England 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 June 2009 & Summer 2009 Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC WIN SPR SUM AUT ANN 1961 10.9 1.4 4.3 0.8 0.7 0.0 0.0 0.0 0.0 0.7 5.9 18.0 --- 5.8 0.1 6.7 42.8 1962 8.6 9.7 19.5 2.4 0.9 0.5 0.0 0.0 0.0 1.3 8.4 19.0 36.3 22.8 0.6 9.8 70.4 1963 27.8 26.1 7.6 1.8 0.4 0.0 0.0 0.0 0.1 0.2 2.9 15.1 73.0 9.8 0.0 3.1 82.0 1964 12.6 9.9 9.9 2.1 0.1 0.0 0.0 0.1 0.2 2.7 4.7 15.9 37.6 12.0 0.1 7.6 58.2 1965 14.9 12.2 12.4 3.1 0.8 0.0 0.0 0.0 0.0 0.7 12.6 9.7 43.0 16.2 0.1 13.4 66.5 1966 15.1 6.9 5.7 3.8 0.4 0.0 0.0 0.0 0.0 1.2 6.1 7.3 31.6 9.9 0.0 7.3 46.4 1967 10.7 7.7 2.7 3.0 1.7 0.0 0.0 0.0 0.0 0.3 7.8 12.7 25.7 7.5 0.1 8.2 46.8 1968 12.3 19.0 6.7 8.8 1.2 0.0 0.0 0.0 0.0 0.1 4.1 13.5 44.1 16.7 0.0 4.3 65.8 1969 7.6 18.8 13.1 6.5 0.4 0.1 0.0 0.0 0.3 0.2 9.5 13.9 39.8 20.1 0.1 10.0 70.5 1970 10.8 14.6 15.6 7.9 0.1 0.0 0.0 0.0 0.0 1.1 3.2 12.1 39.3 23.6 0.0 4.4 65.5 1971 8.5 8.8 9.6 3.6 1.5 0.1 0.0 0.0 0.1 1.4 10.3 4.3 29.3 14.8 0.1 11.8 48.2 1972 10.0 6.0 6.4 1.1 0.3 0.0 0.0 0.0 0.4 1.2 7.7 5.8 20.3 7.8 0.1 9.4 39.0 1973 9.6 11.6 9.3 4.4 0.9 0.1 0.0 0.0 0.0 2.7 10.0 10.9 27.0 14.6 0.1 12.8 59.6 1974 4.9 6.0 6.9 3.6 1.2 0.1 0.0 0.0 0.3 1.5 3.0 2.2 21.8 11.7 0.1 4.9 29.7 1975 3.8 8.6 8.9 5.6 1.2 0.2 0.0 0.0 0.2 1.0 7.5 9.2 14.6 15.7 0.2 8.8 46.4 1976 9.1 9.4 11.8 4.3 0.3 0.0 0.0 0.0 0.1 0.2 6.0 17.4 27.7 16.4 0.0 6.3 58.5 1977 15.2 6.3 4.5 5.8 1.3 0.1 0.0 0.0 0.1 0.1 6.4 3.4 38.9 11.6 0.1 6.5 43.2 1978 13.0 15.9 5.3 6.2 0.2 0.1 0.0 0.0 0.0 0.3 5.4 12.8 32.3 11.7 0.1 5.7 59.1 1979 25.2 20.0 9.1 4.1 4.1 0.0 0.0 0.0 0.3 0.7 6.9 7.5 57.9 17.3 0.0 7.9 78.0 1980 17.7 5.2 8.7 3.0 1.3 0.0 0.0 0.0 0.0 2.4 6.7 9.1 30.5 13.0 0.0 9.0 54.1 1981 11.9 17.3 3.1 4.1 1.2 0.0 0.0 0.0 0.0 2.9 3.1 20.8 38.4 8.5 0.0 6.0 64.6 1982 14.0 8.2 6.2 3.5 2.2 0.0 0.0 0.0 0.1 0.7 4.2 12.5 43.0 11.9 0.0 5.0 51.7 1983 4.2 18.8 4.2 5.0 0.2 0.0 0.0 0.0 0.1 3.2 6.0 7.7 35.5 9.4 0.0 9.3 49.3 1984 12.7 11.2 6.8 7.3 1.7 0.0 0.0 0.0 0.0 0.6 1.3 8.7 31.5 15.7 0.0 2.0 50.3 1985 23.5 15.0 12.3 2.8 0.3 0.1 0.0 0.0 0.0 0.7 12.6 6.4 47.2 15.4 0.1 13.3 73.7 1986 13.3 24.4 9.1 6.0 0.1 0.0 0.0 0.0 0.9 0.7 1.6 6.7 44.0 15.1 0.0 3.2 62.8 1987 20.1 13.9 14.7 0.6 0.7 0.0 0.0 0.0 0.2 2.0 3.0 7.3 40.7 16.0 0.0 5.2 62.6 1988 5.7 7.9 5.9 4.5 0.2 0.0 0.0 0.0 0.1 2.1 11.8 1.8 20.9 10.6 0.0 14.1 40.2 1989 5.5 6.5 4.1 5.5 0.3 0.2 0.0 0.0 0.0 0.1 6.7 7.1 13.7 9.9 0.2 6.9 36.0 1990 3.2 2.0 3.7 6.3 0.3 0.0 0.0 0.0 0.1 0.3 3.7 9.2 12.2 10.3 0.0 4.1 28.8 1991 13.5 18.8 3.9 3.8 0.7 0.4 0.0 0.0 0.1 0.7 5.2 10.7 41.6 8.3 0.4 6.1 57.9 1992 14.3 8.1 1.6 2.0 0.2 0.0 0.0 0.0 0.0 4.0 3.2 12.6 33.1 3.9 0.0 7.2 46.1 1993 6.3 5.7 7.9 1.2 0.6 0.0 0.0 0.0 0.2 4.7 11.0 7.5 24.6 9.6 0.0 15.8 44.9 1994 8.1 13.4 2.0 2.6 0.6 0.0 0.0 0.0 0.0 0.9 0.9 7.2 28.9 5.2 0.0 1.8 35.6 1995 10.4 3.4 11.8 4.0 1.6 0.0 0.0 0.0 0.1 0.6 5.1 15.2 20.9 17.5 0.0 5.8 52.3 1996 7.8 18.2 9.1 5.3 3.3 0.0 0.0 0.0 0.0 0.2 11.7 13.8 41.2 17.7 0.0 11.9 69.5 1997 18.0 4.3 2.6 4.2 1.4 0.0 0.0 0.0 0.0 4.7 2.5 6.7 36.1 8.2 0.0 7.3 44.6 1998 8.3 4.9 3.6 3.7 0.2 0.0 0.0 0.0 0.0 1.0 6.3 9.2 20.0 7.5 0.0 7.3 37.3 1999 6.1 7.9 3.1 3.7 0.1 0.0 0.0 0.0 0.0 0.6 2.0 9.6 23.2 6.9 0.0 2.7 33.2 2000 9.6 5.5 4.8 3.9 0.2 0.0 0.0 0.0 0.0 0.4 2.1 8.3 24.7 8.8 0.0 2.5 34.7 2001 13.4 13.1 8.7 2.8 0.6 0.0 0.0 0.0 0.0 0.0 4.8 16.5 34.9 12.1 0.0 4.9 60.0 2002 7.8 4.1 4.5 3.0 0.3 0.0 0.0 0.0 0.0 1.8 0.7 4.5 28.4 7.7 0.0 2.6 26.7 2003 11.4 13.7 6.6 4.5 0.2 0.0 0.0 0.0 0.2 3.4 2.9 10.9 29.6 11.4 0.0 6.5 53.9 2004 8.8 10.9 5.6 0.9 0.3 0.0 0.0 0.0 0.0 0.1 4.0 8.5 30.6 6.8 0.0 4.1 39.1 2005 4.5 9.9 7.5 2.3 1.1 0.0 0.0 0.0 0.1 0.0 10.9 11.4 22.9 10.9 0.0 11.0 47.8 2006 9.1 9.7 12.1 3.3 0.2 0.0 0.0 0.0 0.0 0.0 3.3 5.6 30.3 15.6 0.0 3.3 43.4 2007 4.6 7.1 3.8 1.1 0.2 0.0 0.0 0.0 0.1 1.1 4.7 10.4 17.2 5.0 0.0 6.0 33.0 2008 3.3 10.9 5.6 5.2 0.3 0.0 0.0 0.0 0.0 2.3 4.3 13.7 24.6 11.2 0.0 6.6 45.7 2009 14.2 11.9 5.8 1.1 0.1 0.0 0.0 0.0 0.0 0.4 39.8 7.0 0.0