850 MB TRADE WIND INDEX(135E-180W)5N 5S WEST PACIFIC ORIGINAL DATA YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 -1.6 1.2 2.6 2.1 3.4 4.5 2.6 3.1 3.3 -0.8 1.0 -2.5 1980 0.3 1.9 -2.1 -1.1 -0.0 0.5 1.2 2.0 1.4 1.2 -0.7 0.4 1981 1.1 -1.0 -0.1 -0.9 4.5 2.5 3.8 4.8 3.6 2.4 2.4 -1.6 1982 1.7 0.8 -0.7 0.8 1.1 0.4 -1.5 -2.5 -2.0 -2.4 -5.0 0.9 1983 0.1 1.9 1.0 2.4 2.5 2.6 3.8 4.8 4.2 2.6 0.4 1.3 1984 4.8 6.4 5.4 6.8 6.3 3.8 4.2 3.6 4.1 1.5 -0.1 -0.7 1985 -0.8 3.7 -1.0 3.3 3.7 3.0 3.5 4.9 4.0 2.2 -0.6 -0.6 1986 2.0 0.8 5.0 1.0 0.5 3.3 2.3 2.7 0.8 1.0 -2.7 -5.2 1987 0.7 -2.2 0.2 -1.1 -0.3 2.3 0.3 2.2 1.8 1.3 -0.3 -1.7 1988 0.5 1.0 4.7 2.6 4.6 3.8 4.6 6.4 6.8 3.0 3.9 1.1 1989 3.7 3.0 4.4 3.3 3.6 3.6 5.2 4.9 4.9 2.9 -2.3 -1.5 1990 -1.1 -2.8 -2.5 1.2 3.2 2.5 2.4 3.6 3.5 3.0 -3.4 -3.3 1991 0.8 1.6 -1.1 0.9 1.9 2.8 2.0 2.2 0.1 1.0 -4.2 -2.1 1992 -2.9 0.6 1.0 0.2 2.5 2.8 2.6 2.9 2.5 1.6 -1.7 -1.7 1993 0.3 -3.0 -1.1 -1.3 2.5 2.0 2.7 2.0 3.4 1.1 1.8 -0.6 1994 1.6 2.7 3.0 2.6 2.1 3.2 1.5 0.9 1.1 -0.0 -2.6 -4.4 1995 0.3 2.0 3.1 0.3 2.2 5.4 5.2 6.1 4.5 3.8 3.4 1.2 1996 3.0 3.5 4.0 5.2 3.6 5.6 4.6 5.9 3.9 4.1 1.8 -1.5 1997 0.2 3.2 -5.2 -2.0 -0.9 -0.1 1.7 -2.4 -1.8 -4.1 0.5 -0.8 1998 1.5 1.9 1.4 4.6 5.3 6.3 6.9 5.3 6.6 4.7 3.6 2.6 1999 7.3 3.9 8.1 7.0 6.1 4.8 4.8 5.8 5.2 6.1 2.8 4.2 2000 3.5 7.3 6.2 7.2 5.9 6.2 4.4 4.2 4.5 3.2 2.6 1.9 2001 6.4 5.8 5.2 5.2 3.6 3.0 3.6 3.3 4.0 1.2 0.9 -3.1 2002 2.1 -0.1 1.9 2.2 1.7 3.9 1.1 0.8 -1.2 -3.0 0.1 -0.8 2003 0.8 2.3 3.4 2.1 3.1 3.3 3.9 3.7 3.4 2.1 0.2 2.0 2004 1.4 2.6 1.7 1.0 4.5 1.1 2.9 1.7 2.9 -0.5 -0.4 0.1 2005 0.9 -1.8 2.4 1.7 3.9 5.3 4.1 3.3 3.0 3.5 2.0 3.9 2006 4.1 3.5 3.3 4.5 2.6 3.9 1.4 1.4 1.9 -0.9 -0.3 2.0 2007 1.5 2.9 2.9 4.4 3.6 6.4 4.9 4.9 4.7 3.7 1.9 6.1 2008 2.8 6.5 6.8 6.0 5.1 6.2 6.6 6.8 5.2 5.6 6.1 3.6 2009 4.7 7.1 