Marsh 06Z msl_pressure 1970 993.4 986.9 993.9 982.7 989.1 996.1 993.7 994.2 990.1 992.4 990.3 990.9 1971 988.9 990.9 987.7 989.9 1002.2 993.6 1000.3 983.8 990.8 992.1 984.4 993.7 1972 994.7 991.0 991.3 988.8 994.3 993.6 990.8 1001.7 988.9 994.7 986.3 992.7 1973 993.0 986.8 984.2 980.6 988.6 997.2 1002.7 - 989.0 992.3 989.3 985.5 1974 - - - - - - - - - - - - 1975 993.4 987.3 986.1 990.6 991.6 998.0 997.2 990.3 993.0 984.6 986.2 985.4 1976 994.8 990.6 994.0 988.0 984.9 995.2 983.0 983.1 988.3 993.2 996.8 1001.5 1977 995.5 990.3 990.9 991.1 984.3 993.8 1002.3 993.9 984.3 989.1 989.1 996.3 1978 990.3 991.8 994.8 994.2 1003.3 985.7 1003.2 986.0 995.4 985.9 995.0 989.1 1979 996.9 989.9 996.5 986.3 998.8 991.1 990.4 989.9 994.2 987.0 994.6 997.5 1980 - 995.3 993.2 996.2 998.1 986.9 1000.8 997.4 995.2 991.6 987.2 994.8 1981 993.0 984.8 1000.8 999.4 994.9 997.0 997.2 991.8 992.5 - 983.5 988.9 1982 - - - - - - - - - - - - 1983 996.2 989.6 991.1 1000.1 1001.3 995.7 990.7 992.9 994.7 987.7 983.5 988.0 1984 989.9 990.0 997.6 987.4 994.7 1000.1 1002.0 992.8 999.9 991.6 985.3 1001.8 1985 996.5 985.8 990.3 989.5 996.0 1007.4 988.6 985.6 985.8 994.9 990.5 983.1 1986 986.0 990.1 991.2 990.1 999.4 984.0 986.1 985.4 988.4 993.2 983.9 984.8 1987 988.7 992.8 984.8 988.6 997.5 992.7 994.2 1001.2 988.2 990.4 983.0 987.7 1988 993.7 991.4 988.0 993.2 998.4 995.5 991.9 1000.2 992.9 1000.9 983.6 983.7 1989 992.1 987.6 988.5 992.6 987.0 983.4 995.8 999.5 991.4 984.1 984.5 991.7 1990 991.1 992.2 985.5 991.1 1003.3 985.0 993.5 980.7 994.8 977.4 973.8 988.1 1991 988.4 991.5 989.7 993.0 988.2 992.1 993.3 988.6 997.2 985.7 989.0 998.3 1992 991.4 987.4 991.0 994.5 999.2 1001.6 997.6 990.8 988.4 985.7 993.8 995.8 1993 995.6 994.1 990.0 989.0 989.6 992.2 994.7 989.3 984.8 986.0 986.0 984.8 1994 984.8 986.0 994.4 995.7 996.6 998.8 996.4 989.2 982.1 989.4 994.8 989.6 1995 993.5 992.9 983.9 992.8 992.6 989.8 990.3 994.5 987.7 994.2 982.9 986.8 1996 991.2 991.4 986.2 996.4 986.7 993.4 991.6 989.9 996.0 986.3 978.1 989.1 1997 988.3 994.0 991.6 986.6 - 1003.2 992.0 - 994.9 991.9 996.8 999.5 1998 986.4 996.3 990.5 996.9 1000.7 997.0 979.1 986.5 989.7 982.2 985.5 982.8 1999 990.8 985.0 996.0 989.2 993.7 996.8 990.6 990.5 992.1 986.7 989.6 983.6 2000 981.7 996.0 1002.0 989.5 998.6 998.8 1005.5 992.9 1002.5 989.2 994.7 988.9 2001 989.3 988.6 987.8 987.6 999.4 992.4 996.0 983.7 991.6 985.2 981.3 983.4 2002 988.7 987.3 991.7 987.9 993.5 990.8 994.8 999.3 1002.8 989.6 989.7 990.5 2003 992.6 986.9 996.7 995.2 991.4 997.0 984.7 988.6 991.6 984.6 984.9 995.0 2004 986.8 998.3 989.2 991.8 993.9 988.7 991.6 991.2 980.1 989.6 996.1 991.6 2005 986.9 987.1 990.5 984.3 994.7 997.0 998.1 992.8 1000.1 994.8 991.1 995.1 2006 992.5 995.8 981.0 991.9 989.9 998.3 993.7 1000.5 991.3 991.2 982.6 984.9 2007 990.4 987.8 989.6 990.5 999.9 991.4 994.8 988.2 998.1 984.1 990.2 984.9 2008 987.6 989.5 991.8 987.8 993.4 993.3 995.9 990.2 1001.2 985.5 983.8 981.5 2009 985.5 986.6 988.0 990.9 986.2 989.0 992.4 1002.5 989.8 977.1 985.1 988.6 2010 - - - - 986.2 987.5 - 992.6 - - 988.3 980.7 2011 992.6 989.3 - 986.4 989.6 992.3 - - 993.6 987.7 989.5 - 2012 - - - 996.2 993.3 978.1 989.5 990.1 993.9 981.9 985.8 993.5 2013 988.5 988.3 996.8 987.4 987.6 980.7 984.7 990.1 996.4 984.5 980.1 986.5 2014 990.3 990.2 984.7 997.6 993.3 994.2 993.8 996.9 997.9 982.6 - 982.9 2015 991.7 986.7 986.9 989.0 990.4 - 985.5 985.2 - 992.9 982.2 - 2016 - 986.3 988.2 - 1002.9 991.8 - 995.0 - - - - 2017 - 995.2 1002.9 994.7 991.7 987.6 984.4 - - 984.5 987.6 - 2018 - 985.1 983.2 989.8 988.8 993.7 - 988.8 992.4 994.4 981.2 981.5 2019 984.6 990.4 992.6 988.2 989.0 993.8 1001.7 995.9 990.6 990.4 987.4 993.4 2020 990.8 994.4 988.5 990.3 998.0 993.7 1002.1 993.9 987.0 985.5 985.5 984.0 2021 987.8 988.5 986.3 988.5 996.5 997.1 994.1 985.5 986.0 981.0 987.4 983.0 2022 988.7 987.5 995.0 988.1 994.4 988.2 989.6 995.5 991.0 - 984.0 985.4 2023 985.1 989.4 982.7 988.6 985.3 995.3 995.8 987.7 996.4 982.0 985.5 986.2 2024 986.9 989.4 990.3 983.2 - - - - - - - -