Areal values from HadUK-Grid 1km gridded climate data from land surface network Source: Met Office National Climate Information Centre Monthly, seasonal and annual number of days in the month with air frost (minimum temperature below zero) for Wales Areal series, starting in 1960 Last updated 01-Apr-2024 11:46 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 28.8 1963 26.3 1963 22.2 1962 11.5 2021 4.8 1996 0.6 1991 0.0 1965 0.0 1976 0.8 1986 6.6 1993 12.0 2005 24.1 2010 71.6 1963 29.9 2013 0.6 1991 16.9 1993 93.5 2010 25.3 1979 25.5 1986 19.9 2013 9.5 1968 4.4 1979 0.2 1962 0.0 1984 0.0 1971 0.7 1969 5.4 2003 11.9 1965 20.9 1981 59.0 1979 25.9 1962 0.2 1962 13.7 1988 82.0 1979 24.0 1985 21.3 1968 15.5 1969 8.9 2013 3.7 1982 0.2 1969 0.0 1973 0.0 1987 0.4 1975 4.6 1997 11.4 1988 18.4 1961 50.9 2010 23.6 1969 0.2 1969 12.7 2010 81.9 1963 19.4 2010 20.8 1979 14.9 1970 8.4 1970 2.6 2021 0.2 1989 0.0 1971 0.0 1964 0.3 2018 4.3 1992 10.7 1985 18.0 1976 46.0 1996 23.3 1970 0.2 1973 12.0 2005 75.7 1969 19.0 1980 19.1 1996 13.6 1987 8.1 1986 2.3 1984 0.2 1985 0.0 2001 0.0 1977 0.3 1979 3.7 2018 10.4 1996 17.2 1996 45.7 1991 21.6 1979 0.2 1989 11.9 1965 75.3 1996 18.9 1987 19.1 1991 13.1 2010 8.0 1989 2.2 2020 0.2 1973 0.0 2020 0.0 1966 0.3 1974 2.9 2010 10.3 1993 17.2 1995 45.6 1986 20.7 2021 0.2 1985 11.3 1985 70.4 1985 18.3 1997 19.0 1983 12.7 1976 7.4 1978 2.1 1995 0.2 2011 0.0 1996 0.0 2018 0.2 2010 2.8 1983 9.6 2010 16.4 1962 43.4 1985 20.5 2010 0.2 2011 10.4 1996 68.8 1968 16.0 1977 18.3 1969 12.2 1985 7.1 1975 2.0 2010 0.2 1971 0.0 1986 0.0 1983 0.2 1972 2.3 1988 9.4 1969 16.3 2008 43.2 2011 18.9 1996 0.2 1971 10.1 1969 67.5 2013 15.6 2011 17.0 1981 11.9 1964 7.1 1969 1.8 1967 0.1 1975 0.0 1964 0.0 2010 0.1 1987 2.2 1987 9.1 1971 16.1 1963 42.9 1982 18.4 1968 0.1 1975 9.7 1971 67.5 1962 15.6 1992 16.8 2010 11.8 2006 6.9 1984 1.6 2019 0.1 1977 0.0 2006 0.0 1967 0.1 1962 1.9 2008 8.0 1967 16.1 1969 42.9 1965 18.1 1975 0.1 1977 9.1 1973 64.3 1986 15.2 1991 15.9 1960 11.4 1995 6.7 1990 1.6 1968 0.1 1999 0.0 2005 0.0 1972 0.1 2003 1.9 1981 7.8 1972 15.7 2001 42.6 2009 17.8 1984 0.1 1999 