2.9 4.3 3.8 3.2 2.8 3.0 1.5 -0.3 1.6 -0.6 2010 0.9 0.7 2.5 4.0 6.7 6.5 7.6 7.9 8.2 5.8 5.4 5.3 2011 4.4 4.3 6.1 6.2 4.8 5.8 5.3 5.4 6.7 4.0 3.1 5.7 2012 4.1 6.2 5.2 3.8 4.4 4.6 5.4 4.9 2.5 3.3 2.5 2.8 2013 1.5 4.7 3.2 6.2 6.4 4.9 5.0 4.8 4.0 1.6 3.8 3.9 2014 1.2 -0.1 0.9 2.2 4.0 4.2 3.8 3.8 3.4 2.0 2.6 2.4 2015 1.3 1.1 -2.1 1.3 0.4 2.3 -0.1 0.8 0.1 -0.7 0.6 -0.0 2016 0.9 2.4 2.6 3.1 5.0 3.7 4.1 3.8 5.0 3.6 2.6 1.8 2017 3.4 3.7 5.9 3.3 5.7 4.6 5.7 5.3 6.1 3.3 2.5 1.3 2018 5.1 -0.7 0.4 2.0 4.0 4.1 4.4 2.5 0.6 1.3 -0.0 0.6 2019 -0.6 -1.7 1.7 4.3 0.2 4.8 2.4 2.8 1.4 2.5 -0.6 -1.0 2020 -1.0 -0.3 3.2 3.7 5.3 4.8 6.0 4.8 5.8 4.3 4.7 4.5 2021 6.7 3.2 5.3 2.3 5.4 5.2 5.8 5.3 7.3 4.2 5.9 0.7 2022 2.0 5.8 5.8 5.3 5.7 6.3 8.0 6.5 6.2 5.6 3.7 4.4 2023 5.1 3.8 2.7 3.3 2.3 4.5 3.8 2.9 3.3 0.4 -0.5 0.5 2024 3.2 2.4 4.6 5.5 4.5 5.1 5.2 5.9 4.4 4.0-999.9-999.9 2025-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2026-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2027-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2028-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 850 MB TRADE WIND INDEX(135E-180W)5N 5S WEST PACIFIC ANOMALY YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 -3.4 -1.0 0.3 -0.6 0.1 0.8 -0.9 -0.4 0.1 -2.7 0.4 -2.7 1980 -1.5 -0.3 -4.4 -3.8 -3.3 -3.2 -2.3 -1.5 -1.8 -0.7 -1.3 0.2 1981 -0.7 -3.2 -2.4 -3.6 1.2 -1.2 0.3 1.3 0.4 0.5 1.8 -1.8 1982 -0.1 -1.4 -3.0 -1.9 -2.2 -3.3 -5.0 -6.0 -5.2 -4.3 -5.6 0.7 1983 -1.7 -0.3 -1.3 -0.3 -0.8 -1.1 0.3 1.3 1.0 0.7 -0.2 1.1 1984 3.0 4.2 3.1 4.2 3.0 0.1 0.7 0.1 0.9 -0.4 -0.7 -0.9 1985 -2.6 1.5 -3.3 0.6 0.4 -0.7 0.0 1.4 0.8 0.3 -1.2 -0.8 1986 0.2 -1.4 2.7 -1.7 -2.8 -0.4 -1.2 -0.8 -2.4 -0.9 -3.3 -5.4 1987 -1.1 -4.4 -2.1 -3.8 -3.6 -1.4 -3.2 -1.3 -1.4 -0.6 -0.9 -1.9 1988 -1.3 -1.2 2.4 -0.1 1.3 0.1 1.1 2.9 3.6 