Midlands 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 December 2012 and Winter 2013. Last updated 01/05/2013. 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 28.3 1963 27.3 1963 21.1 1962 9.5 1968 4.6 1979 0.6 1991 0.0 2012 0.1 1964 1.2 1986 5.6 1997 13.5 1988 23.2 2010 75.2 1963 24.5 1962 0.6 1991 17.6 1993 84.2 1963 26.4 1979 25.2 1986 18.8 2013 8.4 2013 3.9 1996 0.6 1962 0.0 2011 0.0 2012 0.5 1969 5.5 1993 13.4 1965 22.5 1981 63.4 1979 24.2 1970 0.6 1962 16.3 1988 83.2 2010 24.2 1985 22.2 1979 16.2 1970 7.9 1984 2.4 1982 0.3 1989 0.0 2010 0.0 2011 0.3 1987 4.1 1992 12.7 1985 19.7 1962 49.0 1985 23.1 1969 0.3 1989 14.0 1965 83.1 1979 20.8 1987 20.5 1983 15.6 1987 7.9 1970 2.1 1984 0.2 1975 0.0 2009 0.0 2010 0.3 1979 3.8 2003 12.6 1996 19.4 1961 47.9 2010 19.2 1996 0.2 1975 13.4 1973 76.3 1985 18.6 1997 20.5 1968 15.4 1969 7.3 1969 1.8 1967 0.1 1985 0.0 2008 0.0 2009 0.3 1975 3.7 1983 12.0 1993 18.6 1976 46.6 1986 18.5 1995 0.1 2011 13.3 1985 75.8 1969 18.6 1980 19.7 1991 13.4 1976 7.1 1990 1.7 1971 0.1 1977 0.0 2007 0.0 2008 0.3 1974 3.3 1964 11.8 2005 17.6 2001 46.4 1982 18.5 1979 0.1 1985 12.9 1996 75.5 1996 18.3 2010 19.5 1969 13.2 1985 6.9 1978 1.6 1995 0.1 1973 0.0 2006 0.0 2007 0.3 1972 3.2 1973 11.2 1971 16.9 1964 45.7 1965 18.1 1976 0.1 1977 12.5 2010 73.1 1962 16.2 1977 19.4 1996 13.0 1965 6.6 1989 1.4 1980 0.1 1971 0.0 2005 0.0 2006 0.2 1964 3.1 1981 10.3 2010 16.5 1995 45.6 1968 17.8 1968 0.1 1974 12.4 1971 69.7 1965 16.2 1966 18.6 1981 12.7 1995 6.6 1986 1.4 1975 0.1 1969 0.0 2004 0.0 2005 0.1 2012 2.7 1988 10.2 1973 15.4 1963 45.4 1991 17.1 1965 0.1 1973 11.8 2005 69.1 1968 15.9 2013 17.0 1978 12.6 2006 6.0 1977 1.3 2010 0.1 1961 0.0 2003 0.0 2004 0.1 2010 2.4 1987 9.3 1969 15.1 1969 44.9 1996 17.0 1987 0.1 1972 10.1 1983 68.3 1981 15.8 1965 15.5 1985 11.4 1964 5.9 1975 1.3 1997 0.0 2012 0.0 2002 0.0 2003 0.1 2007 2.3 1980 8.4 1967 14.9 1996 42.6 2009 16.9 1984 0.1 1971 10.0 1969 68.1 1970 15.6 1991 15.3 2003 10.4 1973 5.7 1996 1.3 1974 0.0 2011 0.0 2001 0.0 2002 0.1 2005 2.2 2010 8.4 1962 14.9 1978 42.6 1987 16.5 1975 0.1 1969 10.0 1962 