850 MB TRADE WIND INDEX(135W-120W)5N 5S EAST PACIFIC ORIGINAL DATA YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 11.2 9.2 8.5 6.0 6.6 9.1 7.1 6.1 5.8 5.8 7.7 9.2 1980 10.1 10.2 9.1 8.5 9.3 10.2 11.4 11.1 9.9 10.7 10.2 12.0 1981 13.1 12.7 9.1 9.3 10.0 9.5 11.6 9.0 10.6 8.8 11.0 12.1 1982 11.6 11.7 9.8 7.0 8.0 9.0 10.2 10.5 6.3 6.7 6.0 5.9 1983 6.0 5.1 1.7 2.0 1.2 5.7 8.2 10.2 9.8 10.3 10.2 12.5 1984 12.2 9.2 7.1 7.1 9.3 11.5 12.3 10.1 7.6 10.0 9.6 13.5 1985 11.8 13.3 11.1 9.8 11.7 9.9 9.8 10.3 9.5 7.0 9.7 10.5 1986 13.2 11.0 10.1 9.3 8.5 10.0 9.7 8.2 8.1 6.5 8.6 9.7 1987 11.0 9.0 5.4 3.9 4.1 9.0 7.1 9.5 9.0 8.2 10.2 11.7 1988 12.5 11.1 10.1 8.0 11.8 11.0 13.2 9.6 10.6 10.8 10.5 12.7 1989 12.3 9.7 9.6 10.5 9.8 7.9 10.3 9.4 6.4 9.6 9.2 9.3 1990 12.6 10.2 10.0 8.2 7.6 8.0 8.3 9.3 7.4 6.7 9.3 9.1 1991 10.5 11.3 7.8 7.9 6.3 6.8 8.9 9.5 6.0 6.8 8.0 8.7 1992 6.4 8.4 6.2 6.3 6.9 8.4 9.3 9.2 6.1 9.5 6.7 9.7 1993 9.5 9.6 8.1 5.7 6.2 7.2 9.5 7.1 6.7 7.5 8.4 10.5 1994 10.2 10.8 8.8 9.3 8.2 9.4 9.9 8.7 6.6 5.0 6.2 9.2 1995 9.8 9.0 9.5 7.7 8.4 7.1 8.9 8.2 6.9 7.0 10.3 9.5 1996 11.8 13.1 9.4 8.5 10.1 8.4 9.7 8.2 8.5 7.2 9.3 12.9 1997 9.8 11.4 8.2 6.2 7.4 3.7 8.1 6.1 2.7 1.6 2.1 5.4 1998 5.3 2.0 2.0 0.1 6.5 6.6 9.4 9.4 6.5 8.8 9.2 11.0 1999 11.1 8.3 6.4 6.0 7.2 6.9 9.6 8.1 6.1 7.9 10.2 11.5 2000 12.8 9.7 5.8 6.7 6.4 7.6 7.9 9.6 5.6 8.6 8.3 10.5 2001 8.9 10.2 5.9 7.4 7.4 8.5 8.6 10.2 7.7 7.3 9.4 10.0 2002 9.8 8.9 8.3 7.8 6.1 7.8 6.9 8.6 6.1 7.2 7.8 8.4 2003 10.0 9.1 6.9 7.6 8.1 6.1 7.8 7.9 6.1 6.3 7.3 9.7 2004 9.8 9.5 8.7 7.5 7.5 8.9 6.9 8.8 6.7 7.0 7.6 9.7 2005 10.9 10.9 7.1 7.3 7.0 6.4 8.4 7.2 7.1 6.7 9.2 9.8 2006 9.2 9.0 9.1 7.3 6.0 8.1 6.4 6.4 7.6 6.4 5.9 9.0 2007 9.6 9.1 8.5 6.3 6.9 8.6 7.9 9.4 10.0 7.9 10.7 10.2 2008 10.6 8.9 6.3 5.4 5.7 6.8 7.6 7.0 6.9 6.2 8.7 9.6 2009 9.4 9.9 8.4 7.8 7.2 6.0 8.7 7.3 8.1 5.2 7.1 7.1 2010 9.7 7.0 6.3 5.9 6.4 7.5 8.5 8.2 6.8 8.4 7.7 10.8 2011 8.5 7.6 7.5-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2012-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2013-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2014-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2015-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2016-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2017-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2018-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2019-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2020-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 850 MB TRADE WIND INDEX(135W-120W)5N 5S EAST PACIFIC ANOMALY YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 