Mcmurdo 00Z 500hPa wind_speed 1956 - - - - - - - 20.6 32.1 13.7 - - 1957 - - - 25.9 36.9 19.2 22.2 25.9 27.3 25.2 16.9 19.3 1958 - - 30.0 27.0 38.4 28.3 34.6 27.7 18.1 26.1 14.7 19.6 1959 21.2 21.0 - - 25.5 22.6 24.7 23.3 15.8 21.3 22.5 17.2 1960 19.4 19.4 - - - - - - - - - - 1961 16.8 20.5 20.4 18.0 18.2 23.2 17.6 22.2 19.2 23.3 13.1 - 1962 10.6 25.8 25.2 15.3 16.6 17.5 21.7 26.3 26.8 25.9 18.8 14.9 1963 18.6 19.6 24.9 20.8 25.2 14.9 27.9 17.5 23.3 13.7 11.3 22.5 1964 19.8 14.8 23.4 18.8 22.1 21.9 21.0 26.5 21.1 12.3 19.5 16.5 1965 14.5 26.5 31.5 22.6 24.9 23.0 22.4 17.8 19.3 21.8 17.6 22.1 1966 18.9 16.6 18.7 18.0 31.6 - 18.5 20.2 15.9 19.0 21.4 17.9 1967 17.4 16.4 25.3 28.3 27.4 16.4 16.2 27.2 22.8 19.4 22.7 15.1 1968 18.9 16.1 16.9 22.7 20.7 18.0 14.9 19.9 30.8 22.5 14.6 16.7 1969 16.7 14.7 16.3 17.3 20.2 25.0 18.0 16.8 17.6 15.5 18.7 20.0 1970 16.4 21.6 14.0 16.5 22.2 20.2 17.8 34.6 25.0 26.8 12.2 15.1 1971 16.9 11.0 - 18.0 27.3 27.7 18.5 23.2 15.4 21.1 13.9 17.0 1972 19.3 15.8 19.4 24.2 21.4 22.1 26.1 25.2 20.6 13.7 18.8 16.0 1973 17.4 14.8 19.7 20.1 24.1 23.1 18.2 16.9 21.4 - 18.3 13.7 1974 16.9 13.9 26.0 15.9 21.3 19.8 19.6 22.7 20.5 21.2 16.3 13.9 1975 17.5 12.4 20.6 19.5 19.2 17.2 23.0 24.8 23.5 19.3 13.8 10.5 1976 13.9 14.2 14.6 16.5 23.4 10.9 23.7 20.8 17.6 15.8 17.5 12.5 1977 13.6 15.5 17.4 21.0 20.4 19.8 14.2 25.9 15.9 21.4 13.3 21.4 1978 12.1 18.1 19.2 17.9 26.0 16.3 24.6 19.8 19.4 14.8 20.8 10.8 1979 12.0 7.9 11.9 17.0 13.7 16.0 17.1 19.6 16.6 9.5 15.3 15.5 1980 17.0 19.9 25.6 17.6 27.5 28.4 18.9 29.3 26.6 20.4 14.5 11.2 1981 17.2 22.8 17.4 34.4 27.6 35.3 22.2 36.2 28.8 - - - 1982 - - - 14.5 32.0 46.1 24.6 9.6 - 26.5 25.8 16.9 1983 - - - - 25.6 23.3 19.8 - - - - 18.5 1984 15.2 21.8 18.5 - 17.2 18.6 26.4 27.1 22.4 18.9 16.3 12.2 1985 16.2 15.4 28.6 22.9 26.1 18.6 26.6 30.2 21.5 28.4 15.5 17.2 1986 - 19.9 - - - - - - - 20.6 15.3 12.4 1987 18.6 16.0 23.5 20.1 14.6 - 17.9 19.6 14.5 19.8 11.6 11.4 1988 15.7 14.4 14.9 15.6 16.2 18.0 18.5 14.9 18.4 24.4 17.4 12.6 1989 11.1 14.1 16.7 21.9 15.6 16.8 17.8 15.8 