Mawson 12Z station_level_pressure 1954 - - 990.3 981.8 989.7 991.2 999.0 990.0 979.0 980.4 989.6 993.7 1955 984.6 987.3 989.7 993.0 988.1 984.2 987.0 1000.4 978.7 987.3 989.7 992.3 1956 995.5 987.8 990.0 990.1 991.4 989.3 991.0 986.6 985.9 978.3 987.1 994.4 1957 989.5 988.3 989.1 990.0 994.4 994.1 988.7 989.7 984.1 982.4 992.8 994.0 1958 990.4 992.2 989.2 989.4 994.8 991.1 986.0 981.8 980.6 985.8 986.8 981.2 1959 989.5 985.8 986.4 994.0 990.9 996.2 988.6 991.6 981.9 985.3 980.0 989.1 1960 986.6 984.7 981.2 990.2 991.5 989.1 987.3 986.4 976.6 986.1 982.3 981.3 1961 986.3 988.5 984.6 988.1 986.8 991.1 982.0 982.7 990.5 984.4 986.2 981.9 1962 984.6 984.4 984.8 984.3 989.7 999.6 985.1 980.8 987.2 979.4 988.0 983.8 1963 981.6 986.0 983.2 988.6 991.5 989.1 985.2 997.9 989.3 982.8 977.8 988.5 1964 995.5 988.1 984.3 984.3 980.8 998.2 1004.1 982.6 979.1 979.0 986.4 985.2 1965 990.9 996.3 985.1 991.0 993.9 993.0 987.7 987.5 984.1 982.7 976.3 992.0 1966 985.5 991.5 990.7 987.6 990.3 987.3 990.2 980.0 981.4 976.8 989.5 990.1 1967 992.5 993.8 987.0 989.5 992.1 990.8 987.3 987.3 982.5 987.1 989.2 986.6 1968 989.0 990.0 991.1 988.0 993.8 991.6 982.8 985.6 979.8 983.6 986.9 988.8 1969 995.8 992.4 986.5 993.2 990.9 1000.4 981.2 979.0 984.1 988.1 985.9 985.6 1970 984.9 986.9 986.1 989.6 986.0 990.7 986.3 980.7 986.2 986.7 986.7 990.4 1971 992.7 988.0 986.9 992.7 995.5 984.3 988.1 984.3 987.2 983.2 986.2 989.3 1972 990.9 990.3 993.1 992.5 993.1 993.7 989.7 991.7 990.5 983.5 980.9 991.1 1973 991.7 987.4 981.8 988.7 993.9 989.9 986.2 980.6 981.9 981.1 980.3 982.9 1974 987.4 982.3 984.7 990.9 993.4 986.5 987.9 993.9 980.9 981.9 987.6 993.1 1975 989.0 989.8 990.1 984.3 996.0 991.8 993.3 983.8 981.5 980.4 981.3 990.4 1976 988.7 986.6 988.1 980.8 984.5 987.8 981.6 983.9 979.2 976.3 989.9 998.5 1977 990.8 988.1 989.2 989.7 991.8 991.7 992.2 990.1 979.6 980.2 983.0 985.6 1978 983.7 987.4 988.4 986.4 989.9 984.8 995.1 979.4 985.8 986.9 983.3 987.0 1979 986.2 986.8 983.7 990.3 984.3 984.6 978.5 982.1 978.1 981.4 985.7 990.6 1980 990.5 988.7 990.1 990.6 991.5 986.1 987.8 991.1 986.1 981.9 986.4 988.6 1981 988.0 986.3 992.1 996.5 990.0 986.6 995.4 990.6 985.4 981.5 981.6 981.9 1982 990.6 984.2 983.4 985.6 986.5 988.7 986.4 985.7 981.0 985.4 989.5 995.3 1983 989.8 990.6 987.8 982.9 990.8 990.5 984.9 982.3 981.5 979.6 982.0 982.9 1984 989.9 989.2 986.2 986.1 993.1 989.9 985.7 988.3 981.6 980.5 984.4 993.4 1985 992.8 987.4 985.9 991.0 990.4 990.8 980.6 981.6 982.8 980.3 978.0 982.6 1986 988.7 992.0 991.2 985.4 991.3 991.9 981.1 986.3 973.5 974.7 983.2 983.4 1987 993.4 988.6 987.0 990.2 990.0 989.3 987.5 976.6 986.6 978.9 979.8 985.1 1988 988.4 985.1 986.7 984.9 992.9 999.2 982.2 983.2 986.8 990.6 981.8 985.3 1989 990.2 984.6 987.5 992.8 978.2 982.8 981.6 983.5 982.7 980.8 989.3 985.7 1990 989.6 984.6 989.0 992.6 997.0 992.2 1000.9 980.6 974.5 986.8 985.0 984.3 1991 982.7 990.6 981.6 983.0 987.5 991.9 990.2 981.5 987.1 978.5 986.0 995.3 1992 988.3 991.4 989.7 991.3 997.2 997.9 985.9 980.7 981.7 982.6 977.4 985.9 1993 992.7 982.4 988.1 987.8 985.0 985.1 981.6 980.2 982.7 980.2 983.7 984.6 1994 985.9 983.4 982.4 991.1 993.8 995.6 989.5 983.4 983.3 982.3 989.9 982.7 1995 984.8 987.7 986.9 987.2 985.1 989.7 990.2 988.9 972.2 987.0 987.2 983.1 1996 988.0 990.0 984.1 988.2 989.3 988.0 993.0 985.2 996.6 980.0 989.4 988.3 1997 988.5 986.0 978.3 993.9 985.0 993.6 979.6 982.6 984.7 984.0 991.9 989.7 1998 985.6 984.5 986.4 977.4 986.1 983.4 983.6 976.8 988.1 984.9 975.5 980.3 1999 987.1 987.3 987.1 984.7 983.3 997.1 985.3 983.0 986.5 973.1 982.7 977.9 2000 979.6 983.0 983.8 986.8 983.7 989.0 987.2 984.4 989.4 981.1 988.8 992.7 2001 985.2 990.0 987.2 982.5 989.2 988.7 989.3 983.0 981.7 980.5 979.0 978.3 2002 984.0 980.5 992.0 987.4 996.3 988.4 991.3 983.1 986.9 992.4 985.3 980.6 2003 991.4 988.6 986.6 985.1 990.4 996.0 988.2 980.7 981.7 985.5 985.8 959.5 2004 985.0 992.2 981.0 985.3 987.4 983.8 980.1 978.0 979.9 984.0 981.8 987.6 2005 987.3 983.4 985.0 983.2 990.1 994.4 988.5 982.8 979.9 981.7 983.5 995.1 2006 985.4 987.6 984.0 987.0 986.5 984.4 977.4 997.9 984.5 978.5 979.1 985.4 2007 986.4 985.0 990.5 990.4 986.4 994.8 996.6 985.6 986.8 984.6 983.3 978.7 2008 985.2 980.5 988.2 990.6 989.8 987.4 984.8 984.2 984.5 978.2 979.2 981.4 2009 986.2 - - - - - - - - - - -