Marsh 12Z wind_speed 1987 - - - - - - - - - - - - 1988 - - - - - - - - - 15.1 - - 1989 12.5 - - 16.7 - 15.1 13.8 - - 14.4 8.2 - 1990 - - - - 9.2 - - - 10.2 11.2 - - 1991 8.3 - 12.7 12.0 - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - 19.7 16.4 11.5 1994 - - 13.6 16.8 - 14.8 18.3 19.1 19.0 20.1 15.0 - 1995 - - - - - 14.5 19.3 19.4 - 15.8 16.0 14.8 1996 15.1 - - 14.9 20.7 19.4 - - - 20.8 23.1 - 1997 14.7 10.7 19.0 16.6 - - - - 14.2 19.1 - - 1998 14.1 - 15.5 21.4 12.9 13.8 17.0 17.0 17.0 18.4 17.2 16.9 1999 14.8 15.8 17.7 19.9 17.5 18.7 18.2 21.8 16.3 20.7 18.3 14.6 2000 15.2 13.3 16.9 21.4 - 17.6 13.1 16.7 18.7 18.6 12.2 15.7 2001 15.5 20.1 - 17.1 15.3 19.3 - 23.0 19.0 25.1 - 22.3 2002 - 18.7 13.9 - 18.2 21.2 18.2 18.7 17.0 20.5 16.2 16.3 2003 13.4 14.3 17.7 18.3 19.6 22.3 18.0 - - 21.3 15.0 15.7 2004 14.5 13.9 15.4 18.3 19.0 18.4 22.2 25.7 19.2 - - 17.6 2005 12.5 18.9 17.1 16.3 15.5 16.4 18.4 15.8 13.5 16.7 16.3 15.2 2006 - - 15.3 14.4 - - - 18.0 15.6 - 16.6 16.6 2007 12.9 12.0 13.2 - - - 15.4 18.4 15.5 22.6 13.5 14.3 2008 15.1 15.9 14.1 19.6 18.0 20.7 18.0 18.2 17.7 - 15.3 19.4 2009 12.8 13.8 16.5 - - - - - - - - - 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 20.2 13.3 - - 20.7 16.0 16.4 14.4 2025 13.5 13.9 16.6 - 16.7 20.0 17.6 21.4 17.9 17.3 12.2 17.7 2026 14.1 - 13.5 17.2 17.0 18.1 22.2 14.3 23.1 - - -