Scotland_W 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 24.9 1979 24.0 1963 19.4 1969 11.0 1983 6.1 1979 0.7 1991 0.1 1971 0.3 1964 2.1 1986 6.9 1992 16.3 1985 23.8 2010 61.2 1963 29.2 1969 0.7 1991 20.0 1993 98.2 2010 24.1 1963 22.4 1986 18.2 2013 10.6 1970 4.8 1996 0.6 1975 0.0 2018 0.1 2014 1.6 1974 6.6 1993 15.8 1969 21.0 1981 58.1 2010 28.3 1979 0.6 1975 17.4 1985 93.4 1979 23.3 1985 21.6 1968 17.7 1962 10.1 1986 4.3 1995 0.4 1989 0.0 2017 0.1 2012 1.4 1972 5.5 1981 14.2 1965 19.4 2009 57.4 1979 28.0 2013 0.5 1989 16.1 1969 89.4 1969 19.3 1987 20.4 1979 16.6 1979 8.9 1966 3.8 1975 0.3 1998 0.0 2016 0.1 1999 1.2 1993 4.7 2003 12.8 1996 19.1 1961 46.7 1977 26.2 1970 0.5 1964 15.8 2010 80.8 1963 19.1 1984 20.3 2010 15.5 1970 8.6 1969 3.5 1984 0.3 1985 0.0 2015 0.1 1986 0.9 1979 4.7 2002 12.3 2010 18.7 1976 46.4 1986 25.2 1962 0.4 1962 15.7 1965 79.5 1985 18.4 2010 20.2 1969 14.9 1987 8.6 1968 3.5 1982 0.3 1962 0.0 2014 0.1 1982 0.9 1975 4.3 1973 12.2 1993 15.9 1995 45.5 1965 24.3 1975 0.3 2012 13.8 1971 77.5 1965 17.2 1977 18.7 1970 14.7 2001 8.4 2013 3.3 2012 0.2 2012 0.0 2013 0.1 1977 0.8 2007 4.1 2012 11.1 2016 15.6 2008 45.1 1968 22.6 1995 0.3 2009 13.7 1973 77.4 1968 17.1 1978 17.9 1991 14.3 1975 7.8 1978 3.3 2010 0.2 2009 0.0 2012 0.1 1969 0.7 2010 3.7 2018 10.4 1971 15.6 2001 44.7 1991 22.1 2001 0.3 1998 13.3 1996 74.8 1981 16.3 1965 17.8 1996 13.9 1995 7.7 1989 3.3 1968 0.2 1978 0.0 2011 0.1 1966 0.6 1995 3.5 1997 10.0 1977 15.0 1968 44.5 2011 21.7 1968 0.3 1985 12.9 1972 73.4 1986 16.2 1980 17.0 1978 13.6 2006 7.7 1981 3.2 1977 0.2 1973 0.0 2010 0.1 1962 0.5 1991 3.4 1980 9.9 1966 14.6 1996 44.5 1970 19.9 1984 0.2 1999 12.7 1992 71.6 2001 16.0 1997 16.9 1983 13.0 2018 7.6 1998 2.8 2019 0.2 1964 0.0 2009 0.0 2018 0.5 1971 3.2 2008 9.6 1972 14.5 1969 44.4 1969 19.8 2010 0.2 1986 12.5 1966 71.4 1996 15.9 1986 16.1 2013 12.9 1965 7.2 2012 2.6 1997 0.1 2018 0.0 2008 0.0 2017 0.4 1987 2.9 1983 9.3 1973 14.4 1964 43.0 1985 19.4 1986 0.2 1978 11.7 1980 71.4 1970 15.5 2011 15.2 1981 12.8 1980 7.1 2016 2.6 1967 0.1 2015 0.0 2007 0.0 2016 0.4 1983 2.8 2010 9.1 2005 14.0 1989 42.1 1987 19.3 2006 0.2 1977 11.5 2016 69.9 1987 15.5 1991 14.8 1965 12.7 1985 7.1 1974 2.4 2005 0.1 2011 0.0 2006 0.0 2015 0.4 1977 2.8 1971 8.9 1962 13.6 1993 41.8 1982 19.0 1996 0.2 1974 10.5 1977 68.4 