 1974-1.73
Nov 19740.48
Dec 19742.55
Jan 19750.42
Feb 19750.67
Mar 19751.21
Apr 19750.61
May 19750.53
Jun 19750.48
Jul 19750.23
Aug 19750.19
Sep 19750.46
Oct 19750.62
Nov 19750.21
Dec 19751.69
Jan 1976-0.24
Feb 19760.87
Mar 1976-0.47
Apr 19760.77
May 1976-0.28
Jun 1976-1.08
Jul 1976-0.35
Aug 19760.53
Sep 19760.26
Oct 19760.41
Nov 19762.79
Dec 19760.89
Jan 1977-2.48
Feb 1977-0.17
Mar 19770.32
Apr 19770.97
May 19770.33
Jun 1977-0.18
Jul 1977-0.83
Aug 1977-0.19
Sep 19770.2
Oct 1977-0.54
Nov 19770.21
Dec 19770.88
Jan 19781.77
Feb 19781.69
Mar 19780.26
Apr 1978-0.22
May 1978-1.04
Jun 1978-0.31
Jul 1978-0.68
Aug 1978-1.68
Sep 1978-0.13
Oct 19780.1
Nov 19781.23
Dec 1978-0.28
Jan 19790.71
Feb 19791.81
Mar 1979-1.87
Apr 19790.08
May 19790.77
Jun 1979-0.16
Jul 1979-1.28
Aug 1979-1.53
Sep 1979-0.65
Oct 1979-0.27
Nov 19790.74
Dec 19791.67
Jan 1980-0.92
Feb 19800.99
Mar 1980-0.52
Apr 1980-0.28
May 1980-0.37
Jun 19801.39
Jul 1980-0.66
Aug 19800.19
Sep 1980-0.02
Oct 1980-0.11
Nov 19800.04
Dec 1980-0.43
Jan 19811.91
Feb 19810.17
Mar 1981-0.83
Apr 1981-0.77
May 19811.3
Jun 19810.02
Jul 19810.52
Aug 1981-2.21
Sep 1981-0.64
Oct 1981-1.91
Nov 1981-0.49
Dec 19810.07
Jan 19820.74
Feb 19820.1
Mar 1982-0.39
Apr 19820.59
May 1982-0.11
Jun 19820.46
Jul 19820.37
Aug 19820.48
Sep 19821.16
Oct 1982-0.19
Nov 1982-0.98
Dec 1982-0.81
Jan 1983-0.79
Feb 19831.18
Mar 1983-1.12
Apr 19830.39
May 1983-0.37
Jun 1983-0.48
Jul 1983-0.01
Aug 19831.2
Sep 1983-0.8
Oct 19830.42
Nov 19830.7
Dec 1983-1.28
Jan 1984-0.9
Feb 19840.24
Mar 19841.24
Apr 19840.78
May 19840.82
Jun 1984-0.74
Jul 1984-1.53
Aug 1984-0.98
Sep 1984-0.87
Oct 1984-1.76
Nov 1984-0.58
Dec 19840.6
Jan 19850.05
Feb 1985-1.72
Mar 19851.48
Apr 1985-0.38
May 19850.03
Jun 1985-1.21
Jul 1985-1.98
Aug 1985-0.19
Sep 1985-1.24
Oct 19850.23
Nov 1985-0.49
Dec 1985-2.86
Jan 19860.02
Feb 19861.52
Mar 19861.55
Apr 19860.87
May 1986-0.86
Jun 19861.57
Jul 1986-0.31
Aug 1986-0.66
Sep 19861.0
Oct 19860.73
Nov 1986-0.3
Dec 1986-0.06
Jan 19870.17
Feb 19870.2
Mar 19870.21
Apr 1987-1.11
May 1987-0.45
Jun 19870.89
Jul 19870.59
Aug 1987-0.09
Sep 1987-1.26
Oct 19870.78
Nov 19870.16
Dec 1987-1.26
Jan 19880.66
Feb 1988-1.07
Mar 19880.89
Apr 19880.81
May 1988-2.31
Jun 1988-0.6
Jul 1988-0.49
Aug 1988-1.18
Sep 19881.33
Oct 19881.84
Nov 1988-0.49
Dec 19880.8
Jan 19890.8
Feb 19891.43
Mar 19890.15
Apr 19890.22
May 1989-0.19
Jun 19891.32
Jul 19891.1
Aug 19890.31
Sep 19890.78
Oct 19890.78
Nov 19891.89
Dec 1989-0.47
Jan 1990-2.16
Feb 1990-0.67
Mar 19900.81
Apr 19900.98
May 19902.23
Jun 1990-1.36
Jul 1990-1.39
Aug 1990-0.19
Sep 1990-2.21
Oct 19901.47
Nov 19900.48
Dec 19900.87
Jan 1991-0.64
Feb 19910.58
Mar 1991-0.23
Apr 19912.01
