Theresa 06Z temperature 1994 - - - - - - - - - - - -12.5 1995 -13.4 -15.5 -24.9 - -27.9 -27.0 -31.3 -31.9 -29.5 -24.3 - - 1996 - -18.2 -23.9 -20.3 - - - - - - -15.5 -11.3 1997 -12.5 -19.8 -25.7 -26.8 - - - - -29.8 -22.5 -17.1 -11.9 1998 -12.4 -14.7 -25.2 -30.5 -24.4 -21.2 -30.0 -28.1 -31.5 -26.3 -20.6 -12.7 1999 -11.5 -18.2 -21.9 -31.2 -28.0 -26.9 -26.4 -30.2 -25.6 -21.1 -17.2 -14.6 2000 -14.8 -16.6 -20.6 -27.2 -27.4 - - - - -23.0 -18.0 -14.1 2001 -14.7 -15.0 -23.1 -24.7 -25.9 -26.9 -29.1 -33.3 -25.3 -26.9 -17.5 -12.7 2002 -11.0 -18.8 -23.0 -26.7 -26.5 -33.1 - - - - - - 2003 - - - - -25.9 -28.9 - - - - -21.0 -12.0 2004 -12.7 -19.5 -26.9 - - -27.7 -37.1 -33.5 -28.0 -23.3 -19.3 -12.3 2005 -10.4 -19.1 -24.1 -26.3 -27.1 -29.4 -29.5 -31.5 -24.6 -23.5 -18.3 -11.7 2006 -11.8 -14.8 -23.0 - -30.3 -26.9 -31.1 -25.3 -28.7 -22.9 -17.0 -13.9 2007 -10.2 -18.2 -23.1 -24.8 -23.7 -27.3 -29.3 - - - - - 2008 - -18.9 -19.9 -23.5 -27.4 -25.7 -29.2 -34.7 -25.4 -23.4 -19.9 -13.6 2009 -12.9 -20.2 -22.9 -24.6 -26.4 -27.2 - - -28.1 -26.1 -17.0 -11.5 2010 -11.2 -17.9 -22.9 -23.9 -26.4 -27.4 -32.4 -26.1 -29.4 -23.1 -17.8 -11.9 2011 -12.0 -18.4 -23.7 -26.2 -25.2 -26.7 -23.2 -24.4 -30.9 -22.2 -15.5 -12.1 2012 -14.1 -16.4 -22.2 -23.7 -25.4 -29.8 -27.8 -29.2 -28.6 -24.1 -18.8 -10.0 2013 -10.6 -18.6 -17.7 -26.6 -28.5 -28.9 -30.7 -25.7 -27.1 -24.0 -18.6 -11.3 2014 -12.5 -20.0 -24.4 -25.4 -21.1 -27.2 -31.1 -27.2 -22.6 -23.5 -18.9 -13.6 2015 -11.5 -15.6 -24.4 -28.4 -26.9 -28.9 -30.5 -32.7 -31.6 - - - 2016 - -18.3 -23.8 -29.0 -26.4 -27.6 -29.9 -26.6 -29.5 -23.0 -16.7 -10.6 2017 -12.8 -14.9 -19.8 -22.4 -23.1 -28.0 -30.2 -29.3 -30.0 -22.6 -17.8 -12.2 2018 -12.3 -19.3 -20.0 -23.2 -28.6 -26.9 -28.5 -26.6 -31.1 -21.4 -17.7 -10.2 2019 -12.7 -16.4 -22.9 -23.9 -23.6 -27.7 -28.8 -28.0 -26.8 -25.3 -15.8 -11.0 2020 -11.8 -14.6 -25.3 -24.1 -23.4 -26.3 -27.3 -29.7 -29.1 -24.9 -18.5 -11.9 2021 -13.3 -18.6 -22.3 -32.6 -27.9 -25.5 -24.2 -33.7 -27.6 -24.3 -17.4 -12.7 2022 -12.2 -15.4 -20.8 -25.0 -23.3 - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -