Mcmurdo 12Z 500hPa wind_speed 1956 - - - - - - - 24.2 28.7 18.3 - - 1957 - - - 27.0 35.0 19.9 24.1 24.3 27.7 26.5 17.8 19.0 1958 - - 34.7 27.5 36.7 26.7 32.4 34.6 27.2 24.7 14.1 17.9 1959 19.6 19.8 17.7 - 27.5 22.5 26.6 23.5 17.1 21.9 22.3 16.8 1960 17.1 18.0 - - - - - - - - - - 1961 18.1 20.6 22.5 21.3 15.0 22.5 20.0 19.9 19.8 17.9 13.3 - 1962 9.9 25.1 26.8 14.5 17.7 19.8 22.2 24.4 26.3 23.4 20.3 13.3 1963 18.2 16.5 - - - - - - - 12.7 12.0 23.1 1964 21.9 14.3 - - - - - - - 12.2 18.3 15.0 1965 12.7 25.4 - - - - - - - 21.8 19.9 19.2 1966 15.9 17.0 - - - - - - - 22.7 20.5 17.7 1967 16.2 17.7 - - - - - - - 20.4 21.0 15.7 1968 17.1 17.8 - - - - - - - 21.3 14.5 17.9 1969 16.4 12.4 - - - - - - - 14.9 16.7 19.8 1970 15.0 19.8 - - - - - - - 29.7 12.6 13.4 1971 17.4 10.8 - - - - - - - 21.6 14.1 17.1 1972 17.9 15.1 - - - - - - - 16.5 20.9 13.2 1973 18.3 13.6 - - - - - - - - 20.4 14.3 1974 16.3 13.2 - - - - - - - 21.4 14.9 13.5 1975 17.5 11.3 - - - - - - - 19.2 13.1 9.1 1976 11.2 8.2 - - - - - - - 16.9 17.2 11.5 1977 13.6 13.2 - - - - - - - 22.8 12.8 20.1 1978 13.9 18.7 - - - - - - - 15.4 16.9 10.2 1979 11.6 10.7 - - 13.8 13.6 - 25.2 - - 16.0 17.9 1980 17.3 - - - - - - - - 21.7 17.8 11.2 1981 15.9 21.9 - - - - - - - - - - 1982 - - - - - - - - - 34.5 - 15.9 1983 - - - - - - - - - - 12.5 18.1 1984 15.8 17.5 - - - - - - - 19.3 17.1 13.1 1985 15.4 9.8 - - - - - - - 24.0 14.6 16.5 1986 - 16.2 - - - - - - - 21.9 15.6 15.0 1987 15.8 20.3 - - - - - - - 20.6 12.6 11.0 1988 14.3 12.0 - - - - - - - 19.9 15.5 11.0 1989 11.0 10.9 - - - - - - - 17.7 16.8 13.0 1990 17.7 12.7 - - - - - - - 18.3 - 10.0 1991 12.7 17.5 - - - - - - - 15.3 20.3 18.5 1992 - 20.4 - - - - - - - 14.9 20.1 11.6 1993 21.6 15.5 - - - - - - - 27.7 24.8 33.6 1994 19.3 14.7 18.7 16.5 - - - - - - 10.4 14.8 1995 10.9 18.8 - - - - - - - 27.6 25.8 11.6 1996 12.8 13.0 - - - - - - 17.4 17.0 17.4 17.5 1997 11.2 18.6 - - - - - - - 20.2 24.8 15.0 1998 10.8 22.8 - - - - - 18.5 - 22.0 15.3 16.1 1999 19.1 12.5 - - - - - - - 19.1 20.2 14.7 2000 14.3 17.0 - - - - - - - 16.5 23.0 15.5 2001 21.3 14.9 - - - - - 20.3 - 15.9 15.6 17.6 2002 17.5 10.2 - - - - - 15.5 - 25.3 20.3 20.2 2003 19.2 14.8 - - - - - - 21.5 14.8 15.0 16.5 2004 16.9 20.2 - - - - - 25.9 - 9.9 17.5 15.8 2005 14.3 6.9 - - - - - - - 11.0 12.1 10.7 2006 7.2 8.3 - - - - - - - 8.2 8.1 5.4 2007 10.9 6.6 - - - - - - - 25.0 18.3 16.4 2008 11.9 18.5 - - - - - - 19.4 13.6 20.2 17.3 2009 14.4 14.3 - - - - - - - 14.9 11.2 9.6 2010 19.5 12.7 - - - - - 23.2 19.4 16.1 17.2 14.4 2011 14.3 16.8 - - - - - 22.7 - 22.8 21.2 16.4 2012 16.2 18.4 - - - - - 28.0 - 14.2 11.5 13.4 2013 19.6 14.2 - - - - - - - 16.0 19.7 16.8 2014 23.2 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - 21.9 15.0 16.2 2018 12.0 10.7 - - - - - - - 17.9 15.6 22.1 2019 14.4 11.0 - - - - - 18.7 15.1 13.7 23.7 19.1 2020 15.7 15.1 - - - - - - - 15.0 15.9 15.0 2021 - 15.8 18.3 - - - - 20.8 - 19.4 17.5 17.2 2022 11.7 13.6 - - - - 24.1 19.8 - 21.2 19.8 14.2 2023 14.2 12.1 - - - - - 23.1 18.2 15.7 15.6 15.5 2024 14.0 19.7 15.2 20.7 - - - - - - - -