England_NW_and_N_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 13.4 2.8 3.2 1.6 0.8 0.1 0.0 0.0 0.1 0.4 5.0 19.1 --- 5.6 0.2 5.5 46.6 1962 8.4 9.4 20.5 4.4 0.9 0.4 0.0 0.0 0.1 1.6 8.1 17.3 36.8 25.8 0.5 9.8 71.1 1963 26.5 26.3 8.3 2.2 0.8 0.0 0.0 0.0 0.1 0.2 4.2 14.3 70.2 11.2 0.0 4.6 82.9 1964 11.7 11.0 11.8 3.0 0.1 0.1 0.0 0.1 0.3 2.5 5.7 15.3 37.0 15.0 0.2 8.5 61.8 1965 15.5 13.4 12.9 4.4 1.2 0.1 0.0 0.0 0.1 0.7 13.3 9.7 44.2 18.6 0.1 14.0 71.3 1966 15.0 9.1 5.4 6.2 0.8 0.1 0.0 0.0 0.1 2.0 6.1 7.0 33.8 12.5 0.1 8.1 51.8 1967 9.9 8.1 4.1 3.5 2.1 0.2 0.0 0.0 0.1 0.6 9.7 12.1 25.0 9.7 0.2 10.3 50.3 1968 11.5 20.9 8.4 9.2 2.5 0.1 0.0 0.0 0.0 0.2 5.7 14.4 44.4 20.1 0.1 5.9 72.8 1969 9.2 19.2 16.1 8.4 1.3 0.3 0.0 0.0 0.2 0.3 11.7 17.0 42.8 25.8 0.3 12.3 83.8 1970 11.7 15.7 15.5 8.8 0.2 0.0 0.0 0.0 0.1 0.9 3.7 11.3 44.4 24.5 0.1 4.6 67.8 1971 8.8 8.2 10.0 5.1 1.8 0.2 0.1 0.0 0.2 1.4 10.7 4.9 28.3 16.9 0.3 12.3 51.4 1972 9.8 7.5 7.4 2.1 0.6 0.1 0.0 0.0 0.9 1.7 8.6 6.1 22.2 10.1 0.1 11.2 45.0 1973 9.9 10.7 9.6 6.0 1.3 0.3 0.0 0.0 0.1 3.4 8.9 10.5 26.8 16.8 0.3 12.3 60.6 1974 6.1 6.1 8.0 5.8 1.6 0.1 0.0 0.0 0.6 2.3 3.9 2.6 22.6 15.3 0.1 6.8 37.0 1975 4.8 9.5 11.5 6.2 2.7 0.4 0.0 0.0 0.4 1.8 7.2 7.1 17.0 20.4 0.4 9.4 51.6 1976 8.4 9.5 13.0 4.5 0.3 0.0 0.0 0.0 0.1 0.4 6.1 17.5 25.0 17.8 0.1 6.6 59.9 1977 16.4 7.6 4.3 5.6 2.4 0.3 0.0 0.0 0.2 0.2 7.9 4.3 41.5 12.3 0.3 8.2 49.2 1978 12.3 16.6 5.8 7.4 0.6 0.1 0.0 0.0 0.0 0.3 5.1 14.7 33.3 13.9 0.1 5.4 63.1 1979 25.0 20.5 11.8 5.1 4.4 0.0 0.0 0.0 0.8 0.6 6.5 9.4 60.2 21.3 0.1 7.9 84.2 1980 18.0 5.7 11.2 4.0 1.6 0.0 0.0 0.0 0.0 2.4 7.9 8.8 33.2 16.8 0.1 10.3 59.8 1981 11.9 17.5 4.5 5.6 1.2 0.1 0.0 0.0 0.0 3.9 2.8 22.2 38.2 11.3 0.1 6.7 69.7 1982 14.3 9.4 6.4 4.1 2.9 0.1 0.0 0.0 0.1 0.9 4.7 12.6 45.9 13.4 0.1 5.7 55.5 1983 5.1 19.4 4.4 6.7 0.4 0.1 0.0 0.0 0.1 3.5 6.6 6.7 37.1 11.5 0.1 10.2 52.9 1984 14.0 12.5 7.8 7.3 2.8 0.1 0.0 0.0 0.1 0.6 1.8 7.1 33.2 17.9 0.1 2.4 54.0 1985 24.2 14.5 12.9 3.0 0.6 0.2 0.0 0.0 0.0 0.8 12.9 7.5 45.8 16.5 0.2 13.7 76.6 1986 14.6 24.4 9.0 7.5 0.2 0.1 0.0 0.0 1.7 0.8 2.7 6.9 46.4 16.7 0.1 5.3 67.9 1987 20.7 14.8 14.7 1.3 1.3 0.1 0.0 0.0 0.4 2.0 3.5 9.2 42.4 17.3 0.1 5.8 67.8 1988 5.0 7.8 6.6 4.3 0.5 0.1 0.0 0.0 0.2 2.8 10.0 1.7 21.9 11.4 0.1 12.9 38.8 1989 3.6 6.3 5.7 7.1 0.5 0.3 0.0 0.0 0.1 0.1 6.2 