Syowa 12Z 500hPa wind_speed 1959 - - - - - - - - - - - - 1960 - - 21.2 - 26.5 - 17.7 - - - 15.9 16.8 1961 20.2 12.9 14.3 20.0 23.2 22.8 18.4 23.0 22.1 20.5 18.5 13.2 1962 - - - - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - 17.9 14.8 23.8 23.2 22.6 23.1 23.8 27.1 15.6 19.0 18.0 1967 15.3 12.4 22.6 17.2 21.0 17.8 19.0 23.9 19.3 19.5 18.3 14.7 1968 13.8 18.8 - - - - - - - - - - 1969 - - - - - - - - - - - - 1970 - - - - - - - - - - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 - - 18.0 18.0 25.5 15.7 23.1 22.5 20.6 18.1 14.0 18.6 1975 12.5 19.4 22.6 23.5 23.1 21.2 24.3 19.9 17.8 17.3 14.8 14.5 1976 15.4 12.2 16.2 21.0 19.9 25.2 17.4 18.0 24.4 15.7 19.7 22.7 1977 17.3 17.7 21.0 22.6 18.8 24.9 20.1 20.9 23.3 27.9 15.3 11.7 1978 11.0 19.4 17.5 17.8 20.9 17.4 16.6 20.3 26.2 23.3 14.8 15.4 1979 12.1 16.3 21.3 22.7 21.5 24.1 20.6 20.6 24.1 26.4 24.1 12.4 1980 18.0 22.2 21.1 19.0 23.1 17.0 17.5 19.1 17.8 17.0 13.7 15.6 1981 16.7 22.3 11.9 17.2 22.5 19.8 25.4 17.3 24.8 24.5 14.3 22.7 1982 13.7 17.0 17.6 21.0 24.4 23.0 22.4 23.6 22.6 19.7 19.0 18.1 1983 13.8 16.0 19.0 18.8 21.6 22.3 19.7 20.6 23.0 19.0 15.8 11.3 1984 13.6 17.8 27.4 24.6 25.7 19.3 21.6 22.0 18.2 23.0 17.2 16.2 1985 18.9 19.6 23.4 20.0 19.6 18.8 30.8 19.8 20.0 17.7 19.3 18.3 1986 18.1 18.0 17.2 17.3 23.7 26.8 22.4 27.4 23.6 23.8 19.9 14.6 1987 14.1 14.4 15.9 23.3 21.6 20.0 13.7 18.8 15.9 25.1 24.7 13.0 1988 15.6 18.2 21.0 20.5 23.4 19.8 16.8 21.1 17.2 14.1 13.6 16.4 1989 17.3 16.5 23.2 19.8 18.0 17.6 17.2 14.8 18.8 18.4 18.6 16.0 1990 16.6 14.9 17.8 21.0 22.4 14.4 24.2 19.5 19.1 14.6 15.8 17.2 1991 12.7 17.8 14.8 13.7 24.1 18.5 21.3 21.5 19.9 20.1 15.2 16.6 1992 11.6 15.5 20.7 23.6 27.4 24.9 17.4 20.1 23.2 20.6 15.7 14.4 1993 14.7 16.8 17.6 20.5 28.2 22.0 35.8 24.1 21.4 22.4 14.3 17.0 1994 14.1 14.7 19.0 23.0 18.1 20.0 21.6 25.7 14.5 17.2 14.3 13.1 1995 13.6 18.9 21.7 17.9 19.7 17.5 20.2 29.8 15.7 18.5 14.3 19.0 1996 12.3 17.2 16.5 20.3 25.4 21.8 20.5 20.6 19.9 17.2 12.2 14.9 1997 12.1 14.8 10.9 18.2 19.0 26.3 24.4 17.9 23.7 18.3 31.8 20.6 1998 15.1 17.3 16.6 29.4 25.3 21.2 15.9 17.4 30.0 25.1 16.9 14.2 1999 18.7 15.2 16.4 16.9 17.5 19.9 18.8 24.6 26.1 17.2 17.1 14.8 2000 11.1 21.8 18.2 15.6 20.5 22.5 21.4 21.5 14.1 16.7 23.3 15.2 2001 13.8 13.1 16.5 24.0 16.8 26.1 23.7 20.2 17.3 20.5 17.5 18.8 2002 10.8 17.8 15.9 23.8 24.7 16.8 21.0 18.4 19.4 17.9 15.9 17.7 2003 9.3 14.6 14.7 24.8 27.5 15.2 25.7 17.9 17.5 17.9 22.2 13.3 2004 17.1 20.2 19.0 23.7 18.7 24.4 17.0 19.8 19.6 20.6 17.1 16.0 2005 11.6 20.8 18.4 20.4 18.8 19.6 23.4 26.8 21.3 22.5 14.4 14.0 2006 14.0 15.0 15.2 16.8 21.7 23.1 20.9 28.2 21.1 24.6 17.4 13.7 2007 15.2 17.4 23.8 18.5 16.3 20.0 17.6 23.4 15.4 17.0 22.2 13.9 2008 14.9 15.9 21.3 29.3 16.9 25.5 20.4 24.0 24.3 18.4 17.1 18.9 2009 20.1 14.4 20.0 20.4 24.7 31.0 29.0 19.1 19.3 21.5 19.1 13.9 2010 19.6 17.5 16.3 18.6 18.4 22.3 22.6 25.0 19.3 20.8 19.2 17.3 2011 23.6 18.5 16.2 23.1 21.4 25.6 22.5 27.5 26.9 24.0 17.0 18.8 2012 16.7 20.6 17.7 19.7 28.6 25.0 17.6 29.4 26.1 20.4 16.9 16.4 2013 17.3 17.3 20.5 19.2 28.9 27.6 25.9 21.8 20.7 15.0 24.6 15.4 2014 15.7 18.4 16.6 17.1 26.6 18.0 16.6 27.0 20.0 17.6 11.6 15.2 2015 14.7 14.1 16.6 18.4 17.4 19.4 29.9 22.9 24.8 22.1 18.5 14.1 2016 17.1 25.7 22.2 24.9 21.7 20.6 20.7 26.3 16.1 26.8 21.5 16.1 2017 20.6 21.2 21.0 20.4 18.6 17.2 21.6 13.3 17.9 19.0 15.4 23.0 2018 18.4 13.9 23.7 18.9 15.3 19.9 23.9 24.7 23.9 23.5 15.9 19.9 2019 17.1 28.5 17.7 17.3 22.2 20.4 16.5 27.4 29.2 21.5 14.9 18.9 2020 14.2 14.1 19.8 29.2 19.0 19.4 22.3 - 23.8 19.3 - - 2021 - 8.2 30.0 26.6 25.9 17.9 21.1 17.7 22.3 17.6 20.6 17.5 2022 26.0 17.1 16.9 18.7 23.4 16.2 20.4 17.6 25.5 23.6 17.8 10.6 2023 19.7 14.8 25.8 23.9 21.8 19.7 31.6 24.3 - 12.2 17.7 20.1 2024 16.9 12.8 16.8 26.6 - - - - - - - -