Orcadas 12Z msl_pressure 1956 995.0 993.5 994.3 1001.7 1002.8 996.0 - - 994.0 990.9 988.1 988.7 1957 - 996.5 986.3 994.1 991.3 988.4 988.5 1004.0 996.3 - - 992.5 1958 986.9 - 995.8 991.4 993.0 991.9 1004.4 986.5 987.1 988.8 992.7 985.4 1959 981.8 - - - 985.2 1000.8 993.7 - 991.9 992.7 978.0 988.4 1960 991.7 993.5 990.8 983.3 - 998.3 991.8 - 998.9 - 976.5 990.9 1961 995.6 994.1 987.3 996.8 983.4 992.6 997.7 995.3 994.3 984.3 982.1 - 1962 994.3 991.9 990.8 993.4 1001.6 992.3 995.5 999.3 995.7 998.9 988.5 989.9 1963 983.1 990.4 982.4 990.4 992.9 993.7 996.4 999.0 - - - 991.0 1964 - - - - - - - - - - - - 1965 992.5 1001.4 998.5 991.9 988.2 990.5 996.5 1000.5 988.4 983.9 983.6 - 1966 991.0 988.4 990.8 991.1 989.0 997.5 993.9 991.2 989.9 990.2 992.9 990.5 1967 994.9 991.5 989.9 991.1 990.1 999.3 993.3 999.2 993.5 988.3 986.0 992.1 1968 - 990.8 990.5 995.1 987.9 986.3 988.5 990.9 989.1 991.3 989.4 990.0 1969 993.0 984.2 985.6 989.0 989.3 991.7 996.4 998.0 996.4 980.0 988.3 991.5 1970 990.0 988.9 992.1 984.3 988.0 998.3 999.6 996.9 999.4 994.8 993.0 988.5 1971 992.2 990.6 989.6 992.1 1000.5 997.3 1003.3 990.0 995.9 994.0 987.2 993.2 1972 994.4 990.8 993.0 991.6 995.4 995.3 995.4 1001.6 992.2 995.6 985.7 996.8 1973 987.4 987.6 984.5 981.3 989.7 997.1 1001.6 990.0 992.2 996.2 991.8 986.3 1974 990.1 991.9 993.4 989.3 992.9 1005.7 989.8 994.7 985.6 993.3 994.4 - 1975 - - - - - - - - - - - - 1976 992.8 991.5 990.9 987.8 987.3 992.3 985.1 983.3 987.5 996.3 1001.6 997.7 1977 993.1 989.1 986.2 993.3 984.4 995.3 998.8 997.0 984.2 988.5 990.4 994.3 1978 988.6 993.3 994.7 993.1 1005.0 987.6 1000.4 987.3 996.4 988.1 990.3 987.0 1979 995.2 992.2 994.8 985.7 995.8 987.6 991.5 991.7 993.8 986.7 991.9 998.9 1980 - 995.0 989.5 990.9 997.7 986.6 995.7 - 993.4 990.5 987.6 993.4 1981 990.3 988.2 997.0 996.8 994.1 992.0 998.2 989.8 990.5 990.4 986.1 986.8 1982 994.3 990.0 986.4 985.7 994.2 1003.0 987.8 995.6 990.5 985.5 986.4 998.2 1983 995.5 986.1 991.4 995.6 999.0 993.0 992.6 994.1 994.9 986.8 988.0 988.4 1984 986.3 990.8 995.5 987.6 991.6 996.8 1001.3 994.7 1004.1 992.5 985.6 1000.4 1985 998.6 985.6 990.3 992.3 997.7 1004.9 988.5 989.2 994.3 995.1 990.3 983.6 1986 986.2 988.7 993.7 991.9 998.0 988.0 987.6 990.0 988.3 993.9 983.7 985.6 1987 992.0 994.3 987.3 988.7 996.7 990.0 991.0 1001.5 989.8 990.0 986.2 991.3 1988 991.9 994.5 989.3 992.8 1000.4 998.0 995.2 997.1 994.6 1004.9 984.3 987.8 1989 991.7 992.8 995.5 990.3 991.9 986.2 1001.1 1001.8 993.4 989.4 987.9 993.2 1990 995.7 993.1 989.7 986.3 1004.0 990.0 998.6 985.2 995.9 981.8 980.9 986.6 