Mcmurdo 12Z 200hPa temperature 1956 - - - - - - - -71.7 -69.5 -65.7 - - 1957 - - - -53.5 -58.5 -63.0 -69.7 -71.3 -71.0 -66.3 -45.7 -42.9 1958 - - -45.3 -53.1 -57.3 -65.9 -68.7 -71.6 -71.6 -66.2 -57.0 -46.1 1959 -43.2 -42.2 -45.2 - -57.4 -66.9 -70.5 -71.8 -73.0 -68.2 -65.5 -52.1 1960 -45.2 -42.8 - - - - - - - - - - 1961 -40.8 -44.8 -46.7 -50.5 -59.3 -65.0 -70.7 -72.0 -71.3 -69.3 -63.2 - 1962 -44.9 -45.5 -45.5 -52.2 -60.6 -66.8 -70.0 -74.2 -71.9 -66.1 -49.1 -41.0 1963 -39.9 -40.9 - - - - - - - -69.7 -60.1 -47.8 1964 -41.6 -42.8 - - - - - - - -63.9 -47.5 -42.7 1965 -41.3 -43.8 - - - - - - - -68.9 -58.8 -47.3 1966 -42.8 -43.6 - - - - - - - -68.8 -58.2 -41.3 1967 -41.7 -44.2 - - - - - - - -66.5 -52.6 -44.1 1968 -40.8 -41.3 - - - - - - - -65.2 -45.2 -40.7 1969 -41.7 -40.9 - - - - - - - -69.1 -60.6 -48.2 1970 -43.9 -43.1 - - - - - - - -64.3 -59.1 -46.9 1971 -41.9 -41.9 - - - - - - - -66.7 -59.1 -44.4 1972 -42.4 -41.8 - - - - - - - -66.5 -58.9 -46.7 1973 -42.3 -42.2 - - - - - - - -71.2 -52.8 -46.8 1974 -43.6 -43.4 - - - - - - - -66.9 -46.8 -40.9 1975 -39.5 -40.4 - - - - - - - -69.8 -58.6 -43.7 1976 -41.1 -40.0 - - - - - - - -65.6 -52.9 -46.7 1977 -41.0 -41.2 - - - - - - - -68.7 -52.5 -42.6 1978 -41.0 -42.0 - - - - - - - -65.5 -54.3 -45.7 1979 -42.7 - - - -60.7 - - - - - -59.0 -41.2 1980 -41.4 -39.8 - - - - - - - -69.1 -59.8 -43.0 1981 -43.2 -43.3 - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - -57.6 -47.6 1984 -42.7 -43.0 - - - - - - - -65.4 -57.4 -47.9 1985 -43.9 -42.2 - - - - - - - -68.7 -59.5 -53.8 1986 - -43.8 - - - - - - - - -49.8 -48.3 1987 -43.1 -42.2 - - - - - - - -70.8 -64.6 -47.5 1988 -42.2 -42.2 - - - - - - - -64.9 -51.7 -43.2 1989 -42.1 -42.8 - - - - - - - -67.6 -62.1 -47.1 1990 -42.5 -42.1 - - - - - - -70.6 -69.4 - -46.6 1991 -42.5 -43.4 - - - - - - - -67.1 -46.1 -45.6 1992 - -44.2 - - - - - - - -65.9 -61.8 -48.9 1993 -44.7 - - - - - - - - -72.0 -60.6 -50.3 1994 -44.8 -44.1 -46.1 -54.2 - - - - - - -50.3 -48.5 1995 -42.6 -43.0 - - - - - - - -72.1 -62.7 -54.0 1996 -45.4 -44.9 - - - - - - -70.3 -67.4 -60.3 -49.6 1997 -43.3 -43.0 - - - - - - - -70.3 -65.0 -50.6 1998 -42.1 -45.4 - - - - - - - -65.9 -60.5 -56.1 1999 -48.6 -45.1 - - - - - - - -68.3 -65.3 -56.7 2000 -48.9 -44.4 - - - - - - - -64.2 -55.8 -46.0 2001 -43.5 -43.9 - - - - - -72.1 - -69.3 -65.8 -58.0 2002 -45.8 -44.3 - - - - - -69.4 - -57.8 -45.2 -45.1 2003 -44.0 -43.4 - - - - - - -72.2 -66.8 -60.4 -47.8 2004 -45.3 -44.8 - - - - - -73.7 - -65.6 -57.5 -46.1 2005 -43.5 -43.3 - - - - - - - -63.8 -54.6 -50.9 2006 -43.4 -43.4 - - - - - - - -70.7 -67.5 -51.0 2007 -49.0 -43.8 - - - - - - - -66.3 -61.9 -53.2 2008 -45.3 -42.1 - - - - - - -73.1 -69.9 -63.8 -53.7 2009 -43.8 -45.2 - - - - - - - -66.3 -61.2 -46.3 2010 -44.2 -43.5 - - - - - -72.1 -75.4 -68.1 -66.7 -55.6 2011 -45.9 -45.5 - - - - - -72.8 - -68.8 -60.7 -52.3 2012 -44.3 -44.3 - - - - - -73.9 - -62.9 -52.9 -42.3 2013 -43.2 -43.1 - - - - - - - -64.4 -58.1 -43.3 2014 -45.0 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - -64.3 -59.5 -48.0 2018 -42.1 -44.4 - - - - - - - -70.9 -63.5 -52.2 2019 -46.3 -45.0 - - - - - -73.1 -67.5 -58.2 -47.6 -45.6 2020 -43.3 -42.2 - - - - - - - -70.3 -66.8 -58.7 2021 - -43.8 -45.8 - - - - -75.4 - -70.7 -67.5 -58.5 2022 -50.3 -44.2 - - - - -71.3 -72.5 - -71.6 -64.2 -56.5 2023 -48.0 -44.7 - - - - - -72.5 -71.4 -68.4 -66.4 -56.6 2024 -48.5 -46.0 -47.4 -54.0 - - - - - - - -