Harry 00Z temperature 1994 - - - - - - - - - - - -7.0 1995 -8.7 -12.6 -24.9 -27.8 -30.8 -25.0 -31.9 -30.6 -28.6 -23.7 -15.4 -7.9 1996 -8.0 -14.8 -24.5 -19.5 - -26.8 - - - - -13.4 - 1997 - - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - -16.9 -23.1 -31.2 -29.6 -30.1 -28.0 -33.0 -24.6 -20.1 -13.6 -10.1 2000 -12.1 -15.2 -20.1 -28.8 -29.0 -26.8 -27.2 -30.3 -29.7 -22.6 -13.2 -11.2 2001 -12.4 -13.5 -23.5 -24.2 -27.8 -25.7 -29.2 -38.8 -29.0 -25.7 -15.7 -10.4 2002 -9.1 -15.5 -20.8 -27.8 -25.5 -33.6 -33.5 -34.1 -21.1 -22.3 -13.3 -9.9 2003 -7.9 -15.4 -22.2 -26.0 -27.3 -29.4 -30.1 -33.2 -32.2 -21.5 -17.8 -9.9 2004 -10.9 -18.1 -27.3 -24.8 -31.8 -28.5 -39.9 -37.8 -33.2 -25.1 -14.9 -9.6 2005 -6.9 -16.6 -24.7 -30.7 -27.0 -28.0 -27.2 -34.3 -24.4 -21.8 -14.1 -8.1 2006 -9.2 -12.9 -24.2 -31.6 -34.0 -26.2 -31.9 -25.2 -28.9 -23.0 -14.1 -11.0 2007 -6.8 -16.2 -21.6 -23.6 -24.8 - - - - -27.8 -15.5 -10.0 2008 -8.9 -17.4 -19.9 -25.3 -29.3 -26.8 -32.4 -38.4 -25.2 -21.3 -17.9 -11.2 2009 -10.2 -18.8 -22.7 -25.3 -29.0 -31.0 -27.2 -31.3 -32.5 -25.7 -13.0 -8.7 2010 -9.4 -14.1 -22.4 -26.2 -30.7 -30.8 -34.8 -28.4 -29.8 -22.6 -16.0 -9.0 2011 -10.2 -16.1 -22.9 -27.0 -26.4 -28.8 -21.9 -26.3 -33.3 -20.5 -12.6 -8.9 2012 -10.4 -13.6 -21.4 -25.1 -24.5 -32.4 -31.5 -32.1 -29.4 -22.3 -16.2 -6.5 2013 -7.1 -15.7 -18.9 -32.1 -28.8 -34.2 -33.0 -29.5 -29.8 -22.5 -16.4 -8.4 2014 -9.0 -15.9 -23.6 -28.6 -22.2 -29.1 -35.0 -25.6 -22.8 - - - 2015 - - - - - - - - - - - - 2016 - -16.2 -25.0 -28.8 -26.4 -31.8 -31.3 -29.9 -31.5 -21.7 -15.8 -8.8 2017 -12.0 -13.9 -20.8 -20.7 -22.9 -28.5 -32.4 -29.8 -34.7 -21.1 -16.9 -10.1 2018 -10.0 -16.1 -20.4 -24.5 -29.7 -30.4 -28.3 -32.0 -31.1 -19.1 -14.6 -8.6 2019 -9.5 -14.6 -22.5 -26.7 -26.6 -27.1 -29.0 -27.6 -26.6 -22.7 -15.4 -9.7 2020 -10.7 -11.9 -25.1 -25.9 -23.5 -29.0 -29.3 -30.2 -29.0 -23.0 -17.6 -10.5 2021 -10.6 -16.3 -23.9 -33.3 -28.8 -24.9 -26.2 -36.0 -29.5 -22.7 -14.7 -10.4 2022 -9.9 -13.5 -20.6 -24.7 -24.0 -27.8 -26.2 -28.1 -28.0 -25.1 -18.5 -9.7 2023 -10.9 -13.9 -23.1 -27.2 -28.9 -29.3 -30.1 -39.4 -22.3 -26.5 -16.5 -10.4 2024 -10.8 -18.2 -20.4 -27.3 -25.4 -23.6 -31.8 -27.9 -32.0 -21.8 -18.6 -