Neumayer 12Z 700hPa temperature 1983 - - -19.9 -21.0 -20.2 -22.3 -24.8 -23.6 -23.1 -21.5 -20.8 -17.9 1984 -15.4 -18.1 -17.6 -19.4 -21.0 -25.4 -23.7 -22.4 -22.3 -23.8 -20.7 -15.3 1985 -15.3 -16.0 -16.2 -20.0 -23.5 -23.6 -22.7 -20.5 -22.4 -22.8 -22.4 -17.3 1986 -14.9 -15.0 -18.3 -20.3 -22.7 -22.9 -21.6 -24.0 -23.8 -25.2 -17.8 -17.0 1987 -14.9 -16.7 -20.3 -19.2 -23.0 -22.8 -24.3 -23.0 - - - - 1988 -14.6 -18.6 -15.8 -20.0 -22.8 -24.1 -25.9 -23.6 -23.4 -22.2 -17.5 -14.9 1989 -14.8 -17.6 -18.0 -20.6 -21.7 -20.5 -22.9 -26.1 -22.6 -21.1 -18.3 -18.1 1990 - - -17.7 -19.6 -22.1 -21.2 -23.0 -24.3 -24.0 -19.0 -16.5 -15.5 1991 -15.6 -16.1 -20.5 -20.6 -21.7 -22.7 -25.2 -22.5 -24.4 -21.3 -19.3 -16.3 1992 -14.2 -17.1 -19.9 -22.0 -21.1 -23.7 -25.6 -27.6 -24.3 -20.4 -19.0 -15.9 1993 -17.4 -19.6 -19.9 -20.6 -22.1 -23.0 -24.2 -23.0 -25.6 -22.8 -16.9 -17.8 1994 -17.3 -16.3 -18.9 -20.4 -22.2 -22.2 -25.3 -24.3 -20.6 -24.2 -18.1 -16.8 1995 -17.0 -18.5 -17.2 -21.7 -21.9 -20.3 -26.0 -24.3 -23.8 -19.6 -20.7 -16.3 1996 -16.8 -13.9 -17.8 -21.3 -21.7 -25.6 -23.6 -21.4 -21.8 -21.1 -17.1 -17.7 1997 -15.3 -16.4 -18.6 -20.4 -22.4 -22.8 -24.2 -25.2 -26.0 -24.8 -19.3 -16.4 1998 -15.8 -17.1 -20.3 -21.7 -21.8 -22.7 -22.9 -22.8 -24.1 -22.3 -19.6 -16.6 1999 -16.7 -15.4 -18.7 -22.0 -21.9 -23.4 -22.6 -23.5 -24.4 -21.1 -19.3 -19.2 2000 -17.5 -17.5 -20.5 -21.2 -21.0 -24.0 -23.8 -25.2 -25.4 -24.9 -20.2 -19.0 2001 -18.1 -19.7 -21.3 -21.5 -20.9 -23.8 -25.0 -24.0 -23.9 -22.2 -18.5 -16.2 2002 -15.4 -16.5 -18.8 -20.5 -22.4 -24.5 -26.0 -22.5 -24.1 -22.3 -21.4 -17.9 2003 -17.0 -14.9 -19.9 -23.1 -22.8 -25.6 -25.1 -23.3 -22.0 -22.0 - -15.9 2004 -16.2 -19.7 -19.1 -22.9 -23.7 -22.8 -24.1 -26.1 -20.4 -21.5 -20.7 -18.7 2005 -14.7 -18.0 -17.9 -18.9 -24.2 -23.6 -25.1 -22.2 -26.6 -21.8 -20.7 -17.9 2006 -15.1 -19.7 -16.2 -21.1 -24.2 -22.7 -23.5 -25.8 -25.0 -22.0 -17.3 -16.9 2007 -15.1 -18.2 -19.1 -21.5 -22.8 -23.7 -24.7 -24.9 -25.2 -22.2 -17.1 -17.0 2008 -17.6 -18.7 -19.8 -19.7 -21.7 -24.8 -25.2 -26.1 -22.3 -22.6 -19.5 -19.2 2009 -17.4 -18.3 -18.8 -23.0 -21.0 -22.6 -23.0 -24.2 -24.9 -21.4 -20.4 -16.5 2010 -15.1 -18.2 -19.7 -20.9 -20.1 -21.7 -24.8 -22.3 -20.8 -20.1 -18.4 -16.2 2011 -15.8 -18.1 -17.9 -20.4 -21.5 -23.4 -24.2 -26.6 -23.4 -23.4 -21.7 -19.0 2012 -17.7 -17.5 -19.0 -19.8 -22.1 -22.8 -23.9 -25.5 -24.3 -19.6 -18.0 -15.6 2013 -15.6 -17.9 -20.7 -19.7 -21.0 -18.3 -25.1 -23.2 -21.8 -22.7 -21.2 -17.2 2014 -16.5 -17.9 -18.7 -20.2 -20.6 -23.9 -23.1 -24.4 -24.2 -23.6 -22.0 -18.1 2015 -18.8 - -20.8 -19.8 -22.3 -24.8 -24.3 -25.8 -25.1 -21.0 -18.8 -16.3 2016 -16.5 -18.1 -19.1 -19.8 -22.9 -25.4 -24.9 -24.1 -23.1 -22.7 -19.1 -16.7 2017 -16.2 -19.4 -19.9 -21.9 -21.4 -25.4 -26.3 -25.0 -20.9 -18.5 -20.5 -16.0 2018 -17.0 -19.1 -16.1 -19.0 -21.3 -21.7 -26.1 -23.7 -20.5 -23.9 -16.0 -17.4 2019 -17.3 -16.2 -19.0 -19.5 -18.1 -24.6 -25.5 -24.6 -25.5 -20.9 -19.3 -15.8 2020 -16.6 -18.3 -19.8 -19.6 -23.8 -24.0 -27.6 -26.7 -21.8 -23.6 -18.2 -16.5 2021 -16.4 -17.1 -17.5 -22.0 -20.1 -26.6 -25.2 -27.5 -22.5 -21.2 -20.1 -18.1 2022 -15.8 -17.0 -18.4 -20.2 -22.1 -23.1 -23.2 -26.0 -21.8 -22.1 -18.8 -17.5 2023 -15.0 - - - - - - - - - - - 2024 - - - - - - - - - - - -