England_SW_and_S_Wales Days of Air Frost Areal series, starting from 1961 Allowances have been made for topographic, coastal and urban effects where relationships are found to exist. Seasons: Winter=Dec-Feb, Spring=Mar-May, Summer=June-Aug, Autumn=Sept-Nov. (Winter: Year refers to Jan/Feb). Values are ranked and displayed to 1 dp. Where values are equal, rankings are based in order of year descending. Data are provisional from January 2018 and Winter 2018. Last updated 04/06/2019. JAN Year FEB Year MAR Year APR Year MAY Year JUN Year JUL Year AUG Year SEP Year OCT Year NOV Year DEC Year WIN Year SPR Year SUM Year AUT Year ANN Year 28.9 1963 24.2 1986 18.1 1962 7.3 1968 3.9 1979 0.3 1991 0.0 2018 0.0 2018 0.7 1986 4.2 2003 9.7 2005 22.8 2010 66.0 1963 23.5 2013 0.3 1991 12.0 1993 78.0 2010 22.9 1979 22.7 1963 15.7 2013 7.1 1970 3.3 1996 0.2 1962 0.0 2017 0.0 2017 0.4 1972 4.1 1993 9.5 1988 15.9 1981 49.7 1979 21.0 1962 0.2 1962 10.9 2010 75.7 1963 22.3 1985 18.3 1991 13.1 1970 6.9 2013 2.3 1982 0.1 2011 0.0 2016 0.0 2016 0.3 2003 3.0 1997 9.5 1965 14.7 1963 40.9 2010 20.4 1970 0.1 2011 10.9 1988 69.3 1979 18.2 2010 18.2 1968 12.4 1969 6.5 1986 1.6 2019 0.1 1999 0.0 2015 0.0 2015 0.3 1979 3.0 1992 9.1 1985 14.4 1976 40.7 1985 17.8 1969 0.1 1999 10.0 1965 62.3 1985 17.9 1987 17.1 1969 11.2 1987 6.3 1975 1.6 1967 0.1 1989 0.0 2014 0.0 2014 0.3 1975 2.9 2018 8.6 1971 14.4 1962 40.5 1991 17.1 1979 0.1 1996 9.8 2005 62.1 1969 17.6 1980 16.6 1979 11.0 1965 5.8 1989 1.5 2010 0.1 1987 0.0 2013 0.0 2013 0.3 1974 2.2 2010 8.5 2010 14.3 1996 39.3 2011 15.5 1968 0.1 1993 9.8 1985 61.8 1996 15.2 1997 16.3 1996 10.4 2010 5.7 1990 1.5 1995 0.1 1985 0.0 2012 0.0 2012 0.3 1969 2.1 1983 7.9 1996 13.9 1961 39.3 1986 15.2 1996 0.1 1989 9.5 1971 58.9 1962 13.8 2009 16.3 1983 10.4 1976 5.7 1984 1.5 1977 0.1 1978 0.0 2011 0.0 2011 0.2 2018 1.8 1964 7.8 1993 13.7 1995 39.0 1965 15.1 1975 0.1 1987 8.4 1969 57.9 1968 13.5 1992 15.1 1981 9.8 1985 5.5 1978 1.4 1984 0.1 1977 0.0 2010 0.0 2010 0.2 2010 1.7 1981 7.8 1969 13.0 2008 37.9 1996 14.8 2010 0.1 1985 8.2 1996 57.6 1970 13.5 1977 13.4 2018 9.5 1964 5.0 2008 1.4 1968 0.1 1975 0.0 2009 0.0 2009 0.2 2007 1.6 1973 6.7 1977 12.9 2001 36.2 2009 14.8 1976 0.1 1983 8.1 1972 57.4 1965 13.2 2011 13.4 1978 9.3 1995 4.8 1969 1.2 1971 0.1 1973 0.0 2008 0.0 2008 0.2 1993 1.5 1987 6.6 1980 12.8 1964 35.8 1968 14.6 1965 0.1 1982 7.7 1983 55.7 1986 12.8 1965 13.4 1965 9.1 2006 4.6 1977 0.9 2013 0.1 1972 0.0 2007 0.0 2007 0.2 1987 1.4 2008 6.4 1972 12.7 1969 35.5 1987 14.5 1984 0.1 1981 7.7 1980 53.8 1987 12.7 1966 12.7 1970 8.7 1979 4.5 1979 0.9 1997 0.1 1971 0.0 2006 0.0 2006 0.1 2012 1.3 2012 6.4 1962 12.5 1970 34.8 1970 13.7 1995 0.1 1979 7.6 1973 52.1 2013 12.2 1991 12.4 1985 8.6 2018 4.2 1996 0.9 1974 0.1 1969 0.0 2005 0.0 2005 0.1 1999 1.3 2002 5.9 1973 11.6 1968 34.7 1969 13.7 1986 0.1 1978 7.5 1962 50.8 1976 10.8 2003 12.1 1987 8.3 1971 4.0 1976 0.8 2005 0.1 1968 0.0 2004 0.0 2004 0.1 1996 1.3 1988 5.7 1967 11.3 2009 33.7 1964 12.7 2006 0.1 1977 7.0 2003 49.0 1991 10.6 1982 11.6 2012 8.1 1973 3.9 1973 0.8 1980 0.1 1967 0.0 2003 0.0 2003 0.1 1995 1.3 1974 5.6 1983 10.3 1978 33.5 1997 12.7 1987 0.1 1976 6.9 1977 49.0 1981 10.3 2013 11.3 2010 8.0 1975 3.8 2012 0.8 1975 0.1 1966 0.0 2002 0.0 2002 0.1 1991 1.2 1972 5.6 1966 10.0 1990 33.2 1982 12.6 1973 0.1 1975 6.8 1966 48.9 2001 10.0 2000 11.0 2001 7.9 2011 3.8 1998 0.8 1965 0.1 1965 0.0 2001 0.0 2001 0.1 1990 1.2 1966 5.1 1989 9.5 1992 32.6 1977 12.4 1971 0.1 1974 6.1 1967 48.8 1964 9.9 2006 10.8 2005 7.7 1996 3.7 2016 0.7 1993 0.1 1961 0.0 2000 0.0 2000 0.1 1988 1.1 1980 4.9 1979 9.5 1967 30.7 1981 12.1 1985 0.1 1973 5.5 1979 48.3 1978 9.6 2019 10.5 2015 7.7 1974 3.7 2003 0.7 1962 0.0 2018 0.0 1999 0.0 1999 0.1 1984 1.0 1994 4.6 2013 8.9 2005 29.6 1962 11.8 1974 0.1 1972 5.4 2018 46.9 1973 9.6 1986 10.5 2006 7.6 2001 3.7 1988 0.7 1961 0.0 2017 0.0 1998 0.0 1998 0.1 1983 1.0 1975 4.5 2017 8.7 1973 29.3 2006 11.8 1964 0.1 1971 5.3 2012 46.5 1980 9.5 2001 10.4 2004 7.4 1984 3.7 1983 0.6 1994 0.0 2016 0.0 1997 0.0 1997 0.1 1982 1.0 1962 4.5 1978 8.3 2007 28.3 2013 11.4 2001 0.1 1970 5.2 1989 43.2 2003 9.4 2017 10.3 2013 7.1 2005 3.6 1981 0.6 1987 0.0 2015 0.0 1996 0.0 1996 0.1 1977 0.8 1998 4.4 2016 8.2 1982 27.8 1980 10.8 1978 0.1 1969 5.2 1964 42.4 2005 9.4 1970 10.3 2003 7.1 1986 3.4 2006 0.6 1981 0.0 2014 0.0 1995 0.0 1995 0.1 1976 0.8 1971 4.3 1995 8.0 1998 27.6 1983 10.6 2016 0.1 1968 5.0 2007 42.2 2009 9.3 1984 10.2 1976 7.0 2004 3.4 1997 0.6 1973 0.0 2013 0.0 1994 0.0 1994 0.1 1971 0.7 2007 4.3 1990 7.9 1980 27.0 2001 10.2 1980 0.1 1967 4.9 1997 41.7 2006 9.3 1964 10.0 1994 7.0 1980 3.4 1966 0.6 1969 0.0 2012 0.0 1993 0.0 1993 0.1 1965 0.7 1999 4.3 1968 7.7 2012 26.8 1992 9.9 2018 0.1 1966 4.8 2017 41.5 1984 9.1 1967 9.6 1964 6.9 1968 3.3 2001 0.5 2012 0.0 2010 0.0 1992 0.0 1992 0.1 1964 0.7 1985 4.2 2007 7.5 2014 26.8 1971 9.7 