0.4 -0.9 0.1 -1.4 -1.3 0.3 -2.6 -3.1 -2.0 -2.3 -1.2 -1.1 1980 -0.7 0.1 0.7 1.1 1.4 1.4 1.7 1.9 2.1 2.6 1.3 1.7 1981 2.3 2.6 0.7 1.9 2.1 0.7 1.9 -0.2 2.8 0.7 2.1 1.8 1982 0.8 1.6 1.4 -0.4 0.1 0.2 0.5 1.3 -1.5 -1.4 -2.9 -4.4 1983 -4.8 -5.0 -6.7 -5.4 -6.7 -3.1 -1.5 1.0 2.0 2.2 1.3 2.2 1984 1.4 -0.9 -1.3 -0.3 1.4 2.7 2.6 0.9 -0.2 1.9 0.7 3.2 1985 1.0 3.2 2.7 2.4 3.8 1.1 0.1 1.1 1.7 -1.1 0.8 0.2 1986 2.4 0.9 1.7 1.9 0.6 1.2 0.0 -1.0 0.3 -1.6 -0.3 -0.6 1987 0.2 -1.1 -3.0 -3.5 -3.8 0.2 -2.6 0.3 1.2 0.1 1.3 1.4 1988 1.7 1.0 1.7 0.6 3.9 2.2 3.5 0.4 2.8 2.7 1.6 2.4 1989 1.5 -0.4 1.2 3.1 1.9 -0.9 0.6 0.2 -1.4 1.5 0.3 -1.0 1990 1.8 0.1 1.6 0.8 -0.3 -0.8 -1.4 0.1 -0.4 -1.4 0.4 -1.2 1991 -0.3 1.2 -0.6 0.5 -1.6 -2.0 -0.8 0.3 -1.8 -1.3 -0.9 -1.6 1992 -4.4 -1.7 -2.2 -1.1 -1.0 -0.4 -0.4 0.0 -1.7 1.4 -2.2 -0.6 1993 -1.3 -0.5 -0.3 -1.7 -1.7 -1.6 -0.2 -2.1 -1.1 -0.6 -0.5 0.2 1994 -0.6 0.7 0.4 1.9 0.3 0.6 0.2 -0.5 -1.2 -3.1 -2.7 -1.1 1995 -1.0 -1.1 1.1 0.3 0.5 -1.7 -0.8 -1.0 -0.9 -1.1 1.4 -0.8 1996 1.0 3.0 1.0 1.1 2.2 -0.4 0.0 -1.0 0.7 -0.9 0.4 2.6 1997 -1.0 1.3 -0.2 -1.2 -0.5 -5.1 -1.6 -3.1 -5.1 -6.5 -6.8 -4.9 1998 -5.5 -8.1 -6.4 -7.3 -1.4 -2.2 -0.3 0.2 -1.3 0.7 0.3 0.7 1999 0.3 -1.8 -2.0 -1.4 -0.7 -1.9 -0.1 -1.1 -1.7 -0.2 1.3 1.2 2000 2.0 -0.4 -2.6 -0.7 -1.5 -1.2 -1.8 0.4 -2.2 0.5 -0.6 0.2 2001 -1.9 0.1 -2.5 0.0 -0.5 -0.3 -1.1 1.0 -0.1 -0.8 0.5 -0.3 2002 -1.0 -1.2 -0.1 0.4 -1.8 -1.0 -2.8 -0.6 -1.7 -0.9 -1.1 -1.9 2003 -0.8 -1.0 -1.5 0.2 0.2 -2.7 -1.9 -1.3 -1.7 -1.8 -1.6 -0.6 2004 -1.0 -0.6 0.3 0.1 -0.4 0.1 -2.8 -0.4 -1.1 -1.1 -1.3 -0.6 2005 0.1 0.8 -1.3 -0.1 -0.9 -2.4 -1.3 -2.0 -0.7 -1.4 0.3 -0.5 2006 -1.6 -1.1 0.7 -0.1 -1.9 -0.7 -3.3 -2.8 -0.2 -1.7 -3.0 -1.3 2007 -1.2 -1.0 0.1 -1.1 -1.0 -0.2 -1.8 0.2 2.2 -0.2 1.8 -0.1 2008 -0.2 -1.2 -2.1 -2.0 -2.2 -2.0 -2.1 -2.2 -0.9 -1.9 -0.2 -0.7 2009 -1.4 -0.2 0.0 0.4 -0.7 -2.8 -1.0 -1.9 0.3 -2.9 -1.8 -3.2 2010 -1.1 -3.1 -2.1 -1.5 -1.5 -1.3 -1.2 -1.0 -1.0 0.3 -1.2 0.5 2011 -2.3 -2.5 -0.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2012-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2013-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2014-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2015-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2016-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2017-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2018-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2019-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2020-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 850 MB TRADE WIND INDEX(135W-120W)5N 5S EAST PACIFIC