Scotland_E 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 27.4 1979 25.9 1963 22.9 2013 15.1 1970 7.3 1979 0.9 1975 0.1 2000 0.4 1964 2.6 1986 8.8 1992 20.5 1969 25.4 1981 69.0 1963 36.1 2013 1.1 1964 25.2 1993 113.6 1979 25.7 1963 25.1 1968 22.8 1969 13.3 1966 6.0 1995 0.7 1991 0.1 1973 0.3 1999 2.4 1972 7.9 1981 19.5 1985 24.6 2010 65.2 1979 35.7 1969 0.9 1975 22.1 1985 112.1 1969 24.7 1984 24.3 1986 20.3 1979 13.0 1983 5.7 1996 0.6 1964 0.1 1968 0.3 1977 2.0 1993 7.3 1993 17.4 1965 23.8 1976 64.1 2010 35.0 1979 0.7 2012 21.1 1969 108.7 2010 23.2 1985 23.6 1979 20.1 1962 11.9 1986 5.1 1982 0.5 2012 0.1 1965 0.3 1966 1.9 1974 6.5 2012 16.8 1996 22.2 1961 60.3 1977 34.7 1970 0.7 1991 20.4 1965 103.2 1981 22.8 1978 23.6 1969 19.4 1970 11.7 1974 5.0 1968 0.5 1998 0.1 1964 0.2 2014 1.4 1975 5.6 2003 15.9 1993 22.0 2009 57.1 1968 31.9 1995 0.6 1977 19.7 1971 102.2 1965 22.1 1987 21.5 2010 19.2 1987 11.6 1969 4.8 2010 0.5 1989 0.0 2018 0.2 2012 1.3 1979 5.5 2002 14.3 1971 19.7 1993 55.7 1991 31.0 1962 0.6 1962 19.0 1973 98.3 1968 21.3 1991 21.4 1970 19.0 1995 11.6 1968 4.7 1984 0.4 2009 0.0 2017 0.2 1986 0.9 2012 5.4 1973 14.2 2010 19.4 2001 55.3 1986 30.2 1975 0.5 1999 18.7 1992 97.9 1985 20.6 2010 21.3 1983 18.1 1965 11.5 1981 4.5 2012 0.4 1962 0.0 2016 0.2 1973 0.9 2007 5.0 1997 14.0 2016 19.4 1964 55.2 1970 29.0 1968 0.5 1998 17.7 1996 94.0 1963 20.2 1977 20.6 1978 17.8 1975 10.6 2013 4.3 1977 0.3 2015 0.0 2015 0.1 2018 0.9 1991 4.9 1987 13.2 1973 18.7 1965 54.8 1965 27.5 1984 0.5 1989 17.6 2010 93.8 1970 20.1 1965 19.5 2018 17.2 2018 10.5 1978 4.1 1997 0.3 2005 0.0 2014 0.1 2016 0.8 1987 4.9 1980 13.1 2013 18.5 1969 54.1 1969 27.3 1965 0.5 1973 17.2 2012 92.5 2013 20.0 1997 19.4 1991 17.2 2006 10.3 1989 3.9 1994 0.3 2001 0.0 2013 0.1 1994 0.7 1997 4.8 2008 13.1 1966 18.3 1995 53.6 2011 26.4 2006 0.4 2015 17.1 1966 92.2 1986 19.8 1986 19.3 1996 16.7 2001 10.0 1973 3.9 1975 0.3 2000 0.0 2012 0.1 1989 0.7 1995 4.7 1971 12.6 1962 18.2 1999 53.2 1994 26.3 2001 0.4 2009 16.7 1972 91.8 1966 19.4 1995 18.9 1981 16.7 1985 9.6 1962 3.5 1980 0.3 1997 0.0 2011 0.1 1982 0.7 1971 4.6 2018 12.5 1972 17.8 1989 53.2 1966 24.8 1980 0.4 2000 16.0 1998 90.6 2001 19.3 1981 18.7 2001 16.2 1980 9.3 2016 3.3 2019 0.3 1987 0.0 2010 0.1 1981 0.7 1964 4.1 1998 11.8 1998 17.7 1968 52.3 1982 24.7 2018 0.4 1986 15.8 2016 90.3 1995 19.1 2011 18.3 2013 13.7 1976 9.2 1998 3.3 1967 0.3 1985 0.0 2009 0.1 1974 0.6 1983 3.9 1966 11.7 1977 17.5 1996 51.9 1978 24.7 1973 0.4 1985 15.2 1962 90.1 1962 19.1 1980 17.9 1994 13.7 1971 9.2 1984 3.1 2015 0.3 1981 0.0 2008 0.1 1969 0.6 1977 3.9 1964 11.1 2005 17.5 1982 51.8 2018 24.6 1974 0.4 1981 14.8 1981 88.5 1973 19.0 2009 17.6 2016 13.6 1984 9.1 2012 3.0 2005 0.3 1978 0.0 2007 0.1 1967 0.5 2018 3.6 1983 10.4 2017 17.4 1962 51.5 1987 24.5 1981 0.4 1966 14.8 1980 87.7 1978 18.4 2001 17.0 2003 13.3 1988 8.9 1977 2.6 2013 0.3 1977 0.0 2006 0.1 1965 0.5 2010 3.3 1988 10.3 1979 17.1 2017 50.8 1981 24.4 1986 0.4 1965 14.7 2008 86.4 1996 17.9 2019 17.0 1985 13.2 2010 8.4 1975 2.6 2001 0.3 1973 0.0 2005 0.1 1963 0.5 1989 2.9 2010 10.0 1976 16.5 2008 49.7 2001 24.2 2010 0.3 2005 14.5 2013 86.3 1987 17.8 1966 16.7 1966 13.1 2008 8.3 2008 2.6 1981 0.3 1961 0.0 2004 0.1 1962 0.5 1982 2.9 1974 10.0 1967 16.2 1992 49.2 2009 24.2 1985 0.3 2001 14.1 1964 82.5 1980 17.2 1961 16.6 1987 12.8 1996 8.3 2000 2.3 1973 0.2 2011 0.0 2003 0.0 2017 0.4 2003 2.8 1994 9.8 2008 15.9 1966 48.9 1985 24.1 1987 0.3 1997 13.0 1979 82.5 1976 17.0 1968 16.3 1977 12.4 1973 8.3 1994 2.3 1971 0.2 2008 0.0 2002 0.0 2015 0.4 1988 2.7 1965 9.8 1992 15.7 2014 48.9 1983 24.0 1966 0.3 1987 12.9 1983 81.8 1975 16.9 1992 15.7 2004 12.4 1968 7.7 1967 2.0 2011 0.2 2007 0.0 2001 0.0 2013 0.4 1984 2.6 1985 9.8 1980 15.7 2007 48.5 2013 23.6 1996 0.3 1983 12.9 1975 81.2 1991 16.8 2015 15.7 1973 12.2 1986 7.7 1965 1.9 2006 0.2 1999 0.0 1999 0.0 2011 0.3 2013 2.4 1962 9.8 1961 15.4 1973 48.1 1984 23.3 1971 0.3 1982 12.6 1977 79.8 1984 16.3 2017 15.3 1965 12.1 1964 7.6 2015 1.9 1978 0.2 1996 0.0 1998 0.0 2010 0.3 1990 2.2 1975 9.7 2012 15.1 2011 48.1 1962 22.6 1983 0.3 1980 12.4 1988 79.6 2008 16.1 1982 14.8 2015 11.7 2016 7.6 1988 1.9 1974 0.2 1986 0.0 1997 0.0 2009 0.3 1973 2.2 1967 9.5 1964 15.1 1963 47.3 2015 22.4 2008 0.3 1978 12.3 1967 79.5 1993 15.7 2013 14.1 1999 11.7 1972 7.4 2006 1.8 2018 0.2 1983 0.0 1996 0.0 2008 0.3 1970 2.0 2015 9.3 1975 15.0 1990 46.8 1997 22.4 1989 0.3 1969 12.1 1974 78.8 1977 15.6 1994 13.8 2009 11.3 2011 7.4 1979 1.8 1993 0.2 1982 0.0 1995 0.0 2007 0.3 1969 1.9 2007 9.2 1963 15.0 1967 45.8 1996 22.0 2016 0.3 1961 11.7 2017 78.6 2018 15.4 2016 13.8 1984 11.3 1982 7.3 1990 1.8 1987 0.2 1980 0.0 1994 0.0 2006 0.3 1963 1.8 1972 8.8 1991 