_id Month Mean 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 1 Jan Max 19 19.2 18.2 17.9 22.3 19.1 19.4 22.6 22.3 19.6 17.5 18.9 18.6 2 Jan Min 2.7 2 3.1 4.3 2 2.9 3 3.8 3.1 2.4 2.7 1.6 3.9 3 Feb Max 22.7 20.7 22 22 25.2 19.1 21.9 25.8 23.1 23.8 22.8 23.8 20.9 4 Feb Min 5.4 5.4 5.2 5.9 9.1 6.5 3.3 5.9 4.8 5.3 5.2 6.1 5.6 5 March Max 25.2 24.5 27.3 25.8 26.3 24.7 26 27.5 29.2 27 26.6 28.1 25.8 6 March Min 9.3 9 10.7 10.1 8.6 9.3 9.5 8.2 10.9 8.8 8.4 10.1 9.1 7 April Max 27.1 28.6 27.7 28.6 27.8 29.1 29.3 31.4 31.9 28.7 28.7 29.3 29.6 8 April Min 12.8 13.3 13.2 11.6 12.4 13.8 12.5 13.3 14.6 11.9 13 12.4 11.9 9 May Max 27.3 29.7 28.6 29.4 28.4 29.8 29 29.1 30.3 28.9 31.4 30 29.7 10 May Min 16.7 14.5 16.5 14.9 17.3 16.8 15.4 16.1 16.8 16.2 16 17.1 16.4 11 June Max 29.3 28.8 28.8 30.5 29.5 29.6 29.3 30.6 31.1 29.4 31.2 30 30.6 12 June Min 19.6 19.1 19.1 19.2 19.4 19.5 19.6 18.9 19.5 19 20.1 20.1 20 13 July Max 28.5 28.7 27.7 29.1 29.6 28.4 29.3 29.8 29.5 28.6 28.8 29.4 29.6 14 July Min 20.2 20.3 20.2 20.6 20.9 20.6 20.3 20.7 20.6 20.5 20.6 20.4 20.9 15 Aug Miax 29 29.1 29.1 29 29.6 29.2 29.5 29.1 29.2 29.5 29.5 29.6 29.3 16 Aug Min 19.8 20.5 20.6 20.6 20.3 20.5 20.1 20.5 20.5 20 20.2 20.2 20.6 17 Sept Max 28.1 28.5 28.1 29.5 28.3 28.1 29.4 29.3 28.6 28.4 29.4 29.8 28.4 18 Sept Min 18.2 19.4 19.3 19.5 18.9 19.2 18.7 18.6 19.2 19.1 19 18.9 19 19 Oct Max 26.7 27.6 26 26.4 27.2 28 28.4 27.4 28 28.1 27.3 26.6 26.5 20 Oct Min 13.5 14.8 13.1 14 13.7 15.3 13.5 14.4 14.9 14.2 12.7 15.9 13.6 21 Nov Max 23.8 23.6 22.7 23.3 23.8 24.7 25.3 23.9 24.8 22.4 22.5 22.6 21.9 22 Nov Min 8.4 9.3 7.5 8.4 9.2 8.9 8.7 7.8 9.9 9.5 6.5 7.7 10.1 23 Dec Max 19.8 19.6 20.6 21 20.2 20.9 22.2 10.9 20.8 18.9 19.3 18.8 20.2 24 Dec Min 4 4.4 4.5 3.5 5.1 3.8 6 4.1 2.9 4.1 4 4.8 4.8