2005 0.1 1965 4.8 1978 40.8 1995 9.0 1973 9.4 2009 6.5 2016 3.3 1999 0.5 2001 0.0 2009 0.0 1991 0.0 1991 0.1 1963 0.7 1970 4.0 1991 7.4 1975 25.9 2018 9.4 1982 0.1 1964 4.8 1975 40.1 1971 9.0 1961 9.3 1984 6.5 1993 3.3 1991 0.4 2018 0.0 2008 0.0 1990 0.0 1990 0.1 1962 0.5 2009 3.9 2012 7.2 1979 25.9 2015 9.3 1977 0.1 1961 4.7 2016 39.6 1967 8.9 1978 8.8 1962 5.8 1963 3.2 2000 0.4 2007 0.0 2007 0.0 1989 0.0 1989 0.0 2017 0.5 1991 3.9 2001 7.0 1997 25.6 2003 9.2 1989 0.0 2018 4.7 2013 39.4 1983 8.8 1998 8.7 1973 5.3 1972 3.2 1974 0.4 1991 0.0 2006 0.0 1988 0.0 1988 0.0 2016 0.5 1986 3.9 1998 6.8 2003 24.8 1978 9.0 2008 0.0 2017 4.6 1998 39.1 1982 8.1 1968 8.3 1971 5.2 2009 2.9 2010 0.4 1966 0.0 2005 0.0 1987 0.0 1987 0.0 2015 0.5 1984 3.8 2006 6.8 1991 24.6 1976 8.7 1990 0.0 2016 4.6 1992 37.8 1992 8.0 2015 8.2 2016 5.0 1978 2.9 1995 0.4 1963 0.0 2004 0.0 1986 0.0 1986 0.0 2014 0.5 1982 3.7 1976 6.6 2017 24.2 2004 8.4 2011 0.0 2015 4.6 1987 37.6 1997 8.0 1972 7.9 2008 4.8 2015 2.9 1994 0.3 2017 0.0 2003 0.0 1985 0.0 1985 0.0 2013 0.5 1961 3.6 1982 6.6 1965 23.6 1984 8.3 2003 0.0 2014 4.5 1995 37.0 1977 7.9 1996 7.6 1967 4.4 1982 2.8 1971 0.3 2016 0.0 2002 0.0 1984 0.0 1984 0.0 2011 0.4 1976 3.5 1975 6.4 2000 23.6 1966 8.1 2004 0.0 2013 4.5 1991 36.7 2012 7.6 1981 7.1 1988 4.4 1961 2.8 1965 0.3 2003 0.0 2001 0.0 1983 0.0 1983 0.0 2009 0.4 1967 3.5 1961 6.4 1987 22.0 2002 8.1 1993 0.0 2012 4.5 1990 36.6 2008 7.0 2004 6.6 1982 4.3 2003 2.7 1982 0.3 1988 0.0 2000 0.0 1982 0.0 1982 0.0 2008 0.4 1965 3.3 1964 6.3 1989 21.2 1994 7.9 1988 0.0 2010 4.4 1968 36.5 2018 7.0 1976 6.5 1992 4.0 1966 2.4 1980 0.3 1985 0.0 1998 0.0 1981 0.0 1981 0.0 2006 0.3 2017 2.9 1987 6.0 1984 21.0 1973 7.7 1966 0.0 2009 4.3 1976 35.7 1966 6.9 1962 5.7 2019 3.9 1988 2.3 1967 0.3 1978 0.0 1997 0.0 1980 0.0 1980 0.0 2005 0.3 2015 2.7 2008 5.8 2016 20.7 1967 7.5 1963 0.0 2008 4.2 2008 34.9 1975 6.7 1995 5.6 1999 3.8 2008 2.2 2002 0.3 1976 0.0 1996 0.0 1979 0.0 1979 0.0 2004 0.3 2011 2.5 2003 5.8 2004 20.5 2012 7.2 1983 0.0 2007 4.2 1982 34.5 2016 6.2 1999 5.6 1989 3.5 2000 2.2 1964 0.3 1972 0.0 1995 0.0 1978 0.0 1978 0.0 2002 0.3 2000 2.3 2004 5.7 1999 20.3 2017 7.2 1967 0.0 2006 4.0 1961 34.1 1993 6.1 1971 5.2 2017 3.3 2002 2.2 1962 0.2 2015 0.0 1994 0.0 1977 0.0 1977 0.0 2001 0.3 1978 2.2 2018 5.5 1985 19.9 1999 6.9 1991 0.0 2005 3.9 2001 33.6 2004 6.0 1969 4.9 1974 3.3 1983 2.1 2017 0.2 2011 0.0 1993 0.0 1976 0.0 1976 0.0 2000 0.3 