66.8 1986 15.1 2009 14.8 2010 10.3 2010 5.4 2008 1.2 2005 0.0 2010 0.0 2000 0.0 2001 0.1 2003 2.2 2008 8.3 1975 14.8 2009 41.3 1970 16.4 1985 0.1 1967 9.9 1975 66.1 1987 15.0 2001 14.7 1970 9.6 2001 5.2 1983 1.2 1981 0.0 2009 0.0 1999 0.0 2000 0.1 1996 1.8 1974 8.2 1972 14.8 2008 41.3 1969 16.1 2006 0.1 1965 9.9 1972 65.3 2001 15.0 1992 14.6 1987 9.6 1996 4.9 1988 1.2 1977 0.0 2008 0.0 1998 0.0 1999 0.1 1995 1.6 2002 7.1 1980 14.1 1992 41.2 1977 16.0 1973 0.1 1964 9.4 1980 63.5 1976 14.6 1986 14.5 1994 9.6 1979 4.7 2012 1.1 1962 0.0 2007 0.0 1997 0.0 1998 0.1 1993 1.6 1970 7.1 1977 13.8 1968 40.7 2013 15.9 1986 0.1 1961 8.7 1967 63.4 1978 14.6 1982 14.3 2013 9.6 1971 4.6 1966 1.0 1973 0.0 2006 0.0 1996 0.0 1997 0.1 1991 1.6 1962 7.0 1989 13.3 1982 40.3 2011 15.3 1971 0.0 2012 8.2 1979 63.0 1964 14.2 2011 14.1 2001 9.3 1980 4.5 2003 1.0 1968 0.0 2005 0.0 1995 0.0 1996 0.1 1988 1.4 1966 7.0 1979 12.9 2003 39.9 1981 14.3 2010 0.0 2010 8.1 1997 62.5 1973 13.4 1984 13.2 2012 9.2 1986 4.5 1981 0.9 2012 0.0 2004 0.0 1994 0.0 1995 0.1 1983 1.3 1975 6.6 1976 12.8 1967 39.6 1964 14.1 1980 0.0 2009 7.9 1964 61.3 1991 13.3 1964 12.9 1984 9.2 1975 4.5 1976 0.9 1987 0.0 2003 0.0 1993 0.0 1994 0.1 1977 1.3 1972 6.5 1961 12.7 1970 38.0 1983 14.0 1964 0.0 2008 7.6 1966 58.9 2003 12.8 1978 12.9 1965 8.2 1963 4.5 1973 0.9 1965 0.0 2002 0.0 1992 0.0 1993 0.1 1971 1.2 2012 6.4 1998 11.6 2005 37.8 2001 13.1 2001 0.0 2007 7.5 2003 56.7 1980 12.3 1968 12.7 2009 8.1 2005 4.4 1997 0.9 1961 0.0 2001 0.0 1991 0.0 1992 0.1 1963 1.1 1971 6.4 1983 11.2 2007 37.7 1962 12.7 1974 0.0 2006 7.5 1961 55.8 1995 12.2 1961 11.8 2008 8.1 1993 4.3 2000 0.8 1993 0.0 2000 0.0 1990 0.0 1991 0.0 2011 1.0 1994 6.1 1966 11.0 1973 37.6 1997 12.6 1978 0.0 2005 7.4 1998 55.0 1982 12.1 1981 11.8 1973 7.7 1974 4.3 1979 0.5 2011 0.0 1999 0.0 1989 0.0 1990 0.0 2009 1.0 1986 5.7 1995 10.9 1991 34.2 2004 12.5 1982 0.0 2004 7.2 1992 54.6 1984 11.4 1970 11.5 2004 7.2 2003 4.2 1995 0.5 2001 0.0 1998 0.0 1988 0.0 1989 0.0 2008 1.0 1961 5.7 1978 10.6 2012 34.0 1984 12.0 2003 0.0 2003 7.2 1977 52.1 1983 11.1 2003 11.2 2006 7.2 1968 