14.5 1979 44.6 1980 22.0 1978 0.2 2017 11.7 2005 77.3 2016 15.3 1970 13.6 1975 11.0 1974 7.2 1971 1.7 1985 0.2 1972 0.0 1993 0.0 2005 0.2 2017 1.7 2016 8.7 1988 14.4 2012 43.3 2004 21.8 1988 0.2 2014 11.6 1976 76.9 1983 15.2 2018 13.3 2006 10.9 1989 7.0 2001 1.7 1966 0.2 1969 0.0 1992 0.0 2004 0.2 2004 1.7 2000 8.7 1983 14.3 2003 42.0 1995 21.8 1982 0.2 2011 11.4 1987 76.7 1982 14.9 2003 13.2 1962 10.7 2015 6.9 1995 1.7 1961 0.2 1967 0.0 1991 0.0 2003 0.2 2002 1.7 1982 8.3 1970 14.2 1978 41.7 1973 21.4 2015 0.2 2008 11.2 2003 75.7 2012 14.6 1976 12.8 1988 10.5 2003 6.3 2010 1.6 2017 0.2 1965 0.0 1990 0.0 2002 0.2 1996 1.5 1976 8.3 1968 13.2 2004 41.3 2008 20.8 1994 0.2 2007 10.9 1991 75.7 2009 14.5 1988 12.7 1964 10.4 1998 6.3 1976 1.6 2007 0.1 2018 0.0 1989 0.0 2001 0.2 1981 1.4 2009 7.8 1982 13.1 1991 41.3 2002 20.6 1998 0.2 1996 10.5 1986 74.5 1964 14.1 1975 12.5 1972 10.4 1993 6.1 1999 1.5 2009 0.1 2017 0.0 1988 0.0 2000 0.2 1978 1.4 1999 7.4 1990 12.8 1972 40.9 1992 20.4 1977 0.2 1993 10.5 1961 74.2 1992 13.9 1998 12.4 2005 10.4 1981 5.9 1991 1.5 1965 0.1 2014 0.0 1987 0.0 1998 0.2 1976 1.3 1979 7.3 1989 12.7 1986 40.1 2003 20.3 1976 0.2 1974 10.3 1963 72.7 2003 13.6 2008 12.1 2008 10.0 2017 5.8 1985 1.4 1991 0.1 2013 0.0 1986 0.0 1997 0.2 1968 1.3 1970 7.3 1978 12.6 2000 40.1 2000 19.5 2012 0.2 1972 10.1 1982 72.3 1971 13.5 1967 12.0 1976 9.9 1963 5.7 2018 1.4 1969 0.1 2010 0.0 1985 0.0 1996 0.2 1965 1.2 1991 7.3 1974 12.6 1980 39.7 2016 19.3 1967 0.2 1971 9.9 1970 71.7 2017 13.3 2004 11.9 1995 9.7 1978 5.6 1963 1.4 1963 0.1 2006 0.0 1984 0.0 1995 0.2 1962 1.2 1984 7.2 2001 12.4 1998 39.6 1964 17.4 2000 0.2 1968 9.3 1968 70.8 1994 13.2 1973 11.0 2000 9.3 2004 5.5 2002 1.3 2000 0.1 2004 0.0 1983 0.0 1993 0.1 2016 1.1 2017 7.1 2000 12.4 1970 39.2 1967 17.0 1963 0.2 1967 9.2 2018 70.7 1972 13.0 2012 10.9 2012 9.0 1966 5.4 2019 1.3 1962 0.1 1995 0.0 1982 0.0 1992 0.1 2015 1.1 2013 6.8 1995 11.8 2005 39.1 2012 16.5 2019 0.1 2018 9.2 2002 70.1 1967 12.8 1969 10.9 1992 8.9 2009 5.4 1982 1.2 1992 0.1 1993 0.0 1981 0.0 1991 0.1 2014 1.1 1995 6.8 1986 11.8 1987 39.1 1988 16.3 2017 0.1 2016 8.9 2000 68.2 1998 12.7 1972 10.9 1989 8.9 2007 5.2 1997 1.2 1989 0.1 1988 0.0 1980 0.0 1990 0.1 2011 1.1 1986 6.8 1981 11.1 1985 38.2 2019 16.3 2005 0.1 2013 8.6 1995 67.3 1999 12.7 1962 10.9 1980 8.9 2002 5.1 1996 1.1 2016 0.1 1984 0.0 1979 0.0 1988 0.1 2009 1.0 2014 6.6 2004 10.7 1994 37.9 1999 15.8 1991 0.1 2010 8.6 1990 67.0 2015 12.4 1971 10.9 1971 8.8 1983 5.0 1980 1.1 2014 0.1 1979 0.0 1978 0.0 1987 0.1 2008 0.9 2004 6.4 1999 10.6 2006 36.7 1976 15.8 1972 0.1 2006 8.4 1997 66.8 1961 12.1 1993 10.8 1982 8.6 2005 4.7 2017 1.1 2008 0.1 1976 0.0 1977 0.0 1985 0.1 2006 0.9 1990 5.8 1987 10.1 1975 36.5 2006 15.5 2011 0.1 2004 8.4 1989 66.4 2006 11.8 1964 10.4 2019 8.6 1999 4.7 2005 1.1 2004 0.1 1974 0.0 1976 0.0 1984 0.1 2005 0.8 1968 5.1 2007 9.9 2018 35.6 1993 15.5 2002 0.1 1995 8.0 2007 64.4 1988 11.5 2002 10.4 2002 8.6 1994 4.7 1961 1.1 2002 0.1 1971 0.0 1975 0.0 1983 0.1 2001 0.8 1963 5.1 2003 9.6 1983 35.6 1971 15.4 1999 0.1 1994 7.9 1999 63.8 1989 11.4 2006 10.1 2017 8.5 1991 4.5 2003 1.0 1998 0.1 1970 0.0 1974 0.0 1980 0.1 2000 0.7 2011 5.0 2009 9.1 1997 34.8 1975 15.4 1964 0.1 1992 7.8 1978 63.1 1974 11.4 1999 9.9 2011 8.3 1967 4.0 1992 0.9 1990 0.1 1968 0.0 1972 0.0 1979 0.1 1999 0.7 1996 4.8 2015 8.7 1984 34.5 1974 15.3 2003 0.1 1988 7.7 2004 62.9 2011 11.0 2000 9.9 2007 7.8 2019 3.7 2009 0.9 1988 0.1 1966 0.0 1971 0.0 1978 0.1 1998 0.6 1989 4.2 2006 8.6 1977 34.3 2005 15.0 1997 0.1 1984 7.4 2001 62.5 2004 10.2 1983 9.8 1974 7.8 2000 3.4 2014 0.8 1983 0.0 2016 0.0 1970 0.0 1976 0.1 1994 0.6 1961 4.0 2018 8.2 2002 33.4 1990 15.0 1993 0.1 1979 6.9 2015 62.0 1997 10.0 2014 9.8 1967 7.6 2014 3.3 1972 0.8 1972 0.0 2003 0.0 1969 0.0 1975 0.1 1992 0.5 2005 3.5 2002 7.7 2013 32.6 2017 14.0 2009 0.1 1976 6.5 2009 61.3 2000 9.3 1974 9.3 1997 7.3 1977 3.3 1964 0.7 1999 0.0 2002 0.0 1967 0.0 1972 0.1 1967 0.3 2006 3.4 1984 7.1 1974 31.1 1972 13.2 2007 0.1 1970 5.7 1994 61.2 2005 8.8 2005 7.6 1990 6.3 1992 3.1 1987 0.3 2003 0.0 1994 0.0 1966 0.0 1971 0.1 1966 0.3 1978 2.9 2014 6.7 2015 29.2 2007 12.6 2004 0.1 1963 5.0 1984 55.7 2007 8.7 2007 7.3 1993 5.8 2012 2.8 1993 0.3 1986 0.0 1992 0.0 1963 0.0 1970 0.1 1961 0.3 1977 2.8 1994 6.3 2016 27.7 1998 12.5 1990 0.0 2003 4.5 2006 54.8 2002 8.2 1996 7.1 2014 5.7 1997 2.7 2007 0.3 1976 0.0 1990 0.0 1962 0.0 1968 0.0 1985 0.3 1969 2.7 1997 5.9 1971 24.9 2014 12.1 2014 0.0 2002 4.0 2014 51.7 1990 8.0 1990 6.7 1961 4.2 1990 2.2 2004 0.2 1970 0.0 1963 0.0 1961 0.0 1961 0.0 1980 0.1 2001 2.4 2011 2.8 1988 17.5 1989 11.4 1992 0.0 1990 3.1 2011 49.2 2014 3.9 1989 4.7 1998 3.5 1961 2.1 2011 0.1 1964 9.9 1961