Halley 12Z 200hPa wind_speed 1957 - - - 23.3 23.6 - 29.8 27.5 36.6 17.0 18.8 9.3 1958 12.4 15.4 14.4 17.9 13.1 32.5 31.6 23.1 32.4 27.9 16.3 13.8 1959 10.0 8.6 - 20.5 27.2 27.3 21.3 28.7 28.2 29.0 13.6 17.8 1960 17.0 10.0 - - - - - - 40.6 21.8 17.8 15.0 1961 19.0 9.8 20.3 28.1 28.1 16.1 26.4 33.9 28.9 25.0 24.3 15.9 1962 26.1 12.5 13.9 21.9 38.5 25.2 30.1 40.9 31.7 39.5 17.8 11.8 1963 12.0 16.0 14.2 19.9 25.9 29.5 27.0 23.5 25.4 21.7 22.9 13.6 1964 16.3 12.0 23.6 28.8 33.0 23.8 43.9 21.2 25.1 22.8 20.9 12.2 1965 14.2 19.1 23.0 23.5 25.9 23.1 30.1 29.7 27.1 31.8 21.7 13.5 1966 17.3 14.0 16.8 20.4 24.8 29.1 28.0 34.5 32.0 24.3 20.8 12.1 1967 12.8 10.5 19.2 26.4 24.4 25.5 25.3 32.9 31.3 20.1 16.1 16.1 1968 10.4 11.2 16.0 28.5 16.1 19.4 30.3 32.1 36.3 30.9 18.8 13.7 1969 9.1 13.6 16.2 24.2 21.7 26.0 39.8 40.0 33.4 28.3 15.4 20.5 1970 8.3 15.1 21.0 25.0 35.1 23.8 34.1 35.5 37.0 35.6 31.3 17.6 1971 - - 19.0 23.7 23.6 38.8 34.1 35.2 35.4 28.0 25.2 14.1 1972 9.1 10.6 16.5 17.8 32.4 20.1 33.5 29.8 27.8 38.1 19.2 12.0 1973 9.5 16.7 18.8 17.5 22.4 25.3 41.4 33.5 29.1 30.7 21.6 19.7 1974 12.1 21.1 20.9 19.5 20.5 33.0 22.7 31.5 21.5 35.2 17.3 9.8 1975 12.9 15.4 12.2 21.9 17.6 27.9 22.1 - - - - 11.8 1976 9.7 22.2 27.6 - - - - - - - 25.2 9.7 1977 11.9 11.0 19.3 25.5 26.0 - - 19.6 23.1 39.2 25.4 11.2 1978 16.9 14.9 18.3 - 33.2 31.0 25.1 36.2 37.8 26.1 22.5 10.0 1979 12.6 16.4 27.5 - - - 33.2 33.4 32.5 21.5 16.3 11.7 1980 10.5 17.2 15.2 13.5 26.6 20.8 20.3 - 22.4 36.4 17.2 12.7 1981 - - 27.1 17.8 25.8 30.9 25.5 - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - 11.8 - 17.7 21.9 27.6 33.8 32.4 26.5 - 17.8 17.5 1985 16.1 19.7 22.3 24.3 26.2 25.0 32.3 40.3 34.3 39.2 26.2 16.8 1986 10.8 10.9 - 21.2 19.3 27.2 31.3 26.1 35.2 28.1 28.0 23.1 1987 14.3 - 17.4 - - 23.1 16.1 26.9 - - - - 1988 - - 14.3 25.0 26.4 21.7 27.4 41.7 - - - - 1989 - - - 18.0 27.3 30.9 33.7 40.4 - - - - 1990 - - - - - - 19.6 - - - - - 1991 15.2 18.2 - - 32.7 25.5 18.0 - - - 15.5 17.7 1992 - 12.1 13.2 26.8 17.4 20.8 24.7 31.9 37.7 29.0 27.8 25.7 1993 15.1 18.4 18.9 20.0 28.3 20.6 23.1 31.7 19.7 23.6 25.7 13.4 1994 14.9 15.2 20.0 19.2 24.9 25.9 20.9 25.0 29.4 11.8 28.8 27.6 1995 18.5 13.5 15.6 26.1 29.1 21.4 17.0 16.6 30.7 30.4 17.9 11.7 1996 13.3 20.3 23.9 23.3 28.5 27.8 23.4 26.9 21.1 23.0 26.4 17.3 1997 13.2 17.3 22.4 22.9 24.8 32.0 22.1 24.0 22.4 23.5 16.0 16.7 1998 19.4 19.8 25.0 30.7 29.3 28.4 31.2 30.5 34.0 29.4 26.5 19.9 1999 22.6 16.9 21.5 24.8 30.9 20.9 23.2 25.9 22.7 30.2 23.9 23.6 2000 14.6 21.4 41.6 22.2 27.6 30.0 41.4 17.2 29.2 32.2 22.0 13.6 2001 11.9 22.4 18.1 18.1 34.9 17.9 26.3 30.3 41.9 26.1 23.4 20.9 2002 20.2 20.9 16.0 22.6 18.7 15.1 30.4 40.0 45.0 23.2 16.5 13.5 2003 18.4 14.9 22.3 26.3 27.7 24.7 30.8 38.8 35.4 25.6 17.0 15.6 2004 9.2 10.6 21.7 28.2 35.8 35.4 37.1 30.6 33.0 27.3 24.1 13.6 2005 17.4 15.7 16.4 21.7 30.0 20.9 33.0 35.2 41.2 41.0 26.5 15.8 2006 16.6 22.4 22.5 23.7 27.4 40.8 36.1 18.3 24.3 33.7 24.9 21.5 2007 18.0 16.2 13.6 22.0 22.5 21.3 24.7 24.8 31.7 27.6 18.5 18.8 2008 17.2 14.9 20.7 20.9 18.3 27.5 34.7 39.1 44.3 29.3 24.3 19.9 2009 12.7 15.4 22.0 28.3 19.9 15.3 27.8 37.6 37.1 19.4 24.4 10.5 2010 13.0 17.0 21.8 20.7 27.5 35.0 41.1 36.6 42.6 31.4 29.6 19.3 2011 12.3 14.2 28.2 18.9 29.9 31.7 28.6 30.3 42.8 23.5 24.2 21.9 2012 11.5 12.8 25.5 29.1 30.1 21.9 39.6 36.7 26.1 22.4 15.5 10.3 2013 10.8 17.5 26.3 33.4 32.1 41.2 25.4 27.8 32.7 25.4 12.3 10.8 2014 11.7 15.6 17.8 34.3 29.4 28.3 34.6 - - 20.4 17.7 15.2 2015 11.1 15.2 20.9 26.5 31.7 24.8 33.5 35.9 27.3 22.9 17.7 19.1 2016 15.5 16.9 22.5 24.9 26.0 29.8 32.4 24.4 28.3 33.8 17.9 10.2 2017 9.1 13.2 - - - - - - - - - 14.9 2018 8.7 16.0 - - - - - - - - - 15.8 2019 15.4 12.2 - - - - - - - - - 10.2 2020 10.8 - - - - - - - - - - - 2021 - - - - - - - - - - - 20.5 2022 21.3 - - - - - - - - - - 18.4 2023 15.4 - - - - - - - - - - 13.4 2024 17.8 - - - - - - - - - - -