England_N 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 13.3 2.7 3.0 1.6 0.7 0.1 0.0 0.0 0.0 0.5 6.4 20.5 --- 5.3 0.1 6.9 48.8 1962 9.3 9.9 20.3 3.9 0.8 0.5 0.0 0.0 0.1 1.8 9.5 19.9 39.8 24.9 0.6 11.4 76.0 1963 25.6 27.2 8.7 2.3 0.7 0.0 0.0 0.0 0.2 0.3 4.3 13.6 72.7 11.7 0.0 4.7 82.9 1964 13.0 11.2 10.9 2.2 0.1 0.1 0.0 0.1 0.4 3.1 6.2 17.3 37.8 13.2 0.2 9.7 64.5 1965 16.5 11.6 14.2 4.2 1.1 0.0 0.1 0.0 0.0 0.8 14.7 12.0 45.5 19.5 0.1 15.5 75.2 1966 15.5 10.8 6.3 6.0 0.7 0.0 0.0 0.0 0.0 1.8 7.0 9.5 38.3 13.1 0.1 8.8 57.8 1967 11.7 7.4 3.6 3.7 2.2 0.1 0.0 0.0 0.0 0.6 9.8 13.7 28.5 9.5 0.1 10.4 52.8 1968 13.9 21.4 8.2 9.9 2.0 0.0 0.0 0.0 0.0 0.2 4.5 14.8 49.0 20.2 0.1 4.7 74.9 1969 9.4 20.0 16.3 8.0 0.8 0.2 0.0 0.0 0.2 0.2 12.3 15.9 44.1 25.1 0.2 12.7 83.3 1970 12.1 16.6 17.0 9.4 0.2 0.0 0.0 0.0 0.1 1.0 4.8 10.8 44.7 26.6 0.1 5.9 72.1 1971 10.2 9.1 10.3 5.1 1.9 0.2 0.0 0.0 0.1 1.9 11.6 5.1 30.1 17.3 0.2 13.6 55.5 1972 10.7 8.2 7.3 1.8 0.5 0.1 0.0 0.0 0.8 1.3 8.9 7.5 23.9 9.6 0.1 11.0 47.2 1973 9.9 12.2 8.9 6.0 1.6 0.1 0.0 0.0 0.1 3.5 11.1 12.9 29.6 16.5 0.1 14.6 66.3 1974 6.5 6.8 7.4 5.6 1.4 0.2 0.0 0.0 0.7 2.1 4.8 3.5 26.2 14.5 0.2 7.5 38.9 1975 6.0 10.4 11.6 6.0 2.3 0.4 0.0 0.0 0.3 1.5 8.5 8.4 19.9 20.0 0.4 10.3 55.4 1976 10.2 8.9 12.6 4.7 0.2 0.0 0.0 0.0 0.1 0.3 7.5 19.0 27.5 17.5 0.1 7.9 63.6 1977 17.3 8.4 5.2 6.0 1.9 0.2 0.0 0.1 0.1 0.2 7.3 4.6 44.6 13.2 0.3 7.6 51.3 1978 15.6 17.7 6.0 7.2 0.4 0.1 0.0 0.0 0.0 0.3 5.8 15.2 37.9 13.7 0.1 6.1 68.5 1979 26.2 21.8 12.2 4.5 4.8 0.0 0.0 0.0 0.7 0.9 7.4 9.2 63.2 21.5 0.0 9.0 87.7 1980 18.2 6.2 11.5 3.9 1.8 0.0 0.0 0.0 0.0 3.1 7.1 9.9 33.6 17.2 0.1 10.3 61.8 1981 14.3 17.8 5.0 5.4 1.5 0.1 0.0 0.0 0.0 4.6 3.7 23.6 42.0 11.9 0.1 8.3 76.0 1982 15.4 9.8 7.1 4.2 2.6 0.1 0.0 0.0 0.1 1.0 5.1 14.9 48.9 13.8 0.1 6.2 60.2 1983 5.7 20.3 4.6 7.3 0.3 0.1 0.0 0.0 0.2 3.9 6.6 7.7 40.9 12.2 0.1 10.7 56.8 1984 16.4 13.0 7.9 8.2 2.7 0.0 0.0 0.0 0.1 0.5 1.3 8.7 37.1 18.8 0.1 1.9 58.8 1985 23.8 16.1 13.4 3.4 0.5 0.1 0.0 0.0 0.0 0.7 14.5 8.1 48.6 17.3 0.1 15.2 80.6 1986 15.9 24.2 9.9 7.0 0.2 0.1 0.0 0.0 1.5 0.9 2.4 7.7 48.2 17.0 0.1 4.7 69.6 1987 21.1 15.1 15.9 0.9 1.3 0.1 0.0 0.0 0.4 2.2 3.5 8.6 43.9 18.1 0.1 6.1 69.0 1988 7.0 9.0 8.4 4.8 0.4 0.0 0.0 0.0 0.2 2.8 10.6 1.8 24.6 13.6 0.1 13.6 45.0 1989 4.4 7.4 6.5 7.0 0.5 0.3 0.0 0.0 0.1 0.1 6.7 9.6 13.6 14.0 0.3 6.9 42.6 1990 4.0 3.5 4.4 7.0 0.4 0.0 0.0 0.0 0.1 0.3 4.6 9.8 17.1 11.7 0.0 4.9 33.9 1991 17.7 19.0 4.6 4.4 0.7 0.5 0.0 0.0 0.2 0.7 6.0 11.4 46.5 9.7 0.5 6.9 65.2 1992 16.0 7.3 2.5 2.1 0.4 0.0 0.0 0.0 0.0 5.5 5.4 14.4 34.7 5.1 0.0 10.9 53.8 1993 7.8 6.6 8.0 1.7 0.8 0.0 0.0 0.0 0.3 5.8 12.7 11.1 28.8 10.6 0.1 18.9 55.0 1994 10.2 16.0 3.0 4.0 1.0 0.0 0.0 0.0 0.1 1.0 1.4 7.4 37.3 7.9 0.0 2.5 44.1 1995 14.2 5.4 13.4 5.2 2.6 0.0 0.0 0.0 0.3 0.8 5.1 16.2 27.0 21.1 0.0 6.1 63.1 1996 8.1 19.0 9.8 5.7 3.7 0.0 0.0 0.0 0.1 0.2 13.3 14.2 43.3 19.1 0.1 13.6 74.0 1997 19.3 4.3 3.6 4.1 2.2 0.0 0.0 0.0 0.1 4.8 1.6 6.7 37.8 10.0 0.0 6.4 46.7 1998 8.7 4.5 5.2 4.7 0.2 0.0 0.0 0.0 0.0 1.7 7.5 9.9 19.9 10.2 0.1 9.3 42.6 1999 7.1 9.1 3.5 4.1 0.2 0.0 0.0 0.0 0.0 0.9 3.3 12.2 26.1 7.8 0.1 4.2 40.4 2000 8.9 6.3 6.1 5.1 0.3 0.0 0.0 0.0 0.0 0.8 2.3 10.5 27.4 11.4 0.1 3.1 40.3 2001 15.8 16.0 12.3 4.2 1.1 0.1 0.0 0.0 0.0 0.0 4.8 17.8 42.3 17.7 0.1 4.9 72.2 2002 9.1 5.2 5.6 4.5 0.4 0.0 0.0 0.0 0.1 2.8 0.9 5.7 32.1 10.5 0.0 3.7 34.2 2003 11.7 15.6 7.7 4.7 0.3 0.0 0.0 0.0 0.1 3.5 3.6 13.9 33.0 12.6 0.0 7.3 61.1 2004 9.4 11.8 6.3 0.9 0.5 0.0 0.0 0.0 0.0 0.1 5.8 9.5 35.1 7.7 0.1 6.0 44.4 2005 5.5 9.7 7.5 3.2 1.3 0.1 0.0 0.0 0.1 0.1 11.4 11.1 24.6 12.0 0.1 11.7 50.0 2006 9.4 9.8 14.4 3.7 0.4 0.0 0.0 0.0 0.0 0.1 2.7 5.8 30.3 18.6 0.0 2.8 46.4 2007 5.5 8.1 4.9 1.4 0.3 0.0 0.0 0.0 0.3 1.2 4.3 11.3 19.5 6.7 0.0 5.8 37.4 2008 5.2 10.9 7.5 5.6 0.6 0.0 0.0 0.0 0.1 2.8 5.7 14.7 27.4 13.7 0.1 8.6 53.1 2009 13.2 13.0 5.4 1.6 0.2 0.1 0.0 0.0 0.1 0.4 1.6 16.3 41.0 7.2 0.1 2.0 51.8 2010 17.6 18.7 10.8 3.7 2.6 0.0 0.0 0.0 0.1 1.9 10.1 22.8 52.6 17.2 0.0 12.0 88.4 2011 14.9 3.3 8.2 0.8 0.7 0.0 0.0 0.0 0.0 0.4 1.3 7.2 41.1 9.7 0.1 1.7 36.9 2012 9.7 12.8 3.0 5.2 2.1 0.1 0.0 0.0 0.2 1.6 5.8 11.4 29.6 10.4 0.1 7.6 52.0 2013 15.1 15.4 19.1 7.6 0.8 0.0 0.0 0.0 0.1 0.1 7.1 3.3 41.9 27.6 0.0 7.3 68.7 2014 5.1 3.4 5.6 1.5 0.6 0.0 0.0 0.0 0.0 0.4 2.0 11.0 11.8 7.6 0.0 2.4 29.5 2015 12.4 10.2 7.1 3.6 1.1 0.2 0.0 0.0 0.1 0.4 2.6 1.9 33.6 11.8 0.2 3.1 39.5 2016 9.0 12.0 6.7 5.9 0.6 0.0 0.0 0.0 0.0 0.3 8.5 5.4 22.9 13.2 0.0 8.8 48.6 2017 13.6 4.7 2.9 3.2 0.5 0.0 0.0 0.0 0.1 0.5 6.3 13.1 23.8 6.5 0.0 6.9 44.9 2018 6.6 15.9 12.6 1.7 0.9 0.0 0.0 0.0 0.2 2.9 2.3 5.5 35.7 15.2 0.0 5.4 48.8 2019 13.0 7.3 2.9 5.2 1.4 25.8 9.6