Scotland 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 26.0 1979 23.9 1963 21.1 1969 12.7 1970 7.3 1979 0.7 1991 0.1 2000 0.3 1999 2.0 1986 6.9 1992 18.1 1969 23.9 2010 61.9 1963 32.7 2013 0.8 2012 20.8 1993 104.4 1979 24.0 1963 23.6 1968 20.2 2013 12.4 1983 5.5 1996 0.7 1975 0.1 1973 0.3 1964 1.7 1972 6.1 1993 17.8 1985 23.4 1981 61.0 2010 32.7 1979 0.8 1964 20.0 1985 103.1 2010 22.9 1984 23.0 1986 19.2 1962 12.4 1966 5.4 1995 0.6 2012 0.1 1965 0.2 2016 1.6 1993 5.9 1981 15.9 1965 21.5 1976 60.5 1979 32.2 1969 0.7 1991 18.7 1969 100.1 1969 22.2 1985 22.6 1969 19.0 1979 11.9 1986 4.8 1982 0.6 1998 0.0 2018 0.2 2012 1.5 1974 5.5 2012 15.0 1996 20.6 1961 54.7 1977 30.9 1970 0.7 1975 18.0 1965 89.8 1981 20.4 1978 22.1 1979 18.1 1970 10.4 2013 4.6 1968 0.5 1989 0.0 2017 0.2 1986 1.1 1975 5.5 2003 13.2 2010 20.5 2009 51.4 1986 29.2 1962 0.6 1998 16.5 1973 89.6 1968 19.8 2010 20.7 2010 17.8 1987 10.4 1981 4.1 2012 0.4 2009 0.0 2016 0.2 1977 1.0 1979 5.1 1973 13.0 1993 18.4 1995 51.1 1968 28.6 1995 0.5 2009 16.3 2010 89.5 1965 19.5 1987 20.7 1970 17.4 1995 10.0 1968 4.0 2019 0.4 1985 0.0 2015 0.2 1973 0.9 2007 4.9 2002 12.0 1971 17.2 1996 50.0 1969 27.3 1975 0.5 1999 16.0 1971 89.1 1985 18.4 1991 19.3 1983 16.0 1975 9.8 1969 3.9 2010 0.4 1964 0.0 2014 0.2 1966 0.9 1991 4.1 1997 11.6 1966 17.1 1993 49.9 1991 25.8 1968 0.5 1989 15.7 1996 86.1 1963 18.4 1977 18.8 1978 15.9 2001 9.6 1989 3.8 1984 0.4 1962 0.0 2013 0.1 2018 0.6 2012 4.0 2008 11.4 2016 16.8 2001 49.9 1970 24.9 2001 0.5 1977 14.6 1966 84.2 1970 18.3 1965 18.3 1996 15.7 2006 9.6 1978 3.8 1977 0.3 2015 0.0 2012 0.1 2014 0.6 2010 4.0 1987 11.1 1973 16.6 1968 49.2 1965 23.7 2006 0.5 1962 14.5 1992 82.9 1986 18.1 1986 18.2 1991 15.7 1965 9.1 1973 3.6 1994 0.3 2008 0.0 2011 0.1 2010 0.6 1997 3.9 1980 10.9 1977 16.6 1964 48.1 2011 23.5 1984 0.4 2000 14.0 1972 82.0 1966 17.3 2001 17.2 2018 15.0 1985 9.0 1998 3.5 1975 0.3 2001 0.0 2010 0.1 2007 0.6 1995 3.7 2018 10.8 1962 15.9 1989 47.9 1966 22.7 1965 0.4 1986 13.5 2012 81.6 1995 17.3 1997 17.0 2013 14.7 2018 9.0 1974 3.3 1997 0.3 2000 0.0 2009 0.1 2004 0.6 1971 3.4 1971 10.5 1972 15.9 1965 47.1 1982 22.4 1987 0.4 1985 13.1 2016 81.4 2001 17.1 1980 16.3 2001 14.6 1980 8.8 2012 3.1 1967 0.3 1997 0.0 2008 0.1 1994 0.5 1989 3.3 1998 9.5 1998 15.6 1969 47.0 1978 22.4 1986 0.4 1978 13.1 1980 80.8 1996 