4.0 1991 0.5 1991 0.0 1997 0.0 1987 0.0 1988 0.0 2006 0.9 1998 5.4 2001 10.1 1998 33.8 1966 11.8 2005 0.0 2002 7.1 1989 50.3 2009 10.9 1995 10.8 1964 7.1 1972 3.9 1998 0.4 2003 0.0 1996 0.0 1986 0.0 1987 0.0 2004 0.8 2007 5.3 2012 10.1 1990 33.7 1978 11.6 1990 0.0 2001 6.9 1976 50.1 2005 10.4 1967 10.6 1976 7.0 2011 3.9 1971 0.4 1994 0.0 1995 0.0 1985 0.0 1986 0.0 2002 0.8 1991 5.0 2007 9.7 1965 33.4 1992 11.6 1977 0.0 2000 6.7 2008 49.8 1971 10.3 1972 10.2 2005 6.9 1984 3.8 1999 0.4 1969 0.0 1994 0.0 1984 0.0 1985 0.0 2001 0.8 1982 5.0 1991 9.6 1999 31.9 2006 11.3 2008 0.0 1999 6.5 2012 49.6 1966 10.2 1973 9.9 1962 6.3 1982 3.8 1982 0.4 1963 0.0 1993 0.0 1983 0.0 1984 0.0 2000 0.8 1979 4.6 1968 9.3 1984 31.8 1980 11.3 1989 0.0 1998 6.4 1995 49.0 1993 10.0 2000 9.3 1982 6.0 1988 3.7 1974 0.3 2002 0.0 1992 0.0 1982 0.0 1983 0.0 1999 0.7 1984 4.5 2008 9.2 1980 31.4 2003 11.1 1988 0.0 1997 6.4 1981 48.3 2012 9.9 2004 9.2 1975 5.9 1966 3.6 2002 0.3 1990 0.0 1990 0.0 1981 0.0 1982 0.0 1998 0.6 1999 4.5 1982 8.7 2000 31.0 1994 10.8 1966 0.0 1996 6.1 1978 48.2 2008 9.3 1976 9.1 1971 5.8 2009 3.4 1980 0.3 1989 0.0 1988 0.0 1980 0.0 1981 0.0 1997 0.6 1995 4.4 1964 8.6 1975 30.2 2002 10.4 1993 0.0 1995 5.9 2007 48.2 1975 9.0 2012 8.5 1988 5.7 2008 3.3 2006 0.3 1976 0.0 1987 0.0 1979 0.0 1980 0.0 1994 0.6 1965 4.3 2004 8.3 2004 30.2 1971 10.2 1963 0.0 1994 5.8 1991 47.7 1992 9.0 2006 8.3 1967 5.6 2000 3.3 1965 0.3 1972 0.0 1986 0.0 1978 0.0 1979 0.0 1992 0.5 1985 3.8 1990 8.1 1993 28.5 1976 10.0 2000 0.0 1993 5.7 1987 47.6 1967 9.0 1998 7.9 1999 5.5 2004 3.0 2001 0.3 1966 0.0 1984 0.0 1977 0.0 1978 0.0 1990 0.4 1978 3.6 2006 8.0 1987 27.8 1973 9.5 1983 0.0 1992 5.4 2001 46.7 1997 9.0 1996 7.9 1966 5.5 1978 3.0 1985 0.2 2009 0.0 1983 0.0 1976 0.0 1977 0.0 1989 0.3 2011 3.6 2003 7.9 1979 27.7 2012 9.0 2012 0.0 1990 5.3 1982 46.4 1961 8.4 1971 7.6 2007 4.6 2002 2.9 1994 0.2 2008 0.0 1982 0.0 1975 0.0 1976 0.0 1985 0.3 2000 3.3 1981 7.7 1983 27.0 1993 8.6 1991 0.0 1988 5.2 1974 45.6 1977 8.4 1962 7.5 1992 4.5 1977 2.8 1967 0.2 2007 0.0 1981 0.0 1974 0.0 1975 0.0 1984 0.3 1990 3.3 1970 