STANDARDIZED DATA YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 0.2 -0.5 0.1 -0.8 -0.7 0.2 -1.4 -1.7 -1.1 -1.2 -0.7 -0.6 1980 -0.4 0.1 0.4 0.6 0.8 0.8 0.9 1.0 1.1 1.4 0.7 0.9 1981 1.2 1.4 0.4 1.0 1.1 0.4 1.0 -0.1 1.5 0.4 1.1 1.0 1982 0.4 0.9 0.8 -0.2 0.1 0.1 0.2 0.7 -0.8 -0.7 -1.6 -2.4 1983 -2.6 -2.7 -3.6 -2.9 -3.6 -1.7 -0.8 0.6 1.1 1.2 0.7 1.2 1984 0.7 -0.5 -0.7 -0.2 0.8 1.5 1.4 0.5 -0.1 1.1 0.4 1.7 1985 0.5 1.7 1.5 1.3 2.1 0.6 0.0 0.6 0.9 -0.6 0.4 0.1 1986 1.3 0.5 0.9 1.0 0.3 0.6 0.0 -0.5 0.1 -0.8 -0.2 -0.3 1987 0.1 -0.6 -1.6 -1.9 -2.0 0.1 -1.4 0.2 0.6 0.1 0.7 0.7 1988 0.9 0.5 0.9 0.3 2.1 1.2 1.9 0.2 1.5 1.5 0.8 1.3 1989 0.8 -0.2 0.7 1.7 1.0 -0.5 0.3 0.1 -0.8 0.8 0.1 -0.6 1990 1.0 0.1 0.9 0.4 -0.1 -0.4 -0.8 0.1 -0.2 -0.7 0.2 -0.7 1991 -0.2 0.7 -0.3 0.2 -0.9 -1.1 -0.5 0.2 -1.0 -0.7 -0.5 -0.9 1992 -2.4 -0.9 -1.2 -0.6 -0.5 -0.2 -0.2 0.0 -0.9 0.8 -1.2 -0.3 1993 -0.7 -0.3 -0.1 -0.9 -0.9 -0.9 -0.1 -1.1 -0.6 -0.3 -0.3 0.1 1994 -0.3 0.4 0.2 1.0 0.2 0.3 0.1 -0.3 -0.7 -1.7 -1.5 -0.6 1995 -0.6 -0.6 0.6 0.1 0.3 -0.9 -0.5 -0.5 -0.5 -0.6 0.7 -0.5 1996 0.5 1.6 0.6 0.6 1.2 -0.2 0.0 -0.5 0.4 -0.5 0.2 1.4 1997 -0.6 0.7 -0.1 -0.7 -0.3 -2.8 -0.9 -1.7 -2.8 -3.5 -3.7 -2.7 1998 -3.0 -4.4 -3.4 -4.0 -0.7 -1.2 -0.2 0.1 -0.7 0.4 0.1 0.4 1999 0.1 -1.0 -1.1 -0.8 -0.4 -1.0 -0.1 -0.6 -0.9 -0.1 0.7 0.6 2000 1.1 -0.2 -1.4 -0.4 -0.8 -0.7 -1.0 0.2 -1.2 0.3 -0.3 0.1 2001 -1.0 0.1 -1.3 0.0 -0.3 -0.2 -0.6 0.6 -0.1 -0.4 0.3 -0.2 2002 -0.6 -0.6 0.0 0.2 -1.0 -0.5 -1.5 -0.3 -0.9 -0.5 -0.6 -1.0 2003 -0.4 -0.5 -0.8 0.1 0.1 -1.5 -1.1 -0.7 -0.9 -0.9 -0.9 -0.3 2004 -0.6 -0.3 0.2 0.0 -0.2 0.1 -1.5 -0.2 -0.6 -0.6 -0.7 -0.3 2005 0.0 0.4 -0.7 -0.1 -0.5 -1.3 -0.7 -1.1 -0.4 -0.7 0.1 -0.3 2006 -0.9 -0.6 0.4 -0.1 -1.0 -0.4 -1.8 -1.5 -0.1 -0.9 -1.6 -0.7 2007 -0.7 -0.5 0.1 -0.6 -0.5 -0.1 -1.0 0.1 1.2 -0.1 1.0 -0.1 2008 -0.1 -0.6 -1.1 -1.1 -1.2 -1.1 -1.2 -1.2 -0.5 -1.0 -0.1 -0.4 2009 -0.8 -0.1 0.0 0.2 -0.4 -1.5 -0.6 -1.0 0.1 -1.5 -1.0 -1.8 2010 -0.6 -1.7 -1.1 -0.8 -0.8 -0.7 -0.7 -0.5 -0.6 0.2 -0.7 0.2 2011 -1.3 -1.3 -0.5-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2012-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2013-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2014-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2015-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2016-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2017-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2018-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2019-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2020-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9