Rothera 12Z 850hPa temperature 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - -10.6 - - - - - - - - 2002 - - - -7.5 -12.8 - - - - - - - 2003 - - - -5.6 -12.1 -13.7 -12.5 -9.8 -11.6 -9.2 -11.1 -10.8 2004 -7.0 -6.0 -6.6 -7.2 -9.1 -8.8 -13.0 -15.5 -14.3 -10.3 -9.2 -6.9 2005 -6.3 -6.2 -8.1 -8.5 -8.5 -12.8 -11.0 - -8.2 - -7.3 -10.3 2006 -5.5 -4.5 -5.8 -8.9 -10.3 -10.2 -12.9 -11.5 -14.6 -7.8 -9.8 -6.7 2007 -4.8 -7.1 -9.2 -10.4 - - - - -11.6 -12.8 -9.5 -6.6 2008 -6.5 -5.9 -6.8 -10.0 -8.7 -8.7 -11.1 -13.8 -7.6 -9.9 -9.0 -8.1 2009 -6.0 -6.2 -6.7 -10.4 -8.5 -11.3 -13.0 -11.6 -11.4 -12.7 -10.9 -7.6 2010 -7.0 -5.4 -8.2 -10.6 -9.1 -10.7 -13.0 -12.1 -8.5 -9.0 -8.6 -8.3 2011 -7.5 -6.2 -6.5 -11.3 -9.5 -12.3 -12.9 -11.8 -12.2 -8.7 -10.3 -5.5 2012 -7.2 -7.5 -5.1 -7.3 -8.2 -14.2 -11.8 -11.5 -10.2 -11.7 -11.2 -7.4 2013 -6.0 -6.0 -5.3 -7.4 -11.2 -11.9 -13.1 -14.3 -14.8 -11.3 -11.8 -9.8 2014 -7.9 -8.5 -8.9 -7.4 -7.8 -9.0 -13.0 -11.4 -9.6 -10.8 -11.2 -8.9 2015 -6.5 -7.4 -7.2 -7.7 -8.6 -16.1 -15.3 -16.0 -14.5 -10.4 -9.5 -7.8 2016 -6.4 -6.0 -6.8 -10.4 -5.3 -9.1 -10.6 -13.2 -10.0 -6.7 -9.6 -7.4 2017 -7.4 -5.2 -4.8 -8.4 -7.7 -12.3 -12.8 -12.1 -18.5 -12.7 -8.6 -7.0 2018 -6.8 -5.0 - -8.9 -11.9 -11.2 -10.9 -13.3 -12.8 -8.5 -8.6 -7.7 2019 -7.6 -6.9 -6.7 -8.6 -11.2 -9.6 -9.4 -9.3 -10.6 -9.9 -8.3 -6.8 2020 -4.8 -4.4 -7.6 -9.8 -8.0 -8.2 -10.7 -13.3 -11.2 -10.6 -8.8 -7.5 2021 -6.6 -5.6 -7.8 -9.2 -11.2 -8.5 -9.6 -15.6 -10.4 -9.3 -8.7 -7.3 2022 -6.3 -6.2 -8.3 -8.9 -7.4 -10.4 -10.1 -9.2 -9.2 -10.1 -7.6 -6.9 2023 -5.7 -6.3 -7.3 -8.6 -9.0 -11.4 -9.9 -16.1 -9.4 -12.1 -9.2 -7.0 2024 -6.7 -5.2 -8.4 -9.4 - - - - - - - -