Mcmurdo 12Z 150hPa temperature 1956 - - - - - - - - -70.6 -64.2 - - 1957 - - - -55.4 -60.0 -64.9 -71.6 -74.5 -73.4 -65.6 -42.1 -40.9 1958 - - -45.2 -53.2 -58.7 -67.1 -71.2 -74.1 -74.0 -66.0 -53.5 -41.3 1959 -41.4 -41.5 -44.9 - -58.9 -68.8 -72.5 -74.7 -75.4 -69.3 -64.7 -48.2 1960 -43.1 -42.7 - - - - - - - - - - 1961 -40.3 -43.8 -46.5 -52.1 -60.6 -67.6 -72.6 -75.3 -73.9 -70.1 -61.4 - 1962 -42.6 -44.5 -45.8 -53.0 -62.7 -69.3 -72.5 -76.5 -74.1 -66.4 -45.4 -38.6 1963 -39.0 -41.5 - - - - - - - - -55.4 -42.5 1964 -40.7 -43.0 - - - - - - - -61.7 -41.9 -40.7 1965 -40.6 -43.5 - - - - - - - -70.1 -55.2 -43.0 1966 -41.3 -43.5 - - - - - - - -69.8 -55.7 -38.8 1967 -41.1 -43.4 - - - - - - - -64.5 -48.6 -42.3 1968 -40.4 -41.4 - - - - - - - -64.5 -42.8 -38.5 1969 -41.0 -40.7 - - - - - - - -70.5 -58.3 -44.0 1970 -42.5 -42.3 - - - - - - - - - - 1971 - - - - - - - - - -62.5 -56.7 -41.7 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - -47.8 -43.3 1974 -42.7 -42.4 - - - - - - - -67.2 -42.0 -39.1 1975 -39.2 -40.0 - - - - - - - -71.2 -56.4 -41.4 1976 -41.2 -39.9 - - - - - - - -65.8 -48.3 -44.3 1977 -40.8 -41.3 - - - - - - - -68.1 -48.0 -40.5 1978 -39.5 -41.7 - - - - - - - -64.7 -49.8 -43.6 1979 -42.0 - - - - - - - - - -55.2 -40.2 1980 -41.1 -39.5 - - - - - - - -70.6 -58.0 -40.4 1981 -41.3 -43.0 - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - -54.8 -45.0 1984 -42.4 -42.8 - - - - - - - -64.9 -55.7 -45.8 1985 -42.3 -41.7 - - - - - - - - -59.3 -51.7 1986 - -44.2 - - - - - - - - -43.9 -46.3 1987 -42.6 -42.0 - - - - - - - -74.9 -66.3 -44.6 1988 -40.8 -42.0 - - - - - - - -64.6 -47.8 -41.8 1989 -41.1 -42.5 - - - - - - - -69.3 -61.7 -45.6 1990 -41.5 -42.2 - - - - - - - -71.8 - -43.0 1991 -40.2 -43.2 - - - - - - - -68.1 -42.9 -43.2 1992 - -43.6 - - - - - - - -65.6 -61.5 -46.8 1993 -42.8 - - - - - - - - -74.0 -59.4 -47.7 1994 -43.5 -43.2 -46.5 -54.9 - - - - - - -47.2 -44.1 1995 -41.5 -42.4 - - - - - - - -73.8 -63.3 -52.8 1996 -43.9 -44.0 - - - - - - - -68.8 -61.3 -47.5 1997 -42.2 -43.5 - - - - - - - -72.5 -65.1 -50.8 1998 -41.5 -44.0 - - - - - - - -67.5 -61.5 -55.0 1999 -47.1 -44.2 - - - - - - - -70.9 -66.8 - 2000 -48.0 -43.8 - - - - - - - -64.2 -53.5 -44.6 2001 -43.4 -43.3 - - - - - -74.9 - -71.5 -67.9 -56.7 2002 -44.7 -43.1 - - - - - -72.3 - -58.5 -44.4 -44.5 2003 -43.2 -43.1 - - - - - - -75.2 -68.5 -59.8 -45.8 2004 -43.9 -44.4 - - - - - -76.4 - -66.3 -57.1 -43.8 2005 -43.3 -43.2 - - - - - - - -65.9 -53.2 -50.3 2006 -42.4 -42.8 - - - - - - - -73.0 -69.0 -48.7 2007 -48.1 -43.0 - - - - - - - -66.8 -62.4 -52.8 2008 -43.2 -41.3 - - - - - - -76.5 -71.5 -65.6 -51.2 2009 -42.0 -44.1 - - - - - - - -67.9 -61.7 -44.1 2010 -43.1 -42.7 - - - - - -76.0 -77.7 -70.4 -68.4 -55.5 2011 -44.3 -44.7 - - - - - -77.4 - -71.7 -61.2 -51.4 2012 -42.5 -43.6 - - - - - - - -62.3 -49.8 -41.5 2013 -42.0 -42.6 - - - - - - - -65.6 -58.0 -42.4 2014 -44.1 - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - -65.2 -57.8 -46.1 2018 -42.3 -44.2 - - - - - - - -73.4 -64.1 -51.0 2019 -44.4 -44.0 - - - - - -75.8 -68.9 -57.5 -45.1 -43.8 2020 -42.0 -41.3 - - - - - - - -72.8 -69.6 -58.9 2021 - -43.0 -46.1 - - - - -78.4 - -73.6 -69.2 -57.9 2022 -48.6 -42.9 - - - - -74.8 -75.7 - -74.5 -66.6 -54.8 2023 -46.5 -43.9 - - - - - -76.0 -74.7 -70.1 -66.7 -55.3 2024 -46.5 -45.0 -47.0 -54.7 - - - - - - - -