Lettau wind_direction 1986 - 162.7 168.0 161.4 158.4 155.1 170.5 182.3 191.4 174.9 29.9 172.5 1987 160.5 183.6 205.6 153.8 171.5 166.4 3.9 169.5 59.1 - - 152.8 1988 163.9 172.4 182.2 184.6 177.3 160.2 162.8 153.3 140.9 162.2 178.9 151.6 1989 147.7 230.8 179.2 160.0 168.6 177.5 184.4 171.5 180.9 155.2 146.6 178.1 1990 166.6 212.6 151.0 146.5 157.1 177.5 197.0 186.1 180.6 179.1 171.8 156.4 1991 155.0 172.7 180.4 172.5 138.7 157.1 - - - - 159.6 161.9 1992 170.9 172.0 157.9 168.7 167.3 176.9 - - - - 185.9 166.7 1993 182.6 190.1 174.6 173.0 186.4 - - - - - 155.8 207.7 1994 164.2 182.0 191.2 159.2 158.8 171.1 155.6 - - - 162.4 131.6 1995 157.8 159.4 163.8 169.4 186.5 141.8 - - - - 160.6 162.6 1996 141.1 - - - - - - - - - - 158.0 1997 - - - - - - - - - - - - 1998 - - 169.3 150.1 172.2 - - - - - - - 1999 - 168.2 184.8 179.0 178.6 186.7 161.7 - - 164.3 - - 2000 - - 146.7 152.5 158.5 154.5 164.6 158.3 56.2 - - - 2001 - - - - - 71.7 309.6 - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - 332.3 343.6 - - 88.7 137.7 61.5 - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -