Whitlock 06Z pressure 1982 - 956.9 946.3 948.6 954.5 948.1 957.1 - 944.2 948.1 952.3 963.8 1983 963.2 963.6 953.2 948.8 953.2 955.3 948.4 945.0 950.4 936.8 942.3 955.6 1984 965.1 958.0 948.4 948.8 955.3 947.5 943.2 952.3 948.8 940.8 947.8 963.3 1985 961.9 955.0 953.7 953.3 954.3 950.6 939.4 951.0 941.6 942.9 940.3 949.9 1986 958.3 963.3 960.1 949.5 957.9 958.6 948.8 951.2 945.9 941.6 944.1 951.9 1987 964.2 957.9 955.1 957.3 951.9 954.5 960.0 942.0 955.7 947.2 947.5 956.5 1988 959.9 954.3 953.7 952.7 958.7 962.6 945.1 943.8 952.4 957.9 950.3 952.8 1989 955.4 953.8 952.8 955.7 940.4 949.0 947.6 951.5 951.6 943.7 943.8 959.3 1990 959.4 950.6 954.2 960.4 965.5 956.6 964.9 948.9 940.9 949.5 952.7 954.2 1991 952.9 958.3 949.7 955.8 955.2 958.2 959.6 951.1 948.0 946.0 952.1 963.7 1992 - - - - - - - - - - - - 1993 - - - - - - - - - - - - 1994 - - - - - - - - - - - - 1995 953.6 955.0 963.7 956.5 954.2 962.0 973.3 959.4 951.1 952.8 951.9 952.2 1996 959.9 963.6 957.3 952.3 958.9 955.3 955.7 - - 946.1 961.1 959.5 1997 962.2 962.0 953.2 958.9 947.3 959.9 - - - - 960.1 964.4 1998 959.3 954.2 955.5 - - - - - - - - - 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - 956.5 950.9 956.6 953.5 958.4 953.9 950.9 944.5 948.7 949.6 2002 956.0 950.6 961.6 952.9 963.0 964.9 960.0 949.7 957.7 961.2 955.4 951.4 2003 963.1 962.1 - - - - - - - - - 965.5 2004 957.4 966.4 956.1 951.6 953.5 951.0 949.0 953.0 953.9 951.5 949.7 963.4 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - 956.1 960.3 959.7 950.0 957.6 955.1 958.6 959.6 950.1 958.1 949.4 2012 950.3 956.5 954.5 953.2 950.1 962.2 950.9 952.8 950.6 949.6 960.0 961.1 2013 958.9 950.2 948.1 953.6 954.5 964.3 950.8 961.3 961.1 953.9 951.7 957.1 2014 960.7 955.0 953.4 952.0 954.5 952.9 954.4 944.1 955.1 943.0 956.6 954.6 2015 956.8 949.0 954.1 951.9 955.8 955.3 946.8 947.2 946.4 949.5 947.7 957.9 2016 951.1 953.0 949.9 955.6 954.9 948.6 958.3 959.5 943.3 950.3 963.4 960.0 2017 963.9 959.8 958.6 953.7 948.8 952.8 949.6 946.0 948.7 951.4 947.7 955.8 2018 955.4 953.4 954.6 959.0 955.6 957.5 954.6 960.6 944.8 943.8 948.5 953.1 2019 957.1 958.8 955.6 953.5 956.9 943.4 958.9 952.7 943.9 953.1 963.3 965.7 2020 962.3 954.2 949.0 954.3 951.0 949.1 953.4 955.3 954.4 944.4 948.8 948.8 2021 952.9 949.8 956.1 951.6 954.0 953.3 958.7 959.1 945.7 951.5 947.4 946.6 2022 954.3 951.6 952.8 953.3 949.7 961.4 947.4 949.3 945.9 951.1 947.3 949.6 2023 950.6 955.8 956.7 963.1 952.8 959.8 955.4 957.4 950.6 947.2 953.8 950.3 2024 953.4 955.1 953.0 946.6 948.0 947.6 960.7 963.0 955.9 - - -