Neumayer 12Z temperature 1981 - - -11.7 -15.3 -19.3 -22.2 -17.7 -20.3 -22.6 -16.8 -8.9 -3.4 1982 -1.6 -7.8 -14.0 -16.6 -21.1 -28.6 -22.9 -24.8 -19.5 -16.8 -7.0 -2.8 1983 -3.3 -5.4 -11.4 -16.2 -17.5 -23.8 -27.6 -25.4 -18.8 -14.8 -9.9 -4.7 1984 -2.6 -9.1 -12.4 -17.4 -19.0 -26.1 -22.6 -28.5 -21.5 -17.4 -9.5 -3.6 1985 -2.7 -8.2 -8.8 -16.0 -20.1 -20.0 -24.5 -24.4 -20.8 -17.1 -11.3 -3.8 1986 -3.2 -4.2 -11.3 -15.9 -23.4 -25.7 -26.0 -21.4 -21.8 -18.5 -7.9 -3.9 1987 -2.1 -7.5 -9.6 -15.7 -22.7 -23.4 -20.4 -26.5 -25.5 -19.2 -7.5 -3.7 1988 -2.0 -6.7 -7.6 -16.3 -19.6 -15.5 -25.8 -26.2 -23.8 -16.3 -8.9 -3.4 1989 -2.5 -6.9 -11.4 -14.5 -20.3 -21.5 -29.4 -32.0 -21.5 -19.1 -8.1 -3.6 1990 -2.6 -7.5 -10.6 -17.2 -19.1 -25.4 -19.5 -27.3 -25.8 -12.9 -7.4 -2.8 1991 -3.2 -5.7 -13.9 -18.2 -19.6 -18.0 -23.6 -23.1 -22.5 -16.7 -9.2 -1.5 1992 -1.4 -6.6 -9.2 -21.0 -18.0 -19.2 -25.3 -29.7 -22.6 -15.5 -9.0 -3.3 1993 -2.6 -8.5 -14.8 -20.8 -19.8 -21.3 -25.2 -24.4 -22.2 -15.3 -8.9 -3.4 1994 -4.1 -6.4 -14.3 -16.2 -23.6 -21.2 -24.9 -23.9 -20.7 -15.5 -9.4 -3.4 1995 -3.4 -5.5 -11.4 -21.2 -21.3 -22.8 -26.4 -21.8 -25.4 -14.1 -8.6 -2.9 1996 -3.0 -5.0 -11.7 -16.4 -22.3 -27.2 -17.7 -20.7 -15.4 -14.0 -7.0 -3.2 1997 -3.1 -7.4 -12.8 -16.8 -19.7 -20.0 -27.7 -23.6 -20.1 -17.5 -6.8 -3.1 1998 -3.5 -5.0 -14.0 -19.6 -18.2 -19.3 -24.2 -21.7 -22.1 -18.0 -9.0 -3.3 1999 -3.0 -6.0 -12.1 -18.4 -25.3 -25.3 -21.2 -19.4 -20.9 -18.0 -9.3 -4.8 2000 -4.3 -9.2 -15.5 -20.2 -20.2 -23.9 -29.1 -26.0 -23.9 -19.4 -8.1 -4.0 2001 -3.8 -7.1 -12.4 -16.1 -22.3 -18.6 -20.5 -24.5 -23.0 -13.6 -8.7 -2.7 2002 -2.4 -7.4 -10.6 -14.8 -17.0 -18.1 -26.7 -24.0 -25.1 -15.3 -11.0 -4.0 2003 -3.9 -6.0 -11.8 -16.6 -18.1 -22.2 -24.0 -20.7 -24.7 -16.1 -7.7 -2.6 2004 -1.8 -5.1 -13.7 -19.0 -22.1 -26.4 -29.0 -24.5 -23.1 -15.6 -9.6 -2.5 2005 -1.3 -6.4 -10.4 -13.2 -22.9 -20.8 -26.4 -26.4 -25.6 -16.5 -10.4 -2.8 2006 -2.3 -6.1 -13.2 -16.3 -23.4 -25.4 -24.8 -16.1 -20.7 -18.7 -7.3 -4.2 2007 -2.8 -8.2 -10.4 -20.9 -17.5 -22.2 -24.3 -26.7 -24.4 -14.7 -6.6 -4.3 2008 -4.1 -8.1 -10.5 -13.7 -21.6 -25.2 -23.6 -26.6 -26.3 -16.4 -9.1 -4.3 2009 -3.4 -8.6 -13.7 -18.2 -16.2 -19.4 -22.7 -27.2 -23.1 -13.2 -8.6 -3.8 2010 -1.3 -5.3 -11.5 -15.3 -18.7 -27.7 -29.1 -24.9 -21.9 -17.0 -8.8 -3.6 2011 -1.9 -4.9 -15.1 -17.7 -18.8 -25.8 -25.4 -21.7 -23.6 -16.6 -9.3 -4.3 2012 -4.1 -6.4 -12.4 -24.7 -18.1 -21.7 -30.0 -25.6 -19.5 -13.6 -5.6 -2.4 2013 -2.6 -6.8 -13.6 -17.7 -20.9 -20.6 -24.7 -21.6 -22.0 -17.5 -6.5 -2.6 2014 -2.5 -8.0 -12.2 -21.9 -20.0 -24.4 -26.2 -23.2 -23.4 -17.9 -7.8 -4.3 2015 -4.2 -7.6 -13.3 -18.6 -23.8 -23.9 -25.6 -25.8 -23.0 -14.4 -7.4 -3.7 2016 -4.2 -7.2 -11.8 -16.0 -15.0 -27.9 -24.9 -20.9 -21.0 -14.3 -7.4 -2.8 2017 -2.9 -5.2 -14.5 -15.8 -21.3 -27.0 -26.6 -26.4 -19.8 -12.8 -7.3 -3.3 2018 -3.3 -6.9 -9.9 -18.7 -18.0 -19.8 -24.4 -25.8 -20.9 -19.6 -7.9 -3.2 2019 -2.6 -6.6 -15.7 -16.4 -20.7 -26.2 -27.4 -29.3 -24.3 -12.5 -7.7 -2.6 2020 -1.9 -6.8 -12.2 -13.3 -22.8 -23.7 -29.0 -32.6 -18.9 -16.6 -7.8 -4.0 2021 -4.8 -9.8 -8.1 -15.5 -18.0 -28.0 -28.9 -28.2 -20.6 -16.4 -8.4 -3.9 2022 -2.5 -7.1 -13.1 -14.9 -18.4 -20.9 -25.7 -27.4 -21.8 -12.9 -8.8 -4.0 2023 -2.9 -7.4 -10.7 -11.3 -21.3 -20.8 -19.7 -25.9 -17.1 -13.9 -6.7 -3.0 2024 -3.2 -4.4 -12.9 -15.4 - - - - - - - -