Neumayer 12Z 50hPa temperature 1983 - - -49.5 -58.0 -68.2 - - - -75.2 -68.7 -45.3 -37.1 1984 -38.4 -41.7 - - - - - - - - - - 1985 - - -51.0 -58.0 -69.9 - - - -75.7 -70.3 -54.5 -37.1 1986 -38.6 -41.3 -48.5 -58.5 -67.6 - - - -76.3 -59.7 -47.9 -35.4 1987 -37.0 -41.3 -47.8 -58.8 -68.9 - - - - - - - 1988 -37.1 -40.9 -49.8 -58.3 -69.1 - - -70.1 -72.2 -62.4 -42.2 -36.0 1989 -37.8 -40.1 -49.1 -60.8 -69.8 - - -81.4 -77.2 -72.3 -45.7 -35.8 1990 - - -49.1 -61.8 -71.6 -82.8 -85.3 -83.3 -82.8 - -53.2 -42.7 1991 -39.5 -42.7 -50.7 -61.9 -72.8 -79.7 -82.7 -84.5 -81.1 -67.8 -44.5 -37.9 1992 -39.8 -42.5 -50.0 -60.3 -72.3 -80.4 -83.1 -84.0 -81.9 -69.8 -47.9 -38.1 1993 -38.8 -41.8 -49.9 -61.4 -71.5 -81.4 -84.6 -84.5 -79.2 -76.4 -58.0 -36.2 1994 -39.2 -43.7 -52.1 -59.2 -71.7 -79.8 -85.6 -86.1 -83.8 -73.9 -52.0 -36.0 1995 -39.2 -43.0 -51.7 -61.4 -71.3 -81.4 -86.3 -84.8 -81.2 -78.4 -59.6 -42.3 1996 -39.7 -44.8 -51.7 -61.9 -74.2 -82.0 -84.6 -84.8 -84.4 -76.7 -62.9 -42.3 1997 -39.9 -43.8 -52.8 -62.0 -70.8 -81.5 -84.2 -82.8 -79.3 -79.1 -55.5 -40.0 1998 -40.7 -44.4 -51.4 -61.3 -72.6 -80.7 -86.4 -86.4 -84.4 -76.1 -58.9 -43.4 1999 -40.7 -45.4 -52.1 -62.3 -68.8 -80.6 -85.6 -85.5 -80.3 -78.0 -63.8 -43.7 2000 -39.0 -44.0 -52.9 -60.1 -69.9 -81.1 -86.4 -84.8 -80.7 -75.0 -45.6 -38.6 2001 -39.1 -44.6 -51.6 -61.5 -73.9 -82.4 -85.0 -86.2 -83.0 -78.4 -54.3 -40.0 2002 -40.0 -43.6 -51.3 -59.3 -70.6 -77.8 -82.4 -86.8 -73.9 -56.2 -41.1 -40.2 2003 -40.9 -44.4 -51.9 -62.0 -73.3 -81.6 -86.7 -86.1 -84.6 -73.1 - -39.4 2004 -40.4 -43.1 -51.3 -60.4 -73.2 -80.8 -84.1 -84.7 -80.2 -68.2 -49.6 -38.0 2005 -40.1 -43.1 -50.8 -61.9 -72.5 -82.0 -84.8 -85.0 -83.9 -74.8 -47.0 -38.5 2006 -41.1 -44.5 -51.4 -61.1 -71.8 -79.9 -82.9 -85.6 -84.5 -79.6 -64.3 -39.8 2007 -39.1 -43.2 -49.9 -61.6 -71.8 -80.9 -86.0 -83.2 -85.7 -74.2 -54.9 -41.0 2008 -39.1 -43.7 -51.2 -60.7 -72.4 -79.1 -85.3 -85.7 -84.0 -73.8 -56.9 -42.2 2009 -39.5 -44.5 -51.5 -60.8 -70.4 -79.3 -82.9 -86.3 -82.5 -73.5 -48.7 -36.8 2010 -39.5 -43.0 -52.4 -59.5 -73.0 -81.3 -84.5 -83.2 -81.5 -72.6 -53.4 -41.2 2011 -40.7 -44.3 -52.0 -61.4 -71.3 -80.1 -87.0 -85.0 -83.4 -75.3 -62.4 -40.6 2012 -37.5 -43.7 -51.2 -61.2 -72.7 -81.5 -84.0 -84.6 -82.6 -68.1 -42.7 -39.2 2013 -40.3 -43.7 -51.2 -62.5 -72.3 -79.4 -84.5 -86.9 -81.3 -70.0 -39.0 -38.7 2014 -39.8 -42.7 -52.4 -61.4 -73.3 -80.9 -86.0 -86.0 -83.4 -75.5 -55.6 -38.7 2015 -38.9 - -52.5 -61.9 -75.0 -80.3 -85.3 -85.8 -82.1 -79.3 -60.0 -40.6 2016 -38.6 -43.7 -51.6 -63.4 -74.4 -79.5 -86.4 -85.0 -81.9 -73.6 -50.4 -38.4 2017 -40.0 -42.9 -52.8 -61.3 -73.1 -82.9 -85.2 -85.8 -77.8 -73.6 -46.6 -39.6 2018 -39.8 -43.6 -52.7 -61.7 -75.3 -80.7 -85.9 -85.9 -82.7 -78.2 -58.7 -39.4 2019 -39.8 -44.4 -51.1 -62.5 -72.5 -81.1 -85.2 -86.5 -75.8 -69.5 -46.7 -40.8 2020 -40.3 -43.3 -51.8 -63.3 -73.6 -81.5 - -84.9 -80.7 -79.3 -64.3 -47.5 2021 -38.6 -43.8 -50.7 -63.0 - -81.8 -87.1 -85.8 -84.3 -79.4 -64.3 -42.2 2022 -39.6 -44.5 -52.1 -62.0 -73.0 -83.5 -86.7 -85.8 -82.9 -79.6 -59.1 -43.2 2023 -40.1 - - - - - - - - - - - 2024 - - - - - - - - - - - -