Syowa 00Z 100hPa temperature 1968 - - -48.8 -56.5 -62.2 -71.1 -78.0 -79.5 -77.5 -65.6 -39.0 -40.1 1969 -41.6 -44.2 -48.7 -56.7 -62.9 -72.3 -77.2 -76.9 -75.9 -72.0 -57.7 -43.6 1970 -41.3 -44.0 -47.7 -56.3 -63.9 -68.7 -78.3 -78.6 -76.4 -70.1 -50.0 -43.2 1971 -41.4 -43.1 -48.5 -56.0 -61.6 -69.5 -77.2 -75.3 -75.9 -67.7 -46.5 -43.3 1972 -42.0 -43.9 -49.0 -56.4 -65.7 -73.5 -77.7 -77.9 -78.3 -66.9 -47.9 -42.4 1973 -43.0 -44.5 -48.5 -55.4 -66.1 -70.8 -77.0 -78.7 -72.7 -69.4 -56.4 -41.9 1974 -42.3 -43.8 -49.4 -55.9 -63.7 -71.4 -76.0 -79.7 -73.6 -65.4 -47.7 -41.1 1975 -40.4 -43.8 -48.6 -56.3 -65.2 -73.1 -76.7 -74.9 -74.9 -67.9 -50.4 -42.1 1976 -42.7 -43.0 -48.7 -55.0 -65.0 -72.6 -77.7 -80.2 -75.6 -71.2 -50.7 -43.7 1977 -42.4 -44.9 -49.6 -56.9 -62.9 -69.9 -79.3 -78.5 -74.7 -64.8 -53.7 -40.8 1978 -39.7 -43.5 -47.8 -54.3 -64.5 -70.6 -76.9 -79.0 -75.4 -67.2 -50.6 -41.8 1979 -41.3 -44.0 -49.3 -55.2 -65.4 -71.8 -77.9 -78.3 -76.9 -61.0 -48.9 -41.2 1980 -40.7 -43.7 -48.7 -52.7 -60.3 -67.7 -76.1 -75.7 -76.3 -69.5 -55.7 -42.1 1981 -43.3 -45.2 -49.4 -57.3 -64.2 -70.7 -75.9 -76.8 -73.7 -65.9 -56.8 -42.8 1982 -44.9 -44.9 -49.2 -55.7 -66.9 -71.9 -77.1 -78.7 -76.7 -72.9 -51.8 -44.4 1983 -42.7 -44.8 -49.6 -56.1 -65.0 -73.1 -78.1 -79.0 -74.6 -71.8 -57.6 -43.3 1984 -44.1 -45.5 -49.5 -56.4 -63.4 -71.7 -77.9 -79.7 -76.6 -70.0 -60.4 -46.9 1985 -43.5 -46.2 -50.1 -56.0 -64.4 -75.4 -76.0 -78.5 -78.9 -75.6 -65.9 -49.2 1986 -45.3 -46.2 -50.0 -57.0 -62.4 -70.8 -75.0 -77.6 -77.2 -68.3 -62.7 -49.6 1987 -44.0 -46.0 -49.0 -55.4 -66.5 -73.1 -76.5 -81.2 -78.4 -75.6 -67.7 -49.4 1988 -44.4 -45.9 -51.0 -56.4 -65.1 -71.3 -77.8 -76.2 -69.6 -65.5 -52.3 -42.5 1989 -44.1 -45.9 -49.8 -56.7 -63.3 -72.7 -78.6 -80.8 -76.5 -73.3 -62.8 -44.9 1990 -43.7 -44.8 -49.5 -55.7 -63.4 -74.4 -76.8 -78.0 -78.5 -71.2 -60.4 -49.9 1991 -44.7 -46.9 -49.3 -55.6 -65.0 -70.3 -76.5 -78.1 -76.6 -64.8 -59.9 -45.4 1992 -44.8 -44.9 -50.5 -58.3 -64.1 -69.9 -74.7 -78.3 -77.8 -75.5 -62.5 -46.7 1993 -45.4 -45.3 -49.1 -56.4 -67.1 -74.6 -77.3 -79.3 -77.0 -74.2 -65.1 -50.5 1994 -44.1 -46.3 -50.6 -55.8 -63.6 -70.3 -77.8 -80.7 -79.5 -73.8 -60.2 -45.5 1995 -43.2 -45.7 -49.8 -55.8 -64.9 -73.9 -79.3 -77.2 -74.3 -77.2 -67.1 -55.0 1996 -44.1 -47.5 -49.1 -56.4 -65.9 -71.9 -77.2 -76.6 -77.0 -76.8 -69.4 -51.9 1997 -43.8 -44.8 -49.2 -56.4 -64.1 -75.3 -77.8 -78.3 -73.7 -77.7 -58.5 -48.7 1998 -44.4 -45.4 -49.6 -55.7 -65.2 -71.0 -77.7 -80.2 -79.2 -75.8 -69.8 -56.8 1999 -46.4 -46.7 -49.3 -57.0 -63.6 -73.4 -77.5 -79.2 -77.1 -75.1 -71.9 -61.5 2000 -45.0 -45.8 -50.1 -55.9 -64.4 -74.1 -78.7 -80.5 -77.7 -72.3 -64.4 -43.5 2001 -43.6 -45.4 -48.7 -55.7 -65.3 -72.5 -78.6 -80.7 -79.3 -79.3 -71.0 -51.2 2002 -43.5 -44.8 -48.7 -54.5 -61.3 -67.0 -75.5 -78.2 -72.1 -59.1 -50.5 -43.8 2003 -44.8 -45.1 -48.8 -56.2 -66.2 -72.4 -78.8 -79.9 -79.5 -77.2 -60.2 -47.2 2004 -43.7 -45.8 -48.9 -54.2 -64.0 -72.9 -77.8 -78.5 -74.3 -74.4 -64.1 -47.6 2005 -43.6 -45.2 -49.3 -57.3 -62.5 -73.7 -78.2 -79.2 -78.0 -72.9 -64.9 -45.1 2006 -44.5 -45.8 -48.6 -54.8 -66.2 -75.1 -76.7 -80.7 -80.4 -79.6 -72.5 -57.6 2007 -45.5 -45.6 -48.6 -56.0 -65.4 -70.7 -79.2 -78.7 -79.4 -76.4 -64.3 -52.0 2008 -44.1 -45.3 -49.8 -55.7 -62.6 -72.0 -78.9 -80.0 -79.9 -75.8 -66.4 -56.5 2009 -46.0 -45.4 -49.2 -56.6 -65.6 -71.6 -77.2 -79.2 -78.1 -77.5 -50.6 -48.0 2010 -45.4 -45.8 -49.4 -56.2 -66.0 -72.6 -78.4 -79.0 -78.2 -76.1 -68.2 -50.4 2011 -46.3 -45.9 -50.2 -55.8 -63.6 -73.7 -78.6 -78.6 -80.0 -72.2 -70.6 -55.3 2012 -45.7 -46.6 -48.6 -55.5 -65.6 -72.9 -76.4 -78.0 -76.9 -71.2 -49.8 -42.9 2013 -44.0 -44.2 -48.5 -57.1 -65.6 -73.3 -77.0 -79.4 -74.3 -69.9 -52.7 -43.8 2014 -44.4 -45.0 -49.5 -56.0 -64.1 -72.4 -79.0 -79.8 -78.6 -75.0 -63.2 -48.9 2015 -45.3 -45.2 -49.7 -56.4 -67.0 -73.0 -77.6 -80.8 -78.6 -79.3 -71.1 -57.3 2016 -46.0 -46.0 -50.2 -57.1 -66.2 -72.1 -78.3 -77.7 -76.6 -74.5 -59.4 -45.1 2017 -44.6 -45.6 -50.3 -57.9 -65.4 -72.8 -78.7 -78.7 -75.0 -74.4 -60.0 - 2018 -43.9 -45.6 -50.6 -55.0 -66.2 -73.0 -78.2 -81.1 -80.0 -75.4 -61.6 -42.6 2019 -44.5 -45.0 -48.8 -55.8 -64.1 -73.5 -76.9 -79.0 -68.7 -68.0 -50.2 -45.7 2020 -43.5 -43.9 -48.6 -56.2 -66.2 -74.8 -78.2 -79.7 -76.6 -78.4 -74.4 -61.3 2021 -43.0 -44.7 -50.5 -56.3 -66.5 -73.1 -78.3 -80.2 -79.5 -76.7 -71.7 -58.0 2022 -44.9 -45.9 -49.8 -56.8 -65.6 -74.3 -78.3 -80.8 -78.6 -78.9 -68.4 -58.4 2023 -44.5 -45.8 -49.5 -56.2 -64.6 -71.6 -79.8 -78.2 -77.3 -75.9 -68.9 -52.0 2024 -46.4 -46.4 -49.9 -55.3 - - - - - - - -