Table of
  1. T
  2. NOAA NCEP CPC Indices NHTI East Atlantic/West Russia Pattern
Additional Information

TimeEast Atlantic/West Russia Pattern
months since 1960-01-01
Jan 19502.29
Feb 1950-0.57
Mar 1950-1.8
Apr 1950-2.5
May 19501.41
Jun 19501.27
Jul 19503.01
Aug 19500.52
Sep 1950-0.32
Oct 19500.04
Nov 1950-1.72
Dec 1950-2.31
Jan 1951-0.74
Feb 1951-1.66
Mar 19510.11
Apr 1951-2.31
May 19510.93
Jun 19511.91
Jul 1951-0.86
Aug 1951-3.26
Sep 1951-0.26
Oct 19510.59
Nov 19510.48
Dec 19510.04
Jan 1952-1.07
Feb 1952-1.46
Mar 19520.16
Apr 19520.12
May 19520.24
Jun 1952-0.4
Jul 1952-1.26
Aug 1952-0.95
Sep 1952-1.68
Oct 1952-0.42
Nov 1952-1.55
Dec 1952-0.26
Jan 19530.84
Feb 1953-0.25
Mar 19531.73
Apr 1953-1.66
May 19530.09
Jun 1953-0.71
Jul 1953-0.71
Aug 1953-1.41
Sep 19530.58
Oct 19530.0
Nov 19530.16
Dec 19530.73
Jan 19540.52
Feb 19540.03
Mar 19540.48
Apr 1954-0.29
May 1954-2.13
Jun 19540.58
Jul 1954-1.5
Aug 19540.29
Sep 1954-1.04
Oct 19540.34
Nov 1954-0.51
Dec 1954-0.58
Jan 1955-0.79
Feb 1955-1.69
Mar 19550.25
Apr 1955-0.01
May 19550.92
Jun 19551.43
Jul 19550.55
Aug 19551.44
Sep 1955-1.21
Oct 1955-0.39
Nov 19550.62
Dec 19550.73
Jan 1956-0.74
Feb 1956-0.89
Mar 19560.33
Apr 1956-0.08
May 19560.61
Jun 1956-1.47
Jul 19561.13
Aug 1956-0.16
Sep 19562.61
Oct 19560.53
Nov 1956-1.51
Dec 19560.38
Jan 19570.69
Feb 1957-1.73
Mar 19570.45
Apr 1957-0.48
May 1957-1.42
Jun 19572.45
Jul 1957-0.54
Aug 1957-1.81
Sep 1957-1.79
Oct 19570.57
Nov 19571.15
Dec 19570.46
Jan 1958-0.21
Feb 1958-0.14
Mar 19582.15
Apr 19580.38
May 1958-0.24
Jun 19580.38
Jul 19582.08
Aug 1958-0.81
Sep 19583.31
Oct 19580.55
Nov 19580.56
Dec 1958-0.08
Jan 1959-0.87
Feb 19592.2
Mar 19590.39
Apr 1959-0.07
May 1959-0.12
Jun 19590.82
Jul 19590.57
Aug 19591.03
Sep 19593.68
Oct 19591.84
Nov 1959-0.88
Dec 1959-1.02
Jan 19600.06
Feb 19600.15
Mar 19603.27
Apr 1960-0.6
May 1960-1.3
Jun 19600.02
Jul 19600.86
Aug 19601.58
Sep 1960-0.81
Oct 19600.59
Nov 19600.81
Dec 1960-1.97
Jan 1961-0.52
Feb 19610.19
Mar 1961-0.62
Apr 19611.25
May 1961-0.38
Jun 1961-1.36
Jul 19610.36
Aug 19610.69
Sep 19611.78
Oct 1961-1.05
Nov 1961-0.16
Dec 1961-0.26
Jan 1962-0.62
Feb 1962-0.12
Mar 1962-0.33
Apr 1962-0.29
May 19620.24
Jun 19621.01
Jul 1962-0.42
Aug 19621.4
Sep 1962-0.13
Oct 19621.19
Nov 1962-2.0
Dec 1962-0.08
Jan 1963-0.09
Feb 1963-1.07
Mar 19632.08
Apr 1963-0.46
May 1963-1.84
Jun 19630.97
Jul 19630.85
Aug 1963-0.08
Sep 1963-0.77
Oct 19630.6
Nov 19630.51
Dec 19630.18
Jan 19642.14
Feb 1964-0.23
Mar 19641.42
Apr 19640.93
May 19640.7
Jun 19641.77
Jul 19640.36
Aug 19643.04
Sep 19640.8
Oct 1964-0.42
Nov 19640.86
Dec 1964-0.27
Jan 1965-0.37
Feb 19651.46
Mar 1965-1.84
Apr 19650.67
May 19652.95
Jun 19651.33
Jul 19650.37
Aug 19651.29
Sep 19650.66
Oct 19653.08
Nov 1965-0.4
Dec 1965-1.13
Jan 1966-0.49
Feb 1966-0.02
Mar 19661.5
Apr 19660.08
May 19660.06
Jun 19660.84
Jul 1966-1.23
Aug 19661.87
Sep 19662.66
Oct 19660.87
Nov 1966-2.94
Dec 1966-0.61
Jan 19670.34
Feb 1967-0.52
Mar 1967-0.01
Apr 1967-1.07
May 1967-0.18
Jun 19671.86
Jul 19671.25
Aug 1967-0.8
Sep 19670.83
Oct 1967-0.25
Nov 1967-1.66
Dec 19670.4
Jan 19680.62
Feb 1968-1.26
Mar 19682.16
Apr 1968-0.01
May 19680.16
Jun 19681.26
Jul 19682.57
Aug 1968-0.46
Sep 19680.11
Oct 19681.59
Nov 19682.2
Dec 1968-0.58
Jan 19690.17
Feb 1969-2.12
Mar 19691.61
Apr 19690.56
May 19690.99
Jun 19692.16
Jul 19691.61
Aug 1969-0.21
Sep 1969-0.68
Oct 19692.33
Nov 1969-2.27
Dec 1969-0.96
Jan 1970-0.14
Feb 1970-1.15
Mar 1970-4.17
Apr 1970-0.18
May 1970-0.2
Jun 19700.36
Jul 19701.15
Aug 19702.4
Sep 1970-0.12
Oct 19700.46
Nov 1970-0.35
Dec 19700.81
Jan 1971-1.57
Feb 19710.38
Mar 1971-0.32
Apr 19710.66
May 19710.72
Jun 19710.95
Jul 19710.02
Aug 19711.67
Sep 1971-0.3
Oct 19711.94
Nov 1971-1.35
Dec 19711.63
Jan 19720.56
Feb 1972-1.07
Mar 19722.15
Apr 1972-0.57
May 19720.03
Jun 19720.91
Jul 1972-0.16
Aug 1972-1.63
Sep 19721.22
Oct 19720.47
Nov 1972-0.07
Dec 1972-0.21
Jan 19731.06
Feb 1973-0.89
Mar 1973-0.35
Apr 1973-0.32
May 1973-0.71
Jun 19730.0
Jul 19731.35
Aug 19731.67
Sep 19732.91
Oct 19731.34
Nov 1973-0.34
Dec 1973-0.34
Jan 19740.47
Feb 1974-1.65
Mar 1974-0.86
Apr 19741.3
May 19740.72
Jun 19741.81
Jul 19740.33
Aug 19740.94
Sep 1974-0.55
Oct 1974-1.46
Nov 1974-0.27
Dec 19740.48
Jan 1975-0.22
Feb 19751.35
Mar 19750.85
Apr 1975-1.69
May 1975-0.51
Jun 19750.97
Jul 19750.45
Aug 19752.24
Sep 1975-0.71
Oct 19751.63
Nov 19750.32
Dec 19750.92
Jan 19760.61
Feb 19760.86
Mar 1976-1.58
Apr 1976-0.68
May 1976-0.31
Jun 19762.24
Jul 19761.97
Aug 1976-1.0
Sep 19761.69
Oct 19760.96
Nov 1976-0.48
Dec 1976-1.78
Jan 1977-0.49
Feb 1977-1.73
Mar 19770.45
Apr 1977-1.01
May 1977-1.21
Jun 19770.3
Jul 1977-0.01
Aug 1977-1.13
Sep 19770.88
Oct 19771.01
Nov 1977-0.87
Dec 19770.33
Jan 1978-0.63
Feb 1978-0.98
Mar 1978-0.24
Apr 19781.22
May 19780.1
Jun 1978-0.14
Jul 19780.38
Aug 19781.73
Sep 19780.83
Oct 19781.42
Nov 19781.1
Dec 19780.29
Jan 1979-0.79
Feb 1979-0.2
Mar 1979-0.1
Apr 19790.15
May 1979-0.83
Jun 19790.78
Jul 1979-0.44
Aug 1979-0.42
Sep 1979-0.26
Oct 19790.65
Nov 1979-1.54
Dec 19790.19
Jan 19800.31
Feb 1980-0.3
Mar 1980-1.42
Apr 19800.3
May 19800.24
Jun 1980-1.86
Jul 19800.45
Aug 19801.18
Sep 1980-0.04
Oct 19800.04
Nov 19801.35
Dec 1980-1.17
Jan 19810.11
Feb 1981-1.13
Mar 19810.9
Apr 19811.37
May 19810.07
Jun 1981-0.34
Jul 1981-1.08
Aug 1981-2.09
Sep 1981-0.73
Oct 1981-2.08
Nov 1981-1.23
Dec 1981-1.62
Jan 19820.3
Feb 19821.32
Mar 19820.75
Apr 1982-0.29
May 19820.1
Jun 19822.17
Jul 1982-0.2
Aug 1982-0.11
Sep 1982-0.49
Oct 19820.53
Nov 19820.16
Dec 19820.02
Jan 19831.31
Feb 19830.47
Mar 1983-0.03
Apr 1983-1.85
May 1983-0.36
Jun 19830.75
Jul 1983-0.98
Aug 19830.98
Sep 19830.93
Oct 19830.37
Nov 19831.72
Dec 1983-0.98
Jan 1984-2.06
Feb 1984-1.78
Mar 1984-2.14
Apr 19840.64
May 1984-1.72
Jun 1984-0.17
Jul 19840.32
Aug 19842.08
Sep 1984-0.63
Oct 1984-0.17
Nov 19841.18
Dec 19840.06
Jan 1985-0.34
Feb 19850.38
Mar 19850.18
Apr 19850.48
May 1985-0.14
Jun 19851.06
Jul 19851.71
Aug 19850.63
Sep 19850.54
Oct 19851.69
Nov 1985-0.88
Dec 1985-0.05
Jan 1986-1.11
Feb 1986-0.07
Mar 19861.35
Apr 1986-1.62
May 19860.72
Jun 1986-0.19
Jul 19860.87
Aug 19860.8
Sep 19861.96
Oct 19861.19
Nov 1986-0.05
Dec 19861.42
Jan 19870.82
Feb 1987-0.03
Mar 19870.48
Apr 19871.85
May 1987-0.18
Jun 1987-0.96
Jul 1987-0.71
Aug 1987-0.98
Sep 19871.7
Oct 1987-2.46
Nov 19870.17
Dec 19871.22
Jan 1988-1.09
Feb 1988-1.44
Mar 1988-2.23
Apr 19880.39
May 1988-1.03
Jun 1988-1.14
Jul 1988-0.73
Aug 19880.54
Sep 19880.39
Oct 19880.19
Nov 19881.19
Dec 19880.75
Jan 19891.14
Feb 1989-0.23
Mar 1989-0.28
Apr 1989-1.11
May 1989-0.04
Jun 1989-1.2
Jul 1989-2.04
Aug 19890.05
Sep 1989-1.12
Oct 19890.99
Nov 19890.55
Dec 19890.07
Jan 19900.18
Feb 1990-0.14
Mar 1990-0.03
Apr 1990-1.11
May 19902.25
Jun 1990-0.54
Jul 19900.54
Aug 19900.45
Sep 19900.33
Oct 19900.66
Nov 19901.24
Dec 1990-0.63
Jan 19910.93
Feb 1991-0.67
Mar 19910.3
Apr 1991-1.28
May 1991-0.81
Jun 1991-1.17
Jul 19911.35
Aug 19910.43
Sep 19910.48
Oct 1991-0.86
Nov 1991-0.69
Dec 19911.99
Jan 19922.49
Feb 19920.92
Mar 1992-0.7
Apr 19920.77
May 19921.53
Jun 19921.55
Jul 19921.15
Aug 19920.99
Sep 1992-1.4
Oct 19921.53
Nov 19920.13
Dec 19920.36
Jan 19930.64
Feb 19931.83
Mar 19930.43
Apr 19930.39
May 1993-0.87
Jun 19930.87
Jul 1993-0.21
Aug 1993-0.33
Sep 19932.23
Oct 19930.99
Nov 19930.58
Dec 1993-0.95
Jan 1994-1.21
Feb 19941.14
Mar 1994-1.77
Apr 1994-0.82
May 19940.82
Jun 1994-0.15
Jul 19941.69
Aug 19940.79
Sep 1994-0.82
Oct 1994-0.25
Nov 19942.17
Dec 19941.35
Jan 1995-1.11
Feb 1995-0.6
Mar 19950.56
Apr 1995-1.18
May 1995-0.82
Jun 19950.15
Jul 19950.99
Aug 19950.83
Sep 1995-1.2
Oct 19950.54
Nov 19950.52
Dec 19950.69
Jan 1996-0.47
Feb 1996-1.29
Mar 1996-1.23
Apr 19960.72
May 19960.01
Jun 1996-0.5
Jul 1996-0.67
Aug 19960.88
Sep 19961.47
Oct 19960.14
Nov 1996-2.39
Dec 1996-0.82
Jan 19971.68
Feb 19970.61
Mar 1997-0.55
Apr 19971.52
May 19970.73
Jun 19971.26
Jul 19971.14
Aug 1997-0.57
Sep 19970.31
Oct 19971.3
Nov 19971.52
Dec 19970.26
Jan 19980.55
Feb 19982.72
Mar 1998-1.11
Apr 19980.55
May 1998-0.6
Jun 1998-1.56
Jul 1998-1.25
Aug 19980.12
Sep 19980.54
Oct 1998-0.53
Nov 1998-0.22
Dec 1998-0.67
Jan 1999-0.89
Feb 1999-0.57
Mar 19991.39
Apr 19990.42
May 19991.66
Jun 1999-0.74
Jul 19990.8
Aug 19991.17
Sep 1999-0.5
Oct 1999-0.61
Nov 1999-0.43
Dec 1999-0.93
Jan 20000.65
Feb 20000.1
Mar 2000-1.13
Apr 2000-0.95
May 20000.96
Jun 2000-0.34
Jul 2000-1.64
Aug 20001.17
Sep 20001.19
Oct 2000-1.45
Nov 2000-0.9
Dec 2000-0.77
Jan 2001-0.85
Feb 20010.12
Mar 2001-0.35
Apr 2001-0.59
May 20011.48
Jun 20010.48
Jul 2001-0.62
Aug 20010.53
Sep 2001-1.08
Oct 20010.54
Nov 2001-0.67
Dec 20010.46
Jan 20020.7
Feb 2002-0.56
Mar 20020.39
Apr 2002-0.38
May 20020.52
Jun 20020.18
Jul 2002-0.65
Aug 20020.09
Sep 20020.46
Oct 20020.78
Nov 20020.45
Dec 20021.6
Jan 2003-0.39
Feb 20030.87
Mar 20031.24
Apr 20030.31
May 2003-0.85
Jun 20031.79
Jul 2003-0.23
Aug 2003-1.58
Sep 2003-1.04
Oct 2003-0.58
Nov 20030.32
Dec 20030.31
Jan 2004-0.35
Feb 20040.63
Mar 20040.87
Apr 20040.9
May 2004-0.12
Jun 2004-0.06
Jul 2004-0.28
Aug 2004-1.22
Sep 2004-0.17
Oct 2004-0.43
Nov 20040.1
Dec 20040.24
Jan 20050.08
Feb 2005-0.65
Mar 20050.4
Apr 2005-0.02
May 2005-1.3
Jun 20050.36
Jul 20050.22
Aug 2005-1.6
Sep 2005-0.91
Oct 2005-0.88
Nov 2005-1.14
Dec 2005-0.71
Jan 20060.82
Feb 2006-0.61
Mar 20061.52
Apr 2006-0.86
May 2006-0.93
Jun 2006-1.07
Jul 20061.01
Aug 2006-0.97
Sep 20060.41
Oct 20060.5
Nov 2006-0.27
Dec 20061.31
Jan 20070.0
Feb 20070.74
Mar 2007-0.02
Apr 20071.53
May 20070.03
Jun 20070.11
Jul 2007-0.3
Aug 2007-1.7
Sep 2007-0.77
Oct 2007-1.07
Nov 2007-0.5
Dec 20070.28
Jan 2008-0.64
Feb 20080.12
Mar 2008-0.47
Apr 2008-0.38
May 20080.71
Jun 20080.06
Jul 20080.53
Aug 2008-0.28
Sep 2008-0.77
Oct 2008-0.9
Nov 2008-1.28
Dec 2008-1.46
Jan 2009-1.33
Feb 2009-1.17
Mar 20090.18
Apr 20091.26
May 20090.21
