Palmer 12Z msl_pressure 1976 - - - - - - - - - - - - 1977 - - - - - - - - - - - - 1978 - - - - - - - - - - - - 1979 993.6 986.9 992.9 981.6 - - - - 991.0 984.4 993.0 996.0 1980 990.2 - - - - - - - - - - - 1981 988.0 980.9 998.1 996.2 992.2 995.0 995.4 987.1 990.4 988.5 978.5 991.9 1982 - - - 981.7 990.1 999.7 989.0 994.7 992.7 - 989.6 992.3 1983 992.2 987.1 987.4 998.9 997.5 991.3 985.3 - 990.9 984.0 979.3 987.8 1984 - - - - - 996.6 998.8 - - - - - 1985 992.0 - 988.5 986.1 994.1 1007.1 - - - - - 980.5 1986 984.7 - 985.0 987.3 997.4 - - 982.1 983.9 990.3 981.7 983.6 1987 - 990.1 982.4 984.9 - - 991.9 - - 986.6 - - 1988 - 988.4 984.9 - - 992.9 990.7 1000.7 - - 982.6 - 1989 - - - - - - - - - - 984.4 992.0 1990 992.1 991.1 982.9 - - 982.6 990.8 979.2 - - - - 1991 - - - - - - - - - 984.7 - - 1992 - - - - - - - - - - - - 1993 - - 987.8 - - 992.2 - - 983.0 984.6 981.8 984.1 1994 983.2 - - 993.0 - 995.3 993.8 - - 989.3 991.4 - 1995 - - - 988.2 - 989.6 989.3 995.1 - 992.2 981.9 - 1996 - - - - - - - - 992.3 - - - 1997 - - 988.2 - - - - - - - - - 1998 - - - - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - 983.9 - - - - - - - 980.1 2002 - - 992.1 986.0 994.6 991.8 - 999.9 1002.4 988.1 989.6 987.5 2003 992.5 984.7 996.8 992.8 989.4 997.2 981.9 983.7 988.8 984.1 984.7 995.4 2004 986.3 996.5 986.6 991.9 993.4 988.9 988.5 990.7 979.0 988.9 993.0 991.1 2005 986.5 984.8 989.3 983.0 994.4 996.6 997.1 991.9 999.1 990.6 992.1 994.5 2006 991.8 996.1 978.2 - - 997.8 993.3 1000.0 990.1 988.7 981.6 984.1 2007 991.3 988.0 988.4 990.3 998.5 991.3 993.8 984.7 995.0 982.8 990.3 983.6 2008 986.0 987.6 989.2 984.9 990.4 990.8 994.7 989.7 996.5 982.2 981.9 981.3 2009 981.9 986.2 986.1 990.4 985.8 987.6 993.0 1000.5 987.4 976.1 985.7 986.4 2010 990.5 993.8 986.7 983.6 983.8 983.9 990.6 989.6 989.3 982.4 984.7 981.1 2011 992.2 986.8 990.3 985.8 986.5 991.5 999.4 1003.9 992.8 985.1 986.6 984.5 2012 985.4 983.7 989.1 993.7 991.3 976.5 986.4 985.7 992.5 982.6 985.3 993.8 2013 988.1 987.9 995.7 983.7 986.3 979.5 984.8 990.9 996.4 981.9 979.4 987.9 2014 990.9 989.5 982.6 995.3 991.8 991.9 992.4 995.9 - 981.0 979.6 983.1 2015 990.5 986.0 986.9 987.4 990.2 983.1 985.7 983.7 984.0 991.9 981.7 986.0 2016 988.7 986.0 983.6 987.1 1004.1 989.5 997.5 994.0 988.4 992.8 984.3 992.0 2017 987.6 993.8 1000.7 994.3 989.9 987.5 984.0 988.4 978.9 984.6 988.4 980.9 2018 987.3 985.3 980.7 989.2 990.2 996.0 994.2 988.7 991.2 996.5 - 981.6 2019 986.0 992.2 992.2 986.7 989.6 995.2 1003.0 997.7 992.2 989.6 988.8 995.3 2020 992.0 996.1 988.1 989.2 998.8 995.7 - 992.6 987.9 985.4 983.2 984.1 2021 987.8 987.5 985.2 988.3 995.8 996.8 992.8 987.0 982.1 978.7 985.9 982.1 2022 990.2 988.4 994.2 988.8 992.8 986.0 990.3 992.4 986.3 979.4 979.9 985.2 2023 984.4 988.6 981.1 986.9 983.3 995.3 995.3 987.5 997.5 - 984.2 987.2 2024 986.5 988.4 990.8 978.2 - - - - - - - -