1962 15.4 1966 14.7 1987 11.7 2010 7.0 2000 2.3 1994 0.1 2008 0.0 2005 0.0 2013 0.4 1964 2.7 1987 8.5 2013 13.1 1962 40.3 2009 18.4 1965 0.2 1973 10.5 1962 67.0 1995 14.9 1995 14.6 2018 10.5 1976 6.9 1973 1.7 2015 0.1 2001 0.0 2004 0.0 2011 0.3 2018 2.6 1998 8.2 1980 12.9 1982 40.2 1996 18.3 1987 0.2 1971 9.8 1983 66.9 2013 14.7 2001 14.1 2001 10.3 1996 6.5 1962 1.7 1980 0.1 2000 0.0 2003 0.0 2010 0.3 2012 2.6 1988 7.4 2017 12.8 2017 39.7 2001 17.8 1980 0.2 1969 9.6 2012 66.4 1978 13.7 1961 14.1 1994 10.2 1964 6.3 2008 1.6 2001 0.1 1999 0.0 2002 0.0 2009 0.3 1997 2.6 1966 7.3 1990 12.7 1963 39.5 1978 17.6 1973 0.2 1966 9.6 1998 64.9 1966 13.6 2019 13.8 2016 10.1 1971 6.3 1984 1.6 1981 0.1 1997 0.0 2001 0.0 2008 0.3 1988 2.4 1974 7.2 1963 12.1 1999 39.4 1966 17.5 1974 0.2 1961 9.5 2008 63.5 1973 13.6 2003 13.8 2004 10.0 1984 6.3 1975 1.6 1973 0.1 1996 0.0 2000 0.0 2007 0.2 1989 2.0 1964 7.1 1979 12.1 1978 38.7 2018 17.1 2018 0.1 2018 9.4 2005 63.1 1980 13.4 1981 13.7 1985 9.7 1968 6.1 1994 1.5 1993 0.1 1988 0.0 1999 0.0 2006 0.2 1982 1.9 1972 6.9 1998 12.1 1965 38.3 1981 17.0 1983 0.1 2017 9.3 1974 59.1 1991 12.8 1982 12.8 2003 9.1 1986 6.1 1977 1.4 2013 0.1 1987 0.0 1998 0.0 2005 0.1 2017 1.6 1962 6.9 1968 11.8 1967 38.2 2013 16.7 1985 0.1 2016 9.2 1988 59.1 1984 12.3 2009 12.4 2009 9.1 1973 5.8 2001 1.4 1987 0.1 1986 0.0 1997 0.0 2004 0.1 2016 1.3 1994 6.5 1983 11.7 1992 38.2 1962 16.5 1981 0.1 2015 8.8 2013 58.3 1976 12.1 1992 12.0 1973 9.0 1988 5.6 1979 1.4 1974 0.1 1984 0.0 1996 0.0 2003 0.1 2015 1.3 1965 6.5 1967 11.4 1990 37.4 1994 16.4 1971 0.1 2014 8.6 1981 58.1 1977 11.9 2017 11.9 1966 9.0 1974 5.0 1971 1.3 1991 0.1 1983 0.0 1995 0.0 2002 0.1 2013 1.2 1975 6.4 1991 11.2 1979 36.5 1997 16.3 1989 0.1 2013 8.5 1979 58.1 1975 11.9 2015 11.3 2006 8.8 2011 5.0 1967 1.3 1971 0.1 1982 0.0 1994 0.0 2001 0.1 2011 1.2 1967 6.3 1988 11.1 2012 36.0 1983 15.4 1982 0.1 2011 8.3 1964 56.9 2008 11.8 1968 11.2 2005 8.7 2008 4.9 2015 1.3 1969 0.1 1981 0.0 1993 0.0 2000 0.1 2009 1.1 1985 6.2 2008 11.1 1973 35.0 1984 15.3 2008 0.1 2010 8.2 2017 56.7 1993 11.3 2018 11.1 2015 8.5 1972 4.8 2010 1.1 1985 0.1 1980 0.0 1992 0.0 1998 0.1 2008 1.0 1999 6.1 1975 11.0 2000 35.0 1980 15.2 1966 0.1 2008 8.2 1975 55.9 2009 11.3 1998 10.8 1977 8.4 2005 4.8 2006 1.1 1965 0.1 1979 0.0 1991 0.0 1997 0.1 2005 0.9 