Grytviken 00Z msl_pressure 1959 991.6 988.8 1000.0 994.1 997.0 1000.2 995.6 997.7 999.9 1002.4 989.3 993.4 1960 994.6 998.6 1002.6 993.7 991.9 995.4 995.5 997.5 1005.7 998.2 989.9 992.5 1961 998.3 996.4 992.5 999.3 987.1 992.6 997.6 993.6 996.5 998.1 990.6 990.9 1962 997.8 996.9 994.5 1002.6 1000.0 1000.2 996.4 1000.8 1004.8 1009.0 990.0 991.7 1963 990.1 995.6 993.4 997.1 997.9 995.4 1004.0 1004.7 1002.3 990.1 1002.0 997.2 1964 999.1 994.1 998.3 987.5 996.8 995.1 1007.9 993.2 1008.3 1004.7 993.5 1000.7 1965 995.8 1003.5 1002.9 997.1 994.5 996.4 1000.3 999.9 996.1 992.5 997.7 988.6 1966 996.4 990.5 997.3 997.8 993.2 997.9 996.4 1002.8 996.0 992.1 991.0 993.3 1967 996.1 997.9 994.8 992.0 992.9 1003.2 1003.7 999.6 998.9 995.0 995.6 991.7 1968 993.2 996.9 997.0 999.0 991.6 994.0 1002.0 1004.1 1001.8 1003.5 997.1 994.5 1969 995.5 991.0 995.0 997.9 995.2 1000.0 1000.8 1002.0 1008.6 991.7 999.1 998.3 1970 995.3 994.9 993.0 991.9 990.2 1003.3 1004.3 1002.7 1012.6 1003.5 998.6 992.7 1971 994.5 993.2 997.2 998.1 999.0 1002.1 1006.9 998.9 1003.2 1004.2 995.0 988.7 1972 993.9 994.3 996.3 997.5 998.3 994.3 999.7 1002.3 995.2 995.6 989.5 1003.3 1973 988.4 993.0 1000.4 989.7 990.5 995.0 1003.9 994.0 997.8 1003.0 994.5 990.5 1974 996.2 1001.4 1003.0 991.7 993.8 1003.7 996.4 995.7 995.1 999.0 996.1 999.4 1975 992.3 989.6 995.2 1000.8 993.2 993.4 997.9 993.2 1000.6 1000.2 990.5 991.8 1976 992.0 999.7 997.6 992.2 997.7 989.4 993.9 993.8 995.4 1009.1 1009.5 995.1 1977 997.4 997.4 991.5 996.6 993.8 998.7 1003.0 1000.6 995.8 997.6 998.4 996.6 1978 991.5 1000.8 1000.7 996.5 1008.2 998.6 999.0 1000.7 1005.5 1001.8 987.8 992.2 1979 997.9 999.5 1000.7 994.0 994.4 987.6 998.1 999.8 999.0 993.7 994.2 999.8 1980 992.8 1002.8 993.6 994.3 999.8 992.3 994.3 996.3 997.7 995.5 995.9 996.2 1981 994.3 996.1 992.8 1003.1 996.8 996.8 1000.3 993.0 996.8 994.4 999.1 994.0 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - - - - - - - - 1989 - - - - - - - - - - - - 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - - - 1994 - - - - - - - - - - - - 1995 - - - - - - - - - - - - 1996 - - - - - - - - - - - - 1997 - - - - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - - 1006.8 991.2 988.2 - - - - 1001.5 2002 1000.5 994.0 990.4 993.8 993.3 990.7 997.2 1001.1 1007.7 993.5 - - 2003 990.5 1000.0 993.7 996.4 996.4 997.9 992.9 1002.6 1009.1 999.3 987.8 997.8 2004 998.3 1001.1 1000.1 993.8 992.6 996.2 999.2 998.5 993.1 1000.2 - 997.8 2005 994.0 997.2 996.4 989.1 997.3 998.3 999.6 1003.2 1006.1 1000.5 993.3 991.2 2006 997.3 1002.8 - - 1007.5 999.8 - 997.2 994.6 1000.9 993.5 998.0 2007 991.5 992.3 - 992.9 997.9 991.9 991.9 1000.1 1005.5 995.7 993.0 994.1 2008 995.8 999.2 997.5 990.9 1001.5 997.2 1005.5 999.1 1012.6 999.5 995.7 993.6 2009 999.9 - - - - - - - - - - -