Scotland_E 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 17.2 6.7 3.5 4.7 1.7 0.3 0.0 0.0 0.1 0.6 9.8 22.2 --- 9.9 0.3 10.5 66.8 1962 12.7 13.2 20.1 9.6 1.3 0.4 0.0 0.1 0.2 2.4 12.6 17.4 48.1 31.0 0.6 15.2 90.1 1963 25.7 25.9 9.9 5.6 1.4 0.0 0.0 0.1 0.3 0.8 9.2 15.1 69.0 17.0 0.1 10.3 94.0 1964 11.8 12.7 12.1 3.3 0.1 0.6 0.1 0.4 0.7 3.9 9.5 19.4 39.6 15.4 1.1 14.1 74.5 1965 20.1 15.3 18.1 7.7 1.5 0.2 0.1 0.1 0.2 2.7 17.4 18.7 54.8 27.3 0.4 20.4 102.2 1966 17.8 16.7 9.0 13.3 1.7 0.1 0.0 0.3 0.1 3.9 13.1 15.9 53.2 24.0 0.4 17.1 91.8 1967 13.5 9.8 8.3 7.7 3.3 0.2 0.0 0.1 0.1 2.2 10.0 15.0 39.2 19.3 0.2 12.3 70.1 1968 17.0 25.1 12.4 11.6 5.0 0.1 0.1 0.0 0.2 0.8 8.3 17.7 57.1 29.0 0.2 9.3 98.3 1969 12.8 23.6 22.8 11.6 1.4 0.2 0.0 0.1 0.3 0.3 20.5 18.5 54.1 35.7 0.3 21.1 112.1 1970 15.3 21.4 19.4 15.1 0.2 0.1 0.0 0.0 0.3 1.3 8.3 12.4 55.2 34.7 0.1 9.9 93.8 1971 12.4 10.9 13.7 7.2 2.3 0.1 0.0 0.0 0.7 4.7 14.3 5.9 35.6 23.3 0.2 19.7 72.3 1972 12.7 12.5 11.7 3.3 0.8 0.2 0.0 0.0 2.4 1.8 12.5 12.8 31.1 15.8 0.2 16.7 70.7 1973 13.2 15.7 12.4 10.0 2.3 0.3 0.1 0.2 0.3 5.4 13.2 15.4 41.7 24.7 0.5 19.0 88.5 1974 9.3 9.8 11.0 11.7 1.9 0.1 0.0 0.1 1.9 2.9 7.3 7.1 34.5 24.6 0.2 12.1 63.1 1975 14.1 13.6 17.8 8.4 3.9 0.9 0.0 0.0 1.4 2.2 9.3 10.1 34.8 30.2 0.9 12.9 81.8 1976 14.6 12.0 13.7 6.3 0.3 0.1 0.0 0.0 0.2 1.5 10.0 23.8 36.7 20.3 0.1 11.6 82.5 1977 20.2 16.3 7.3 8.9 4.3 0.3 0.0 0.3 0.6 0.3 11.7 8.6 60.3 20.4 0.6 12.6 78.8 1978 22.8 20.6 9.7 10.5 1.9 0.3 0.0 0.0 0.2 0.3 7.3 14.2 51.9 22.0 0.3 7.8 87.7 1979 27.4 23.6 20.3 7.4 7.3 0.1 0.0 0.0 1.3 1.3 10.3 14.5 65.2 35.0 0.1 13.0 113.6 1980 19.1 10.9 16.2 5.0 3.5 0.2 0.0 0.0 0.0 4.9 9.8 12.6 44.6 24.8 0.3 14.8 82.5 1981 19.3 18.9 10.4 11.5 2.6 0.3 0.0 0.1 0.2 7.9 6.8 25.4 50.8 24.5 0.4 14.8 103.2 1982 16.1 10.8 11.3 5.4 5.1 0.2 0.0 0.1 0.5 1.7 7.8 17.5 52.3 21.8 0.3 10.1 76.7 1983 10.2 21.3 8.8 13.0 0.8 0.2 0.0 0.0 0.6 3.6 8.7 9.6 48.9 22.6 0.3 12.9 76.9 1984 24.7 13.8 13.6 9.2 4.7 0.1 0.0 0.0 0.4 1.2 3.4 8.7 48.1 27.5 0.1 5.0 79.8 1985 23.2 17.0 16.7 5.8 1.7 0.3 0.0 0.0 0.0 2.6 19.5 11.1 48.9 24.2 0.4 22.1 97.9 1986 19.8 24.3 12.2 11.9 0.3 0.2 0.0 0.2 2.6 1.1 6.8 12.7 55.3 24.4 0.4 10.5 92.2 1987 22.1 16.6 19.2 3.1 1.8 0.3 0.0 0.0 0.8 4.9 5.8 11.8 51.5 24.1 0.3 11.4 86.3 1988 14.5 12.8 13.3 7.6 0.9 0.1 0.0 0.0 0.4 3.3 8.7 2.8 39.1 21.8 0.1 12.4 64.4 1989 3.9 10.9 10.9 10.3 1.2 0.5 0.0 0.1 0.5 0.6 7.3 17.8 17.5 22.4 0.5 8.4 63.8 1990 8.0 7.6 4.2 7.3 0.9 0.0 0.0 0.0 0.3 0.9 7.4 15.0 33.4 12.5 0.0 8.6 51.7 1991 21.3 19.4 8.5 5.9 1.4 0.7 0.0 0.0 0.9 1.2 8.8 13.1 55.7 15.8 0.7 10.9 81.2 1992 16.9 10.9 6.3 4.0 1.2 0.0 0.0 0.0 0.1 8.8 9.8 16.2 40.9 11.4 0.1 18.7 74.2 1993 12.1 7.3 10.4 2.8 1.8 0.1 0.0 0.0 2.0 7.3 15.9 19.7 35.6 15.0 0.2 25.2 79.5 1994 15.6 17.9 8.6 8.3 3.9 0.0 0.0 0.1 0.1 2.8 2.8 10.7 53.2 20.8 0.1 5.7 70.8 1995 19.4 11.9 19.0 6.9 6.0 0.1 0.0 0.0 0.7 1.1 6.8 18.3 42.0 31.9 0.1 8.6 90.3 1996 8.2 19.3 12.8 5.1 5.7 0.2 0.0 0.0 0.2 0.7 16.8 17.5 45.8 23.6 0.2 17.7 86.4 1997 20.0 9.3 5.7 5.2 4.1 0.3 0.0 0.0 0.7 5.0 2.7 9.1 46.8 15.0 0.3 8.4 62.0 1998 13.9 4.7 10.4 9.2 1.0 0.5 0.0 0.0 0.1 4.1 11.8 12.4 27.7 20.6 0.5 16.0 68.2 1999 11.4 14.1 8.6 6.1 0.7 0.2 0.0 0.3 0.1 1.4 6.4 18.2 37.9 15.4 0.5 7.9 67.3 2000 11.0 11.0 7.8 8.3 1.3 0.3 0.1 0.0 0.1 1.7 7.1 12.6 40.1 17.4 0.4 8.9 61.3 2001 18.4 18.7 16.7 7.0 2.6 0.3 0.0 0.0 0.1 0.1 7.2 19.4 49.7 26.3 0.3 7.4 90.6 2002 11.5 10.4 8.9 5.5 1.1 0.0 0.0 0.0 0.2 5.5 3.5 8.2 41.3 15.5 0.0 9.2 54.8 2003 14.9 17.0 10.5 4.5 0.3 0.0 0.0 0.0 0.4 5.6 5.1 14.3 40.1 15.3 0.0 11.2 72.7 2004 13.3 15.7 9.3 2.2 1.1 0.1 0.0 0.0 0.2 0.9 6.6 13.2 43.3 12.6 0.1 7.7 62.5 2005 8.8 12.4 8.6 4.7 3.0 0.3 0.0 0.0 0.1 0.5 11.1 11.8 34.3 16.3 0.3 11.7 61.2 2006 11.4 13.3 17.2 7.4 1.9 0.1 0.0 0.0 0.1 0.3 4.2 10.6 36.5 26.4 0.1 4.5 66.4 2007 8.7 9.9 8.9 2.7 1.6 0.2 0.0 0.0 0.9 1.9 5.1 15.7 29.2 13.2 0.2 8.0 55.7 2008 13.6 12.1 13.1 8.3 1.1 0.2 0.0 0.0 0.1 4.8 9.8 16.5 41.3 22.4 0.2 14.7 79.6 2009 19.0 13.8 8.9 3.7 1.5 0.4 0.0 0.0 0.1 1.4 5.0 22.0 49.2 14.0 0.4 6.5 75.7 2010 20.6 21.5 13.2 6.3 4.8 0.1 0.0 0.0 0.5 2.9 14.2 24.6 64.1 24.2 0.1 17.6 108.7 2011 19.1 9.9 11.3 2.1 2.0 0.2 0.0 0.0 0.1 0.7 2.4 15.1 53.6 15.5 0.2 3.1 62.9 2012 13.0 10.9 5.8 9.1 4.5 0.5 0.0 0.2 0.9 6.5 9.7 14.4 39.1 19.5 0.7 17.2 75.7 2013 15.7 18.3 22.9 10.6 2.6 0.1 0.0 0.0 0.3 1.1 13.1 7.7 48.5 36.1 0.1 14.5 92.5 2014 10.0 7.1 7.6 3.4 1.1 0.1 0.0 0.2 0.1 1.0 2.9 15.7 24.9 12.1 0.2 4.0 49.2 2015 16.8 14.8 10.7 7.6 3.1 0.3 0.0 0.0 0.1 2.0 4.8 6.7 47.3 21.4 0.4 6.9 67.0 2016 15.4 17.6 11.7 9.3 1.1 0.0 0.0 0.1 0.1 1.7 14.0 6.3 39.7 22.0 0.1 15.8 77.3 2017 16.3 10.1 10.0 4.7 1.6 0.1 0.0 0.0 0.2 1.1 10.4 17.1 32.6 16.3 0.2 11.7 71.7 2018 15.2 19.5 17.2 5.7 1.8 0.1 0.0 0.1 0.5 4.6 4.0 9.9 51.8 24.7 0.1 9.2 78.6 2019 17.9 10.4 7.8 5.4 3.3 38.2 16.5