Halley 12Z 30hPa temperature 1957 - - - - - - - - - - -32.3 -32.3 1958 -34.9 -42.0 -52.9 -68.7 - - -91.7 -88.5 -82.2 -65.1 -39.3 -32.6 1959 -34.2 -37.5 -47.9 -64.6 -79.7 -85.8 -89.4 -90.5 -80.6 -65.2 -50.1 -32.7 1960 -35.5 -39.6 - - - -84.8 - - -86.2 -72.0 -43.5 -36.5 1961 - - - - - - - - - - - - 1962 - - - - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - -39.6 - 1967 -34.9 - -51.7 - - -86.7 - -90.8 -83.9 - - -35.8 1968 -34.9 -40.5 - - - - - -88.2 - - - - 1969 - - - - -78.0 - - - - - - - 1970 - - -51.9 - - - - - -84.8 -68.9 -34.0 - 1971 - - -47.6 -63.3 -76.5 -81.9 -91.0 -87.9 -80.4 -62.9 -34.2 -31.8 1972 -34.3 - -50.2 -63.9 -79.4 -85.4 -91.2 -86.2 -83.6 -67.6 - - 1973 - -41.9 -50.0 -65.2 -79.5 -86.9 - -88.8 -79.4 -68.6 - - 1974 - - - - - - - - - - - - 1975 - - - - - - - - - - - - 1976 -36.3 -42.3 - -61.8 -76.9 - -88.8 - -78.8 - -38.1 -34.4 1977 - - - - - - - - -77.5 -58.4 -32.8 -30.8 1978 -34.2 -39.8 - - -77.0 - - - - - - - 1979 -37.5 -39.5 - - - - - - -78.3 -54.2 -39.1 - 1980 -35.7 -40.4 -49.8 -60.9 -75.1 - - - -80.7 -67.0 - - 1981 - - -52.6 -65.3 -74.5 - - - - - - - 1982 - - - -63.5 - - - - -78.2 -59.3 -36.1 -32.2 1983 -33.9 -39.9 -49.3 -63.5 - - - - -78.9 -67.2 -35.0 -32.6 1984 - -41.2 -50.5 -63.8 - - - - -79.7 - -35.6 -35.2 1985 -35.6 -40.9 -51.5 -61.9 - -84.4 -86.4 -85.0 -78.2 -65.1 -40.8 -32.8 1986 -35.4 -40.5 -50.8 -65.0 -76.3 -84.8 -88.0 -83.3 -79.3 -55.9 -36.3 -30.9 1987 -35.3 -39.7 -51.1 -64.1 -75.5 -84.4 -88.1 -86.3 -82.9 -69.6 -50.5 -31.6 1988 -35.2 -41.2 -51.6 -64.5 -76.1 -86.1 -89.9 -87.0 -78.3 -58.8 -36.3 -34.4 1989 -37.1 -42.2 -52.7 -65.4 -76.1 -84.4 -87.5 -87.2 -81.9 -67.3 -37.4 -31.3 1990 -35.2 -41.2 -53.0 -64.6 -78.6 -87.0 -89.2 -87.4 -83.0 -64.2 -44.8 -32.3 1991 -35.2 -42.1 -50.4 -65.4 -78.2 -83.6 -86.5 -87.7 -82.2 -60.3 -31.5 -33.4 1992 - -40.2 -50.0 -64.2 -76.7 -85.1 -88.2 - -81.4 -58.2 -35.8 -33.7 1993 -35.2 -39.2 -50.5 -64.2 -76.1 -85.7 - - - -67.5 -42.6 -30.6 1994 - -43.6 -52.8 -65.1 - - - - - -69.7 -37.0 -33.5 1995 -35.9 -41.1 -51.5 -65.5 - - - - - -66.9 -43.5 -33.0 1996 -36.5 -42.9 -53.2 -66.3 - - - - -83.4 -68.7 -48.7 -31.8 1997 -36.6 -40.1 - - - - - - - -71.4 - -34.4 1998 -36.5 - - - - - - - -84.3 -68.3 -42.0 - 1999 - - -51.3 -62.1 - - - - -81.7 - -47.2 -31.8 2000 -34.4 -42.8 -54.2 -64.5 -77.3 -86.8 -90.8 -88.9 -82.6 -62.8 -29.6 -35.1 2001 -36.9 -44.6 -53.4 -66.1 -78.7 -86.3 -88.0 -87.8 -82.8 -68.5 -43.3 -31.8 2002 -35.5 -42.0 -52.9 -63.9 -77.0 -83.7 -86.6 -89.7 -68.2 -48.9 -36.0 -38.3 2003 -38.6 -43.3 -54.0 -65.2 - -87.1 -90.8 -89.3 -85.3 -57.7 -32.4 -35.6 2004 -37.3 -42.3 -52.5 -65.6 -79.9 -85.1 - -84.4 -80.0 -54.5 -38.3 -33.1 2005 -38.2 -43.1 -52.3 -66.3 -78.8 -85.2 -88.6 -88.5 -84.2 -64.1 -37.1 -35.0 2006 -37.8 -42.1 -50.6 -64.1 -76.7 -83.8 -86.9 -88.1 -85.6 -72.4 -47.1 -29.0 2007 -35.9 -41.1 -51.7 -65.5 -77.6 - - -90.3 -87.4 -58.9 -40.6 -34.7 2008 -36.2 -42.1 -52.1 -65.1 -77.0 - - - -85.0 -65.3 -44.9 -31.8 2009 -35.5 -42.3 -53.5 -67.3 -77.5 - - - -81.8 -61.3 -38.4 -29.8 2010 -36.5 -43.0 -54.0 -65.6 -78.8 - - - -81.3 -64.2 -43.2 -34.6 2011 -36.3 -42.5 -52.9 -66.1 -77.1 - - - -86.7 -73.3 -50.3 -30.9 2012 -33.7 -42.7 -52.9 -65.6 -75.1 - - - -80.6 -54.7 -32.9 -36.2 2013 -37.5 -42.1 -53.0 -66.2 -76.3 - - - -81.9 -59.8 -32.6 -36.1 2014 -36.9 -41.1 -53.2 -65.5 -78.2 - - - - -63.8 -41.1 -33.9 2015 -35.7 -42.7 -53.1 -66.0 -77.6 - - - -80.9 -70.2 -49.2 -33.4 2016 -35.2 -42.0 -53.0 -67.3 -78.2 - - - -84.0 -64.2 -38.0 -35.7 2017 -37.2 -40.8 - - - - - - - - - -33.7 2018 -36.7 -41.9 - - - - - - - - - -35.0 2019 -36.3 -40.5 - - - - - - - - - -37.1 2020 -37.5 - - - - - - - - - - - 2021 - - - - - - - - - - - -32.2 2022 -35.9 - - - - - - - - - - -32.2 2023 -36.5 - - - - - - - - - - -34.8 2024 -36.8 - - - - - - - - - - -