20.6 16.5 19.3 13.4 1990 20.0 13.0 23.6 17.1 21.0 22.6 - 18.2 19.4 18.5 - 11.6 1991 15.2 14.5 9.8 21.4 22.6 22.0 10.2 23.6 17.6 14.2 16.5 17.0 1992 18.0 17.9 16.3 11.4 20.6 - 18.6 36.0 18.1 17.1 19.0 15.9 1993 21.0 20.3 23.3 20.1 29.2 25.4 40.5 26.4 22.6 29.6 21.5 21.2 1994 13.5 15.5 - - - 31.7 23.5 12.7 - 18.8 12.4 13.3 1995 15.4 17.8 - 23.9 19.5 20.5 19.2 19.6 - 21.6 20.5 11.6 1996 14.0 14.3 - 15.7 31.5 23.3 25.8 22.3 21.7 17.4 19.5 17.8 1997 11.6 19.2 20.4 - - - - - 30.2 23.2 20.4 15.8 1998 10.8 23.7 16.1 21.2 22.4 20.8 21.0 21.0 24.2 20.0 16.5 17.6 1999 18.8 14.3 18.0 18.0 18.2 21.2 23.7 16.8 23.5 15.3 19.8 16.1 2000 - 15.1 16.1 18.8 17.5 19.8 26.5 18.3 31.1 17.3 21.1 15.2 2001 22.4 14.9 16.4 21.7 26.8 19.6 18.1 17.4 16.4 18.1 16.0 15.9 2002 17.1 8.9 27.5 18.2 21.6 29.0 16.7 18.7 22.7 22.3 20.9 22.0 2003 18.3 14.6 14.2 13.8 18.4 19.2 18.4 22.1 25.2 17.5 16.2 18.4 2004 17.7 20.3 17.6 17.2 17.0 25.2 31.6 23.4 11.0 10.4 18.4 14.1 2005 16.1 7.5 9.0 9.4 9.6 9.1 8.0 11.9 10.2 12.0 8.3 12.1 2006 7.0 9.1 10.4 11.0 10.9 10.9 9.7 - - 7.9 7.8 6.6 2007 11.2 7.8 25.5 23.4 22.2 23.0 20.2 18.7 19.0 24.2 19.0 17.2 2008 12.8 15.1 19.7 17.8 13.5 21.7 21.4 28.5 23.1 15.1 21.6 17.0 2009 12.6 16.0 16.9 17.4 19.3 19.5 22.9 25.0 19.0 13.6 13.8 9.5 2010 19.5 16.3 19.8 16.7 20.4 14.7 18.9 21.9 20.7 16.8 18.0 15.8 2011 15.4 17.1 20.7 24.5 19.3 26.3 17.7 22.9 24.8 18.4 22.0 16.9 2012 15.4 16.8 19.4 18.7 22.8 22.1 18.8 29.3 12.6 14.8 13.3 12.9 2013 20.1 15.2 21.3 19.2 19.1 23.8 15.8 24.2 21.7 14.4 17.2 17.1 2014 21.9 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - 25.2 16.9 14.7 21.0 23.6 14.8 20.0 26.6 16.5 14.5 2018 11.4 13.1 18.5 26.4 17.5 23.7 26.0 26.8 17.6 19.7 14.7 24.5 2019 14.1 17.0 18.6 15.4 21.7 22.8 27.8 21.3 20.8 13.4 28.0 17.4 2020 16.0 17.1 22.5 22.8 19.8 23.4 21.0 23.9 19.9 12.8 17.7 15.6 2021 18.2 19.0 19.7 19.1 15.3 19.5 23.9 26.0 23.2 20.6 15.3 15.3 2022 9.8 14.2 30.0 18.9 21.9 26.8 22.6 22.5 18.3 22.7 18.3 13.6 2023 12.7 14.0 16.5 22.3 18.0 25.3 28.0 25.2 14.1 15.4 13.2 15.6 2024 13.2 21.7 14.9 18.5 - - - - - - - -