Neumayer 18Z temperature 1981 - - -11.5 -15.8 -19.1 -22.4 -17.3 -20.5 -23.6 -16.9 -8.4 -3.0 1982 -1.5 -7.1 -14.6 -15.6 -20.8 -28.3 -23.0 -25.1 -19.5 -16.3 -6.5 -2.5 1983 -3.1 -5.2 -11.3 -16.3 -18.0 -23.0 -26.9 -24.7 -19.7 -14.9 -9.7 -3.5 1984 -2.1 -8.2 -12.7 -17.4 -18.7 -26.3 -23.4 -27.6 -21.2 -17.5 -8.9 -3.0 1985 -2.0 -7.2 -8.8 -15.6 -20.4 -19.7 -24.6 -24.6 -20.8 -16.7 -10.9 -3.5 1986 -2.6 -3.7 -11.6 -16.5 -23.3 -25.9 -26.0 -22.1 -21.8 -18.6 -7.1 -3.1 1987 -1.7 -6.6 -9.4 -16.1 -22.1 -23.4 -20.8 -26.9 -26.0 -18.8 -7.2 -3.2 1988 -1.8 -6.0 -7.6 -16.0 -20.0 -15.6 -25.2 -27.4 -24.6 -16.2 -8.1 -3.0 1989 -1.7 -6.2 -11.3 -14.8 -20.8 -21.7 -28.8 -33.9 -23.3 -18.0 -7.7 -2.8 1990 -2.2 -6.4 -10.9 -17.4 -20.0 -25.6 -20.2 -26.7 -26.4 -12.8 -7.0 -2.6 1991 -2.9 -4.9 -13.5 -18.9 -19.8 -17.6 -23.4 -23.4 -22.3 -16.2 -8.8 -1.1 1992 -1.1 -5.7 -9.2 -20.0 -17.1 -19.6 -24.4 -32.2 -24.1 -16.2 -8.5 -2.4 1993 -2.0 -7.3 -14.6 -21.4 -20.7 -21.4 -25.4 -24.5 -22.4 -15.0 -8.4 -3.1 1994 -3.5 -5.8 -13.7 -16.5 -24.4 -21.7 -25.1 -24.3 -20.4 -15.6 -8.7 -3.4 1995 -2.9 -5.2 -10.8 -21.3 -22.0 -23.1 -26.2 -22.1 -25.8 -13.9 -8.0 -2.7 1996 -2.6 -4.6 -11.4 -17.3 -21.4 -27.2 -17.2 -20.2 -15.6 -13.9 -6.7 -2.7 1997 -2.5 -6.7 -12.3 -17.1 -19.9 -19.9 -28.4 -24.2 -20.4 -17.4 -6.6 -2.4 1998 -2.6 -4.9 -13.7 -19.9 -17.0 -19.8 -24.7 -22.0 -22.6 -18.2 -8.7 -2.7 1999 -2.4 -6.0 -11.5 -18.9 -25.5 -25.7 -20.6 -19.1 -21.2 -17.8 -8.5 -4.4 2000 -4.0 -8.9 -14.6 -20.4 -20.4 -23.4 -28.5 -25.7 -23.5 -19.4 -7.8 -3.4 2001 -3.0 -6.6 -12.5 -16.4 -22.2 -18.6 -20.7 -24.6 -23.3 -13.5 -8.5 -2.6 2002 -2.2 -6.9 -10.4 -15.8 -17.2 -18.2 -26.1 -24.1 -25.8 -15.4 -11.2 -3.6 2003 -2.9 -6.0 -12.6 -17.1 -18.3 -21.4 -24.5 -20.7 -25.4 -16.2 -7.0 -2.3 2004 -1.4 -4.4 -13.2 -19.5 -21.9 -24.9 -28.3 -25.1 -22.8 -15.6 -8.9 -1.8 2005 -1.1 -5.4 -10.4 -13.4 -22.5 -20.5 -26.7 -26.2 -26.3 -16.0 -10.6 -2.4 2006 -1.8 -5.8 -12.0 -16.9 -23.8 -25.1 -25.1 -15.8 -20.8 -18.6 -7.1 -3.9 2007 -2.2 -7.9 -10.4 -21.3 -18.4 -22.5 -24.8 -26.9 -24.3 -15.1 -6.6 -3.7 2008 -3.3 -7.4 -10.2 -13.6 -22.6 -25.3 -24.6 -27.6 -26.8 -16.5 -8.6 -3.7 2009 -3.2 -7.9 -13.8 -18.5 -15.3 -18.8 -22.6 -28.1 -23.1 -13.1 -8.4 -3.3 2010 -1.3 -5.0 -11.5 -15.7 -18.5 -27.7 -29.5 -25.2 -22.3 -16.5 -8.4 -3.2 2011 -1.3 -5.0 -15.5 -17.7 -19.4 -25.4 -25.4 -22.1 -23.4 -16.7 -9.0 -3.8 2012 -3.3 -6.3 -12.5 -24.8 -18.4 -21.6 -29.5 -26.1 -19.5 -13.9 -5.5 -2.0 2013 -1.9 -6.2 -13.8 -17.2 -21.1 -20.4 -24.0 -20.8 -22.7 -17.4 -6.2 -2.1 2014 -2.0 -6.9 -12.7 -22.1 -20.6 -24.8 -26.6 -23.1 -23.0 -17.9 -7.6 -3.8 2015 -3.5 -7.5 -13.4 -18.4 -23.5 -23.8 -25.1 -26.3 -23.5 -14.9 -7.4 -3.3 2016 -3.4 -6.7 -12.0 -16.0 -15.9 -28.7 -24.6 -21.0 -21.1 -14.6 -7.0 -2.3 2017 -2.1 -4.7 -14.1 -15.9 -20.8 -27.4 -26.7 -25.6 -19.3 -12.9 -7.0 -2.7 2018 -2.2 -6.1 -9.9 -19.0 -17.8 -19.9 -24.1 -25.2 -20.7 -19.4 -7.7 -2.7 2019 -2.0 -5.9 -15.1 -16.8 -20.4 -26.8 -27.1 -30.1 -24.3 -12.1 -7.0 -2.3 2020 -1.5 -6.3 -12.2 -13.5 -22.5 -23.3 -29.2 -32.5 -19.5 -16.6 -7.2 -3.6 2021 -4.0 -8.8 -7.8 -16.1 -17.8 -28.2 -30.0 -27.7 -20.9 -16.4 -8.3 -3.3 2022 -2.2 -6.7 -13.5 -15.9 -19.1 -21.8 -25.6 -28.0 -22.4 -13.0 -8.6 -3.4 2023 -2.5 -7.0 -10.7 -11.4 -20.2 -20.5 -19.7 -25.7 -17.1 -13.5 -6.4 -2.7 2024 -2.4 -3.9 -12.8 -15.9 - - - - - - - -