1991 994.6 995.0 992.6 994.4 987.7 990.0 993.3 992.3 1001.4 986.7 992.1 1000.1 1992 995.1 987.6 991.0 1000.7 998.4 1001.3 998.1 995.7 993.5 991.0 996.1 1003.0 1993 997.9 994.4 989.4 989.6 992.1 993.8 998.5 991.3 987.4 985.3 990.3 986.7 1994 985.7 991.1 992.6 996.8 994.5 1000.4 994.8 995.7 986.9 988.9 998.5 990.8 1995 996.8 994.3 984.7 997.3 995.2 986.3 990.1 994.0 992.0 995.7 983.4 986.5 1996 994.6 996.9 987.2 993.5 988.2 992.8 994.0 991.0 1004.6 990.2 983.0 992.3 1997 991.9 994.2 991.0 986.3 999.0 1000.7 992.0 987.5 989.7 992.0 995.7 998.7 1998 987.1 990.3 993.1 996.8 995.9 996.7 982.2 989.9 992.8 987.0 987.9 983.4 1999 992.9 989.2 999.6 991.2 995.7 998.5 993.6 987.9 992.5 986.1 992.5 987.2 2000 984.2 997.2 1004.8 992.0 998.8 1000.5 1007.4 991.8 1002.6 990.0 995.0 991.4 2001 994.6 988.7 990.8 989.2 1003.8 991.7 991.7 988.4 992.7 991.8 987.7 990.6 2002 992.5 991.2 990.6 991.4 992.7 987.8 996.0 1000.5 1006.1 993.5 990.4 994.4 2003 992.7 992.4 994.0 994.2 994.9 1000.4 987.9 992.8 999.5 988.1 983.4 995.1 2004 990.0 998.4 992.5 993.7 992.2 991.1 997.3 992.4 983.5 992.4 997.9 995.0 2005 989.8 990.0 993.9 984.9 996.0 995.7 1000.4 994.8 1002.8 997.4 989.5 991.2 2006 993.2 999.2 988.5 998.0 994.5 998.2 995.6 1002.0 992.2 995.5 986.5 989.3 2007 988.7 990.0 988.4 991.0 1000.4 990.0 995.4 993.2 1001.6 987.9 992.8 989.3 2008 990.4 993.4 991.7 990.6 999.2 995.8 1001.2 995.4 1006.5 992.3 986.3 981.0 2009 990.2 989.3 992.8 990.4 991.7 990.0 992.5 1006.2 995.2 983.6 986.1 990.9 2010 994.0 992.8 990.3 987.1 989.9 992.8 995.1 995.8 994.8 995.5 996.2 983.6 2011 991.4 995.9 996.2 986.3 995.9 995.5 997.2 1002.7 996.8 992.2 994.9 989.8 2012 985.8 985.0 991.4 996.2 999.4 981.7 996.3 995.0 995.8 983.8 988.1 988.8 2013 988.8 988.3 997.0 995.9 987.5 986.8 989.3 993.9 998.7 987.4 982.7 984.6 2014 992.2 989.2 988.6 999.5 998.2 996.9 997.5 996.9 998.2 984.8 983.2 982.6 2015 990.7 987.1 990.9 988.9 990.1 985.8 986.7 987.9 982.0 992.2 985.4 986.1 2016 987.3 985.4 989.5 983.4 997.7 993.9 995.5 992.2 997.5 994.4 984.8 987.8 2017 987.2 997.0 1002.3 992.5 994.6 989.0 990.2 992.3 983.5 987.4 987.0 982.3 2018 989.7 988.3 991.3 993.7 992.9 996.1 995.8 995.4 998.3 996.8 986.4 984.8 2019 985.5 985.3 992.7 989.4 988.7 994.4 1004.8 995.6 992.0 993.9 991.1 992.8 2020 994.1 995.1 990.9 990.4 - 994.7 1001.7 995.2 991.1 985.3 987.7 987.7 2021 989.2 991.9 990.2 990.1 998.4 1000.5 997.0 990.6 992.5 987.9 990.5 985.8 2022 988.6 - 997.9 994.0 1006.7 - 1004.0 - - - - 996.9 2023 999.5 - 986.3 - 991.4 - - - 997.9 985.9 988.6 985.0 2024 988.8 989.6 991.6 985.9 - - - - - - - -