9.0 2003 64.2 1965 15.1 2013 15.1 1978 11.4 1979 5.9 1983 1.5 1993 0.1 1972 0.0 2004 0.0 1965 0.1 2007 1.9 1973 7.7 1980 14.8 1964 41.7 1968 17.3 1976 0.1 1972 9.0 1983 63.7 1970 15.0 2021 14.5 1970 11.4 1965 5.8 1979 1.4 1971 0.0 1978 0.0 2002 0.0 1993 0.1 2020 1.7 1964 7.7 1977 14.7 2009 41.2 1970 17.3 1973 0.0 1987 9.0 1972 62.9 1987 14.8 2009 14.2 2018 11.1 1973 5.6 1977 1.4 1974 0.0 1987 0.0 2003 0.0 1974 0.0 1993 1.6 2002 7.6 1962 13.6 1968 40.1 1977 16.8 1965 0.0 1978 8.7 1962 62.6 2001 13.9 1965 14.2 1965 10.9 2018 5.6 2016 1.3 1981 0.0 2001 0.0 2008 0.0 2009 0.0 1990 1.6 1974 7.2 1973 13.5 2022 39.6 1997 16.8 1995 0.0 2001 8.4 1980 60.5 1981 13.9 1966 14.1 2001 10.0 2001 5.6 2008 1.3 1977 0.0 2008 0.0 2000 0.0 2003 0.0 1977 1.5 1975 6.5 2016 13.3 1992 39.3 1987 16.2 1986 0.0 1976 8.1 1967 59.4 1964 13.7 2001 14.1 1987 10.0 1974 5.6 1966 1.3 1965 0.0 1984 0.0 1999 0.0 2004 0.0 1961 1.5 1966 6.2 1983 13.0 1960 39.2 1969 15.9 1964 0.0 2008 7.7 1977 59.0 1976 13.3 1960 13.8 2013 9.8 1975 5.4 2022 1.3 2005 0.0 1996 0.0 1998 0.0 2002 0.0 1988 1.5 2012 5.6 2017 12.8 1978 38.6 2013 15.8 1987 0.0 1984 6.9 2018 56.0 1991 13.0 1961 12.9 2003 9.6 2011 5.4 1981 1.2 1975 0.0 1967 0.0 1997 0.0 2005 0.0 2012 1.2 1994 5.6 1990 12.8 1970 38.4 1964 15.7 2006 0.0 1965 6.9 1975 55.7 1973 12.9 1986 12.7 1984 9.1 1980 5.3 2010 1.1 1997 0.0 1961 0.0 2007 0.0 2006 0.0 2015 1.1 2019 5.6 1979 11.8 1982 35.3 2001 15.3 1985 0.0 1996 6.8 2012 55.3 2021 12.9 2006 12.6 2004 9.1 1996 5.2 2000 1.0 2013 0.0 1981 0.0 1960 0.0 2007 0.0 1965 1.0 1972 5.6 1968 11.5 1990 35.2 1981 15.2 2001 0.0 1967 6.6 2016 55.1 1978 12.4 1982 12.5 2015 8.5 1984 5.1 1973 1.0 1961 0.0 2022 0.0 2009 0.0 2001 0.0 1996 0.9 1962 5.4 2013 11.4 2007 34.8 1983 15.0 1974 0.0 1961 6.5 1964 54.3 1960 12.2 1984 12.4 1985 8.2 2015 5.1 1996 1.0 1969 0.0 1968 0.0 2010 0.0 2008 0.0 1982 0.9 1998 5.4 2007 10.4 1967 34.7 1962 14.0 2016 0.0 1981 6.2 1966 54.3 2003 12.0 2019 12.0 2005 8.1 1971 5.1 2012 1.0 1973 0.0 2015 0.0 1995 0.0 2000 0.0 1984 0.8 1986 5.3 2012 10.2 2003 34.3 2006 13.6 2018 0.0 2022 6.2 2017 52.7 1980 11.6 2003 11.9 1994 8.1 2016 