May 19910.23
Jun 1991-0.89
Jul 19910.32
Aug 19910.82
Sep 1991-0.28
Oct 19910.95
Nov 19911.67
Dec 19911.74
Jan 19921.11
Feb 19920.45
Mar 19920.83
Apr 1992-1.62
May 19921.81
Jun 19921.64
Jul 19921.9
Aug 19920.79
Sep 1992-1.4
Oct 19921.14
Nov 1992-0.75
Dec 19920.96
Jan 19931.12
Feb 19931.27
Mar 19932.1
Apr 1993-0.11
May 1993-0.05
Jun 1993-1.77
Jul 1993-0.28
Aug 1993-2.02
Sep 1993-0.69
Oct 19930.54
Nov 19930.87
Dec 1993-0.04
Jan 1994-0.55
Feb 1994-0.63
Mar 19940.33
Apr 1994-0.82
May 19940.96
Jun 1994-0.64
Jul 19940.41
Aug 19941.15
Sep 19940.09
Oct 19941.01
Nov 19940.19
Dec 19941.43
Jan 19950.44
Feb 1995-0.27
Mar 1995-0.06
Apr 1995-1.54
May 19950.16
Jun 19950.74
Jul 19951.26
Aug 1995-0.19
Sep 19950.21
Oct 1995-0.01
Nov 19950.72
Dec 19950.95
Jan 19960.63
Feb 19962.06
Mar 19961.21
Apr 1996-1.53
May 19961.31
Jun 1996-0.65
Jul 19961.22
Aug 19960.16
Sep 1996-0.93
Oct 1996-0.26
Nov 19960.47
Dec 1996-0.99
Jan 19972.06
Feb 1997-0.18
Mar 1997-1.52
Apr 19970.91
May 1997-0.54
Jun 19970.76
Jul 1997-0.8
Aug 19970.97
Sep 1997-0.29
Oct 19970.29
Nov 19971.18
Dec 19971.62
Jan 1998-1.75
Feb 19980.62
Mar 19980.05
Apr 1998-0.07
May 19981.49
Jun 1998-0.24
Jul 1998-1.15
Aug 1998-2.0
Sep 1998-0.14
Oct 1998-1.18
Nov 1998-3.44
Dec 1998-0.49
Jan 1999-0.47
Feb 19990.11
Mar 1999-1.35
Apr 19990.29
May 1999-1.6
Jun 19990.8
Jul 19991.76
Aug 19990.29
Sep 1999-0.03
Oct 1999-0.08
Nov 1999-1.06
Dec 19990.41
Jan 2000-0.18
Feb 2000-1.55
Mar 2000-1.52
Apr 2000-0.29
May 2000-0.24
Jun 20001.6
Jul 2000-0.25
Aug 2000-0.22
Sep 20000.25
Oct 2000-0.64
Nov 20000.42
Dec 2000-1.17
Jan 2001-0.55
Feb 2001-1.28
Mar 2001-0.55
Apr 20011.21
May 2001-0.12
Jun 2001-1.44
Jul 20010.49
Aug 2001-0.36
Sep 2001-0.69
Oct 20010.73
Nov 20010.31
Dec 20010.6
Jan 20020.15
Feb 20020.37
Mar 2002-1.07
Apr 20020.95
May 20020.21
Jun 2002-0.29
Jul 20020.37
Aug 2002-0.06
Sep 20021.73
Oct 2002-0.84
Nov 2002-0.04
Dec 2002-0.3
Jan 20031.24
Feb 20031.09
Mar 20031.01
Apr 20030.8
May 20030.04
Jun 2003-0.4
Jul 2003-0.77
Aug 2003-1.22
Sep 20031.43
Oct 2003-0.89
Nov 2003-0.69
Dec 20030.67
Jan 2004-0.23
Feb 2004-1.2
Mar 2004-1.13
Apr 2004-1.73
May 2004-1.2
Jun 20040.14
Jul 2004-1.6
Aug 20041.48
Sep 2004-0.66
Oct 2004-0.49
Nov 20040.43
Dec 20040.02
Jan 2005-1.18
Feb 2005-0.51
Mar 20050.8
Apr 20050.38
May 2005-0.37
Jun 2005-1.16
Jul 20050.24
Aug 20050.37
Sep 20051.34
Oct 20050.31
Nov 20050.25
Dec 20050.03
Jan 2006-1.86
Feb 20060.54
Mar 2006-0.9
Apr 2006-1.6
May 20060.07
Jun 2006-0.25
Jul 20060.55
Aug 20060.12
Sep 20061.73
Oct 2006-0.5
Nov 2006-0.97
Dec 20060.54
Jan 2007-0.19
Feb 2007-1.14
Mar 2007-0.08
Apr 2007-0.16
May 20070.01
Jun 2007-0.44
Jul 2007-0.62
Aug 20071.67
Sep 20070.89
Oct 2007-0.81
Nov 2007-0.65
