Davis 00Z 50hPa temperature 1959 - - - - - - - - - -69.1 - - 1960 -41.3 - - - - - - - - - - - 1961 - - - - - - - - - - - - 1962 - -44.4 -47.5 - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - - - - 1969 - - - - - - - - - - - - 1970 -39.3 - - - - - - - - - - - 1971 - - -48.4 - - - - - - - -39.8 -40.8 1972 -40.6 -42.2 -48.8 -60.0 - - -79.8 -79.5 -77.3 -55.7 -40.4 -38.6 1973 -39.5 -42.9 -50.2 -57.6 -64.5 -73.0 - - -64.4 -62.9 -38.5 -39.5 1974 -39.5 -43.8 -50.3 -59.1 -68.5 - - - - -47.4 -36.5 -38.2 1975 -40.0 -43.1 -50.2 - - -79.4 -80.1 - - -63.5 -46.5 -38.6 1976 -40.6 -42.7 -48.2 -58.3 -70.4 -78.1 - -80.4 - -61.7 -39.5 -40.5 1977 -41.0 -43.2 -50.3 -59.6 -67.7 -72.8 -84.1 -83.3 -70.5 -48.9 -36.8 -38.4 1978 -38.3 -42.7 -48.7 -60.6 -69.2 -77.6 -83.7 -81.5 -70.8 -59.0 -41.1 -41.0 1979 -40.6 -43.0 -51.5 -57.3 -70.9 -78.3 -83.7 -82.9 -75.0 -40.1 -42.6 -39.3 1980 -39.9 -43.0 -48.9 -56.7 -63.5 -72.4 -83.6 -83.9 -77.8 -56.5 -39.3 -37.0 1981 -38.4 -43.8 -49.2 -57.7 -69.5 -75.1 -81.8 -83.4 -69.9 -56.2 -43.2 -40.2 1982 -39.9 -43.4 -50.8 -59.5 -70.5 -77.8 -84.0 -83.0 -71.4 -61.1 -40.4 -39.8 1983 -39.7 -43.1 -50.5 -59.4 -70.9 -78.5 -84.0 -83.2 -74.0 -62.8 -41.3 -39.0 1984 -40.0 -43.2 -50.0 -60.0 -66.3 -75.8 -83.5 -82.1 -72.2 -55.6 -40.1 -40.3 1985 -41.1 -44.0 -50.9 -62.0 -69.5 -81.7 -80.3 -80.1 -79.4 -67.9 -48.2 -40.2 1986 -41.0 -45.3 -51.4 -60.5 -66.1 -77.8 -81.2 -82.8 -73.5 -60.2 -39.4 -38.5 1987 -40.7 -43.1 -49.7 -58.7 -72.2 -77.6 -83.4 -85.0 -79.2 -67.1 -51.1 -36.5 1988 -40.3 -43.7 -50.2 -61.8 - -79.6 -79.6 -65.8 -50.4 -42.4 -36.5 -39.2 1989 -40.0 -44.0 -50.2 -58.8 -66.5 -77.8 -83.1 -84.7 -76.8 -63.0 -46.9 -39.1 1990 -40.1 -43.8 -50.2 -58.9 -64.9 -78.2 -81.2 -81.0 -75.8 -61.9 -48.0 -39.8 1991 -39.3 -44.5 -48.5 -57.1 -68.2 -76.2 -81.4 -78.5 -69.0 -45.3 -37.1 -39.2 1992 -39.9 -44.3 -49.9 -59.5 -66.4 -68.9 -77.1 -79.3 -70.8 -61.4 -45.8 -37.9 1993 -40.1 -42.8 -45.5 -58.3 -67.0 - - -80.6 -74.0 -58.3 -42.4 -37.3 1994 -40.0 -42.7 -50.3 -59.6 -63.7 - -82.1 -81.2 -78.9 -54.2 -34.1 -36.6 1995 -39.4 -44.1 -50.1 -57.8 -69.4 -78.2 -82.0 -80.1 -67.7 -68.1 -39.8 -39.7 1996 -39.9 -43.5 -49.9 -59.0 -70.7 -73.8 -80.7 -78.3 -67.1 -71.0 -54.3 -38.5 1997 -40.1 -43.8 -50.4 -60.4 -68.5 -78.6 -82.5 -76.4 -70.1 -67.0 -37.1 -40.6 1998 -40.9 -43.2 -50.7 -60.0 -69.3 -70.9 -82.0 -83.8 -76.0 -67.6 -53.4 -41.3 1999 -41.5 -44.9 -51.3 -59.3 -70.2 -78.1 -83.2 -82.4 -73.2 -63.9 -53.5 -41.1 2000 -41.5 -43.3 -50.3 -60.3 -69.3 -79.6 -82.5 -80.8 -68.4 -43.9 -45.4 -40.9 2001 -41.0 -45.6 -49.3 -60.1 -66.0 -73.6 -83.9 -83.3 -78.6 -67.6 -61.4 -40.0 2002 -41.0 -44.1 -49.2 -58.3 -64.0 -70.8 -77.9 -78.6 -55.7 -49.2 -40.6 -41.0 2003 -41.9 -45.0 -50.4 -60.4 -70.4 -78.5 -83.3 -82.1 -74.9 -66.4 -45.3 -40.3 2004 -41.5 -45.4 -49.3 -57.4 -65.5 -78.8 - -71.0 -69.2 -56.1 -44.3 -39.2 2005 -39.3 -44.0 -51.2 -60.4 -65.7 -75.7 -81.6 -78.5 -67.3 -56.5 -42.4 -41.8 2006 -40.3 -43.6 -48.6 -58.5 -70.9 -80.4 -82.3 -84.3 -77.4 -76.8 -57.5 -35.8 2007 -40.4 -42.7 -50.2 -59.1 -69.8 -76.3 -84.5 -81.5 -69.7 -62.9 -48.9 -43.0 2008 -40.2 -43.2 -50.9 -58.8 -65.2 -79.0 -85.3 -83.4 -77.8 -61.7 -49.7 -42.0 2009 -40.3 -45.6 -50.4 -60.5 -70.1 -78.1 -82.7 -83.4 -75.5 -71.0 -43.5 -36.6 2010 -39.9 -44.7 -49.5 -58.2 -70.9 -79.1 -81.2 -80.9 -77.2 -68.4 -54.4 -43.8 2011 -41.8 -44.8 -50.1 -58.5 -69.8 -81.2 -84.1 - -77.4 -57.9 -43.5 -40.6 2012 -39.3 -43.4 -48.5 -59.8 -69.4 -78.3 -81.4 -74.5 -67.2 -47.1 -41.0 -40.2 2013 -40.9 -44.0 -50.0 -61.9 -69.0 -80.6 -83.6 -81.1 -59.0 -51.4 -48.2 -40.5 2014 -40.9 -44.1 -50.1 -58.9 -69.5 -76.6 - -83.3 -76.2 -63.0 -42.4 -39.9 2015 -39.6 -43.4 -49.0 - - - - - - - -49.0 -42.4 2016 -40.1 -44.1 -51.9 -60.6 -69.0 -77.4 -84.1 -80.0 -72.9 -64.7 -41.6 -38.6 2017 -40.8 -44.0 -51.5 -61.1 -70.7 -78.5 -82.8 -79.3 -65.1 -57.5 -50.9 -40.1 2018 -41.0 -45.2 -51.9 -57.1 -68.5 -79.3 -84.8 -83.6 -78.9 -63.9 -53.1 -39.0 2019 -41.0 -45.5 -50.0 -58.3 -70.3 -79.1 -77.9 -74.4 -43.7 -48.4 -41.0 -40.8 2020 -41.7 -43.1 -50.1 -57.3 -66.8 -80.8 -80.5 -75.0 -75.7 -74.9 -66.4 -44.3 2021 -40.4 -42.9 -51.2 -58.7 -72.4 -79.1 -83.3 -82.2 -77.6 -69.0 -55.9 -43.5 2022 -40.9 -43.4 -50.2 -60.8 -69.8 -78.0 -83.5 -84.1 -78.0 -71.5 -51.0 -39.8 2023 -40.6 -44.9 -52.6 -60.6 -70.7 -78.1 -83.4 -80.2 -73.0 -65.9 -61.2 -41.2 2024 -40.9 -45.1 -51.0 -60.7 - - - - - - - -