Ferrell 18Z wind_speed 1981 - 10.2 12.7 11.8 16.8 13.2 11.0 11.2 10.2 9.5 9.0 7.6 1982 7.1 9.2 9.1 10.5 9.1 13.4 8.1 15.8 10.4 10.6 13.3 9.9 1983 5.5 7.7 14.2 17.0 17.1 9.7 10.1 - - - - - 1984 6.2 11.0 12.2 15.3 11.7 16.8 11.0 9.6 9.7 - - - 1985 - 7.6 13.1 10.2 12.8 - - - - - - - 1986 - 7.6 9.1 10.4 16.6 7.4 - - - - - - 1987 - 9.6 7.7 7.7 13.0 12.5 10.1 10.3 9.0 7.8 5.2 7.2 1988 6.4 6.1 10.9 12.4 14.6 15.2 9.7 17.9 13.2 12.4 7.0 8.0 1989 9.7 7.0 9.3 13.3 - - - - - 12.5 12.9 5.9 1990 5.5 10.7 10.6 12.6 13.7 12.6 10.6 11.3 8.7 11.0 8.7 12.2 1991 6.0 9.8 10.7 12.9 15.4 13.7 - - - - 11.8 11.1 1992 7.1 8.8 18.3 9.7 11.3 10.4 12.1 - - - - - 1993 - 14.3 12.4 11.7 10.2 16.8 9.9 13.2 11.5 9.1 6.8 5.8 1994 8.2 8.4 9.1 10.2 12.4 10.5 13.1 10.3 7.1 12.0 8.9 8.0 1995 8.8 9.9 8.5 9.4 12.1 13.3 8.1 12.1 13.3 9.6 11.1 9.1 1996 8.6 6.5 8.1 10.2 9.1 13.8 - 12.0 7.4 9.6 10.0 8.8 1997 6.3 10.3 7.9 7.1 15.7 - - - - 14.4 15.4 7.0 1998 5.4 9.1 9.9 7.9 - - - - - - - - 1999 - 8.0 - - - - - - - - - - 2000 0.0 - - - - - - - - - - - 2001 - 6.9 5.9 6.3 10.1 16.5 13.4 5.7 9.7 11.7 9.4 9.5 2002 5.5 7.7 14.1 10.7 14.4 11.5 3.5 - - 10.4 9.2 7.4 2003 8.6 7.7 9.9 7.7 17.4 12.8 16.8 - 13.7 12.7 12.4 8.8 2004 5.6 6.5 - 10.3 11.7 13.7 9.7 9.3 - - 12.8 7.0 2005 8.3 9.1 11.1 - 17.2 13.6 12.2 11.1 8.1 13.7 9.4 9.3 2006 8.4 9.0 8.7 7.8 8.9 12.5 7.9 15.2 17.3 10.2 9.4 8.3 2007 8.3 11.4 11.0 8.6 11.9 15.9 14.9 16.1 14.7 12.5 12.1 11.2 2008 10.1 11.0 9.5 11.9 12.7 18.5 11.9 5.1 19.4 10.2 9.3 6.3 2009 6.7 8.1 8.2 16.9 9.0 13.3 11.4 9.1 9.0 12.3 12.7 5.1 2010 6.7 11.5 12.0 14.5 11.1 10.7 12.7 8.8 11.4 11.5 8.9 9.6 2011 5.7 8.3 12.2 9.1 11.7 14.2 14.6 9.4 - 9.7 11.6 6.5 2012 6.9 10.2 11.8 10.7 17.5 10.6 7.5 11.1 - - 8.7 - 2013 8.1 10.2 11.4 8.5 13.5 11.0 - - 12.9 11.0 13.4 7.9 2014 - - 10.4 10.4 14.0 - - 21.2 - - - - 2015 - 10.6 7.1 9.7 11.2 14.3 - - - 11.4 13.2 7.9 2016 12.5 10.6 9.8 11.0 - 9.5 - - 13.1 12.6 6.5 9.8 2017 9.2 7.5 12.1 11.1 - - - - - 13.9 9.8 7.1 2018 7.8 10.2 13.7 9.3 - 15.5 10.7 8.9 - 16.2 10.5 10.8 2019 7.8 12.2 12.0 13.3 18.0 - 14.3 - - 13.0 11.9 8.9 2020 9.1 10.9 14.5 - - - - - - 15.9 8.7 10.4 2021 11.9 8.6 12.6 10.5 - - - - - 15.7 11.4 12.9 2022 10.5 10.7 13.9 14.0 19.4 - - - - 14.7 8.2 11.9 2023 8.1 10.2 10.8 11.9 11.3 - - - - 14.2 11.0 11.2 2024 12.4 - - - - - - - - - - -