Dec 2007-0.15
Jan 2008-0.35
Feb 20080.26
Mar 2008-0.07
Apr 2008-0.55
May 20080.07
Jun 20080.37
Jul 2008-0.54
Aug 20080.77
Sep 2008-0.31
Oct 20081.37
Nov 20080.58
Dec 2008-0.48
Jan 20090.57
Feb 2009-0.08
Mar 2009-0.71
Apr 20091.5
May 2009-0.59
Jun 20090.15
Jul 2009-0.83
Aug 2009-0.15
Sep 20090.46
Oct 2009-1.98
Nov 2009-0.56
Dec 2009-1.41
Jan 20100.16
Feb 2010-1.88
Mar 2010-1.16
Apr 2010-0.4
May 2010-1.75
Jun 20102.11
Jul 20101.45
Aug 20101.14
Sep 20100.05
Oct 2010-1.06
Nov 20101.17
Dec 20100.49
Jan 2011-0.4
Feb 20110.12
Mar 20110.95
Apr 2011-0.33
May 2011-0.58
Jun 2011-1.05
Jul 2011-0.31
Aug 2011-0.29
Sep 2011-1.13
Oct 20110.3
Nov 2011-0.4
Dec 20110.73
Jan 2012-2.34
Feb 20120.19
Mar 2012-1.42
Apr 2012-0.97
May 2012-0.11
Jun 2012-1.75
Jul 20121.01
Aug 20120.98
Sep 2012-0.7
Oct 2012-0.17
Nov 2012-0.19
Dec 20120.35
Jan 2013-1.86
Feb 20130.34
Mar 2013-1.9
Apr 2013-1.64
May 20130.02
Jun 2013-0.01
Jul 2013-0.3
Aug 2013-0.03
Sep 2013-1.59
Oct 20130.75
Nov 20132.58
Dec 2013-0.83
Jan 2014-0.79
Feb 2014-1.86
Mar 20140.04
Apr 20141.02
May 20140.98
Jun 2014-0.01
Jul 2014-0.93
Aug 20141.57
Sep 20141.1
Oct 2014-1.03
Nov 20141.75
Dec 2014-0.93
Jan 2015-0.03
Feb 20152.09
Mar 20150.68
Apr 2015-0.88
May 20150.5
Jun 2015-0.2
Jul 20150.39
Aug 20150.13
Sep 2015-0.13
Oct 2015-0.47
Nov 2015-0.66
Dec 20150.58
Jan 2016-2.63
Feb 2016-2.33
Mar 2016-0.23
Apr 2016-1.59
May 2016-0.36
Jun 2016-1.07
Jul 2016-0.24
Aug 20162.43
Sep 2016-1.31
Oct 2016-2.94
Nov 2016-2.78
Dec 2016-1.1
Jan 20170.96
Feb 2017-0.38
Mar 20170.73
Apr 2017-1.37
May 20170.46
Jun 2017-0.11
Jul 2017-0.05
Aug 20171.83
Sep 2017-1.66
Oct 2017-1.17
Nov 2017-2.23
Dec 2017-1.95
Jan 2018-1.48
Feb 2018-2.24
Mar 20180.07
Apr 2018-1.3
May 2018-0.28
Jun 2018-0.93
Jul 2018-0.15
Aug 20180.01
Sep 20180.48
Oct 2018-1.31
Nov 20180.76
Dec 20181.54
Jan 20190.08
Feb 20190.69
Mar 20190.93
Apr 2019-0.37
May 2019-0.78
Jun 2019-0.46
Jul 2019-1.48
Aug 20190.33
Sep 2019-0.07
Oct 2019-0.2
Nov 20190.98
Dec 2019-0.43
Jan 20200.16
Feb 2020-0.39
Mar 20201.75
Apr 20200.45
May 2020-1.11
Jun 2020-0.24
Jul 2020-0.08
Aug 2020-0.51
Sep 20200.32
Oct 2020-1.01
Nov 2020-0.57
Dec 20200.09
Jan 2021-1.59
Feb 2021-3.23
Mar 20210.63
Apr 2021-0.2
May 2021-0.5
Jun 20210.86
Jul 20210.84
Aug 2021-0.51
Sep 2021-0.96
Oct 2021-0.52
Nov 20210.51
Dec 2021-0.51
Jan 2022-0.35
Feb 2022-1.63
Mar 2022-0.52
Apr 2022-1.16
May 2022-0.25
Jun 2022-1.28
Jul 20220.03
Aug 2022-0.35
Sep 2022-0.57
Oct 20221.12
Nov 2022-0.3
Dec 2022-1.2
Jan 2023-1.07
Feb 2023-0.93
Mar 20230.9
Apr 2023-0.7
May 20231.91
Jun 20230.18
Jul 20230.04
Aug 2023-1.05
Sep 20230.78
Oct 2023-0.07
Nov 20230.3
Dec 2023-0.52
Jan 2024-0.91
Feb 2024-1.84
Mar 20240.24
Apr 20240.42