7.5 1997 26.5 2008 8.6 1981 0.0 1987 5.0 1970 45.0 2006 8.3 2002 6.9 1989 4.5 1961 2.7 2010 0.2 2006 0.0 1980 0.0 1973 0.0 1974 0.0 1982 0.3 1967 3.2 1992 7.3 1994 25.8 1967 8.4 2002 0.0 1986 4.7 1968 43.1 1988 8.3 1994 6.9 1974 4.4 1989 2.5 1964 0.2 2004 0.0 1979 0.0 1972 0.0 1973 0.0 1981 0.2 2009 3.2 1974 7.2 1986 25.6 2000 8.4 1997 0.0 1984 4.4 2004 40.9 1972 7.9 1969 6.5 1977 4.2 1983 2.4 2005 0.2 1998 0.0 1978 0.0 1971 0.0 1972 0.0 1980 0.2 1996 3.1 1987 7.1 1966 24.5 1999 8.4 1972 0.0 1983 4.2 1990 40.7 2004 6.5 1999 6.4 1993 4.1 1990 2.3 1962 0.2 1992 0.0 1976 0.0 1970 0.0 1971 0.0 1978 0.2 1976 2.8 1963 6.8 1985 23.5 1974 7.9 2011 0.0 1982 3.8 1986 38.8 1998 6.5 1993 6.4 1972 4.0 1991 2.1 1992 0.2 1988 0.0 1974 0.0 1969 0.0 1970 0.0 1976 0.2 1969 2.5 1997 6.4 1989 23.1 2005 7.6 1998 0.0 1981 3.7 2006 37.8 1989 5.8 1989 5.9 2000 3.5 2012 1.5 1963 0.2 1985 0.0 1972 0.0 1968 0.0 1969 0.0 1973 0.1 2004 1.9 2000 5.8 1972 21.8 1988 7.4 1967 0.0 1980 3.0 1963 37.2 1994 5.5 1974 5.3 1980 3.5 2007 1.4 1993 0.2 1983 0.0 1970 0.0 1967 0.0 1968 0.0 1970 0.1 1989 1.9 1999 5.5 2011 21.6 1995 6.9 2009 0.0 1979 2.6 1999 36.9 2000 5.2 1988 4.7 1998 3.5 1998 1.0 1972 0.2 1978 0.0 1968 0.0 1966 0.0 1967 0.0 1968 0.1 1977 1.6 1986 5.0 2006 21.3 1972 6.7 1999 0.0 1978 2.2 2002 33.8 2007 4.6 2007 4.2 2002 3.0 1981 0.9 2004 0.1 2000 0.0 1967 0.0 1965 0.0 1966 0.0 1967 0.1 1968 1.3 1984 4.9 2002 21.2 1998 6.6 2004 0.0 1976 2.2 2000 33.4 1999 4.6 2005 4.1 1997 2.8 1999 0.8 2009 0.1 1999 0.0 1966 0.0 1964 0.0 1965 0.0 1966 0.1 1963 1.0 2011 4.6 1971 17.2 2007 6.1 1961 0.0 1970 2.1 1984 32.8 1974 4.2 1983 3.4 1995 2.8 1967 0.8 2007 0.1 1986 0.0 1965 0.0 1963 0.0 1963 0.0 1965 0.0 2006 0.9 1994 4.0 1977 15.4 1975 5.0 1994 0.0 1968 2.0 1994 31.7 2011 3.8 1975 2.9 2011 2.7 1997 0.7 1961 0.1 1970 0.0 1964 0.0 1962 0.0 1962 0.0 1962 0.0 2005 0.6 2009 2.4 1974 14.6 1989 4.5 2007 0.0 1966 1.3 2011 31.3 1990 3.6 1990 1.9 1990 1.7 1994 0.5 1987 0.1 1964 0.0 1963 0.0 1961 0.0 1961 0.0 1961 0.0 2001 0.5 2002 1.9 1988 11.9 1990 3.9 1992 0.0 1963 0.9 2009 28.1 2002 3.5 2008 1.1 1961 1.5 1992 0.4 2011