LGB20 temperature 1991 - -31.5 -41.4 -47.3 -52.4 -45.6 -43.7 -47.7 -50.8 -45.4 -33.4 -22.8 1992 -25.3 -31.0 -42.3 -47.3 -50.0 -48.8 -51.6 - -52.4 -44.3 -32.2 -27.4 1993 -23.5 -33.6 -42.7 -48.9 -50.8 -52.2 -52.0 -51.9 -51.5 -43.7 -34.2 -25.9 1994 -25.2 -34.2 -45.8 -48.3 -52.8 -43.7 -47.7 -52.2 -48.0 -42.2 -34.0 -25.8 1995 -28.2 -34.1 -42.3 -46.6 -52.5 -51.1 -42.5 -52.2 -51.6 -43.6 -32.3 -24.7 1996 - -32.2 -42.8 -47.3 -54.5 -50.8 -48.4 -44.4 -45.3 -44.1 -31.8 -24.7 1997 -25.9 -32.6 -41.9 -48.7 -52.6 -48.5 -53.7 -52.4 -50.3 - -30.7 -22.3 1998 -26.4 -32.8 -43.2 -50.7 -48.3 - -51.2 -48.8 -50.2 - -31.6 -25.1 1999 -25.9 - - -52.4 -51.3 -45.1 -52.7 -48.7 -49.2 -45.0 -33.8 -27.4 2000 - -35.9 - - - -47.6 -51.2 -50.3 - -46.1 - - 2001 - -32.7 -42.6 -48.4 -48.9 -47.7 - - - - - -24.4 2002 - -35.0 -43.1 - -44.5 -47.3 -48.6 -52.5 - -42.5 -34.7 -25.7 2003 -24.1 - -43.0 - -51.4 -50.0 -51.8 - -49.5 -45.6 -32.6 -23.0 2004 -23.0 - -43.2 -47.7 -52.7 -51.0 -56.0 -52.7 - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -