Marsh 18Z wind_speed 1970 10.3 12.2 11.8 13.6 13.0 12.5 10.1 10.5 12.0 11.4 13.1 13.8 1971 11.6 10.5 14.7 13.2 14.2 13.5 15.7 16.5 14.2 16.2 12.9 17.4 1972 17.3 15.3 15.2 16.0 14.1 14.9 17.2 12.5 15.9 12.7 14.1 16.2 1973 10.3 12.9 15.0 14.7 13.5 11.2 13.1 13.7 17.0 12.1 11.3 10.9 1974 - - - - - - - - - - - - 1975 12.6 12.1 13.8 17.0 11.9 11.5 10.7 15.7 11.9 14.0 11.0 12.2 1976 11.8 11.1 9.7 12.1 16.0 13.5 12.4 16.5 17.4 18.2 13.2 12.6 1977 11.8 12.9 11.7 13.6 14.7 16.6 9.3 14.2 17.2 15.6 11.7 11.8 1978 8.8 11.1 11.2 9.7 8.8 11.3 8.9 10.7 12.2 12.4 10.5 12.7 1979 10.7 12.2 13.4 17.3 10.0 15.5 15.0 15.0 14.5 14.9 12.7 11.4 1980 11.7 13.2 13.1 13.7 9.9 14.3 7.8 11.4 10.5 12.8 12.6 9.1 1981 11.4 11.0 9.4 13.4 14.1 11.2 13.3 16.1 12.6 11.6 12.9 10.8 1982 11.2 10.8 12.4 13.7 13.8 11.4 13.2 14.5 13.8 14.0 12.2 12.3 1983 13.7 11.4 9.4 11.0 10.7 13.3 12.6 10.5 11.4 12.3 12.2 10.0 1984 9.0 7.7 6.8 10.4 10.5 6.3 9.5 12.0 13.1 11.9 11.8 11.4 1985 15.4 12.5 12.2 13.0 17.6 12.3 17.4 14.3 15.6 15.5 13.0 13.5 1986 14.2 12.1 14.5 11.5 17.0 15.4 13.0 16.2 15.0 13.2 14.1 12.6 1987 11.8 9.2 13.8 13.1 13.8 12.5 10.7 12.4 13.5 16.2 13.5 10.7 1988 11.6 11.9 12.6 10.5 10.0 15.0 11.6 10.3 11.3 14.9 13.3 10.5 1989 13.7 11.6 12.7 16.5 13.5 15.8 14.0 14.4 17.1 14.8 7.9 9.5 1990 10.6 11.4 11.3 13.6 9.3 9.5 12.1 14.1 12.3 11.0 11.0 8.2 1991 8.4 13.9 11.8 13.2 12.7 10.7 12.4 14.9 12.4 15.5 13.6 13.4 1992 11.3 13.0 10.5 8.5 10.8 10.3 11.3 11.4 11.9 12.1 11.5 12.0 1993 11.1 9.5 15.8 16.6 20.1 17.0 13.5 14.3 18.5 21.5 18.4 12.8 1994 16.0 17.8 16.0 15.2 15.1 16.6 20.2 20.7 20.1 17.8 16.5 13.2 1995 14.9 14.6 18.8 16.9 20.6 16.2 18.9 18.2 16.2 18.1 17.7 15.9 1996 18.0 16.7 16.5 15.9 20.5 18.4 20.7 15.5 19.5 21.5 19.7 15.8 1997 15.5 12.9 19.4 17.2 18.2 16.7 17.7 20.1 15.5 18.2 15.1 11.7 1998 13.8 14.7 15.7 21.6 15.5 13.5 17.4 18.2 15.8 19.8 16.9 16.1 1999 15.5 17.8 15.5 19.1 17.1 17.2 16.7 22.5 17.5 20.7 19.9 14.6 2000 17.8 16.4 18.1 19.4 17.6 19.6 14.6 19.1 21.6 18.4 13.9 17.1 2001 14.5 19.5 19.4 17.0 16.3 18.4 17.8 24.3 23.3 24.3 20.8 20.8 2002 16.7 20.0 16.0 20.0 19.0 20.4 19.0 17.5 15.8 21.6 15.0 20.1 2003 15.0 16.9 18.5 18.0 17.0 22.6 16.6 22.1 19.6 21.8 15.2 16.1 2004 15.4 14.9 14.8 17.3 16.3 19.2 21.0 26.3 22.3 20.5 19.2 18.3 2005 14.3 19.5 18.4 14.7 13.3 17.2 18.9 16.4 14.1 18.0 17.1 15.4 2006 11.9 15.1 17.3 15.1 20.6 17.8 18.9 17.2 18.1 19.5 16.1 17.1 2007 14.3 12.9 14.0 17.0 15.8 16.3 15.9 19.8 17.8 20.5 14.5 13.4 2008 14.8 15.9 14.5 19.4 15.9 20.8 17.4 20.5 16.3 16.7 15.7 18.1 2009 13.9 17.6 15.6 16.2 19.7 19.3 16.0 18.2 18.5 21.3 15.4 15.6 2010 16.8 18.9 18.8 - 19.8 21.0 - 19.0 - 20.5 19.5 - 2011 16.3 16.0 - 17.8 18.5 22.1 16.0 12.5 20.8 16.9 19.5 - 2012 15.9 16.6 17.2 21.1 15.2 23.6 18.2 20.8 21.1 19.0 16.0 11.2 2013 14.6 13.5 15.5 18.9 19.6 17.7 21.0 17.3 15.3 16.6 17.1 13.9 2014 14.3 18.1 - 18.2 17.9 18.8 16.7 18.6 16.6 20.9 21.6 15.4 2015 13.5 15.0 14.5 16.8 16.3 19.4 18.1 18.4 23.4 21.5 18.7 - 2016 - 16.4 17.1 - - 18.2 - 17.3 - - - - 2017 - 15.6 14.0 17.2 14.1 22.2 18.8 - 24.0 18.0 14.5 - 2018 13.1 14.6 19.1 20.3 18.5 18.3 - 19.6 18.2 18.8 19.7 17.5 2019 13.2 12.5 13.9 18.4 17.2 18.6 14.0 18.2 22.3 20.6 19.8 13.6 2020 13.0 16.2 16.7 17.9 14.4 17.9 17.0 24.3 19.4 20.7 18.7 16.4 2021 15.0 17.2 19.2 19.0 17.0 15.6 18.8 21.3 21.8 21.9 17.9 22.4 2022 15.3 16.6 17.1 17.3 18.1 21.0 18.9 22.0 19.6 20.4 23.4 16.8 2023 18.7 15.8 16.2 15.8 17.4 20.4 18.6 20.0 19.3 22.1 17.8 14.8 2024 14.6 17.1 13.7 17.9 - - - - - - - -