Jun 20091.23
Jul 20090.7
Aug 2009-0.3
Sep 2009-0.22
Oct 20090.34
Nov 2009-0.42
Dec 2009-0.82
Jan 2010-0.55
Feb 2010-1.02
Mar 20101.08
Apr 2010-0.67
May 2010-2.05
Jun 2010-1.91
Jul 2010-1.42
Aug 2010-0.77
Sep 2010-1.08
Oct 2010-0.03
Nov 2010-0.96
Dec 2010-1.99
Jan 2011-0.38
Feb 20110.58
Mar 20110.08
Apr 20111.23
May 2011-1.52
Jun 2011-0.33
Jul 2011-0.79
Aug 20110.97
Sep 2011-0.29
Oct 20110.12
Nov 20112.08
Dec 2011-0.5
Jan 2012-0.46
Feb 2012-0.64
Mar 20121.35
Apr 2012-1.59
May 2012-0.47
Jun 20120.01
Jul 2012-1.43
Aug 20121.15
Sep 2012-0.49
Oct 2012-1.01
Nov 2012-0.59
Dec 2012-0.88
Jan 20130.46
Feb 2013-1.28
Mar 20132.31
Apr 2013-0.4
May 2013-2.06
Jun 2013-2.3
Jul 2013-0.17
Aug 2013-1.94
Sep 2013-0.58
Oct 20130.63
Nov 2013-0.88
Dec 2013-0.36
Jan 2014-1.32
Feb 2014-1.93
Mar 2014-0.11
Apr 20141.23
May 2014-1.45
Jun 20140.03
Jul 2014-0.31
Aug 2014-1.69
Sep 20140.47
Oct 2014-0.37
Nov 20141.28
Dec 2014-0.44
Jan 2015-0.24
Feb 2015-0.92
Mar 20150.27
Apr 20151.12
May 2015-1.5
Jun 2015-0.78
Jul 20152.01
Aug 2015-0.37
Sep 2015-1.67
Oct 20150.59
Nov 20150.56
Dec 20151.28
Jan 2016-0.5
Feb 2016-2.39
Mar 20160.26
Apr 2016-0.5
May 2016-1.99
Jun 2016-1.85
Jul 2016-1.01
Aug 2016-3.3
Sep 20160.13
Oct 2016-1.33
Nov 2016-0.93
Dec 20161.52
Jan 20170.63
Feb 20171.14
Mar 2017-1.02
Apr 20170.71
May 20171.48
Jun 20170.34
Jul 2017-0.58
Aug 2017-2.93
Sep 2017-2.52
Oct 2017-0.02
Nov 2017-1.21
Dec 2017-1.63
Jan 2018-1.62
Feb 2018-1.4
Mar 20184.03
Apr 20180.49
May 2018-1.45
Jun 2018-0.24
Jul 2018-2.16
Aug 2018-0.47
Sep 2018-1.76
Oct 20180.36
Nov 20181.51
Dec 2018-0.43
Jan 20190.72
Feb 20190.45
Mar 2019-1.15
Apr 20190.82
May 2019-0.7
Jun 20190.3
Jul 20191.02
Aug 2019-1.68
Sep 20190.79
Oct 2019-0.52
Nov 2019-0.59
Dec 20190.15
Jan 20200.66
Feb 2020-0.06
Mar 20200.57
Apr 20201.82
May 2020-0.55
Jun 2020-2.01
Jul 2020-0.68
Aug 20200.64
Sep 2020-0.94
Oct 2020-1.82
Nov 20200.08
Dec 2020-1.11
Jan 2021-1.34
Feb 20210.83
Mar 20212.98
Apr 2021-0.43
May 2021-1.22
Jun 2021-1.77
Jul 2021-0.49
Aug 2021-2.37
Sep 20210.53
Oct 2021-0.62
Nov 20210.01
Dec 2021-0.04
Jan 20221.11
Feb 2022-0.92
Mar 20221.41
Apr 2022-0.09
May 20220.9
Jun 2022-0.51
Jul 2022-1.17
Aug 2022-3.43
Sep 2022-1.05
Oct 2022-0.74
Nov 20220.8
Dec 2022-1.15
Jan 2023-0.61
Feb 20231.54
Mar 20231.99
Apr 2023-0.22
May 2023-2.21
Jun 20230.37
Jul 2023-1.83
Aug 2023-2.35
Sep 2023-2.14
Oct 20230.61
Nov 20230.13
Dec 20230.08
Jan 20240.55
Feb 2024-0.21
Mar 20241.08
Apr 2024-0.74