Syowa 00Z 30hPa temperature 1968 - - -50.6 -61.2 - -80.5 -84.0 -82.9 -72.6 -47.1 -29.9 -33.0 1969 -36.3 -41.2 -51.1 -63.0 -70.0 -83.0 -84.0 -81.5 -76.4 -65.5 -36.7 -33.1 1970 -35.4 -40.8 -50.1 -61.6 -72.4 -77.4 -85.4 -80.5 -75.5 -58.1 -36.3 -33.1 1971 -36.9 -41.2 -50.7 -62.6 -66.3 -78.2 -84.1 -77.0 -69.8 -56.7 -37.1 -37.3 1972 -36.2 -40.6 -49.0 -62.8 -74.7 -81.8 -84.1 -78.9 -80.2 -54.9 -35.9 -35.1 1973 -37.2 -42.1 -51.3 -60.2 -72.6 -79.3 -82.9 -80.6 -63.0 -61.5 -34.8 -34.7 1974 -37.0 -41.3 -51.6 -61.8 -73.0 -80.4 -82.8 -83.8 -64.9 -49.2 -30.4 -33.6 1975 -35.4 -42.0 -51.7 -62.3 -74.0 -82.7 -82.6 -72.6 -69.3 -60.9 -39.8 -34.9 1976 -37.1 -41.0 -50.7 -60.8 -75.5 -79.9 - - -72.0 -62.1 -35.5 -35.7 1977 -36.4 -41.2 -52.1 -62.3 -71.0 -79.1 -87.0 -82.9 -71.6 -52.4 -30.0 -32.9 1978 -34.3 -39.8 -48.7 -61.8 -73.0 -80.1 -84.9 -80.7 -70.6 -52.9 -33.2 -35.6 1979 -36.8 -40.6 -51.2 -61.9 -72.7 -80.4 -84.4 -81.1 -68.9 -33.0 -36.6 -35.6 1980 -35.7 -42.3 -48.3 -56.1 -66.6 -77.4 -83.6 -81.2 -74.6 -58.0 -37.0 -35.0 1981 -39.0 -44.2 -51.6 -60.3 -72.0 -78.1 -83.1 -80.4 -66.1 -52.5 -40.6 -36.9 1982 -39.4 -41.9 -52.1 -60.6 -74.5 -79.8 -82.9 -83.0 -71.1 -59.6 -37.0 -36.4 1983 -36.8 -41.8 -51.4 -60.9 -69.4 -80.7 -83.8 -81.6 -67.8 -60.8 -37.6 -37.3 1984 -38.1 -42.2 -50.7 -61.9 -69.2 -80.2 -86.0 -82.2 -72.6 -51.9 -35.0 -36.8 1985 -39.3 -44.0 -52.9 -62.4 -73.8 -84.1 -82.6 -81.4 -76.1 -62.4 -40.9 -34.3 1986 -38.6 -43.8 -51.3 -62.5 -66.4 -80.8 -82.4 -80.8 -72.9 -53.4 -34.6 -33.4 1987 -38.8 -42.3 -49.7 -60.4 -75.8 -81.4 -84.3 -85.3 -77.3 -64.7 -45.6 -34.5 1988 -37.5 -42.6 -52.2 -63.2 -73.1 -81.6 -82.3 -71.6 -52.5 -41.2 -33.5 -37.4 1989 -39.0 -43.0 -52.5 -62.8 -72.2 -81.2 -85.0 -84.3 -73.1 -57.6 -39.2 -35.9 1990 -38.2 -41.8 -52.0 -61.8 -70.2 -83.4 -85.5 -81.7 -77.3 -55.3 -42.3 -35.5 1991 -37.6 -43.0 -51.2 -60.5 -73.4 -78.9 -82.3 -80.3 -70.5 -39.1 -35.7 -37.7 1992 -38.4 -42.0 -50.6 -61.9 -70.7 -75.6 -79.0 -82.1 -73.8 -58.2 -39.4 -35.2 1993 -37.0 -42.1 -48.4 -61.8 -74.7 -83.5 -84.7 -82.5 -72.1 -56.5 -36.0 -33.2 1994 -37.4 -44.6 -52.2 -62.0 -71.5 -77.3 -85.3 -85.5 -78.5 -52.1 -29.0 -34.3 1995 -37.3 -42.6 -52.0 -61.4 -73.9 -82.3 -86.6 -80.0 -66.5 -66.5 -35.9 -35.4 1996 -37.3 -43.3 -52.1 -62.1 -76.6 -79.1 -83.2 -80.0 -72.5 -68.3 -47.4 -33.5 1997 -38.1 -43.1 -51.3 -63.5 -72.5 -82.9 -85.1 -78.9 -70.8 -64.7 -36.2 -36.8 1998 -38.3 -41.4 -51.5 -61.7 -72.8 -78.8 -86.7 -84.5 -76.6 -61.6 -40.9 -35.4 1999 -37.6 -43.4 -51.4 -62.7 -73.5 -82.1 -85.2 -84.3 -70.5 -61.5 -46.9 -32.8 2000 -37.3 -42.3 -51.2 -62.3 -74.0 -82.5 -86.1 -82.3 -67.4 -46.9 -37.5 -37.8 2001 -38.4 -43.9 -49.1 -62.4 -72.5 -80.6 -85.7 -85.5 -77.0 -65.1 -46.3 -33.5 2002 -37.5 -42.2 -48.5 -60.0 -67.2 -71.0 -81.5 -81.8 -60.6 -47.4 -36.1 -38.7 2003 -39.4 -43.9 -51.3 -62.5 -75.4 -82.2 -87.1 -83.7 -76.8 -59.0 -37.9 -37.2 2004 -38.3 -43.2 -50.2 -59.9 -72.4 -82.9 -85.0 -77.4 -66.4 -54.7 -36.4 -35.0 2005 -38.7 -43.2 -51.6 -64.4 -71.1 -80.4 -85.5 -81.4 -75.1 -56.2 -32.4 -39.2 2006 -38.7 -42.5 -48.8 -60.7 -75.5 -83.7 -83.5 -86.1 -78.6 -72.7 -48.7 -30.7 2007 -37.2 -42.3 -50.3 -62.8 -74.2 -81.0 -86.0 -82.4 -76.2 -60.3 -40.4 -36.1 2008 -37.6 -41.8 -51.7 -60.9 -69.1 -82.7 -87.3 -85.7 -78.8 -57.0 -42.1 -34.8 2009 -37.7 -42.6 -51.6 -64.4 -74.0 -82.3 -85.8 -85.7 -74.5 -65.8 -39.7 -33.2 2010 -38.6 -43.8 -51.2 -60.4 -75.5 -81.9 -83.5 -82.3 -76.1 -61.9 -44.3 -40.2 2011 -38.5 -43.8 -51.4 -61.7 -73.4 -84.4 -87.4 -84.3 -80.1 -55.1 -41.8 -35.5 2012 -36.4 -42.2 -50.1 -62.8 -74.6 -82.6 -82.6 -78.5 -70.0 -46.5 -40.4 -38.3 2013 -38.3 -42.3 -51.6 -64.6 -74.0 -83.8 -85.9 -82.0 -61.5 -45.8 -41.7 -38.9 2014 -39.5 -42.2 -51.5 -62.4 -74.7 -82.8 -85.4 -83.6 -77.1 -60.2 -38.1 -35.3 2015 -38.2 -43.2 -51.5 -64.2 -76.0 -81.7 -85.5 -84.7 -74.5 -65.2 -41.1 -36.6 2016 -36.2 -44.0 -52.4 -64.6 -73.2 -81.4 -86.3 -82.2 -75.0 -58.7 -36.9 -36.7 2017 -39.5 -43.5 -53.0 -62.3 -75.4 -82.3 -85.6 -81.3 -65.3 -56.9 -43.9 -38.3 2018 -39.5 -44.0 -53.1 -58.8 -74.8 -83.9 -86.4 -85.3 -78.7 -59.4 -45.9 -37.9 2019 -39.2 -42.3 -51.0 -60.9 -73.9 -83.4 -81.8 -80.0 -42.4 -52.7 -38.2 -39.2 2020 -39.0 -41.9 -51.8 -60.7 -72.6 -84.7 -82.8 -80.4 -73.4 -72.2 -56.3 -37.3 2021 -37.8 -40.9 -54.4 -60.7 -74.8 -82.8 -86.5 -82.5 -79.4 -65.1 -48.1 -35.0 2022 -39.2 -42.4 -51.7 -63.4 -74.8 -83.9 -86.7 -86.1 -79.0 -67.7 -42.7 -33.8 2023 -38.4 -43.9 -53.4 -63.7 -74.4 -83.1 -86.2 -82.7 -71.5 -61.3 -47.0 -36.0 2024 -38.6 -44.7 -52.6 -61.6 - - - - - - - -