Syowa 12Z 100hPa temperature 1959 - - - -53.3 - - - - - -69.3 - - 1960 - - -45.8 -53.4 -63.9 - - - - -66.7 -50.9 -39.9 1961 - -41.7 -44.9 -52.6 -60.8 -70.3 -76.7 -78.0 -75.8 -66.5 -53.0 -42.1 1962 - - - - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - -42.0 -44.7 -53.2 -58.2 -70.2 -76.9 -78.9 -75.6 -64.6 -47.6 -39.8 1967 -40.8 -43.1 -46.9 -54.2 -64.8 -71.2 -78.4 -78.5 -72.9 -61.1 -47.5 -40.5 1968 -40.4 -42.4 - - - - - - - - - - 1969 - - - - - - - - - - - - 1970 - - - - - - - - - - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 - - -47.7 -55.0 -63.3 -71.5 -76.0 -78.7 -71.5 -63.2 -46.0 -40.3 1975 -39.2 -41.7 -46.5 -55.3 -65.4 -73.5 -76.5 -74.0 -73.4 -65.9 -49.3 -41.7 1976 -42.0 -41.6 -46.8 -53.7 -64.2 -72.4 -77.8 -79.0 -73.9 -69.5 -49.2 -42.9 1977 -41.3 -43.4 -47.9 -55.7 -62.9 -69.1 -79.3 -77.7 -72.7 -62.7 -52.6 -39.6 1978 -38.6 -41.7 -45.8 -52.9 -64.0 -71.0 -77.0 -78.0 -72.9 -64.8 -49.5 -40.4 1979 -40.2 -41.9 -46.9 -53.6 -65.6 -72.2 -77.5 -77.0 -75.1 -59.2 -47.6 -40.4 1980 -39.5 -42.6 -47.8 -52.1 -60.6 -68.1 -76.2 -75.7 -76.2 -68.5 -54.6 -41.3 1981 -42.3 -45.1 -49.0 -57.0 -64.2 -70.2 -76.1 -77.2 -73.3 -66.1 -56.0 -42.4 1982 -44.0 -44.3 -48.8 -55.5 -67.0 -72.3 -77.3 -78.8 -76.6 -71.6 -51.1 -43.6 1983 -41.8 -44.0 -49.2 -56.3 -65.3 -73.3 -78.0 -79.1 -74.0 -70.6 -56.7 -42.2 1984 -43.4 -44.6 -49.3 -56.2 -63.8 -71.7 -78.3 -79.8 -76.1 -69.4 -59.3 -45.8 1985 -42.9 -45.3 -49.9 -56.1 -64.5 -75.7 -76.7 -78.5 -78.4 -74.9 -64.7 -48.2 1986 -44.5 -45.5 -49.6 -56.9 -62.9 -71.1 -75.4 -77.5 -77.0 -66.9 -61.4 -48.5 1987 -43.0 -45.5 -48.5 -55.6 -66.6 -73.4 -76.8 -81.4 -78.2 -74.6 -66.4 -48.1 1988 -43.7 -45.3 -50.8 -57.1 -65.6 -71.2 -78.0 -76.1 -69.3 -64.8 -51.4 -41.7 1989 -43.4 -45.4 -49.5 -56.8 -63.4 -72.9 -78.2 -80.9 -76.3 -72.9 -61.9 -43.8 1990 -42.9 -44.5 -49.4 -55.8 -63.1 -74.4 -77.1 -78.0 -78.2 -70.2 -59.3 -49.1 1991 -43.9 -46.6 -48.9 -55.6 -64.8 -70.5 -76.2 -78.3 -76.3 -64.2 -58.8 -44.7 1992 -43.6 -44.2 -50.6 -58.8 -63.5 -69.9 -75.0 -78.8 -77.4 -75.0 -61.4 -45.7 1993 -44.6 -44.4 -49.1 -56.8 -67.0 -75.1 -77.2 -79.4 -76.7 -73.3 -64.3 -49.8 1994 -43.5 -45.6 -50.2 -55.7 -63.7 -70.3 -77.8 -80.6 -78.9 -73.1 -59.7 -44.4 1995 -42.5 -45.1 -49.5 -56.4 -65.1 -74.0 -79.1 -77.2 -74.4 -77.0 -66.2 -53.9 1996 -43.6 -46.8 -49.3 -56.5 -66.3 -71.7 -77.3 -77.2 -77.2 -76.3 -68.1 -51.0 1997 -42.8 -44.7 -49.3 -56.9 -64.2 -75.3 -77.7 -78.5 -73.9 -77.1 -57.6 -47.7 1998 -43.7 -45.2 -49.5 -56.0 -65.4 -70.6 -77.9 -80.5 -79.4 -75.4 -68.5 -55.6 1999 -45.4 -46.2 -49.6 -57.4 -63.8 -73.3 -77.8 -80.2 -77.1 -74.6 -70.6 -60.8 2000 -43.8 -44.8 -50.1 -56.3 -65.0 -74.1 -79.0 -80.8 -77.8 -71.7 -63.4 -42.8 2001 -42.6 -45.0 -48.8 -56.0 -66.0 -72.7 -78.5 -81.1 -79.1 -78.8 -69.7 -49.8 2002 -42.4 -44.2 -48.9 -55.4 -61.4 -67.2 -75.3 -78.6 -72.7 -58.8 -49.6 -43.3 2003 -44.3 -44.9 -48.8 -56.3 -66.7 -72.3 -78.9 -80.6 -79.8 -76.9 -59.4 -46.4 2004 -43.3 -45.3 -48.8 -54.2 -64.0 -73.1 -77.8 -78.8 -74.1 -74.1 -62.8 -46.6 2005 -43.0 -44.7 -49.2 -57.6 -63.3 -73.7 -78.6 -79.5 -78.0 -72.2 -64.3 -44.3 2006 -43.9 -45.6 -48.7 -55.5 -66.3 -75.3 -76.8 -81.4 -80.5 -79.2 -71.5 -56.5 2007 -45.0 -45.4 -48.6 -56.9 -65.3 -71.2 -79.2 -79.2 -79.7 -76.5 -63.0 -51.2 2008 -43.8 -45.1 -49.7 -56.0 -61.9 -72.9 -79.0 -80.5 -79.9 -75.7 -65.7 -55.7 2009 -45.2 -45.1 -49.3 -57.1 -64.3 -71.7 -77.0 -79.5 -78.4 -77.4 -49.6 -47.4 2010 -44.7 -45.3 -49.4 -56.9 -66.2 -72.7 -78.3 -79.2 -77.9 -76.3 -66.9 -49.7 2011 -45.6 -45.9 -50.4 -56.0 -63.7 -74.0 -78.7 -78.6 -80.1 -71.9 -69.4 -54.0 2012 -44.9 -46.7 -48.5 -56.1 -65.5 -72.5 -76.1 -78.5 -77.1 -71.6 -48.8 -42.3 2013 -43.1 -44.1 -48.7 -57.8 -65.8 -73.5 -77.3 -79.9 -74.6 -70.3 -50.8 -43.4 2014 -43.9 -44.7 -49.5 -56.6 -64.6 -72.7 -79.4 -80.4 -78.8 -75.0 -62.7 -47.8 2015 -44.7 -45.2 -49.8 -56.5 -67.1 -73.2 -78.5 -80.9 -78.4 -79.2 -70.4 -57.5 2016 -45.5 -45.8 -50.5 -57.9 -66.1 -72.0 -78.3 -79.5 -76.3 -74.3 -59.0 -44.2 2017 -44.0 -44.8 -50.1 -57.3 -65.8 -74.1 -78.7 -79.6 -74.3 -73.2 -58.6 -43.5 2018 -44.2 -45.9 -51.0 -55.7 -66.2 -72.8 -78.2 -81.4 -79.3 -75.1 -62.3 -42.0 2019 -44.2 -45.3 -48.5 -56.5 -64.7 -73.5 -77.1 -79.5 -69.4 -67.6 -50.1 -45.1 2020 -43.1 -43.7 -49.1 -56.7 -65.9 -74.7 -78.2 -79.9 -76.8 -78.8 -74.1 -60.4 2021 -42.6 -44.6 -50.5 -56.6 -66.9 -73.2 -78.5 -80.4 -79.8 -75.9 -71.0 -56.8 2022 -44.8 -45.9 -49.7 -57.2 -65.8 -74.6 -78.4 -81.2 -79.0 -78.0 -67.5 -57.5 2023 -43.7 -45.7 -49.8 -57.8 -65.2 -71.7 -80.0 -78.4 -78.0 -76.1 -68.1 -50.9 2024 -45.9 -46.4 -51.0 -56.2 - - - - - - - -