1969 2.2 1981 5.4 1986 19.7 2005 6.8 2000 0.0 2004 3.9 1981 33.5 1961 5.8 2018 4.8 2007 3.3 1977 2.0 1985 0.2 2006 0.0 1992 0.0 1975 0.0 1975 0.0 1998 0.2 2016 2.1 1999 5.3 1993 19.7 1998 6.6 2009 0.0 2003 3.8 2006 31.2 1998 5.8 2012 4.7 1977 3.3 1967 1.9 2019 0.2 2004 0.0 1990 0.0 1974 0.0 1974 0.0 1997 0.2 1979 2.0 2014 5.0 1983 19.6 2000 6.6 1999 0.0 2002 2.8 1999 30.9 1989 5.8 1994 4.7 1975 3.2 2007 1.9 1992 0.2 2002 0.0 1988 0.0 1973 0.0 1973 0.0 1994 0.1 2014 1.9 2015 4.8 2006 18.7 2008 6.5 2015 0.0 2001 2.8 1986 30.8 1988 5.3 2016 4.6 1993 3.2 1999 1.8 2005 0.2 1998 0.0 1986 0.0 1972 0.0 1972 0.0 1992 0.1 2013 1.9 1970 4.6 1994 18.2 1993 6.5 1972 0.0 2000 2.8 1974 29.9 1972 5.2 2002 4.4 1966 3.2 1991 1.5 2015 0.2 1990 0.0 1984 0.0 1971 0.0 1971 0.0 1989 0.1 2004 1.8 1997 4.5 2002 17.5 1974 6.4 1997 0.0 1998 2.7 1970 29.7 2017 4.5 1989 4.0 1998 3.2 1989 1.3 2009 0.2 1989 0.0 1983 0.0 1970 0.0 1970 0.0 1985 0.1 1996 1.8 1984 4.0 1966 17.2 2019 6.4 1981 0.0 1997 2.4 2004 29.3 2000 4.1 1993 4.0 1997 2.8 2014 1.3 1963 0.2 1983 0.0 1982 0.0 1969 0.0 1969 0.0 1981 0.1 1995 1.7 2000 3.7 1971 17.0 1988 6.3 2012 0.0 1995 2.4 1984 29.1 2011 3.9 2007 4.0 1972 2.8 1990 0.9 2018 0.1 2014 0.0 1981 0.0 1968 0.0 1968 0.0 1980 0.1 1990 1.7 1963 3.3 2013 15.7 1972 5.8 2019 0.0 1994 2.2 2015 27.6 2015 3.8 1974 3.9 2002 2.3 1981 0.9 2007 0.1 2009 0.0 1980 0.0 1967 0.0 1967 0.0 1978 0.1 1989 1.6 1992 3.3 1972 13.8 2016 5.8 1998 0.0 1992 2.2 2014 27.1 1994 3.7 2014 3.9 2000 2.2 2019 0.9 1993 0.1 2008 0.0 1979 0.0 1966 0.0 1966 0.0 1973 0.1 1977 1.5 1986 3.1 2011 13.5 1995 5.7 2002 0.0 1990 2.0 2000 27.0 1999 3.5 1988 3.3 2011 2.1 2012 0.9 1972 0.1 2000 0.0 1976 0.0 1965 0.0 1965 0.0 1970 0.1 1968 1.2 1974 2.5 1977 13.4 2007 5.5 1961 0.0 1988 1.9 2002 26.9 1990 3.2 2005 3.0 1980 2.1 1997 0.8 2004 0.1 1999 0.0 1974 0.0 1964 0.0 1964 0.0 1968 0.1 1963 0.7 2011 1.9 2018 11.5 1989 5.2 1994 0.0 1986 1.9 1963 26.4 2007 3.1 1983 2.2 1995 1.8 1998 0.8 1987 0.1 1992 0.0 1970 0.0 1963 0.0 1963 0.0 1967 0.0 2006 0.6 2002 1.4 1988 10.1 1990 4.4 2007 0.0 1984 1.4 1994 24.8 1974 2.8 1975 1.5 2014 1.7 1994 0.5 1961 0.1 1986 0.0 1964 0.0 1962 0.0 1962 0.0 1966 0.0 2005 0.4 2009 1.3 1974 8.8 1975 3.7 2017 0.0 1980 1.0 2011 21.2 2002 2.6 2008 1.2 1990 1.6 1992 0.4 2014 0.1 1970 0.0 1963 0.0 1961 0.0 1961 0.0 1961 0.0 2001 0.3 1994 0.3 2015 8.5 2014 3.7 1992 0.0 1963 1.0 2009 18.1 2014 2.6 1990 1.0 1961 1.3 2017 0.3 2011 0.1 1964 3.3 2014