England_SW_and_S_Wales 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. Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC WIN SPR SUM AUT ANN 1961 9.0 1.0 4.4 0.5 0.7 0.1 0.0 0.0 0.0 0.5 3.5 13.9 --- 5.5 0.1 4.0 33.5 1962 6.9 8.8 18.1 2.2 0.7 0.2 0.0 0.0 0.1 1.0 6.4 14.4 29.6 21.0 0.2 7.5 58.9 1963 28.9 22.7 5.8 1.3 0.4 0.0 0.0 0.0 0.1 0.1 1.7 14.7 66.0 7.5 0.0 1.9 75.7 1964 9.3 9.6 9.5 2.2 0.1 0.0 0.0 0.0 0.1 1.8 3.3 12.8 33.7 11.8 0.1 5.2 48.8 1965 12.8 13.4 11.0 2.8 0.8 0.1 0.0 0.0 0.1 0.4 9.5 6.6 39.0 14.6 0.1 10.0 57.4 1966 12.7 4.4 4.0 3.4 0.4 0.1 0.0 0.0 0.0 1.2 5.6 4.0 23.6 7.7 0.1 6.8 35.7 1967 9.1 7.6 3.3 2.3 1.6 0.1 0.0 0.0 0.0 0.4 5.7 9.5 20.7 7.2 0.1 6.1 39.6 1968 8.1 18.2 6.9 7.3 1.4 0.1 0.0 0.0 0.0 0.1 4.3 11.6 35.8 15.5 0.1 4.4 57.9 1969 6.0 17.1 12.4 4.8 0.6 0.1 0.0 0.0 0.3 0.3 7.8 12.7 34.7 17.8 0.1 8.4 62.1 1970 9.4 12.7 13.1 7.1 0.1 0.0 0.0 0.0 0.0 0.7 1.9 12.5 34.8 20.4 0.1 2.7 57.6 1971 6.1 8.3 8.3 2.8 1.2 0.1 0.0 0.0 0.1 0.8 8.6 3.7 26.8 12.4 0.1 9.5 40.1 1972 8.0 4.0 5.3 0.9 0.3 0.1 0.0 0.0 0.4 1.2 6.4 3.3 15.7 6.5 0.1 8.1 29.9 1973 9.0 8.7 8.1 3.9 0.6 0.1 0.0 0.0 0.0 1.6 5.9 8.7 21.0 12.6 0.1 7.6 46.9 1974 3.8 4.9 7.7 3.2 0.9 0.0 0.0 0.0 0.3 1.3 1.2 1.3 17.5 11.8 0.1 2.8 24.8 1975 2.8 4.7 8.0 6.3 0.8 0.1 0.0 0.0 0.3 1.0 3.5 7.4 8.8 15.1 0.1 4.8 34.9 1976 7.0 10.2 10.4 4.0 0.3 0.0 0.0 0.0 0.1 0.4 3.7 14.4 24.6 14.8 0.1 4.3 50.8 1977 13.5 4.7 3.3 4.6 1.5 0.1 0.0 0.0 0.1 0.1 6.7 2.5 32.6 9.3 0.1 6.9 37.0 1978 8.9 13.4 5.0 5.5 0.3 0.1 0.0 0.0 0.0 0.3 4.5 10.3 24.8 10.8 0.1 4.8 48.3 1979 22.9 16.6 8.7 4.5 3.9 0.0 0.0 0.0 0.3 0.2 4.9 7.2 49.7 17.1 0.1 5.5 69.3 1980 17.6 3.0 7.0 2.4 0.8 0.0 0.0 0.0 0.0 1.1 6.6 7.9 27.8 10.2 0.0 7.7 46.5 1981 7.6 15.1 2.3 3.6 0.6 0.0 0.0 0.0 0.0 1.7 2.2 15.9 30.7 6.4 0.1 3.9 49.0 1982 10.6 6.6 4.4 2.7 2.3 0.0 0.0 0.0 0.1 0.5 3.6 8.2 33.2 9.4 0.1 4.2 39.1 1983 3.1 16.3 3.3 3.7 0.2 0.0 0.0 0.0 0.1 2.1 5.6 5.0 27.6 7.2 0.1 7.7 39.4 1984 9.3 9.3 7.4 5.7 1.4 0.0 0.0 0.0 0.1 0.5 1.8 6.0 23.6 14.5 0.0 2.4 41.5 1985 22.3 12.4 9.8 2.0 0.3 0.1 0.0 0.0 0.0 0.7 9.1 5.5 40.7 12.1 0.1 9.8 62.3 1986 9.6 24.2 7.1 6.5 0.1 0.0 0.0 0.0 0.7 0.5 1.5 5.4 39.3 13.7 0.0 2.8 55.7 1987 17.9 12.1 11.2 0.8 0.6 0.1 0.0 0.0 0.2 1.5 2.9 6.4 35.5 12.7 0.1 4.6 53.8 1988 3.5 7.1 3.9 3.7 0.3 0.0 0.0 0.0 0.1 1.3 9.5 1.4 17.0 7.9 0.0 10.9 30.8 1989 4.5 5.6 3.2 5.8 0.2 0.1 0.0 0.0 0.0 0.1 5.1 6.3 11.5 9.2 0.1 5.2 30.9 1990 2.6 1.2 2.8 5.7 0.2 0.0 0.0 0.0 0.1 0.1 4.3 10.0 10.1 8.7 0.0 4.5 26.9 1991 12.2 18.3 3.2 3.3 0.4 0.3 0.0 0.0 0.1 0.5 4.0 6.8 40.5 6.9 0.3 4.5 49.0 1992 13.5 6.5 1.6 1.9 0.1 0.0 0.0 0.0 0.0 3.0 1.6 9.5 26.8 3.7 0.0 4.6 37.8 1993 4.1 4.6 6.5 0.9 0.7 0.0 0.0 0.0 0.2 4.1 7.8 5.3 18.2 8.1 0.1 12.0 34.1 1994 5.8 10.0 1.7 2.9 0.6 0.0 0.0 0.0 0.0 1.0 0.3 4.6 21.2 5.2 0.0 1.4 27.1 1995 6.7 2.2 9.3 2.9 1.5 0.0 0.0 0.0 0.1 0.1 4.3 13.7 13.5 13.7 0.0 4.5 40.8 1996 7.9 16.3 7.7 4.2 3.3 0.0 0.0 0.0 0.1 0.1 7.9 14.3 37.9 15.2 0.1 8.2 61.8 1997 15.2 4.0 2.1 3.4 0.9 0.0 0.0 0.0 0.0 3.0 1.8 7.0 33.5 6.4 0.0 4.9 37.6 1998 8.8 4.0 1.8 3.8 0.2 0.0 0.0 0.0 0.0 0.8 3.9 8.0 19.7 5.8 0.0 4.6 31.2 1999 6.2 5.6 3.2 3.3 0.1 0.1 0.0 0.0 0.1 0.7 2.1 5.7 19.9 6.6 0.1 2.8 27.0 2000 10.0 3.9 3.5 3.2 0.1 0.0 0.0 0.0 0.0 0.3 1.7 6.4 19.6 6.8 0.0 2.0 29.3 2001 9.5 11.0 7.6 3.3 0.5 0.0 0.0 0.0 0.0 0.0 3.9 12.9 27.0 11.4 0.0 3.9 48.9 2002 5.2 3.9 3.3 2.2 0.2 0.0 0.0 0.0 0.0 1.3 0.6 4.5 22.0 5.7 0.0 1.9 21.2 2003 10.8 10.3 4.3 3.7 0.3 0.0 0.0 0.0 0.3 4.2 2.5 6.8 25.6 8.3 0.0 7.0 43.2 2004 7.0 10.4 7.0 0.8 0.2 0.0 0.0 0.0 0.0 0.1 2.3 5.8 24.2 8.1 0.0 2.4 33.6 2005 3.2 10.8 7.1 1.8 0.8 0.0 0.0 0.0 0.0 0.0 9.7 8.9 19.7 9.7 0.0 9.8 42.4 2006 9.9 10.5 9.1 3.4 0.2 0.0 0.0 0.0 0.0 0.0 3.8 4.8 29.3 12.7 0.0 3.8 41.7 2007 3.9 4.8 3.2 0.9 0.4 0.0 0.0 0.0 0.2 0.7 4.2 8.3 13.4 4.4 0.0 5.0 26.4 2008 2.6 7.9 3.8 5.0 0.1 0.0 0.0 0.0 0.0 1.4 2.7 13.0 18.7 9.0 0.0 4.2 36.6 2009 13.8 9.4 5.2 1.3 0.1 0.0 0.0 0.0 0.0 0.5 0.4 11.3 36.2 6.6 0.0 1.0 42.2 2010 18.2 11.3 10.4 2.9 1.5 0.0 0.0 0.0 0.2 2.2 8.5 22.8 40.9 14.8 0.0 10.9 78.0 2011 13.2 3.3 7.9 0.3 0.2 0.1 0.0 0.0 0.0 0.3 0.7 3.1 39.3 8.4 0.1 1.0 29.1 2012 5.8 11.6 2.1 3.8 0.5 0.0 0.0 0.0 0.1 1.3 3.9 7.7 20.5 6.3 0.0 5.3 36.7 2013 10.3 10.3 15.7 6.9 0.9 0.0 0.0 0.0 0.0 0.1 4.6 3.3 28.3 23.5 0.0 4.7 52.1 2014 3.7 1.5 2.8 0.4 0.1 0.0 0.0 0.0 0.0 0.1 2.0 7.5 8.5 3.3 0.0 2.2 18.1 2015 8.0 10.5 4.8 1.5 0.2 0.0 0.0 0.0 0.0 0.3 1.9 0.3 25.9 6.5 0.0 2.2 27.6 2016 5.3 8.2 6.5 3.7 0.3 0.0 0.0 0.0 0.0 0.2 4.4 5.8 13.8 10.6 0.0 4.7 34.5 2017 9.4 5.2 1.3 2.1 0.3 0.0 0.0 0.0 0.0 0.3 4.5 6.6 20.3 3.7 0.0 4.8 29.7 2018 5.8 13.4 8.6 0.9 0.4 0.0 0.0 0.0 0.2 2.9 2.2 1.9 25.9 9.9 0.0 5.4 36.5 2019 9.6 5.7 2.2 1.9 1.6 17.2 5.8