Casey 12Z 100hPa temperature 1957 - - - -55.2 -56.0 -58.5 -71.6 -72.5 -69.7 -49.3 -38.0 -41.8 1958 -40.8 -44.0 -46.9 -50.4 - - -72.0 -73.1 -68.9 -58.3 -46.5 -41.2 1959 -40.8 -43.6 -47.8 -52.1 -58.6 -68.1 -74.4 -76.3 -73.2 -68.0 -53.3 -44.8 1960 -41.8 -43.7 -47.2 -51.8 -58.0 -64.5 -70.1 -72.8 -70.0 -59.4 -41.6 -39.9 1961 -40.9 -44.1 -46.5 -52.0 - -64.6 - - - - -50.2 -41.3 1962 -42.3 -44.4 -46.4 -54.6 -60.3 -66.3 -69.7 -72.0 -65.0 -55.6 -41.1 -40.7 1963 - - - - - - - - - - - - 1964 - -45.0 -47.6 - - - - - - - -42.7 -42.5 1965 -42.7 -44.0 - - - - - - - - - - 1966 -42.5 -43.7 - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - -41.2 -42.0 1969 -42.2 -43.0 - - - - - - - - -44.7 -43.7 1970 -44.4 -43.4 -48.8 - - - - - - -54.1 -44.1 -42.7 1971 -42.9 -44.8 - - - - - - - -57.5 - -43.7 1972 -43.9 -43.9 -47.7 - - - - - - - -45.3 -41.3 1973 -42.0 -43.7 -47.0 - - - - - - -57.4 -44.4 -43.6 1974 -41.4 -44.3 -47.3 - - - - - - -54.8 -39.5 -41.8 1975 -42.6 -43.5 -48.1 - - - - - - -63.2 -49.3 -42.4 1976 -43.1 -43.7 -47.1 - - - - - - -60.0 -43.4 -45.0 1977 -42.6 -45.2 -49.0 - - - - - - -51.9 -38.7 - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - -71.9 -68.6 -56.0 -46.1 -42.5 -42.6 1989 -42.6 -44.3 -48.4 -52.3 -59.6 -67.6 -73.9 -76.7 -73.6 -63.0 -53.9 -44.7 1990 -43.5 -44.7 -48.8 -55.0 -57.8 -66.3 -70.9 -74.6 -69.1 -64.7 -55.0 -44.0 1991 -42.7 -46.2 -48.5 -51.5 -59.6 -68.3 -74.7 -73.9 -66.6 -54.0 -44.2 -42.2 1992 -42.9 -45.3 -49.2 -54.2 -58.4 -62.3 -70.1 -71.5 -66.4 -60.7 -52.2 -42.6 1993 -42.7 -43.7 -48.0 -53.5 -61.4 -70.7 -72.2 -74.7 -71.8 -62.2 -46.1 -45.5 1994 -44.2 -45.2 -48.7 -53.6 -59.8 -62.6 -72.4 -72.8 -73.3 -57.6 -38.4 -44.8 1995 -43.1 -43.9 -48.4 -52.3 -60.4 -68.1 -73.5 -75.8 -67.5 -66.6 -45.7 -49.2 1996 -45.5 -45.3 -48.1 -54.1 -63.4 -66.4 -73.7 -74.1 -61.3 -68.3 -56.0 -41.8 1997 -43.7 -44.6 -47.6 -54.1 -60.3 -68.7 -73.7 -71.2 -66.4 -63.7 -49.6 -47.0 1998 -43.9 -45.0 -48.8 -54.9 -61.3 -63.0 -73.2 -76.8 -69.8 -66.0 -59.4 -49.9 1999 -45.3 -45.7 -49.5 -53.3 -61.4 -67.0 -73.8 -76.6 -71.4 -62.6 -58.5 -50.5 2000 -46.7 -45.0 -49.2 -55.7 -62.5 -69.3 -72.6 -75.8 -67.9 -49.9 -52.5 -43.5 2001 -44.0 -46.9 -48.2 -54.6 -58.0 -63.7 -75.7 -76.3 -74.6 -65.3 -65.0 -50.2 2002 -42.9 -45.1 -49.0 -54.3 -59.2 -65.6 -72.6 -67.5 -50.7 -50.4 -46.9 -44.8 2003 -45.1 -46.8 -47.5 -54.8 -61.9 -68.0 -73.1 -74.0 -68.7 -65.4 -53.5 -45.5 2004 -45.0 -45.4 -47.6 -52.7 -58.3 -68.3 - - - - - - 2005 - - - - - - - - - - - -45.8 2006 -43.0 -44.7 -47.3 -53.3 -60.7 -70.5 -74.0 -78.0 -70.5 -72.4 -61.5 -47.2 2007 -45.1 -44.9 -48.8 -54.1 -61.9 -67.9 -76.6 -73.1 -62.9 -60.8 -55.3 -49.8 2008 -43.9 -45.2 -49.0 -54.4 -57.5 -69.2 -75.4 -75.7 -73.7 -61.2 -55.8 -48.1 2009 -44.8 -46.9 -48.8 -54.3 -61.1 -69.3 -74.9 -77.4 -71.5 -65.1 -49.7 -42.0 2010 -44.0 -45.8 -47.7 -53.4 -62.5 -69.6 -73.4 -74.6 -72.9 -67.0 -60.8 -48.7 2011 -46.0 -44.6 -48.9 -51.7 - - - - - - -47.5 -50.3 2012 -44.1 -45.4 -47.4 -54.2 -60.3 -68.5 -73.7 -70.9 -63.7 -50.5 -44.0 -42.5 2013 -44.2 -44.6 -47.4 -55.0 -61.3 -70.0 -74.6 -74.9 -60.5 -53.8 -54.6 -42.9 2014 -43.6 -44.7 -48.4 -52.8 -61.6 -66.7 -71.4 -74.4 -67.4 -59.6 -49.4 -49.7 2015 -43.6 -44.4 -48.2 -53.8 -60.0 -68.4 -74.1 -77.1 -76.4 -72.2 -60.3 -52.1 2016 -44.9 -45.4 -48.9 -54.9 -60.6 -67.9 -75.2 -73.6 -64.7 -61.4 -42.8 -43.6 2017 -43.6 -45.0 -49.0 - - -68.5 -73.4 -72.2 -60.8 -55.7 -56.9 -42.6 2018 -43.8 -45.3 -48.7 -52.8 -59.7 -68.7 -75.8 -75.1 -73.0 -64.9 -59.1 -43.6 2019 -44.5 -46.5 -47.8 -53.0 -61.2 -67.8 -70.5 -66.8 -48.7 -46.2 -43.6 -44.6 2020 -43.9 -43.5 -47.2 -53.3 -59.4 -70.6 -72.9 -69.3 -72.3 -70.2 -66.5 -51.2 2021 -43.6 -44.3 -49.5 -52.8 -64.1 -69.7 -76.5 -77.3 -73.1 -67.8 -60.4 -53.9 2022 -44.5 -44.4 -48.4 -54.3 -61.8 -66.6 -75.2 -76.4 -73.1 -68.9 -58.9 -50.9 2023 -44.0 -46.6 -50.4 -54.1 -62.5 -67.3 -74.3 -74.7 -69.8 -63.0 -62.9 -48.6 2024 -47.2 -45.7 -48.8 -54.9 - - - - - - - -