Lettau 18Z pressure 1986 - 991.9 989.7 979.4 992.4 990.6 978.7 979.9 976.4 971.5 974.5 981.8 1987 992.7 988.9 985.4 987.4 983.0 985.8 991.2 975.4 989.2 977.4 978.2 985.6 1988 988.4 984.3 984.9 981.4 989.0 995.0 975.2 974.8 983.2 989.0 981.4 983.6 1989 984.7 985.2 982.9 987.7 969.1 979.7 977.3 982.7 980.4 973.5 976.5 989.3 1990 988.5 983.1 985.6 991.5 997.1 985.2 995.4 979.3 970.0 980.7 982.8 983.2 1991 982.4 989.2 980.3 983.9 987.3 988.9 990.8 - - - 983.1 995.0 1992 988.6 994.7 987.9 984.4 989.6 993.0 - - - - 977.4 983.1 1993 996.3 978.1 985.6 980.7 982.5 - - - - - 979.7 983.9 1994 985.1 982.3 978.3 984.2 985.6 997.5 986.8 972.9 987.8 976.8 985.1 981.6 1995 981.2 981.1 991.0 982.1 980.3 986.1 - - - - 977.5 977.6 1996 986.2 - - - - - - - - - - 985.2 1997 989.0 - - - - - - - - - - - 1998 - - 981.6 974.0 982.1 - - - - - - - 1999 - 987.0 983.5 980.1 976.6 999.4 979.5 981.7 981.1 964.1 - - 2000 - - 982.7 982.4 982.4 984.0 979.5 982.6 986.5 975.1 - - 2001 - - 983.1 978.1 983.4 981.3 985.5 981.5 976.2 971.3 - - 2002 - - 989.8 979.7 992.2 993.3 986.6 977.2 985.5 990.3 - - 2003 - - 984.3 977.5 977.9 992.0 978.3 976.7 980.0 972.2 - - 2004 - - 983.6 978.3 981.4 976.4 977.1 980.3 981.9 979.0 - - 2005 - 979.6 981.9 979.1 980.1 989.3 980.2 975.9 975.4 970.5 - - 2006 - - 984.5 986.7 977.0 980.4 976.0 990.7 983.9 976.4 - - 2007 - - - - 988.6 989.3 1000.6 983.2 981.9 986.4 985.4 978.3 2008 982.7 984.9 988.6 988.9 986.2 982.0 984.2 987.9 - - - - 2009 - 990.5 985.5 990.0 993.6 996.8 992.9 993.0 986.8 979.2 986.1 984.8 2010 999.5 994.1 989.5 984.7 987.5 980.7 974.1 977.5 - - 976.0 991.2 2011 992.5 983.5 987.9 985.7 974.7 984.6 - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - 981.2 979.3 977.1 981.0 979.2 980.3 971.9 980.2 970.4 983.7 981.5 2015 983.0 975.8 978.9 977.2 981.7 980.9 972.5 974.6 971.1 975.9 973.7 984.1 2016 977.6 979.3 976.5 982.3 978.5 975.1 984.3 985.7 967.8 976.2 988.7 987.1 2017 992.2 986.5 986.3 979.2 972.6 978.6 976.4 971.9 973.1 980.6 973.4 982.8 2018 982.3 980.8 981.0 982.5 980.9 984.3 979.0 987.3 971.9 971.1 973.2 980.2 2019 984.5 985.1 982.3 977.6 983.7 969.2 984.8 980.1 967.9 978.5 989.2 992.8 2020 989.8 980.8 976.9 977.2 974.5 976.4 981.0 983.5 981.0 968.3 975.0 974.2 2021 978.3 974.7 984.5 977.8 982.3 978.0 984.6 984.9 970.8 974.8 971.7 971.4 2022 980.5 977.8 978.1 979.4 976.5 989.4 972.1 974.7 970.1 976.6 974.0 974.3 2023 977.2 981.5 982.0 988.3 978.2 985.7 982.4 983.6 976.5 972.7 980.1 976.0 2024 979.9 982.1 977.5 973.0 973.1 974.4 983.8 988.4 981.9 - - -