D_10 06Z temperature 1980 - - - - - - - -17.6 - - - - 1981 - - - - - - - - - - - - 1982 - - -11.5 -17.1 -13.4 -14.0 -16.9 -24.7 -18.2 - - - 1983 -0.8 -4.1 -11.3 -15.2 -15.5 -14.8 -22.7 -20.4 -14.8 -16.2 -7.3 - 1984 - -4.1 -7.7 -15.4 -14.0 -20.3 -20.5 -15.1 -14.7 -11.0 - - 1985 - -4.6 -10.0 - - -18.2 - -16.6 -18.1 -13.6 -5.9 -1.2 1986 -0.3 -3.0 -7.5 - -19.1 -18.3 -19.5 -16.0 - - -5.5 -1.1 1987 -0.2 -4.0 -10.5 -15.3 -19.4 -14.1 -18.6 -21.1 -16.1 - - -1.6 1988 -1.5 -4.8 -12.1 -13.9 -17.8 -19.3 -19.3 -20.3 -15.0 -11.4 -6.1 -2.0 1989 -0.9 -5.6 -11.9 -14.2 -17.6 -23.5 -17.3 -18.5 -13.2 -10.6 -7.3 0.3 1990 0.0 -5.5 -11.7 - -17.5 -20.6 -12.6 -19.7 -17.3 - - - 1991 - - -8.8 -12.0 -17.9 -13.4 -19.7 -13.6 -15.6 -11.3 -4.8 0.7 1992 -0.4 - -7.7 -13.5 -18.1 -14.7 -16.8 -12.1 -17.5 -13.7 -4.9 -1.2 1993 0.7 -2.7 - - - - - - -15.3 -12.4 -5.4 -0.7 1994 -0.5 -4.7 -10.8 -15.0 -21.6 - - - -13.7 -10.8 -5.1 -0.8 1995 -0.3 -4.0 -8.4 -11.7 -17.5 - - - - - - - 1996 - - - - - - - - - - - - 1997 - - - - - - - - - - - - 1998 - -3.1 -11.4 -15.6 -17.7 -19.0 - - -17.0 - - - 1999 -2.5 -5.9 -12.3 -17.6 -20.8 - - - -17.2 -12.1 -5.8 -2.9 2000 -3.3 -6.1 -10.8 -19.1 -17.2 -18.2 - -16.7 - - - -2.1 2001 -1.5 -6.1 -9.7 -15.9 -16.5 -18.8 - - - -12.0 - - 2002 -0.8 - - - -16.2 -14.8 - -18.7 -15.8 -12.6 - -0.7 2003 -2.0 - - - - - - -18.1 -15.2 -13.5 - - 2004 - -4.1 -10.2 - - -14.4 - - - - - - 2005 - - - - - - - - -14.9 -10.1 - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - -11.7 -15.3 -16.6 -21.1 -20.8 -16.8 -16.8 - - - 2009 0.2 -3.2 -11.0 -17.4 -17.2 -18.2 -14.1 -17.0 -14.5 -12.1 -4.6 0.1 2010 1.2 -5.1 -10.2 -17.7 -18.8 -20.4 -21.8 -19.3 -20.0 -12.3 -5.2 0.3 2011 -0.1 -5.0 -10.2 -14.3 -19.7 -18.8 -20.4 -18.8 -15.8 -12.6 -6.1 - 2012 -0.6 - -10.9 -17.6 -17.4 -18.3 -21.5 -17.2 -18.2 -13.0 -5.0 -1.5 2013 -0.2 -5.4 -12.1 -19.2 -18.5 -19.8 -23.0 -18.6 -13.1 -11.9 - - 2014 - -5.4 -11.7 - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - -5.7 -10.8 -11.2 -19.5 -21.3 -17.6 -18.7 -18.4 -13.9 -7.0 - 2019 -2.1 -5.6 -12.2 -18.4 -22.8 -23.0 -18.1 -20.8 -19.6 -14.8 - - 2020 -2.2 -5.5 -12.4 -12.5 -17.9 -20.0 -15.9 -20.1 -16.9 -14.0 -7.7 -1.6 2021 -2.3 -6.3 -11.8 -18.0 -20.3 -19.0 -20.6 -14.9 -16.3 -11.4 - -3.6 2022 -2.3 -4.3 -9.7 -15.9 -17.2 -18.0 -18.1 -20.1 -15.5 -10.8 -8.8 -3.2 2023 -3.3 -4.9 -9.3 -12.9 -18.5 -17.8 -18.9 - - - - - 2024 - - - - - - - - - - - -