"Figure 12.1: Average figures mask the variation in temperature across the year ","" "","" "","" "Notes","" "Unit","Degrees Celsius" "","" "","Annual","Spring","Summer","Autumn","Winter" "1990","9.4","8.6","14.6","9.4","5.0" "1991","8.6","7.9","14.2","9.3","2.6" "1992","8.7","8.5","14.3","8.2","4.3" "1993","8.4","7.9","13.4","7.6","4.2" "1994","8.9","7.4","14.4","9.8","3.4" "1995","9.2","7.3","15.7","10.3","4.6" "1996","8.2","6.4","14.2","9.2","2.5" "1997","9.4","8.4","15.1","9.9","3.2" "1998","9.1","8.3","13.7","9.2","5.4" "1999","9.4","8.6","14.4","10.3","4.5" "2000","9.1","8.1","14.1","9.5","4.3" "2001","8.8","7.4","14.4","10.4","3.5" "2002","9.5","8.5","14.4","9.8","4.5" "2003","9.5","8.8","15.8","9.5","4.0" "2004","9.5","8.4","14.9","10.0","4.4" "2005","9.5","8.1","14.8","10.4","4.7" "2006","9.7","7.4","15.8","11.4","3.9" "2007","9.6","9.1","14.1","9.9","5.6" "2008","9.1","8.1","14.5","9.1","4.9" "2009","9.2","8.6","14.8","10.3","3.2" "2010","8.0","7.6","14.7","8.9","1.6" "2011","9.6","9.2","13.7","11.3","2.4" "2012","8.8","8.2","13.9","8.6","4.6" "2013","8.8","6.0","15.2","9.8","3.3" "2014","9.9","9.1","14.8","10.9","5.2" "2015","9.2","7.7","13.9","10.0","3.9" "2016","9.3","7.7","14.9","9.8","5.5" "2017","9.6","9.2","14.7","9.9","5.0"