16.9 1995 16.2 1981 12.5 1984 8.7 1962 2.8 2005 0.3 1978 0.0 2007 0.1 1982 0.5 1987 3.0 1966 9.4 2013 15.2 2008 45.9 1994 22.2 2010 0.4 1973 12.9 1998 79.2 1962 16.9 1981 15.7 1994 12.4 2010 8.6 2016 2.7 1980 0.3 1961 0.0 2006 0.1 1981 0.5 1983 2.9 1964 9.2 2005 15.1 1999 45.7 2018 21.9 1981 0.3 2015 12.7 1962 78.8 2013 16.9 1966 15.5 1987 11.9 1976 8.0 1977 2.4 2015 0.2 2017 0.0 2005 0.1 1974 0.5 1977 2.7 1988 9.2 1980 15.1 1982 45.6 2001 21.8 1966 0.3 2008 11.9 2008 78.5 1987 16.4 2011 15.4 2016 11.8 1988 7.9 2000 2.3 2001 0.2 2011 0.0 2004 0.1 1969 0.5 1964 2.7 1983 9.0 1979 14.6 2017 45.5 1987 21.5 1996 0.3 2001 11.7 1977 78.0 1978 16.1 2019 15.1 2004 11.6 1996 7.8 1975 2.1 2013 0.2 2007 0.0 2003 0.1 1967 0.4 1984 2.6 2010 8.5 1961 14.0 1962 44.7 1996 21.3 1985 0.3 1997 11.0 1981 76.7 1973 15.9 1961 15.1 1966 11.4 1971 7.5 2008 2.1 1981 0.2 2005 0.0 2002 0.1 1965 0.3 2018 2.4 1994 8.4 1968 13.8 1992 44.6 1985 21.3 1980 0.3 1982 10.9 1979 72.7 1980 14.9 2009 14.9 2003 11.4 1964 7.2 1984 1.9 1993 0.2 1999 0.0 2001 0.1 1963 0.3 2013 2.3 1974 8.4 1963 13.8 1963 44.0 1981 21.3 1974 0.3 1981 10.5 2013 72.4 1976 14.7 2003 14.8 1985 11.2 2008 7.0 1967 1.8 1973 0.2 1996 0.0 1999 0.1 1962 0.3 2003 2.1 1985 7.8 2008 13.6 2012 43.3 2013 21.2 2018 0.3 1980 10.3 1964 71.3 1977 14.4 1968 14.8 1977 11.2 1968 6.9 1994 1.8 1971 0.2 1987 0.0 1998 0.0 2017 0.3 1990 2.1 1967 7.7 2017 13.4 1973 43.2 1962 21.0 1983 0.3 1969 10.2 1983 70.5 1984 14.2 1982 14.4 1973 10.6 1972 6.7 2001 1.7 2006 0.2 1986 0.0 1997 0.0 2015 0.3 1988 1.9 1965 7.5 1992 13.3 1990 43.1 1983 21.0 1973 0.3 1966 9.9 1988 69.5 1975 14.1 2015 14.2 1965 10.5 1974 6.6 1988 1.7 1974 0.2 1983 0.0 1996 0.0 2013 0.3 1982 1.8 1975 7.4 2012 13.3 1966 42.8 2009 19.9 1989 0.3 1965 9.9 1975 68.7 2018 13.9 2018 13.0 2006 10.3 1986 6.4 1979 1.6 1987 0.2 1981 0.0 1995 0.0 2011 0.3 1969 1.8 1972 7.3 1976 13.1 1967 42.5 1984 19.5 2008 0.3 1961 9.8 2005 68.3 2008 13.7 1970 12.7 2009 10.2 1973 6.3 2006 1.6 1961 0.2 1980 0.0 1994 0.0 2009 0.2 2008 1.8 1962 7.3 1967 12.5 2003 42.3 1997 19.4 1978 0.2 2017 9.5 2003 68.1 1991 13.3 2017 12.4 1999 10.0 2011 6.1 1990 1.5 1985 0.2 1977 0.0 1993 0.0 2008 0.2 2004 1.6 2016 7.2 1991 12.5 1979 39.7 1980 19.2 2016 0.2 2016 9.5 1987 67.8 1993 13.2 1994 12.2 2015 9.8 2016 6.1 1971 1.5 1978 0.2 1973 0.0 1992 0.0 2006 0.2 2002 1.5 2015 