Marsh 12Z wind_speed 1970 9.6 12.4 10.9 13.1 10.8 13.4 13.1 10.2 11.2 11.1 10.8 13.3 1971 9.9 11.4 11.5 13.1 15.5 12.6 12.8 17.5 14.8 16.2 12.0 14.9 1972 14.1 15.4 15.2 15.2 14.5 15.8 19.9 14.6 15.0 13.4 15.2 15.6 1973 11.5 11.3 13.4 15.4 12.7 11.6 12.4 15.3 14.9 14.9 11.2 9.3 1974 - - - - - - - - - - - - 1975 11.8 11.6 14.7 16.8 11.8 10.5 10.0 15.4 11.7 13.9 12.5 12.9 1976 10.6 10.9 10.5 14.3 15.1 13.0 12.4 15.4 15.4 14.3 10.7 13.5 1977 11.4 10.0 10.7 10.6 14.2 11.7 8.3 14.2 16.1 15.3 10.1 11.0 1978 8.5 9.6 9.8 8.6 8.7 13.0 6.1 12.2 10.8 13.4 8.5 11.4 1979 11.5 10.9 13.0 15.2 8.6 14.9 13.5 11.7 12.1 12.8 14.0 11.2 1980 10.7 13.2 11.4 14.9 9.8 16.1 8.0 10.8 11.4 10.4 11.6 7.2 1981 8.2 8.5 8.9 10.3 12.6 11.6 12.0 14.1 12.1 9.8 11.0 10.0 1982 8.3 9.0 13.3 14.3 12.4 11.9 12.3 11.1 11.3 11.9 9.8 11.9 1983 12.8 11.4 10.2 8.4 10.7 10.2 11.9 10.2 11.3 11.2 11.3 8.9 1984 8.2 7.6 6.1 7.8 10.1 7.0 8.8 9.5 12.3 11.8 10.2 10.8 1985 12.9 11.1 11.5 13.7 15.5 12.4 17.4 14.0 17.1 17.2 10.6 12.2 1986 12.8 10.0 13.4 11.3 17.0 15.8 12.3 15.7 13.5 13.2 12.7 12.5 1987 10.9 10.2 11.8 11.2 15.3 13.5 10.7 11.7 11.8 15.2 13.3 9.9 1988 9.8 11.7 12.0 9.5 11.3 15.2 9.7 10.0 11.9 14.7 11.1 11.1 1989 12.5 10.9 13.0 15.3 13.3 15.7 14.1 14.6 18.3 13.7 8.3 9.8 1990 10.4 9.1 10.7 13.9 9.0 10.1 10.5 13.4 10.4 11.3 11.5 8.3 1991 8.2 10.4 12.4 12.0 13.6 12.6 11.8 13.4 11.5 14.2 11.7 12.6 1992 9.4 11.9 9.5 8.6 9.5 9.7 11.3 11.5 12.7 12.5 11.9 10.7 1993 9.7 8.8 14.0 15.4 19.7 15.0 15.0 13.6 19.2 20.0 17.0 10.6 1994 14.1 15.3 13.6 15.6 15.8 13.8 18.0 19.2 19.0 19.6 15.1 12.6 1995 14.4 15.1 19.1 16.6 20.4 15.7 18.2 17.7 16.5 16.8 15.7 15.2 1996 15.3 15.2 14.9 13.8 21.3 19.3 20.8 15.5 17.3 20.6 22.4 16.1 1997 15.6 11.2 19.2 16.3 16.2 13.4 15.4 19.9 13.8 18.5 15.4 11.4 1998 14.1 12.0 14.6 21.6 13.8 13.8 16.7 16.9 16.9 18.2 17.3 16.9 1999 14.8 16.5 17.3 19.9 17.3 18.7 18.2 21.1 16.3 19.5 17.9 14.6 2000 15.2 13.3 17.2 20.8 16.8 17.4 13.1 16.1 18.7 18.0 12.4 16.4 2001 15.4 19.4 17.5 16.6 15.3 19.5 14.2 22.9 19.1 24.8 19.3 22.1 2002 16.1 18.7 13.9 18.0 18.2 20.9 17.6 18.8 17.0 20.5 15.4 16.4 2003 13.4 14.0 17.3 18.3 19.1 21.2 17.8 21.7 18.0 21.3 14.7 16.1 2004 14.4 13.9 15.9 17.7 18.3 18.4 22.2 25.7 20.1 19.6 19.3 17.3 2005 12.2 18.9 17.2 16.0 15.5 16.2 18.2 16.1 13.5 16.1 16.5 15.0 2006 11.0 15.0 15.6 15.0 21.7 17.1 18.5 17.7 16.8 19.2 16.2 16.1 2007 12.7 12.1 14.5 18.5 17.5 13.4 15.7 18.4 15.2 22.6 13.6 14.0 2008 15.2 15.9 14.4 19.8 17.9 20.5 18.2 18.8 17.7 17.2 15.3 20.1 2009 12.9 13.8 16.4 16.4 19.2 18.7 15.0 17.1 17.4 22.3 17.0 17.2 2010 - 16.8 17.6 - 19.5 21.2 - 20.3 - 20.8 16.8 17.8 2011 17.0 17.7 - 18.4 16.7 22.1 - - 19.2 17.4 - 16.1 2012 14.2 15.0 14.6 21.6 16.9 24.6 19.9 20.5 20.9 17.8 15.2 10.7 2013 15.0 14.5 14.8 18.7 18.2 18.0 20.1 20.3 15.0 18.0 18.4 13.6 2014 14.4 16.1 16.5 17.7 19.1 17.9 18.1 19.8 13.7 18.7 22.0 13.4 2015 14.2 13.0 16.1 14.6 19.2 19.9 17.6 18.5 - 19.6 20.3 - 2016 - 15.6 15.6 - 12.9 18.5 - 19.2 - - - - 2017 - 15.6 14.0 17.9 16.0 23.7 22.5 22.3 24.7 18.4 14.1 - 2018 12.0 14.4 16.8 18.0 18.8 16.0 18.4 22.3 20.1 17.9 18.0 16.0 2019 14.0 15.2 15.0 16.1 18.6 19.5 14.9 16.5 19.6 19.6 17.1 13.6 2020 11.4 14.5 16.6 18.7 15.7 15.6 17.7 23.1 21.7 18.5 17.6 14.2 2021 14.6 15.4 18.5 17.3 16.7 - 19.0 21.6 22.2 22.1 16.4 23.1 2022 15.1 15.2 17.5 19.4 19.8 20.6 17.7 18.2 22.9 - 21.5 15.9 2023 18.6 13.9 15.1 17.1 18.8 19.1 17.5 18.1 20.6 23.6 16.3 15.5 2024 15.4 16.6 13.4 15.4 - - - - - - - -