10.4 11.5 13.3 0.3 6.4 40.3 1990 3.6 2.8 3.7 6.0 0.3 0.0 0.0 0.0 0.1 0.2 5.3 11.2 16.8 10.0 0.0 5.7 33.3 1991 16.7 19.3 4.6 3.9 0.9 0.6 0.0 0.0 0.2 0.7 4.7 9.2 47.2 9.3 0.6 5.6 60.6 1992 15.0 5.8 2.1 1.9 0.3 0.0 0.0 0.0 0.0 5.1 3.9 13.3 30.1 4.3 0.0 9.0 47.4 1993 6.0 5.9 6.7 1.7 1.4 0.0 0.0 0.0 0.4 6.4 12.4 9.5 25.2 9.8 0.1 19.1 50.3 1994 8.5 14.3 2.7 4.4 1.4 0.0 0.0 0.0 0.0 1.1 0.8 5.8 32.4 8.5 0.0 2.0 39.2 1995 12.1 4.3 11.7 4.2 2.5 0.0 0.0 0.0 0.3 0.4 5.1 15.8 22.2 18.5 0.0 5.7 56.4 1996 9.1 19.0 9.6 4.6 4.5 0.1 0.0 0.0 0.1 0.2 11.8 15.1 43.9 18.8 0.1 12.1 74.2 1997 18.6 4.2 3.4 3.8 1.8 0.0 0.0 0.0 0.1 4.7 1.1 6.9 37.9 9.0 0.0 5.9 44.7 1998 9.6 3.7 3.6 5.2 0.2 0.0 0.0 0.0 0.0 1.4 5.7 8.8 20.2 9.0 0.1 7.1 38.2 1999 6.9 7.3 3.5 4.0 0.2 0.1 0.0 0.0 0.0 0.9 3.6 9.4 23.0 7.6 0.1 4.4 35.7 2000 9.2 5.6 5.2 5.4 0.3 0.0 0.0 0.0 0.0 0.7 1.8 9.3 24.3 10.9 0.1 2.5 37.6 2001 14.6 14.9 11.6 4.3 1.3 0.1 0.0 0.0 0.0 0.0 4.0 16.5 38.8 17.2 0.1 4.1 67.5 2002 7.4 4.6 5.3 4.5 0.3 0.0 0.0 0.0 0.1 2.8 0.6 5.9 28.5 10.2 0.0 3.5 31.6 2003 11.8 13.6 7.0 3.8 0.3 0.0 0.0 0.0 0.1 4.7 2.9 12.3 31.4 11.2 0.0 7.7 56.6 2004 8.5 12.4 7.5 0.7 0.6 0.1 0.0 0.0 0.0 0.1 4.7 7.3 33.2 8.9 0.1 4.8 42.0 2005 4.7 10.3 7.4 2.3 1.5 0.1 0.0 0.0 0.2 0.1 11.4 10.1 22.3 11.2 0.1 11.6 48.0 2006 10.9 10.1 13.2 3.6 0.3 0.0 0.0 0.0 0.0 0.1 3.1 4.4 31.1 17.1 0.0 3.2 45.7 2007 5.4 7.9 4.9 1.9 0.5 0.1 0.0 0.0 0.4 0.8 4.7 10.8 17.6 7.2 0.1 5.8 37.2 2008 4.8 10.2 7.1 5.1 0.4 0.1 0.0 0.0 0.1 2.4 4.7 15.3 25.8 12.6 0.1 7.2 50.1 2009 13.3 12.0 5.7 2.1 0.1 0.1 0.0 0.0 0.1 0.6 1.3 15.5 40.7 8.0 0.1 1.9 50.9 2010 17.8 19.5 12.1 4.9 2.5 0.0 0.0 0.0 0.1 2.7 10.3 23.2 52.8 19.4 0.0 13.1 93.1 2011 15.5 3.1 10.4 0.5 0.4 0.2 0.0 0.0 0.0 0.4 1.4 5.1 41.9 11.2 0.2 1.8 37.0 2012 9.6 11.4 2.6 5.3 1.7 0.1 0.0 0.0 0.2 1.6 5.5 10.7 26.1 9.5 0.1 7.3 48.7 2013 15.5 15.3 20.2 9.0 1.1 0.0 0.0 0.0 0.0 0.1 6.5 2.9 41.5 30.3 0.1 6.6 70.6 2014 3.6 2.5 4.7 1.0 0.2 0.0 0.0 0.0 0.0 0.5 1.4 9.2 9.0 5.9 0.1 2.0 23.2 2015 10.8 10.5 7.8 3.6 0.6 0.1 0.0 0.0 0.1 0.5 2.4 1.3 30.5 12.1 0.1 3.0 37.9 2016 6.7 10.5 7.2 6.2 0.5 0.0 0.0 0.0 0.0 0.4 8.9 5.1 18.5 13.9 0.0 9.3 45.5 2017 12.0 4.7 3.0 3.1 0.7 0.0 0.0 0.0 0.0 0.7 6.1 10.6 21.8 6.8 0.0 6.8 41.0 2018 6.4 14.8 12.0 2.1 0.7 0.0 0.0 0.0 0.3 3.3 2.6 3.5 31.8 14.8 0.1 6.3 45.9 2019 12.5 6.6 2.9 3.9 1.7 22.6 8.5