Lettau 00Z wind_speed 1986 - 9.4 6.4 10.7 10.7 11.5 9.6 8.3 7.3 9.5 3.7 8.0 1987 10.2 7.7 6.3 5.3 8.5 7.9 5.7 7.0 4.2 0.4 - 8.9 1988 9.3 7.7 8.2 9.7 8.2 10.4 9.8 13.7 7.4 12.0 5.4 7.8 1989 8.8 6.0 8.3 10.3 8.5 6.0 10.6 9.4 10.8 13.3 12.2 7.3 1990 7.5 5.5 7.8 8.6 6.0 11.6 7.4 9.4 7.9 9.2 7.3 10.8 1991 6.1 7.6 8.7 10.1 9.8 7.0 - - - - 8.1 8.3 1992 7.1 9.6 8.0 6.4 9.8 9.4 - - - - 9.1 8.1 1993 8.1 6.1 9.3 7.4 6.8 9.0 - - - - 7.8 5.0 1994 8.9 7.6 9.2 8.8 8.8 11.0 8.6 - - - 7.4 8.2 1995 7.0 8.5 7.4 6.2 7.2 12.0 - - - - 13.7 11.1 1996 8.7 - - - - - - - - - - 8.6 1997 - - - - - - - - - 10.4 - - 1998 - - 8.2 5.6 8.1 - - - - - - - 1999 - 7.2 6.4 7.2 8.7 6.9 11.1 - - 9.2 - - 2000 - - 8.6 9.8 9.0 10.0 12.8 8.7 10.5 - - - 2001 - - - - - 9.3 6.6 - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - 9.7 - - - - - - - 2006 - - - - - - - - - - - - 2007 - 5.6 - - - 14.2 10.2 - - 8.2 8.4 9.6 2008 8.5 9.2 6.3 7.4 10.7 9.8 9.9 6.2 - - - - 2009 - 4.8 6.3 9.6 6.9 6.4 7.6 4.9 4.5 10.7 12.7 7.7 2010 4.7 6.4 6.9 6.2 7.2 8.5 11.9 9.2 - 4.3 11.8 9.3 2011 5.3 8.8 8.4 9.4 8.6 8.8 - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - 10.6 9.6 8.5 9.0 8.2 8.2 13.6 12.2 13.4 6.2 7.1 2015 6.7 9.4 8.1 - 7.5 11.1 8.2 9.2 13.3 12.6 13.0 10.1 2016 8.8 10.8 6.6 8.0 8.1 7.3 7.5 8.8 - 10.8 8.2 9.1 2017 7.5 7.4 5.3 8.5 - 10.2 10.9 13.7 9.8 10.5 9.4 7.0 2018 6.0 7.2 10.6 7.1 8.9 11.4 9.6 5.9 10.9 - 10.6 9.4 2019 6.3 9.0 9.5 9.0 9.8 11.0 10.2 10.6 13.8 9.4 10.8 8.6 2020 6.9 7.1 9.6 9.6 9.9 9.8 8.3 8.7 9.5 12.5 8.8 9.2 2021 11.1 9.3 8.7 10.7 9.5 7.7 7.3 5.0 9.8 10.9 12.2 11.2 2022 9.3 9.0 9.4 8.7 8.9 8.8 11.9 13.5 10.2 12.3 8.1 8.9 2023 7.3 8.5 9.2 7.5 7.6 12.1 6.4 6.9 13.4 - - - 2024 11.0 7.1 - - - - - - - - - -