2000 6.0 1976 10.8 2003 34.6 2004 15.1 2016 0.1 2007 7.8 1990 55.9 1982 11.2 1970 10.2 1984 8.2 2004 4.7 1988 1.1 1962 0.1 1977 0.0 1990 0.0 1996 0.1 2003 0.8 2007 6.0 1961 10.2 1987 34.3 2003 14.7 1978 0.1 2004 7.7 1967 55.7 1983 10.9 2013 10.1 1964 8.0 1982 4.5 1999 1.0 1989 0.1 1974 0.0 1989 0.0 1995 0.1 2002 0.8 1982 5.8 1992 9.8 1980 32.2 2015 14.5 1988 0.1 2001 7.6 1963 55.0 2003 10.1 1972 9.6 1962 8.0 1963 4.5 1995 0.8 2016 0.1 1972 0.0 1988 0.0 1994 0.1 2001 0.7 2017 5.8 1964 9.8 1970 31.2 1964 14.4 2015 0.1 2000 7.5 1991 54.9 2018 10.0 2004 9.4 1999 7.8 2015 4.4 1990 0.8 2006 0.1 1971 0.0 1987 0.0 1993 0.1 1996 0.7 2015 5.7 1989 9.8 1966 30.2 1995 14.4 1976 0.1 1997 7.3 1987 54.4 1964 10.0 1967 9.4 1988 7.6 2003 4.4 1965 0.8 1988 0.1 1969 0.0 1986 0.0 1992 0.1 1994 0.6 2014 5.6 1982 9.5 2005 30.1 2006 14.3 1998 0.1 1996 7.3 1986 52.2 2016 9.8 1994 9.1 1975 7.6 1989 3.9 1996 0.8 1978 0.1 1965 0.0 1985 0.0 1991 0.1 1990 0.6 2009 5.3 1974 9.2 2007 29.0 1988 14.1 1977 0.1 1995 7.2 1968 51.5 1971 9.8 1976 8.8 1972 7.5 1993 3.9 1982 0.8 1966 0.1 1961 0.0 1984 0.0 1990 0.1 1984 0.6 1991 5.1 2012 9.1 2014 28.8 1973 13.5 2012 0.1 1993 6.8 2018 50.9 1972 9.5 1962 8.7 2008 7.2 1981 3.8 2019 0.8 1963 0.0 2017 0.0 1983 0.0 1989 0.1 1981 0.6 1979 5.1 1978 8.6 1998 28.6 2002 13.3 1994 0.1 1988 6.8 1976 50.6 1967 9.4 1988 8.6 1976 7.1 2016 3.7 2002 0.7 2018 0.0 2016 0.0 1982 0.0 1988 0.1 1976 0.6 1976 5.0 2004 8.3 2004 28.4 2000 13.2 2005 0.1 1987 6.7 2003 50.3 2012 9.3 2006 8.0 2012 6.7 2002 3.7 1991 0.7 1983 0.0 2014 0.0 1981 0.0 1987 0.1 1973 0.5 1984 4.9 1970 8.2 1986 27.7 1967 13.1 1967 0.1 1984 6.6 1982 50.2 2005 9.2 1969 8.0 1995 6.7 1999 3.7 1976 0.7 1961 0.0 2013 0.0 1980 0.0 1985 0.1 1970 0.4 2011 4.8 2001 8.1 1985 26.3 2005 12.7 1964 0.1 1983 6.4 2002 50.0 1992 9.1 2000 8.0 1982 6.3 2009 3.5 1963 0.6 2017 0.0 2010 0.0 1979 0.0 1984 0.1 1969 0.4 2004 4.8 1999 7.8 2011 26.2 1999 12.6 2000 0.1 1982 6.3 1961 49.8 2017 9.0 1973 7.9 1967 6.3 2007 3.3 2018 0.6 2002 0.0 2007 0.0 1978 0.0 1983 0.1 1968 0.4 1996 4.8 1986 7.8 2002 26.0 2019 12.4 1963 0.1 1981 6.2 1989 49.0 1961 9.0 1971 7.5 2007 6.2 2017 3.3 1980 0.5 2011 0.0 2006 0.0 1977 0.0 1981 0.1 1967 0.4 1995 4.5 1995 7.8 1972 26.0 1971 11.4 1999 0.1 1980 6.0 2007 47.3 2004 8.7 2016 7.5 1980 6.2 1998 3.1 1961 0.5 2007 0.0 2005 0.0 