Lettau 18Z wind_direction 1986 - 168.2 159.7 172.4 156.6 156.7 166.0 180.2 201.3 175.8 54.6 170.4 1987 157.5 185.5 212.0 144.4 178.3 164.4 8.2 161.8 131.2 - - 155.1 1988 171.7 183.7 179.6 180.9 177.7 164.8 148.1 146.4 122.0 169.2 186.7 156.5 1989 148.5 224.8 180.4 173.9 168.7 181.3 184.5 176.5 177.7 155.5 143.2 178.9 1990 149.9 175.9 152.1 131.2 143.7 186.6 199.2 192.6 181.5 178.3 173.8 160.5 1991 353.3 157.9 182.5 178.8 135.9 169.7 210.4 - - - 158.7 162.3 1992 175.9 170.9 169.4 171.1 157.9 171.9 - - - - 181.1 164.8 1993 177.5 198.1 168.8 164.2 198.1 - - - - - 142.0 218.5 1994 169.3 180.8 182.0 162.2 170.8 173.3 161.3 - - - 155.4 128.7 1995 158.2 151.1 173.9 159.9 159.0 149.0 - - - - 159.9 160.2 1996 150.0 - - - - - - - - - - 152.7 1997 165.1 - - - - - - - - - - - 1998 - - 174.5 150.2 187.6 - - - - - - - 1999 - 175.0 207.4 195.8 176.8 180.0 159.4 - - 164.9 - - 2000 - - 147.6 152.1 158.6 154.0 162.9 160.3 45.9 - - - 2001 - - - - - 124.6 341.9 - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - 40.3 - - 282.7 - - 2004 - - - - - - - - - - - - 2005 - - - 338.6 - 342.2 51.7 86.5 124.4 59.7 - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -