East_Anglia 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 8.4 0.8 4.3 0.4 0.5 0.0 0.0 0.0 0.0 0.8 6.2 17.0 --- 5.1 0.0 7.0 38.3 1962 8.9 9.9 18.8 1.0 0.9 0.8 0.0 0.0 0.0 0.8 8.8 20.4 35.8 20.7 0.8 9.6 70.4 1963 28.7 27.3 7.2 2.0 0.1 0.0 0.0 0.0 0.0 0.0 2.4 15.7 76.4 9.4 0.0 2.5 83.6 1964 16.1 8.4 9.3 1.5 0.0 0.0 0.0 0.0 0.0 2.0 4.5 15.7 40.2 10.8 0.0 6.6 57.7 1965 14.0 10.2 11.3 2.0 0.3 0.0 0.0 0.0 0.0 1.0 12.3 9.3 40.0 13.7 0.0 13.3 60.6 1966 15.6 5.6 6.3 1.8 0.1 0.0 0.0 0.0 0.0 0.3 5.2 7.8 30.5 8.1 0.0 5.6 42.7 1967 10.9 6.7 1.7 3.3 1.1 0.0 0.0 0.0 0.0 0.1 7.4 13.2 25.4 6.1 0.0 7.6 44.5 1968 13.5 16.1 5.3 7.9 0.4 0.0 0.0 0.0 0.0 0.0 3.3 12.9 42.8 13.6 0.0 3.3 59.5 1969 7.2 18.7 9.8 5.3 0.1 0.1 0.0 0.0 0.5 0.1 7.2 11.5 38.8 15.2 0.1 7.7 60.3 1970 10.6 14.1 15.9 6.7 0.0 0.0 0.0 0.0 0.0 0.8 2.3 11.5 36.2 22.6 0.0 3.1 61.9 1971 8.6 7.8 9.5 2.8 1.4 0.0 0.0 0.0 0.0 1.3 8.6 3.7 27.9 13.8 0.0 9.9 43.7 1972 10.7 5.6 5.8 0.6 0.1 0.0 0.0 0.0 0.2 0.8 6.6 5.4 20.0 6.5 0.0 7.5 35.7 1973 8.4 12.3 8.1 3.4 0.5 0.0 0.0 0.0 0.0 2.0 10.7 10.0 26.1 12.0 0.0 12.7 55.4 1974 4.5 4.8 4.8 1.8 1.0 0.0 0.0 0.0 0.1 0.7 2.7 1.0 19.3 7.6 0.0 3.5 21.4 1975 2.4 8.9 7.0 4.1 0.3 0.0 0.0 0.0 0.1 0.4 7.9 10.9 12.2 11.4 0.0 8.4 41.9 1976 9.4 9.0 10.5 3.3 0.3 0.0 0.0 0.0 0.0 0.1 4.6 16.7 29.2 14.0 0.0 4.7 53.8 1977 13.5 5.6 4.6 6.0 0.5 0.0 0.0 0.0 0.0 0.1 4.2 1.8 35.8 11.2 0.0 4.3 36.4 1978 13.0 15.1 4.5 5.4 0.1 0.0 0.0 0.0 0.0 0.1 5.2 10.2 29.9 10.0 0.0 5.3 53.6 1979 25.3 20.0 6.6 3.0 2.9 0.0 0.0 0.0 0.1 0.8 7.2 5.5 55.5 12.5 0.0 8.0 71.4 1980 15.5 5.9 6.9 2.5 1.0 0.0 0.0 0.0 0.0 2.1 5.4 8.8 26.9 10.4 0.0 7.6 48.2 1981 12.4 17.0 2.6 3.2 1.6 0.0 0.0 0.0 0.0 1.5 2.2 20.9 38.2 7.4 0.0 3.7 61.3 1982 15.4 7.6 6.0 3.3 1.5 0.0 0.0 0.0 0.0 0.4 3.6 13.4 43.9 10.8 0.0 4.0 51.2 1983 3.7 17.5 3.3 3.8 0.1 0.0 0.0 0.0 0.0 2.7 5.1 8.4 34.6 7.3 0.0 7.8 44.7 1984 11.6 9.6 5.3 6.5 0.8 0.0 0.0 0.0 0.0 0.6 0.3 9.6 29.6 12.6 0.0 1.0 44.4 1985 23.6 15.0 11.6 2.5 0.1 0.0 0.0 0.0 0.0 0.7 12.4 4.9 48.2 14.2 0.0 13.1 70.8 1986 12.3 24.1 9.3 4.1 0.1 0.0 0.0 0.0 0.3 0.4 0.8 5.4 41.4 13.5 0.0 1.5 56.8 1987 20.3 13.6 15.8 0.3 0.2 0.0 0.0 0.0 0.0 1.7 2.5 5.4 39.3 16.2 0.0 4.2 59.6 1988 6.7 7.0 4.8 4.5 0.1 0.0 0.0 0.0 0.1 1.7 12.8 1.6 19.1 9.4 0.0 14.5 39.2 1989 6.7 5.8 2.5 3.0 0.1 0.1 0.0 0.0 0.0 0.0 7.3 6.3 14.1 5.6 0.1 7.3 31.8 1990 2.2 1.5 3.3 6.0 0.5 0.0 0.0 0.0 0.0 0.1 2.8 6.5 10.0 9.8 0.0 2.9 22.9 1991 9.3 18.5 3.6 3.6 1.0 0.2 0.0 0.0 0.0 0.7 5.5 12.3 34.3 8.2 0.2 6.2 54.7 1992 11.6 9.2 0.8 2.0 0.1 0.0 0.0 0.0 0.0 2.5 1.9 12.4 33.2 2.9 0.0 4.4 40.5 1993 6.4 4.2 8.1 0.5 0.2 0.0 0.0 0.0 0.0 3.5 9.8 4.8 23.1 8.9 0.0 13.4 37.8 1994 7.5 13.0 1.5 1.4 0.4 0.0 0.0 0.0 0.0 0.4 0.8 8.4 25.3 3.3 0.0 1.3 33.4 1995 9.2 2.5 11.2 3.7 0.8 0.0 0.0 0.0 0.0 0.9 4.3 15.5 20.0 15.8 0.0 5.2 48.1 1996 7.7 18.7 9.3 6.0 3.6 0.0 0.0 0.0 0.0 0.1 11.4 13.5 41.9 18.9 0.0 11.5 70.4 1997 18.9 5.1 1.9 4.4 1.0 0.0 0.0 0.0 0.0 5.0 3.7 4.7 37.5 7.3 0.0 8.7 44.7 1998 6.6 5.7 3.2 2.2 0.1 0.0 0.0 0.0 0.0 0.4 6.8 8.3 17.1 5.6 0.0 7.3 33.6 1999 5.4 8.6 2.3 3.1 0.0 0.0 0.0 0.0 0.0 0.2 1.1 9.3 22.4 5.5 0.0 1.3 30.2 2000 8.4 5.4 3.7 3.2 0.1 0.0 0.0 0.0 0.0 0.1 2.2 7.5 23.2 6.9 0.0 2.2 30.5 2001 13.2 11.6 6.2 1.6 0.2 0.0 0.0 0.0 0.0 0.0 4.2 15.9 32.3 7.9 0.0 4.2 52.9 2002 7.9 3.7 4.6 2.0 0.1 0.0 0.0 0.0 0.0 1.2 0.7 3.5 27.6 6.7 0.0 2.0 23.8 2003 11.5 12.9 7.5 4.1 0.1 0.0 0.0 0.0 0.1 2.3 2.2 9.7 28.0 11.7 0.0 4.6 50.4 2004 8.3 10.0 4.3 0.6 0.1 0.0 0.0 0.0 0.0 0.1 3.6 9.1 28.1 5.0 0.0 3.7 36.1 2005 4.5 9.7 6.9 1.6 0.6 0.0 0.0 0.0 0.0 0.0 9.9 12.1 23.3 9.2 0.0 9.9 45.4 2006 8.7 7.4 12.2 3.0 0.1 0.0 0.0 0.0 0.0 0.0 2.7 6.9 28.2 15.3 0.0 2.7 41.1 2007 4.0 7.8 2.8 1.1 0.0 0.0 0.0 0.0 0.0 1.2 5.1 9.7 18.8 4.0 0.0 6.3 31.8 2008 1.4 12.2 5.2 4.7 0.2 0.0 0.0 0.0 0.0 2.9 4.0 12.4 23.3 10.0 0.0 7.0 43.1 2009 13.9 11.6 6.8 0.7 0.1 0.0 0.0 0.0 0.0 0.2 0.4 13.5 37.9 7.5 0.0 0.6 47.1 2010 15.9 14.6 8.1 2.6 1.7 0.0 0.0 0.0 0.0 1.1 8.9 23.2 44.0 12.4 0.0 10.0 76.2 2011 8.9 2.5 6.4 0.3 0.7 0.0 0.0 0.0 0.0 0.9 1.5 5.3 34.5 7.4 0.0 2.4 26.5 2012 8.0 14.0 3.5 4.3 0.3 0.0 0.0 0.0 0.0 0.5 3.9 10.3 27.3 8.0 0.0 4.4 44.8 2013 15.7 10.7 15.9 8.5 1.3 0.0 0.0 0.0 0.0 0.0 2.9 3.1 36.8 25.7 0.0 2.9 58.1 2014 4.8 0.4 5.1 1.1 0.4 0.0 0.0 0.0 0.0 0.0 2.6 9.8 8.4 6.6 0.0 2.6 24.2 2015 11.8 9.0 4.3 2.0 0.8 0.0 0.0 0.0 0.0 0.2 2.2 0.2 30.6 7.1 0.0 2.3 30.4 2016 7.4 9.7 6.4 3.4 0.7 0.0 0.0 0.0 0.0 0.0 4.9 8.1 17.3 10.5 0.0 4.9 40.7 2017 15.5 1.9 0.3 2.4 0.3 0.0 0.0 0.0 0.0 0.1 4.6 10.9 25.6 3.1 0.0 4.7 36.2 2018 5.8 15.2 8.7 0.2 0.1 0.0 0.0 0.0 0.1 1.0 1.8 3.4 31.9 9.0 0.0 2.8 36.2 2019 12.3 8.0 1.3 5.2 0.3 23.6 6.7