4.9 1998 1.0 1987 0.0 2004 0.0 2012 0.0 1960 0.0 1960 0.8 1982 5.2 1989 9.9 1989 32.5 2021 13.1 1980 0.0 1964 6.1 2008 52.6 1984 11.6 1964 11.6 2006 8.1 1986 4.5 2001 0.9 1980 0.0 1965 0.0 2013 0.0 2014 0.0 1970 0.7 1960 5.0 1975 9.7 2005 31.9 2015 13.1 1971 0.0 1968 6.0 1979 51.1 1995 11.2 2024 11.6 2012 8.1 2004 4.3 1999 0.7 2001 0.0 1988 0.0 2014 0.0 2011 0.0 1976 0.6 1971 4.9 1976 9.7 2012 31.9 2004 13.0 1989 0.0 2015 5.8 1997 51.0 1982 11.0 2017 11.5 2009 7.9 2005 4.2 1976 0.7 2018 0.0 2019 0.0 2015 0.0 2012 0.0 2005 0.6 1980 4.9 2021 9.4 1973 31.5 2018 12.3 1982 0.0 2004 5.8 2007 50.3 2006 10.6 1970 11.3 1976 7.3 1968 4.2 1994 0.6 1991 0.0 2021 0.0 2016 0.0 2013 0.0 1999 0.6 1985 4.8 1978 9.4 2017 31.5 1980 12.1 1978 0.0 1988 5.8 1992 49.4 2009 10.5 2022 11.0 2008 7.3 1963 4.2 2002 0.6 1962 0.0 1993 0.0 2017 0.0 1998 0.0 2019 0.5 2017 4.8 1964 9.3 2014 31.3 1984 11.5 2005 0.0 2020 5.7 1990 49.1 2005 10.4 1981 10.7 1964 7.1 1993 4.1 1965 0.5 1994 0.0 1974 0.0 2018 0.0 2015 0.0 2022 0.5 1970 4.8 1995 9.0 1987 30.9 2023 11.1 2008 0.0 2019 5.6 1968 47.8 2008 10.3 1998 10.4 2021 6.8 2003 4.0 1988 0.5 2017 0.0 1964 0.0 2019 0.0 2016 0.0 1971 0.5 1984 4.6 1966 8.7 1998 30.7 2003 11.0 2020 0.0 2021 5.4 2013 47.8 1983 10.3 1973 10.1 2016 6.8 1972 4.0 1964 0.5 2012 0.0 1986 0.0 2021 0.0 2017 0.0 1973 0.5 2009 4.3 2006 8.4 1991 29.3 1992 10.6 2003 0.0 1993 5.2 1976 45.1 2018 10.2 2000 9.7 1982 6.6 2020 3.8 2006 0.4 2003 0.0 1979 0.0 2022 0.0 2019 0.0 1967 0.5 1991 4.3 1998 8.2 1979 28.6 1971 10.4 2000 0.0 1986 5.2 1989 44.8 1992 10.1 2015 9.5 1973 6.6 2021 3.7 1974 0.4 1960 0.0 1995 0.0 2011 0.0 2020 0.0 1991 0.4 1961 4.2 2008 7.9 1980 28.4 1978 10.3 1990 0.0 1974 5.2 1998 44.2 1971 10.0 1968 9.2 1962 6.5 2023 3.6 1971 0.4 1976 0.0 2005 0.0 1992 0.0 2021 0.0 1966 0.4 2007 4.1 1982 7.6 2000 28.3 1966 10.3 2022 0.0 1979 5.2 1987 43.9 2012 10.0 1978 8.6 1971 5.7 2009 3.4 1991 0.4 2007 0.0 1970 0.0 1994 0.0 2022 0.0 1995 0.4 1999 4.1 1991 7.4 1965 27.6 2002 10.2 1977 0.0 2005 5.1 2019 43.5 1977 9.7 1996 8.4 2023 5.5 2008 3.4 2003 0.3 1985 0.0 1994 0.0 1993 0.0 1999 0.0 1994 0.3 2000 4.1 1960 