1.1 3.3 0.9 1989 1.9 0.8 2.1 0.6 0.3 -0.1 1.7 1.4 1.7 1.0 -2.9 -1.7 1990 -2.9 -5.0 -4.8 -1.5 -0.1 -1.2 -1.1 0.1 0.3 1.1 -4.0 -3.5 1991 -1.0 -0.6 -3.4 -1.8 -1.4 -0.9 -1.5 -1.3 -3.1 -0.9 -4.8 -2.3 1992 -4.7 -1.6 -1.3 -2.5 -0.8 -0.9 -0.9 -0.6 -0.7 -0.3 -2.3 -1.9 1993 -1.5 -5.2 -3.4 -4.0 -0.8 -1.7 -0.8 -1.5 0.2 -0.8 1.2 -0.8 1994 -0.2 0.5 0.7 -0.1 -1.2 -0.5 -2.0 -2.6 -2.1 -1.9 -3.2 -4.6 1995 -1.5 -0.2 0.8 -2.4 -1.1 1.7 1.7 2.6 1.3 1.9 2.8 1.0 1996 1.2 1.3 1.7 2.5 0.3 1.9 1.1 2.4 0.7 2.2 1.2 -1.7 1997 -1.6 1.0 -7.5 -4.7 -4.2 -3.8 -1.8 -5.9 -5.0 -6.0 -0.1 -1.0 1998 -0.3 -0.3 -0.9 1.9 2.0 2.6 3.4 1.8 3.4 2.8 3.0 2.4 1999 5.5 1.7 5.8 4.3 2.8 1.1 1.3 2.3 2.0 4.2 2.2 4.0 2000 1.7 5.1 3.9 4.5 2.6 2.5 0.9 0.7 1.3 1.3 2.0 1.7 2001 4.6 3.6 2.9 2.5 0.3 -0.7 0.1 -0.2 0.8 -0.7 0.3 -3.3 2002 0.3 -2.3 -0.4 -0.5 -1.6 0.2 -2.4 -2.7 -4.4 -4.9 -0.5 -1.0 2003 -1.0 0.1 1.1 -0.6 -0.2 -0.4 0.4 0.2 0.2 0.2 -0.4 1.8 2004 -0.4 0.4 -0.6 -1.7 1.2 -2.6 -0.6 -1.8 -0.3 -2.4 -1.0 -0.1 2005 -0.9 -4.0 0.1 -1.0 0.6 1.6 0.6 -0.2 -0.2 1.6 1.4 3.7 2006 2.3 1.3 1.0 1.8 -0.7 0.2 -2.1 -2.1 -1.3 -2.8 -0.9 1.8 2007 -0.3 0.7 0.6 1.8 0.3 2.7 1.4 1.4 1.5 1.8 1.3 5.9 2008 1.0 4.3 4.5 3.3 1.8 2.5 3.1 3.3 2.0 3.7 5.5 3.4 2009 2.9 4.9 0.6 1.7 0.5 -0.5 -0.7 -0.5 -1.7 -2.2 1.0 -0.8 2010 -0.9 -1.5 0.2 1.3 3.4 2.8 4.1 4.4 5.0 3.9 4.8 5.1 2011 2.6 2.1 3.8 3.5 1.5 2.1 1.8 1.9 3.5 2.1 2.5 5.5 2012 2.3 4.0 2.9 1.1 1.1 0.9 1.9 1.4 -0.7 1.4 1.9 2.6 2013 -0.3 2.5 0.9 3.5 3.1 1.2 1.5 1.3 0.8 -0.3 3.2 3.7 2014 -0.6 -2.3 -1.4 -0.5 0.7 0.5 0.3 0.3 0.2 0.1 2.0 2.2 2015 -0.5 -1.1 -4.4 -1.4 -2.9 -1.4 -3.6 -2.7 -3.1 -2.6 0.0 -0.2 2016 -0.9 0.2 0.3 0.4 1.7 0.0 0.6 0.3 1.8 1.7 2.0 1.6 2017 1.6 1.5 3.6 0.6 2.4 0.9 2.2 1.8 2.9 1.4 1.9 1.1 2018 3.3 -2.9 -1.9 -0.7 0.7 0.4 0.9 -1.0 -2.6 -0.6 -0.6 0.4 2019 -2.4 -3.9 -0.6 1.7 -3.1 1.1 -1.1 -0.7 -1.8 0.6 -1.2 -1.2 2020 -2.8 -2.5 0.9 1.0 2.0 1.1 2.5 1.3 2.6 2.4 4.1 4.3 2021 4.9 1.0 3.0 -0.4 2.1 1.5 2.3 1.8 4.1 2.3 5.3 0.5 2022 0.2 3.6 3.5 2.7 2.4 2.6 4.5 3.0 3.0 3.7 3.1 4.2 2023 3.3 1.6 0.4 0.6 -1.0 0.8 0.3 -0.6 0.1 -1.5 -1.1 0.3 2024 1.4 0.2 2.3 2.8 1.2 1.4 1.7 2.4 1.2 2.1-999.9-999.9 2025-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2026-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2027-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2028-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 850 MB TRADE WIND INDEX(135E-180W)5N 5S WEST PACIFIC STANDARDIZED DATA YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1979 -1.4 -0.4 0.1 -0.2 0.0 0.4 -0.4 -0.2 0.1 -1.1 0.2 -1.1 1980 -0.6 -0.1 -1.8 -1.6 -1.4 -1.3 -0.9 -0.6 -0.7 -0.3 -0.5 0.1 1981 -0.3 -1.3 -1.0 -1.5 0.5 -0.5 0.1 0.5 0.2 0.2 0.8 -0.8 1982 -0.0 -0.6 -1.3 -0.8 -0.9 -1.4 -2.1 -2.5 -2.2 -1.8 -2.3 0.3 1983 -0.7 -0.1 -0.5 -0.1 -0.3 -0.4 0.1 0.5 0.4 0.3 -0.1 0.5 1984 1.3 1.8 1.3 1.7 1.3 0.1 0.3 0.0 0.4 -0.2 -0.3 -0.4 1985 -1.1 0.6 -1.4 0.3 0.2 -0.3 0.0 0.6 0.3 0.1 -0.5 -0.3 1986 0.1 -0.6 1.1 -0.7 -1.2 -0.1 -0.5 -0.3 -1.0 -0.4 -1.4 -2.3 1987 -0.5 -1.8 -0.9 -1.6 -1.5 -0.6 -1.3 -0.5 -0.6 -0.2 -0.4 -0.8 1988 -0.5 -0.5 1.0 -0.0 0.5 0.1 0.5 1.2 1.5 0.5 1.4 0.4 1989 0.8 0.4 0.9 0.3 0.1 -0.0 0.7 0.6 0.7 0.4 -1.2 -0.7 1990 -1.2 -2.1 -2.0 -0.6 -0.0 -0.5 -0.4 0.0 0.1 0.5 -1.7 -1.5 1991 -0.4 -0.2 -1.4 -0.7 -0.6 -0.4 -0.6 -0.5 -1.3 -0.4 -2.0 -1.0 1992 -2.0 -0.7 -0.5 -1.0 -0.3 -0.4 -0.4 -0.3 -0.3 -0.1 -1.0 -0.8 1993 -0.6 -2.2 -1.4 -1.7 -0.3 -0.7 -0.3 -0.6 0.1 -0.3 0.5 -0.3 1994 -0.1 0.2 0.3 -0.0 -0.5 -0.2 -0.8 -1.1 -0.9 -0.8 -1.3 -1.9 1995 -0.6 -0.1 0.3 -1.0 -0.5 0.7 0.7 1.1 0.6 0.8 1.2 0.4 1996 0.5 0.6 0.7 1.1 0.1 0.8 0.5 1.0 0.3 0.9 0.5 -0.7 1997 -0.7 0.4 -3.1 -2.0 -1.8 -1.6 -0.7 -2.5 -2.1 -2.5 -0.0 -0.4 1998 -0.1 -0.1 -0.4 0.8 0.8 1.1 1.4 0.8 1.4 1.2 1.3 1.0 1999 2.3 0.7 2.4 1.8 1.2 0.5 0.6 1.0 0.8 1.8 0.9 1.7 2000 0.7 2.2 1.6 1.9 1.1 1.1 0.4 0.3 0.6 0.6 0.8 0.7 2001 1.9 1.5 1.2 1.1 0.1 -0.3 0.1 -0.1 0.3 -0.3 0.1 -1.4 2002 0.1 -0.9 -0.2 -0.2 -0.7 0.1 -1.0 -1.1 -1.8 -2.0 -0.2 -0.4 2003 -0.4 0.1 0.5 -0.2 -0.1 -0.1 0.2 0.1 0.1 0.1 -0.2 0.8 2004 -0.2 0.2 -0.2 -0.7 0.5 -1.1 -0.2 -0.8 -0.1 -1.0 -0.4 -0.0 2005 -0.4 -1.7 0.0 -0.4 0.2 0.7 0.3 -0.1 -0.1 0.7 0.6 1.6 2006 1.0 0.6 0.4 0.8 -0.3 0.1 -0.9 -0.9 -0.5 -1.2 -0.4 0.8 2007 -0.1 0.3 0.3 0.7 0.1 1.2 0.6 0.6 0.6 0.8 0.5 2.5 2008 0.4 1.8 1.9 1.4 0.7 1.1 1.3 1.4 0.8 1.6 2.3 1.4 2009 1.2 2.1 0.3 0.7 0.2 -0.2 -0.3 -0.2 -0.7 -0.9 0.4 -0.3 2010 -0.4 -0.6 0.1 0.6 1.4 1.2 1.7 1.8 2.1 1.6 2.0 2.1 2011 1.1 0.9 1.6 1.5 0.6 0.9 0.8 0.8 1.5 0.9 1.1 2.3 2012 1.0 1.7 1.2 0.5 0.5 0.4 0.8 0.6 -0.3 0.6 0.8 1.1 2013 -0.1 1.1 0.4 1.5 1.3 0.5 0.6 0.5 0.3 -0.1 1.3 1.6 2014 -0.3 -0.9 -0.6 -0.2 0.3 0.2 0.1 0.1 0.1 0.1 0.8 0.9 2015 -0.2 -0.4 -1.8 -0.6 -1.2 -0.6 -1.5 -1.1 -1.3 -1.1 0.0 -0.1 2016 -0.4 0.1 0.1 0.2 0.7 0.0 0.3 0.1 0.8 0.7 0.8 0.7 2017 0.7 0.6 1.5 0.3 1.0 0.4 0.9 0.8 1.2 0.6 0.8 0.5 2018 1.4 -1.2 -0.8 -0.3 0.3 0.2 0.4 -0.4 -1.1 -0.2 -0.2 0.2 2019 -1.0 -1.6 -0.2 0.7 -1.3 0.5 -0.4 -0.3 -0.7 0.3 -0.5 -0.5 2020 -1.2 -1.0 0.4 0.4 0.8 0.5 1.1 0.5 1.1 1.0 1.7 1.8 2021 2.1 0.4 1.3 -0.1 0.9 0.6 1.0 0.8 1.7 1.0 2.2 0.2 2022 0.1 1.5 1.5 1.1 1.0 1.1 1.9 1.3 1.3 1.6 1.3 1.8 2023 1.4 0.7 0.2 0.3 -0.4 0.4 0.1 -0.3 0.1 -0.6 -0.5 0.1 2024 0.6 0.1 1.0 1.2 0.5 0.6 0.7 1.0 0.5 0.9-999.9-999.9 2025-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2026-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2027-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9 2028-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9-999.9