Signy 12Z msl_pressure 1954 984.2 986.3 991.5 990.0 991.0 997.0 993.8 993.6 991.3 995.9 991.3 999.0 1955 993.5 985.8 988.7 987.4 993.6 991.0 991.8 998.1 998.0 995.6 984.2 989.1 1956 994.9 992.9 993.8 1001.7 1003.1 996.0 1000.4 1001.7 994.1 991.0 988.9 989.3 1957 990.2 996.9 986.5 994.8 992.0 989.6 989.0 1005.0 996.2 986.0 1000.0 993.1 1958 988.3 995.2 996.3 991.5 994.2 992.2 1004.8 986.9 987.9 989.1 993.4 985.9 1959 982.5 986.0 991.2 990.5 985.7 1001.6 993.2 995.5 991.5 993.9 978.8 988.8 1960 992.2 993.1 992.1 983.2 992.9 998.8 992.1 986.7 999.0 991.0 977.3 991.5 1961 993.4 993.6 986.9 996.3 983.1 992.1 997.8 995.1 993.9 983.9 982.0 984.2 1962 993.0 991.1 989.6 992.1 1000.7 990.8 993.9 998.2 994.5 997.9 987.5 988.2 1963 983.2 989.8 982.8 990.5 993.0 994.2 996.5 999.4 996.7 987.0 995.1 991.2 1964 996.8 989.1 993.8 989.9 991.5 993.6 1010.0 987.1 996.7 992.7 991.1 998.2 1965 992.1 1000.7 998.4 991.7 987.6 990.2 996.6 1000.1 987.6 983.4 983.5 989.4 1966 990.7 988.8 990.9 992.1 989.7 998.0 994.4 991.9 990.6 990.7 993.3 991.2 1967 996.0 992.5 990.8 992.2 991.7 1000.3 994.3 1000.4 994.1 989.6 987.1 992.9 1968 988.0 992.4 991.9 996.8 989.3 987.7 989.9 992.3 990.6 992.4 990.2 991.2 1969 994.1 985.5 987.8 990.6 991.6 993.8 998.4 999.6 997.5 981.5 989.5 992.2 1970 - - - - - - - - - - - - 1971 - - - - - - - - - - - - 1972 - - - - - - - - - - - - 1973 - - - - - - - - - - - - 1974 - - - - - - - - - - - - 1975 - - - - - - - - - - - - 1976 - - - - - - - - - - - - 1977 - - - - - - - - - - - - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 994.6 991.6 987.7 987.2 995.2 1004.1 989.1 996.4 992.4 986.3 987.8 998.9 1983 996.2 986.4 991.6 996.2 999.4 992.2 992.2 994.0 995.2 987.3 988.3 987.7 1984 986.1 990.2 995.1 987.3 990.6 996.7 1000.5 993.8 1002.8 991.9 984.6 999.5 1985 997.6 985.2 990.2 991.5 997.4 1004.9 988.5 988.2 993.2 994.6 989.4 982.8 1986 985.3 987.2 992.6 991.0 997.4 987.2 986.9 988.8 987.7 993.4 982.8 984.6 1987 990.9 - 986.5 988.4 995.4 989.8 990.1 1000.7 989.1 989.1 986.8 989.7 1988 991.3 994.3 - - - - 994.6 997.7 994.5 1003.9 984.6 - 1989 991.3 992.9 994.9 990.3 991.5 986.5 1000.8 1000.9 993.9 988.6 986.7 992.1 1990 994.9 993.2 989.1 985.9 1003.5 989.3 997.1 984.3 995.1 981.0 979.6 985.9 1991 993.9 994.0 991.7 994.2 986.5 990.0 992.7 992.4 1001.6 - 991.7 999.0 1992 994.5 987.9 990.2 999.4 997.6 1001.6 998.1 994.8 992.2 990.0 995.3 1001.5 1993 996.5 993.9 988.9 988.5 991.4 992.8 997.9 990.6 986.4 985.0 990.1 986.2 1994 985.0 990.0 992.6 995.0 993.2 998.5 993.5 994.2 985.9 988.1 - 991.5 1995 997.6 995.3 986.1 997.8 995.8 988.1 - 995.5 993.2 996.3 985.0 985.9 1996 - - - - - - - - - - - - 1997 - - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - - - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -