Casey 12Z 30hPa temperature 1957 - - - - -56.6 - - - - -35.3 -36.4 -37.4 1958 -38.2 -42.2 -48.3 -51.9 - - - - - -33.9 -33.1 -36.3 1959 -37.8 -43.5 -51.6 -56.6 -64.3 - -82.1 -81.0 -71.7 -60.6 -41.0 -39.6 1960 - -41.2 -49.9 -56.8 -65.5 -72.1 -77.7 -75.1 -65.8 -47.3 -34.8 -35.2 1961 -37.9 -43.2 -47.3 -56.6 - - - - - - - -36.9 1962 -38.0 -42.4 -47.3 -58.0 -68.5 -73.0 - -66.9 -51.5 -42.1 -37.3 -37.3 1963 - - - - - - - - - - - - 1964 - -42.7 -46.7 - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - - - 1969 - - - - - - - - - - - - 1970 - - - - - - - - - - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 - - - - - - - - - - - - 1975 - - - - - - - - - - - - 1976 - -41.8 - - - - - - - - - - 1977 - - - - - - - - - - - - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - -59.5 - -33.3 -34.4 -36.7 1989 -39.2 -42.5 -49.9 -57.0 -64.0 -72.2 -80.9 -80.0 -68.6 -41.0 -30.4 -38.7 1990 -38.4 -41.9 -49.1 -58.2 -64.2 -73.2 -77.9 -76.6 -54.9 -46.5 -37.4 -38.0 1991 -37.2 - -50.1 -53.7 -65.4 -76.9 -82.4 -74.8 -46.8 -31.5 -32.6 -37.3 1992 -37.6 -41.8 -48.5 -57.7 -63.1 -68.3 -69.6 -64.6 -52.0 -35.0 -36.9 -36.5 1993 -37.9 -41.7 -47.8 -57.2 -67.1 -78.5 -78.9 -72.6 -66.0 -37.3 -31.7 -34.5 1994 -38.1 -42.1 -48.4 -56.0 -64.1 -69.7 -79.2 -71.6 -63.6 -37.8 -34.6 -32.7 1995 -37.1 -41.2 -49.3 -56.0 -68.0 -76.9 -81.5 -78.6 -52.6 -45.0 -37.8 -34.4 1996 -38.3 -42.9 -48.4 -58.8 -69.8 -73.7 -78.7 -72.6 -48.5 -44.5 -41.5 -37.3 1997 -38.2 -42.3 -47.6 -56.1 -67.1 -76.8 -80.3 -68.6 -60.4 -41.0 -34.1 -39.0 1998 -38.8 -42.0 -48.2 -60.7 -68.5 -67.0 -79.2 -79.2 -57.9 -45.8 -39.0 -36.9 1999 -38.1 -42.3 -50.3 -55.5 -69.4 -76.4 -82.2 -78.2 -61.9 -42.7 -37.3 -34.5 2000 -37.8 -42.0 -47.2 -59.5 -69.8 -77.9 -79.0 -75.7 -53.1 -29.1 -35.2 -38.7 2001 -40.5 -45.2 -49.1 -58.4 -62.6 -70.1 -82.7 -77.6 -64.4 -40.2 -39.2 -38.4 2002 -38.8 -42.5 -49.8 -59.0 -66.8 -73.0 -80.8 -65.2 -40.2 -42.9 -37.9 -39.9 2003 -41.5 -44.7 -49.3 -60.1 -67.3 - - - -52.9 -34.7 -38.0 -39.8 2004 -40.2 -42.8 -48.2 -57.2 -65.6 - - - - - - - 2005 - - - - - - - - - - - -39.3 2006 -38.8 -41.6 -48.2 -58.2 -67.4 - - - -45.3 -46.9 -40.9 -34.5 2007 -37.8 -42.5 -51.1 -59.1 -69.0 -72.6 -86.6 -73.0 -52.4 -33.2 -40.4 -36.4 2008 -38.0 -42.6 -49.9 -59.5 -63.5 -78.4 -82.9 -80.3 -64.3 -38.7 -40.6 -37.9 2009 -38.4 -44.2 -49.2 -59.4 -66.4 -78.6 -82.9 -81.3 -62.0 -41.2 -40.2 -36.7 2010 -38.8 -43.5 -47.0 -58.1 -68.1 -76.1 -77.0 -74.1 -63.8 -45.0 -40.5 -41.5 2011 -38.6 -42.9 -47.4 - - - - - - - -36.8 -31.4 2012 -37.5 -42.3 -47.8 -59.2 -67.8 -77.2 -79.2 -70.7 -48.1 -34.6 -40.1 -38.5 2013 -38.8 -43.1 -50.1 -60.6 -67.6 -78.1 - -69.3 -46.6 -33.7 -39.8 -39.2 2014 -40.1 -42.0 -49.6 -57.6 -67.5 -74.2 - -74.0 -58.5 -34.5 -37.9 -33.7 2015 -38.6 -42.2 -48.6 -57.8 -66.6 -75.5 -81.5 -81.6 -73.9 -53.7 -33.7 -35.6 2016 -37.1 -42.4 -50.7 -59.4 -65.4 -75.1 -83.6 -78.3 -53.8 -39.2 -39.1 -38.1 2017 -39.3 -43.7 -50.1 - - -75.9 -79.8 -67.0 -46.5 -41.2 -35.4 -38.7 2018 -39.8 -44.3 -49.9 -56.8 -64.6 -78.9 -81.8 -77.0 -67.7 -39.7 -35.5 -36.9 2019 -37.7 -43.0 -50.0 -57.7 -69.2 -74.8 -77.1 -61.9 -29.2 -40.4 -41.2 -39.6 2020 -39.4 -42.8 -49.6 -56.8 -64.5 -78.7 -79.9 -65.3 -64.9 -51.9 -46.1 -34.3 2021 -38.7 -41.8 -50.5 -57.0 -72.2 -79.4 -81.9 -78.9 -67.8 -50.5 -38.8 -37.4 2022 -38.5 -42.5 -49.1 -59.8 -68.6 -74.6 -81.6 -80.7 -66.7 -54.4 -39.5 -34.7 2023 -38.6 -43.5 -53.7 -58.7 - -78.4 -79.2 -76.1 -60.2 -39.5 -43.7 -38.3 2024 -38.7 -43.4 -49.9 -60.8 - - - - - - - -