7.2 1985 27.5 1961 10.2 2015 0.0 1995 5.0 1978 43.5 1961 9.6 1972 7.5 2007 5.3 1982 3.3 1982 0.3 2016 0.0 2009 0.0 1962 0.0 1992 0.0 1964 0.3 1976 4.0 2019 7.1 1997 25.7 2008 10.1 1966 0.0 2018 5.0 1982 43.5 2016 9.2 1995 7.4 1975 5.1 2000 3.2 1995 0.3 1989 0.0 2002 0.0 1963 0.0 1997 0.0 2000 0.3 2023 3.9 2001 7.1 2020 25.6 1994 9.9 1993 0.0 1966 4.9 2021 43.2 1993 9.1 2004 7.3 1967 4.9 2022 3.1 1980 0.3 1992 0.0 1976 0.0 1966 0.0 1981 0.0 2016 0.2 2011 3.8 1961 7.0 1984 24.4 1976 9.9 2011 0.0 1970 4.8 1995 42.4 1997 9.0 2023 7.0 1966 4.9 2002 3.1 1962 0.2 1963 0.0 1998 0.0 1967 0.0 1962 0.0 2014 0.2 1978 3.6 2004 6.8 1993 24.2 1973 9.4 2023 0.0 1994 4.8 1960 42.0 1975 8.6 1967 6.9 1988 4.7 1989 3.0 1997 0.2 1988 0.0 1982 0.0 1968 0.0 1963 0.0 2013 0.1 2015 3.5 2003 6.6 2016 23.8 2017 9.4 1983 0.0 2009 4.6 1991 41.7 1967 8.3 2012 6.3 1974 4.6 1978 2.9 2023 0.2 1972 0.0 2018 0.0 1969 0.0 1968 0.0 2021 0.1 1979 3.4 2023 6.4 1983 23.5 2012 9.2 2002 0.0 2002 4.3 2006 40.7 2004 7.9 2018 6.3 1989 4.6 1960 2.8 2017 0.2 2004 0.0 1980 0.0 1970 0.0 1969 0.0 2011 0.1 2016 3.0 1999 6.4 1986 22.9 1993 9.1 2004 0.0 1983 4.3 1961 40.5 1966 7.3 1969 6.2 2017 4.5 1988 2.8 1985 0.1 1998 0.0 2020 0.0 1972 0.0 1970 0.0 2017 0.0 1995 2.9 1987 6.4 1999 22.0 2005 9.1 1981 0.0 2010 3.9 2001 38.5 1989 7.3 1971 6.1 1999 4.5 1966 2.7 2019 0.1 2002 0.0 2000 0.0 1974 0.0 1973 0.0 2009 0.0 2022 2.8 2018 6.2 2002 21.4 1999 8.9 1963 0.0 1998 3.9 1974 38.2 2017 7.2 2002 6.1 1977 4.5 1961 2.4 2005 0.1 1990 0.0 2016 0.0 1975 0.0 1975 0.0 2008 0.0 1967 2.8 2020 6.2 2004 21.3 1998 8.8 1988 0.0 1982 3.7 2023 36.8 2022 7.1 1976 6.1 2019 4.4 2014 2.4 1967 0.1 1983 0.0 2014 0.0 1976 0.0 1978 0.0 1992 0.0 1969 2.4 1984 6.0 1975 21.2 2000 8.2 1991 0.0 1980 3.6 2004 36.3 1972 7.1 1962 5.5 1972 4.2 2024 2.4 1960 0.1 2006 0.0 2013 0.0 1977 0.0 1979 0.0 2006 0.0 1990 2.4 2015 5.7 2006 20.7 1974 7.8 1972 0.0 2016 3.4 1999 35.4 2015 6.9 1994 5.3 1992 4.2 1991 2.3 1992 0.1 1966 0.0 2017 0.0 1978 0.0 1980 0.0 2004 0.0 1965 2.4 2014 5.3 1971 20.5 2019 7.6 2009 0.0 2000 3.3 1986 35.3 2019 6.6 1999 5.0 1993 3.7 2007 2.2 2020 0.0 2015 