Lettau 12Z wind_speed 1986 - 6.9 6.2 9.7 11.1 10.6 9.9 8.6 7.0 9.1 4.3 6.0 1987 7.3 5.7 5.2 5.1 8.7 8.8 6.3 7.4 4.8 0.2 - 7.9 1988 8.1 6.0 9.0 8.8 7.8 10.2 9.0 14.1 7.9 12.8 5.5 6.2 1989 7.6 5.3 7.2 8.2 8.4 6.0 8.6 10.5 11.0 11.4 11.5 6.1 1990 6.7 5.5 6.2 9.0 6.5 11.7 6.8 9.1 8.3 8.2 6.8 10.1 1991 5.2 6.2 8.7 8.9 8.9 8.0 7.1 - - - 8.6 7.1 1992 5.8 7.7 8.3 6.6 8.0 9.0 - - - - 7.4 5.8 1993 6.1 6.7 8.1 7.7 6.5 9.0 - - - - 6.7 3.8 1994 6.9 6.3 7.4 8.1 8.3 8.4 7.8 - - - 6.1 6.3 1995 5.1 7.9 6.9 7.2 7.5 11.2 - - - - 11.8 7.9 1996 7.6 - - - - - - - - - - 7.1 1997 5.6 - - - - - - - - - - - 1998 - - 8.4 5.8 10.0 - - - - - - - 1999 - 6.6 6.5 7.3 8.1 7.1 10.8 - - 9.5 - - 2000 - - 9.0 10.3 8.0 11.8 13.2 7.5 10.8 - - - 2001 - - - - - 9.7 8.3 - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - 6.4 - - 8.7 14.9 10.3 10.1 10.4 6.1 6.4 8.2 2008 6.4 7.1 6.8 7.6 11.1 10.3 9.8 6.3 - - - - 2009 - 4.9 6.4 10.7 7.9 7.5 8.3 5.4 2.8 10.1 9.2 5.5 2010 3.8 6.4 6.6 5.4 7.4 8.2 11.2 9.7 - - 9.0 7.3 2011 4.6 8.9 8.4 9.1 8.2 8.8 - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - 10.3 9.5 8.4 9.8 8.2 7.4 16.3 12.5 11.8 5.5 6.9 2015 7.2 8.2 7.7 - 8.9 9.9 9.1 10.4 14.1 12.3 11.0 8.4 2016 8.8 9.6 6.2 6.6 7.4 6.1 6.8 9.2 10.2 10.2 8.5 7.6 2017 6.4 6.2 6.2 8.2 - 10.3 10.4 13.5 7.8 9.7 8.7 5.7 2018 5.7 7.2 11.1 7.5 8.0 10.7 9.4 5.8 12.9 - 9.0 8.5 2019 5.8 8.9 9.2 8.7 9.9 11.1 8.6 10.7 14.3 10.2 7.6 6.6 2020 6.6 6.8 8.7 9.9 10.0 - 7.4 9.9 9.0 10.7 7.0 6.9 2021 9.0 8.3 7.8 9.2 8.7 9.0 7.6 4.5 9.3 11.3 9.3 9.5 2022 7.9 8.6 9.2 7.9 8.7 8.8 11.4 - 10.0 10.4 7.0 8.1 2023 5.2 7.8 9.0 7.0 7.4 12.0 6.4 6.1 12.2 - - - 2024 8.9 7.1 - - - - - - - - - -