1976 0.0 1980 0.1 1965 0.4 1986 4.3 2007 7.4 1975 25.9 1992 11.3 1972 0.1 1979 5.9 1999 47.3 1999 8.5 1975 7.4 1989 6.1 1978 3.0 2017 0.5 2004 0.0 2004 0.0 1975 0.0 1979 0.1 1963 0.4 1970 4.2 1987 7.2 1994 25.8 2016 11.0 2003 0.1 1976 5.5 1995 47.2 1998 8.4 1964 7.3 2019 5.8 1991 3.0 2003 0.5 2000 0.0 2003 0.0 1974 0.0 1978 0.0 2014 0.3 2016 3.6 2000 7.1 1997 25.7 1976 11.0 2002 0.1 1972 5.4 2004 46.6 1994 8.2 1999 7.2 2000 5.5 1966 2.9 1997 0.5 1998 0.0 2002 0.0 1973 0.0 1976 0.0 2006 0.3 2013 3.4 1984 6.8 1991 25.6 2008 10.8 1991 0.1 1970 5.4 1970 46.5 1989 7.8 2012 7.2 1971 5.4 1967 2.9 1985 0.5 1992 0.0 1995 0.0 1972 0.0 1975 0.0 2004 0.3 1990 3.1 1981 5.9 1984 24.0 1993 10.7 2019 0.1 1968 5.2 1978 45.9 2006 7.7 2008 7.0 1992 5.3 1983 2.5 1964 0.5 1972 0.0 1994 0.0 1970 0.0 1974 0.0 2000 0.3 1989 2.8 2018 5.8 1983 24.0 1974 10.6 1993 0.1 1967 5.1 1997 44.6 2000 7.1 1993 6.9 2017 5.1 2000 2.4 2005 0.4 2009 0.0 1993 0.0 1969 0.0 1973 0.0 1999 0.3 1968 2.8 2015 5.3 1977 23.8 1972 9.9 2017 0.1 1965 5.0 2001 44.5 2015 6.9 2005 6.8 1974 5.0 1994 2.3 1972 0.4 2003 0.0 1992 0.0 1968 0.0 1972 0.0 1998 0.3 1963 2.5 2009 5.0 2018 23.6 2012 9.8 2011 0.0 2006 4.6 2000 44.0 1988 6.6 2007 6.6 2002 4.8 1977 2.2 1992 0.4 1990 0.0 1990 0.0 1967 0.0 1971 0.0 1992 0.3 1961 2.2 2006 4.9 1971 23.1 1990 9.7 2004 0.0 2005 4.0 1984 43.5 1997 6.5 1996 5.9 1997 4.4 2014 1.9 2007 0.3 2008 0.0 1976 0.0 1966 0.0 1970 0.0 1985 0.2 1969 1.9 2003 3.6 2006 22.0 2017 9.4 1997 0.0 2003 3.6 2015 43.2 1974 6.3 2002 5.3 1993 4.1 2019 1.9 1987 0.3 1999 0.0 1970 0.0 1965 0.0 1968 0.0 1980 0.1 2006 1.6 2002 3.3 2015 21.5 1998 8.7 2007 0.0 2002 3.2 2009 40.1 2011 6.2 1983 5.1 2011 4.0 1997 1.7 2009 0.2 2014 0.0 1968 0.0 1964 0.0 1967 0.0 1978 0.1 2005 1.4 1997 3.2 1974 20.8 1975 8.4 2009 0.0 1994 2.4 2006 38.3 2002 6.2 1974 4.7 1990 3.8 1992 1.6 1993 0.2 1986 0.0 1967 0.0 1963 0.0 1965 0.0 1966 0.1 2001 1.2 2011 3.1 2016 17.6 2007 7.8 1990 0.0 1992 2.1 1994 38.0 2007 5.1 2014 4.0 1961 3.0 1990 1.5 2014 0.2 1976 0.0 1966 0.0 1962 0.0 1963 0.0 1962 0.1 1978 1.1 2014 3.0 2013 11.7 2014 6.4 1992 0.0 1990 1.7 2014 36.0 1990 4.3 1990 3.6 2014 2.9 2012 1.0 2004 0.1 1970 0.0 1963 0.0 1961 0.0 1961 0.0 1961 0.1 1977 0.8 1994 1.4 1988 10.9 1989 6.1 2014 0.0 1963 1.7 2011 25.7 2014 2.1 1989 3.1 1998 2.0 1961 0.5 2011 0.1 1964 5.8 1961