Scotland 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 15.9 6.2 3.2 4.6 1.6 0.3 0.0 0.0 0.1 0.5 8.5 20.6 --- 9.4 0.3 9.1 61.4 1962 10.6 12.1 19.2 8.7 1.3 0.4 0.0 0.1 0.1 1.8 10.8 14.0 43.2 29.2 0.5 12.7 79.2 1963 24.0 23.9 8.5 5.5 1.2 0.0 0.0 0.1 0.2 0.6 8.4 13.8 61.9 15.2 0.1 9.2 86.1 1964 9.6 11.5 11.4 3.2 0.1 0.4 0.0 0.3 0.5 2.9 6.9 16.6 34.9 14.7 0.8 10.3 63.6 1965 18.3 14.2 15.7 5.8 1.3 0.1 0.1 0.1 0.2 1.9 15.9 15.9 49.2 22.7 0.3 18.0 89.5 1966 16.9 15.1 8.0 12.4 1.4 0.1 0.0 0.2 0.1 3.0 11.6 13.3 47.9 21.8 0.3 14.6 82.0 1967 11.2 8.4 7.6 7.0 3.1 0.1 0.0 0.1 0.1 2.1 7.3 13.1 32.9 17.7 0.2 9.5 60.1 1968 14.4 23.6 11.2 10.0 4.6 0.1 0.0 0.0 0.2 0.5 8.4 16.6 51.1 25.8 0.2 9.0 89.6 1969 10.8 22.6 21.1 9.8 1.3 0.2 0.0 0.1 0.3 0.3 18.1 15.6 50.0 32.2 0.3 18.7 100.1 1970 13.7 20.7 18.1 12.7 0.1 0.1 0.0 0.0 0.2 1.0 6.6 10.9 49.9 30.9 0.1 7.9 84.2 1971 9.9 9.2 11.4 6.1 1.8 0.1 0.0 0.0 0.6 3.4 12.0 5.4 29.9 19.2 0.2 16.0 59.8 1972 12.0 11.3 10.6 3.0 0.7 0.1 0.0 0.0 1.7 1.8 10.5 10.4 28.7 14.3 0.2 14.0 62.2 1973 11.0 14.4 10.2 9.1 1.8 0.2 0.1 0.2 0.2 5.1 11.1 13.4 35.8 21.0 0.4 16.5 76.7 1974 7.8 8.6 10.5 9.0 1.7 0.1 0.0 0.1 1.5 2.3 5.6 5.8 29.8 21.3 0.2 9.5 53.1 1975 12.3 11.6 16.0 7.8 3.5 0.7 0.0 0.0 1.1 1.8 6.9 7.9 29.7 27.3 0.7 9.9 69.5 1976 13.0 11.9 11.9 5.1 0.3 0.1 0.0 0.0 0.2 1.0 7.3 21.5 32.8 17.3 0.1 8.5 72.4 1977 18.4 14.8 6.3 8.0 3.8 0.2 0.0 0.2 0.5 0.3 10.9 7.8 54.7 18.1 0.5 11.7 71.3 1978 20.4 18.8 8.3 9.6 1.5 0.3 0.0 0.0 0.1 0.3 6.4 12.4 47.0 19.4 0.4 6.7 78.0 1979 26.0 22.1 19.0 6.4 7.3 0.1 0.0 0.0 1.0 0.9 9.0 12.5 60.5 32.7 0.1 10.9 104.4 1980 17.1 10.1 14.6 4.0 2.7 0.2 0.0 0.0 0.1 3.9 9.2 10.8 39.7 21.3 0.3 13.1 72.7 1981 16.9 16.2 9.4 10.4 2.1 0.2 0.0 0.1 0.2 5.9 4.9 23.4 44.0 21.9 0.3 11.0 89.8 1982 14.2 9.5 9.4 4.8 4.8 0.1 0.0 0.1 0.3 1.2 6.6 15.1 47.1 19.0 0.3 8.1 66.1 1983 8.6 19.3 7.7 12.4 0.9 0.2 0.0 0.0 0.5 2.7 7.0 7.9 43.1 21.0 0.2 10.2 67.3 1984 22.9 11.7 12.5 7.2 3.8 0.1 0.0 0.0 0.4 0.9 3.6 7.5 42.5 23.5 0.1 4.9 70.5 1985 22.2 14.8 15.0 4.8 1.5 0.4 0.0 0.0 0.0 2.1 17.8 10.3 44.6 21.3 0.4 20.0 89.1 1986 18.1 23.0 10.3 11.9 0.2 0.2 0.0 0.2 2.0 0.7 5.8 10.5 51.4 22.4 0.4 8.6 82.9 1987 19.5 15.5 17.8 3.0 1.6 0.2 0.0 0.0 0.5 4.0 5.0 11.4 45.5 22.4 0.2 9.5 78.5 1988 13.0 11.4 11.8 6.6 0.8 0.1 0.0 0.0 0.3 2.7 7.0 2.2 35.7 19.2 0.1 9.9 55.8 1989 3.2 9.3 9.0 9.6 1.2 0.5 0.0 0.0 0.5 0.4 