7.0 1988 12.4 1978 39.6 2004 19.2 1988 0.2 2014 9.5 1974 67.3 1983 13.0 1988 12.1 1962 9.5 1993 6.0 2015 1.4 2007 0.2 1969 0.0 1991 0.0 2005 0.2 1998 1.2 2000 7.0 1983 12.2 2007 38.6 2003 19.2 1971 0.2 2011 9.5 1967 66.1 1982 13.0 1976 11.9 2005 9.4 1982 5.9 2010 1.4 1966 0.1 2018 0.0 1990 0.0 2003 0.2 1996 1.2 1982 6.9 1975 12.0 2000 37.8 2015 19.0 1982 0.2 2007 9.2 1963 65.4 2016 12.7 2013 11.9 1976 9.4 1981 5.8 1965 1.3 2017 0.1 2016 0.0 1989 0.0 2002 0.2 1981 1.1 2009 6.9 1964 11.9 2011 36.9 1995 18.9 1998 0.2 2005 9.1 1961 65.3 2009 12.7 1992 11.7 1984 9.2 2015 5.7 1995 1.3 1969 0.1 2013 0.0 1988 0.0 2001 0.2 1976 1.1 2007 6.6 1990 11.5 2014 35.8 1973 18.2 1994 0.2 2004 9.0 1968 64.4 2012 12.6 2016 11.6 1975 9.0 1998 5.5 1999 1.3 1965 0.1 2010 0.0 1987 0.0 2000 0.2 1973 1.0 1976 6.6 1982 11.4 1987 35.7 1988 18.1 1977 0.2 1996 8.9 1991 63.9 2003 12.6 1998 11.5 1964 9.0 1989 5.5 1963 1.3 1962 0.1 2006 0.0 1986 0.0 1998 0.2 1970 1.0 1970 6.6 1970 10.9 1970 34.9 1964 17.7 2015 0.2 1987 8.7 2017 63.6 1964 12.3 1975 11.4 1988 8.6 2003 5.3 2018 1.2 2018 0.1 2004 0.0 1985 0.0 1997 0.2 1968 0.9 2017 6.4 1978 10.8 1980 34.7 2002 17.7 1967 0.2 1983 8.6 1986 62.2 1972 12.0 2004 11.3 1972 8.5 1963 5.1 1976 1.2 2011 0.1 1995 0.0 1984 0.0 1996 0.2 1965 0.9 2014 6.3 1989 10.7 1998 33.7 2016 17.3 1976 0.2 1974 8.5 2018 61.4 1961 12.0 1972 10.8 1995 8.4 2004 4.8 2002 1.2 1991 0.1 1993 0.0 1983 0.0 1995 0.2 1963 0.9 2004 6.0 2000 10.5 1986 33.5 2008 17.1 2012 0.2 1972 8.5 1976 60.6 1994 11.4 2008 10.1 1980 8.3 2005 4.8 1985 1.2 1989 0.1 1988 0.0 1982 0.0 1993 0.1 2017 0.9 1999 5.8 1986 10.4 1972 33.4 2000 15.9 2000 0.2 1971 8.3 2002 60.1 1967 11.2 1967 10.0 2008 8.3 1978 4.8 1982 1.2 1963 0.1 1984 0.0 1981 0.0 1992 0.1 2016 0.9 1991 5.6 2001 10.3 1985 33.4 1999 15.2 2005 0.2 1968 8.1 1982 59.8 2017 11.0 1973 9.9 2017 8.2 2017 4.6 1991 1.0 2014 0.1 1982 0.0 1980 0.0 1991 0.1 2015 0.9 1984 5.6 1974 9.9 2004 33.2 2006 15.2 1963 0.2 1967 7.9 1970 59.8 1971 10.8 1969 9.5 2002 8.0 2007 4.6 1961 1.0 2009 0.1 1979 0.0 1979 0.0 1990 0.1 2011 0.9 1979 5.5 1995 9.8 2005 32.9 1967 14.8 2019 0.1 2018 7.7 1990 59.5 1998 10.6 1962 9.5 2000 8.0 1966 4.5 2019 1.0 2002 0.1 1976 0.0 1978 0.0 1989 0.1 2009 0.8 2013 5.4 2004 9.3 1991 32.8 1976 14.7 1964 0.1 2013 7.3 1989 59.1 1992 10.5 2006 9.5 1982 7.9 1999 4.4 1997 1.0 2000 0.1 1974 