0.0 1960 0.0 1979 0.0 1982 0.0 2002 0.0 2014 2.0 1970 5.1 2019 20.4 1972 7.5 1999 0.0 2014 3.2 1981 34.9 2023 6.1 2016 4.8 2002 3.5 1990 2.0 2018 0.0 1978 0.0 1992 0.0 1980 0.0 1996 0.0 2001 0.0 2013 2.0 1974 4.5 1972 19.2 1967 7.5 2012 0.0 2017 3.0 1984 34.6 1998 5.1 1974 4.7 2000 3.4 1983 1.9 2009 0.0 2011 0.0 2012 0.0 1981 0.0 1984 0.0 1998 0.0 2020 1.8 1986 4.4 2023 19.0 2024 7.4 1960 0.0 1960 2.9 2020 34.2 2000 4.6 1993 4.3 1980 3.3 1977 1.9 2015 0.0 2000 0.0 2010 0.0 1982 0.0 1985 0.0 1997 0.0 1977 1.7 1963 4.3 2021 18.6 1988 7.3 1967 0.0 1992 2.6 2015 34.1 2011 4.2 2020 4.1 1997 3.2 1999 1.4 1963 0.0 1986 0.0 2007 0.0 1983 0.0 1986 0.0 1989 0.0 1989 1.5 1992 4.2 1994 17.3 2007 7.1 2019 0.0 2013 2.5 1970 33.8 2007 4.1 2007 3.8 1998 3.2 1967 1.3 1993 0.0 1964 0.0 2006 0.0 1985 0.0 1988 0.0 1985 0.0 2004 1.3 1981 3.6 2011 16.6 2022 7.0 1997 0.0 2012 2.4 2014 33.7 1988 4.1 2014 3.5 2011 2.9 1997 1.2 1987 0.0 2022 0.0 2003 0.0 1987 0.0 1989 0.0 1983 0.0 2021 1.3 1997 3.4 2013 16.6 1995 6.6 1998 0.0 2007 2.0 2002 32.6 1990 4.0 1983 3.3 2024 2.7 2019 0.9 2004 0.0 2008 0.0 1997 0.0 1988 0.0 1990 0.0 1981 0.0 1996 1.1 2000 3.3 1977 16.3 2016 6.5 1994 0.0 2006 1.7 1963 31.3 1974 3.9 1989 3.2 1995 2.4 1981 0.9 2007 0.0 1970 0.0 1990 0.0 1989 0.0 1991 0.0 1980 0.0 1963 1.1 2011 3.3 1966 15.1 1990 6.2 1961 0.0 2003 1.6 1994 31.1 1994 3.8 2005 3.1 2020 2.3 1992 0.8 1972 0.0 2023 0.0 1983 0.0 1990 0.0 1961 0.0 1978 0.0 2001 0.6 2022 2.5 2018 12.4 2020 5.5 2017 0.0 1997 1.4 2000 30.0 1999 3.4 1975 1.9 2014 2.2 2017 0.7 1961 0.0 2009 0.0 1966 0.0 1991 0.0 1994 0.0 1968 0.0 1968 0.4 2002 1.5 1988 11.8 1975 4.9 2007 0.0 1990 1.3 2011 29.4 2002 3.3 1990 1.8 1990 1.9 2012 0.5 2014 0.0 2014 0.0 1963 0.0 1961 0.0 1995 0.0 1963 0.0 2006 0.4 1994 1.0 1974 11.6 1989 4.9 2014 0.0 1963 0.8 2009 28.3 2020 3.3 2008 1.8 2022 1.8 1994 0.3 2011 0.0 1999 0.0 2023 0.0 2023 0.0 2023 0.0 2023 0.0 2005 0.3 2009 0.0 2015 9.3 2014 4.8 1992 0.0 2023 0.7 2022 22.5 2014 2.8 1988 1.6 1961 1.6 1998 --- 2024 --- 2024 --- 2024 --- 2024 --- 2024 --- 2024 --- 2024 --- 2024 --- 2024 --- 1960 --- 2024 --- 2024 --- 2024 --- 2024