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