6.3 15.9 14.6 19.9 0.5 7.3 56.0 1990 7.1 6.6 3.7 6.1 0.7 0.0 0.0 0.0 0.3 0.8 6.6 13.3 29.6 10.5 0.0 7.7 45.2 1991 18.4 18.2 6.8 4.6 1.2 0.7 0.0 0.0 0.9 0.9 7.2 9.3 49.9 12.6 0.7 8.9 68.1 1992 12.7 8.1 5.6 3.3 1.0 0.0 0.0 0.0 0.1 6.9 7.5 13.8 30.1 10.0 0.0 14.5 59.1 1993 10.3 6.0 9.5 2.2 1.9 0.1 0.0 0.0 1.6 6.1 13.0 17.1 30.1 13.5 0.1 20.8 67.8 1994 13.2 15.7 7.7 6.9 3.6 0.0 0.0 0.1 0.1 2.4 1.9 9.1 45.9 18.2 0.1 4.3 60.6 1995 16.9 10.8 17.4 5.7 5.4 0.1 0.0 0.0 0.6 0.7 5.5 18.4 36.9 28.6 0.1 6.7 81.6 1996 8.0 18.3 11.6 4.3 5.5 0.2 0.0 0.0 0.2 0.5 15.0 17.2 44.7 21.5 0.2 15.7 80.8 1997 17.3 7.8 4.3 4.4 3.3 0.3 0.0 0.0 0.6 4.1 2.0 8.1 42.3 12.0 0.3 6.7 52.2 1998 12.6 3.8 9.0 9.0 0.8 0.6 0.0 0.0 0.2 3.3 9.5 10.7 24.6 18.9 0.6 12.9 59.5 1999 10.2 12.4 7.9 5.5 0.4 0.2 0.0 0.3 0.1 0.9 5.1 15.1 33.4 13.8 0.5 6.1 58.1 2000 8.8 9.5 7.0 7.9 1.0 0.3 0.1 0.0 0.1 1.2 6.0 12.0 33.4 15.9 0.4 7.2 53.8 2001 17.3 16.3 15.9 6.7 2.3 0.3 0.0 0.0 0.1 0.1 5.6 16.8 45.6 24.9 0.3 5.8 81.4 2002 8.5 9.5 7.6 4.8 1.0 0.0 0.0 0.0 0.2 4.9 3.2 9.1 34.7 13.3 0.0 8.3 48.6 2003 14.7 14.9 8.6 3.4 0.5 0.0 0.0 0.0 0.3 5.5 3.6 12.5 38.6 12.5 0.0 9.5 63.9 2004 12.0 15.1 8.4 1.6 0.9 0.1 0.0 0.1 0.2 0.9 5.4 9.9 39.6 10.9 0.2 6.5 54.6 2005 7.5 11.9 8.3 4.1 2.8 0.2 0.0 0.0 0.1 0.4 9.2 9.8 29.3 15.2 0.2 9.8 54.4 2006 10.5 13.0 15.7 6.3 1.7 0.1 0.0 0.0 0.1 0.4 2.8 7.0 33.2 23.7 0.1 3.2 57.5 2007 7.4 8.1 8.0 2.4 1.4 0.2 0.0 0.1 0.9 1.1 4.2 12.2 22.5 11.9 0.2 6.2 46.0 2008 11.4 10.0 11.2 7.5 0.9 0.3 0.0 0.0 0.2 4.0 7.8 15.2 33.5 19.5 0.3 11.9 68.3 2009 14.9 12.7 7.5 3.0 1.0 0.4 0.0 0.0 0.1 1.1 4.1 20.5 42.8 11.5 0.5 5.3 65.3 2010 19.8 20.7 12.4 5.9 3.9 0.1 0.0 0.1 0.6 2.6 13.2 23.9 61.0 22.2 0.1 16.3 103.1 2011 16.4 7.8 10.0 1.1 1.2 0.2 0.0 0.0 0.1 0.5 1.9 11.9 48.1 12.4 0.2 2.4 51.2 2012 10.4 9.1 4.2 8.8 4.1 0.6 0.0 0.2 0.6 5.5 7.4 13.6 31.4 17.1 0.8 13.5 64.4 2013 12.7 17.0 20.2 10.4 2.1 0.1 0.0 0.0 0.3 0.8 9.4 5.7 43.3 32.7 0.1 10.5 78.8 2014 8.1 5.9 5.6 2.4 1.0 0.0 0.0 0.1 0.0 0.9 2.9 11.5 19.7 9.0 0.2 3.8 38.5 2015 14.1 12.2 9.2 6.0 2.4 0.3 0.0 0.0 0.1 1.5 3.8 5.6 37.8 17.7 0.3 5.4 55.3 2016 12.6 15.4 9.8 8.6 0.8 0.1 0.0 0.2 0.1 1.6 11.4 4.9 33.7 19.2 0.2 13.1 65.4 2017 13.3 9.9 8.2 3.6 1.3 0.2 0.0 0.0 0.1 0.9 7.7 14.6 28.0 13.1 0.2 8.7 59.8 2018 13.9 17.2 14.7 5.3 1.2 0.1 0.0 0.1 0.3 3.7 4.4 7.8 45.7 21.2 0.1 8.5 68.7 2019 16.1 8.4 6.4 4.5 4.0 32.3 14.8