Davis 12Z 500hPa wind_speed 1957 - - - - - - - - - - - - 1958 - - - - - - - - - - - - 1959 - - - 29.6 24.6 22.1 17.4 25.1 33.8 23.2 19.9 21.6 1960 15.0 17.9 26.3 23.4 18.5 18.0 18.7 20.1 18.7 20.5 15.0 21.2 1961 9.7 22.2 20.3 22.8 27.8 22.5 27.1 22.7 20.4 25.6 22.5 15.2 1962 13.9 17.9 19.5 35.1 23.9 34.9 19.4 23.2 19.7 23.8 23.6 16.4 1963 19.9 20.2 21.7 24.6 29.0 20.8 28.4 34.2 27.0 18.9 23.3 19.8 1964 20.0 14.3 26.6 24.3 20.0 23.1 14.9 25.3 20.2 18.2 - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - - - 1969 - - - 18.6 24.1 27.7 25.3 26.4 21.7 23.6 22.1 22.3 1970 17.0 22.4 24.6 22.6 28.7 26.1 24.4 29.3 30.5 21.9 17.4 19.6 1971 20.4 26.6 23.7 25.9 21.7 19.1 26.6 26.0 36.0 26.3 18.3 19.2 1972 25.0 23.9 14.8 28.3 30.8 16.8 21.5 28.5 30.6 29.2 15.1 26.8 1973 14.8 18.2 28.3 22.0 28.7 19.2 24.8 24.4 22.7 23.8 18.9 17.1 1974 17.8 24.8 20.9 24.8 20.5 28.2 24.3 23.4 22.4 24.1 22.2 20.1 1975 17.8 19.0 18.6 23.8 27.1 26.2 24.9 23.4 25.9 31.0 16.4 16.7 1976 14.5 16.3 24.6 26.7 22.4 21.9 21.7 18.0 22.2 17.4 15.8 27.0 1977 17.4 15.9 20.5 18.9 22.6 19.6 17.5 17.9 20.2 20.5 18.6 16.7 1978 14.3 14.0 22.7 21.3 25.5 20.5 17.7 22.4 24.0 19.6 22.1 14.9 1979 16.1 31.6 23.4 18.0 20.7 15.7 19.6 15.4 19.1 24.4 23.2 15.4 1980 16.2 22.9 13.6 19.4 37.3 27.6 38.2 21.7 30.4 28.9 17.8 15.6 1981 19.3 26.4 19.1 27.3 26.4 23.9 21.7 21.4 27.5 18.9 17.0 21.0 1982 14.5 15.1 39.5 20.8 25.7 18.3 21.5 27.1 27.7 25.1 28.2 17.4 1983 20.3 18.6 25.3 20.8 17.5 24.6 25.3 24.4 23.8 26.1 19.9 21.0 1984 17.6 15.8 23.8 31.6 19.8 24.7 17.7 23.0 25.0 25.6 20.0 19.9 1985 17.8 24.2 20.8 29.3 26.0 27.5 33.3 23.0 23.9 19.0 17.6 19.9 1986 17.0 20.6 21.2 28.4 22.6 26.5 26.5 20.4 25.5 28.2 16.5 12.2 1987 21.7 15.6 27.0 26.2 25.1 28.5 20.1 22.6 22.1 17.1 19.3 17.8 1988 24.2 15.2 20.8 18.8 21.0 23.1 20.2 23.6 17.8 18.8 14.0 13.6 1989 13.5 20.8 21.5 15.9 21.7 24.8 19.5 25.2 23.1 29.4 18.6 23.8 1990 18.7 16.9 21.6 23.1 22.5 22.1 27.2 15.4 18.9 - - 16.8 1991 - 19.5 26.5 19.6 22.6 19.6 34.3 20.1 22.1 15.8 17.5 17.0 1992 13.3 19.7 22.3 33.4 31.8 31.4 23.6 18.7 17.8 24.1 - - 1993 - - - - - - - - - - - 18.9 1994 - - - - - - 27.0 19.5 18.1 18.4 20.6 20.1 1995 16.0 18.5 10.0 7.1 11.7 7.6 4.8 4.6 7.3 19.0 18.4 15.8 1996 16.3 15.6 23.3 21.4 30.2 21.4 18.2 25.1 23.9 20.5 18.2 17.4 1997 16.2 21.6 20.8 23.8 21.7 16.7 26.2 20.9 18.9 14.7 21.8 15.6 1998 13.4 15.2 27.9 26.4 19.7 27.4 22.9 21.2 21.9 19.2 21.5 15.1 1999 15.0 15.5 25.7 22.7 31.9 27.9 20.5 21.7 19.1 19.0 22.1 13.1 2000 16.7 18.9 22.0 23.7 25.5 21.5 22.1 23.0 18.3 26.0 24.0 12.0 2001 11.2 22.4 15.0 21.9 20.2 20.8 20.3 17.6 17.5 23.0 15.2 19.0 2002 15.6 14.7 21.4 21.8 22.8 18.7 17.0 16.2 21.7 18.2 14.7 15.0 2003 14.8 18.2 14.3 21.0 21.8 21.9 20.1 17.6 19.2 13.1 18.1 16.4 2004 16.7 14.6 21.9 25.4 16.4 23.4 - 18.2 15.8 17.2 20.8 - 2005 - - - - - - - - - - 17.3 22.7 2006 17.3 14.6 - - - - - - - - 27.2 14.0 2007 20.5 11.6 20.7 27.5 25.0 26.8 15.7 20.2 22.9 22.1 15.2 18.8 2008 14.1 13.3 - - - - - - - - - 27.8 2009 14.7 19.2 - - - - - - - - 24.6 18.3 2010 15.0 21.0 16.8 19.5 17.4 21.1 27.3 26.8 26.9 19.4 16.5 15.9 2011 18.4 20.4 20.8 16.7 22.7 25.2 28.7 20.3 18.4 15.4 20.1 16.0 2012 11.6 19.9 19.4 17.2 27.5 32.4 24.1 25.4 22.4 17.6 - 18.1 2013 17.9 - - - - - - - - - 21.1 15.6 2014 16.9 14.9 23.9 15.8 28.4 27.2 24.4 23.7 21.3 19.3 15.6 15.2 2015 17.3 - 22.4 25.5 28.4 22.5 28.6 18.9 24.5 14.2 24.8 17.6 2016 17.0 16.9 - - - - - - - - 17.7 20.2 2017 13.4 14.6 23.8 20.9 31.3 18.6 24.6 25.6 21.4 17.6 21.5 18.3 2018 17.4 16.9 26.6 19.1 16.0 28.0 25.9 27.1 17.4 19.0 18.2 19.1 2019 18.3 24.2 19.4 25.3 20.0 27.4 14.3 22.2 19.0 25.7 17.1 13.4 2020 19.5 14.7 25.5 18.2 28.2 26.5 28.2 27.0 17.8 24.0 22.5 15.3 2021 16.6 14.1 26.7 22.3 28.9 23.3 21.6 20.1 25.0 21.7 21.0 19.6 2022 19.5 13.1 19.6 20.3 23.7 23.9 24.3 24.5 18.5 19.1 15.1 17.5 2023 14.9 20.0 28.0 17.7 25.3 18.6 24.9 26.9 25.5 17.8 18.0 19.0 2024 18.7 17.6 17.3 31.7 - - - - - - - -