0.0 1977 0.0 1988 0.1 2006 0.8 1990 5.1 1999 9.1 2002 32.3 2019 14.3 1972 0.1 2010 7.2 2000 58.1 1999 10.4 2012 9.3 1989 7.7 1994 4.3 1996 1.0 1992 0.1 1972 0.0 1976 0.0 1987 0.1 2005 0.7 1995 5.0 1987 9.1 1994 31.4 2012 13.8 1999 0.1 2006 6.7 1997 57.5 2006 10.3 1993 9.2 1971 7.7 1983 4.1 2005 0.9 2008 0.1 1971 0.0 1975 0.0 1985 0.1 2001 0.7 1986 4.9 1981 8.1 1997 30.1 1993 13.5 1993 0.1 1995 6.7 1995 56.0 1989 10.2 1999 9.1 2012 7.6 2002 4.0 1980 0.9 2004 0.1 1970 0.0 1974 0.0 1984 0.1 2000 0.6 1963 4.4 2018 7.9 1983 30.1 1992 13.3 2002 0.1 1994 6.7 1978 55.8 1988 9.9 1971 8.6 1974 7.6 1967 3.6 2017 0.9 1983 0.1 1968 0.0 1972 0.0 1983 0.1 1999 0.5 2011 4.2 2007 7.9 1975 29.9 1971 13.1 2017 0.1 1993 6.5 2004 55.3 2015 9.6 1964 8.4 2019 7.5 2009 3.4 2003 0.8 2016 0.1 1967 0.0 1971 0.0 1980 0.1 1994 0.5 1996 4.1 2009 7.8 2018 29.8 1974 12.6 1991 0.1 1988 6.2 2007 54.6 2004 8.8 2000 8.4 1967 7.0 2000 3.3 1992 0.8 1998 0.1 1966 0.0 1970 0.0 1979 0.1 1992 0.5 1968 3.8 2015 7.8 1977 29.7 1975 12.5 2003 0.1 1984 6.1 1999 54.4 2005 8.6 1983 8.1 2007 6.8 1991 3.2 1964 0.8 1988 0.1 1965 0.0 1969 0.0 1978 0.1 1980 0.5 1961 3.6 2003 7.5 1984 29.6 1990 12.4 2011 0.1 1979 5.8 2001 53.8 2000 8.5 2002 8.1 1992 6.4 2019 3.0 2009 0.7 1990 0.0 2014 0.0 1968 0.0 1976 0.1 1978 0.4 2006 3.6 1984 7.0 2006 29.3 2005 12.0 1997 0.1 1976 5.4 2015 53.1 1974 8.1 2014 7.8 2011 6.3 1977 3.0 1987 0.7 1972 0.0 2003 0.0 1967 0.0 1975 0.1 1967 0.4 2005 3.2 2002 5.8 1974 28.7 1972 11.9 2007 0.1 1970 5.3 2009 52.2 1997 8.0 1996 7.8 1997 5.6 2014 3.0 1972 0.5 2003 0.0 2002 0.0 1966 0.0 1972 0.1 1966 0.4 1989 2.9 2014 5.7 2013 28.0 2017 11.5 2009 0.1 1963 4.9 1984 51.2 2011 7.8 1974 6.6 1990 5.6 1992 2.4 2014 0.4 1999 0.0 1994 0.0 1964 0.0 1971 0.1 1962 0.3 1978 2.8 2006 5.6 2015 24.6 1998 10.9 2004 0.0 2003 4.3 1994 48.6 2002 7.5 2005 6.2 1961 4.3 1997 2.4 2007 0.3 1976 0.0 1992 0.0 1963 0.0 1970 0.1 1961 0.3 1977 2.0 1997 5.4 1971 22.5 2007 10.5 1990 0.0 2002 3.8 2014 46.0 2007 7.4 2007 6.0 1993 4.2 2012 2.2 1993 0.2 1986 0.0 1990 0.0 1962 0.0 1968 0.0 2014 0.3 1969 1.9 2011 4.9 2016 19.7 2014 10.0 1992 0.0 1992 3.2 2006 45.2 1990 7.1 1990 5.9 2014 3.7 1990 1.6 2004 0.1 1970 0.0 1963 0.0 1961 0.0 1961 0.0 1985 0.1 2001 1.9 1994 2.2 1988 14.6 1989 9.4 1961 0.0 1990 2.4 2011 38.5 2014 3.2 1989 3.8 1998 3.2 1961 1.1 2011 0.1 1964 9.0 2014