Mawson 12Z 850hPa wind_speed 1954 - - - 11.9 9.7 - - 8.6 10.7 10.2 15.8 15.3 1955 8.6 10.4 10.1 11.1 - 9.0 - 15.1 11.6 13.9 18.4 13.5 1956 15.5 12.5 7.8 12.8 12.8 8.3 16.9 10.4 10.7 10.6 14.6 19.2 1957 17.4 11.2 12.7 10.8 - - 11.2 16.0 11.2 13.4 12.7 17.3 1958 13.6 10.2 10.0 11.7 15.5 10.8 12.0 15.8 12.3 15.9 13.4 16.3 1959 9.4 11.7 9.9 23.8 10.9 - - 13.7 8.2 14.1 10.4 12.1 1960 14.2 12.4 12.3 10.7 12.3 10.6 11.3 16.8 12.5 10.5 12.7 18.6 1961 13.2 20.4 8.9 9.1 14.3 12.5 12.7 14.0 16.4 11.5 14.1 11.3 1962 9.4 12.3 10.0 9.8 12.8 17.7 8.6 11.3 10.4 9.8 14.0 14.3 1963 16.5 11.1 8.5 9.8 15.1 10.8 12.5 15.1 15.8 10.2 10.1 18.1 1964 16.5 12.9 10.2 11.1 11.9 17.1 14.4 15.3 11.7 8.9 - 19.4 1965 14.3 14.9 13.3 13.9 15.7 11.4 12.4 13.8 12.2 11.7 10.8 23.4 1966 14.3 12.1 19.2 11.0 11.0 8.4 12.8 15.6 23.1 11.1 11.4 16.8 1967 18.0 10.0 14.3 12.0 16.9 12.3 15.7 15.9 15.3 16.3 23.2 20.5 1968 16.4 16.5 11.4 15.2 14.3 15.8 16.5 16.0 17.4 17.1 21.8 19.7 1969 22.0 14.3 14.8 13.2 20.0 21.5 17.2 19.8 12.5 17.8 20.2 26.7 1970 20.2 10.3 14.1 16.2 16.3 15.2 20.1 16.0 21.4 17.9 20.3 26.3 1971 24.0 16.9 12.2 18.0 15.2 14.5 17.8 20.5 20.6 15.6 16.9 29.6 1972 19.6 13.5 12.5 15.8 13.8 15.3 18.8 19.7 17.2 18.0 18.5 16.1 1973 18.8 13.4 14.8 13.3 18.6 14.5 12.3 12.6 18.9 25.5 21.4 17.0 1974 17.0 15.2 10.9 15.9 14.2 19.9 16.7 18.7 13.5 18.1 24.1 24.8 1975 25.1 12.3 12.5 15.7 17.8 20.4 15.5 12.5 17.6 16.3 21.4 19.0 1976 25.2 13.9 10.5 17.2 17.5 15.9 18.9 15.6 15.2 20.1 23.2 24.4 1977 24.5 10.3 10.4 13.4 17.1 17.1 27.2 19.1 14.6 13.8 15.8 22.8 1978 14.0 16.0 13.5 20.8 20.3 23.2 20.9 14.4 15.2 13.5 29.7 15.1 1979 20.9 15.1 9.3 13.6 16.0 14.1 10.3 16.7 19.8 15.9 22.6 25.0 1980 16.4 11.3 13.7 16.9 12.8 14.4 19.8 16.2 20.0 15.7 24.0 16.3 1981 19.8 15.8 18.6 13.2 17.4 17.6 14.9 20.5 14.4 10.6 16.4 18.4 1982 15.6 15.7 10.0 12.0 10.2 10.9 18.7 16.0 15.5 15.0 21.4 19.8 1983 24.4 11.6 10.4 19.5 15.6 12.9 19.7 23.5 18.0 18.7 10.0 20.3 1984 26.3 16.6 10.2 11.1 16.8 18.7 15.4 17.4 17.0 11.6 24.3 31.9 1985 24.1 14.0 13.5 13.5 16.7 23.1 11.5 13.5 14.0 21.5 15.7 23.0 1986 22.8 25.3 18.4 15.8 16.1 20.4 15.0 14.9 16.4 18.8 19.1 20.9 1987 20.7 11.6 - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 - - - - - - - - - - - - 1990 - - - - - - - - - - - - 1991 - - - - - 16.1 20.9 18.7 19.3 11.8 22.9 20.4 1992 13.2 19.8 10.5 11.9 17.0 19.9 12.6 14.6 17.2 19.5 17.5 21.8 1993 23.5 15.3 11.2 11.4 14.6 14.0 13.9 14.9 14.6 14.7 14.9 18.6 1994 22.0 13.4 9.0 13.0 14.1 25.1 18.6 14.3 16.3 15.1 19.0 15.5 1995 12.4 16.5 14.2 18.1 12.4 14.4 29.5 10.6 18.3 - - 17.6 1996 22.0 14.7 13.1 11.8 11.8 21.7 11.1 20.2 16.6 16.0 19.8 23.5 1997 17.0 17.5 13.0 10.4 14.0 17.5 17.0 18.8 11.9 17.0 19.9 25.7 1998 17.2 15.2 13.0 11.6 15.0 18.2 17.3 18.9 12.8 16.8 23.0 17.0 1999 18.2 11.8 16.3 14.5 17.4 23.3 16.8 16.0 18.0 15.0 14.6 19.5 2000 19.1 12.7 13.4 15.9 13.0 19.3 13.4 20.5 17.0 12.6 20.2 21.7 2001 20.4 19.1 14.6 9.9 15.6 13.6 16.4 20.5 13.1 14.6 22.4 20.6 2002 14.4 16.5 15.0 16.0 20.0 16.3 14.6 13.6 23.8 15.9 14.1 18.1 2003 19.7 16.5 12.7 12.3 15.2 18.3 14.6 17.8 18.0 14.0 16.2 27.4 2004 19.6 15.2 12.4 16.0 13.2 14.0 16.8 15.5 16.5 17.9 25.9 - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - 20.3 14.1 11.8 22.2 12.5 14.4 14.3 17.5 20.2 2009 13.8 14.3 17.2 14.4 18.0 20.5 21.9 12.7 16.2 17.1 16.6 18.4 2010 23.8 13.9 12.9 11.6 17.9 18.6 18.7 19.3 19.7 14.9 17.3 23.1 2011 22.3 9.1 16.2 13.1 19.3 19.4 20.0 16.5 17.5 10.8 27.1 13.1 2012 20.6 15.7 10.4 13.3 12.6 25.9 16.4 15.9 17.4 22.2 25.2 18.6 2013 29.3 14.2 12.3 17.0 12.4 21.1 18.1 20.5 22.0 20.8 23.2 18.0 2014 16.8 18.4 13.3 14.3 19.0 13.1 15.7 17.6 20.0 15.1 13.1 26.4 2015 16.1 10.8 15.3 16.5 18.7 11.2 14.4 15.2 17.3 14.8 18.9 21.7 2016 16.9 9.4 11.9 13.1 13.3 15.3 12.4 19.2 9.0 15.8 22.8 33.0 2017 16.7 15.3 14.3 13.0 20.1 11.9 15.1 12.8 14.0 16.7 16.4 23.1 2018 20.0 15.0 14.1 17.0 20.6 18.1 19.8 28.6 16.4 14.1 14.4 20.8 2019 19.6 23.4 13.0 12.1 13.3 17.0 11.0 19.8 16.4 19.6 25.6 17.7 2020 21.5 14.5 12.8 12.8 13.5 15.0 15.6 20.6 16.6 12.8 21.0 18.1 2021 19.7 14.4 13.7 13.6 16.0 13.5 16.8 17.8 14.7 17.5 16.3 21.6 2022 20.7 13.4 9.7 12.5 10.6 13.5 13.9 17.3 14.9 18.1 11.9 16.5 2023 17.7 15.9 12.3 17.2 15.2 14.1 16.9 14.9 15.6 15.5 16.1 17.1 2024 14.2 12.9 13.5 10.9 19.0 13.9 15.7 21.7 15.0 20.5 11.9 16.3 2025 23.7 12.2 9.3 17.5 16.3 16.1 13.4 14.9 26.6 19.8 22.0 16.0 2026 20.0 16.1 15.2 16.2 11.9 9.3 15.2 17.7 13.5 - - -