Campbell 18Z msl_pressure 1961 - - - 1008.6 1005.0 996.9 1003.9 1013.5 1005.1 1004.8 1003.6 1008.7 1962 1006.9 1004.2 1007.0 1006.3 1006.3 1000.7 1006.6 1001.7 1003.3 1002.8 997.5 1009.9 1963 1006.1 1005.9 1003.4 1005.7 998.5 1007.6 1009.5 1007.1 1006.0 1002.6 997.1 998.2 1964 994.4 1013.3 1000.2 1003.6 1002.9 1004.5 998.1 990.9 998.5 998.9 996.9 1005.1 1965 1009.8 996.4 1004.4 1004.8 1003.7 1001.8 1003.7 1013.0 1002.3 997.1 999.0 998.3 1966 1001.4 1009.2 1007.2 999.2 1007.9 1000.5 1009.3 1013.2 1010.8 1003.8 999.3 1004.2 1967 1001.3 998.8 1008.4 998.9 1004.4 1009.2 1011.4 1005.9 1008.1 1003.1 994.7 1000.9 1968 998.9 1000.1 1009.9 1007.3 1002.0 1000.9 1007.2 1001.3 995.5 989.6 992.2 1010.1 1969 1001.6 1007.4 1001.3 999.2 1010.4 997.0 1007.2 1005.9 1000.8 1000.0 1011.0 1002.5 1970 1006.0 1007.3 1009.1 998.7 1006.7 1008.0 1002.9 1009.1 - - 1007.9 1003.9 1971 1014.2 1008.8 1005.4 1009.9 1007.9 1010.2 1014.9 1013.0 996.5 996.7 1001.0 1008.9 1972 1002.6 1009.1 1004.4 997.4 1000.2 1005.1 1004.2 1006.5 994.9 997.4 1002.7 998.4 1973 1003.4 1007.7 1008.3 1000.6 997.2 1005.8 1020.9 1013.0 999.2 1002.1 998.7 1007.9 1974 1006.3 1010.2 1012.1 1015.0 1005.4 1009.1 1000.3 1003.8 1007.0 1005.8 1007.1 1004.9 1975 1008.5 1006.4 1007.6 1000.1 996.8 1003.0 1001.7 1004.1 1001.0 1001.9 1001.8 999.5 1976 1000.7 1008.8 1009.6 1007.5 1000.1 1003.6 997.7 1012.2 1010.5 1006.1 1007.8 1002.3 1977 997.5 1007.4 1004.9 1001.1 1008.5 1004.7 1013.4 1012.5 1005.0 995.0 1002.5 1002.0 1978 1007.1 1006.8 1004.6 1010.7 1010.6 1008.0 1007.7 1003.2 1010.8 1002.6 999.6 1002.5 1979 996.2 998.5 1012.2 1005.4 1006.2 1009.7 1007.2 1006.1 998.3 1005.2 1004.6 999.1 1980 1004.0 1006.6 1004.2 1009.1 1008.6 1008.8 1003.4 998.9 989.7 1001.5 992.6 1008.5 1981 1001.6 - 1013.7 1001.6 1012.4 1007.7 1007.7 - - - - - 1982 - - - 1012.7 1002.0 1014.9 1003.4 1000.0 1002.9 997.6 - - 1983 - - - 1007.1 1001.4 1002.6 1010.5 1005.2 1000.5 1006.9 - - 1984 - - 1014.0 999.6 1009.0 1003.3 1007.4 1006.3 1008.0 - - - 1985 - - 1008.4 1014.5 1014.5 1007.4 1004.7 1006.7 1004.2 - - - 1986 - - 1009.7 1000.0 1003.8 1000.9 999.5 1014.4 1000.7 - - - 1987 - - 1007.9 1001.9 1005.7 1003.5 1008.7 1006.9 994.5 - - - 1988 - - - 1011.7 996.4 1004.1 1001.6 1002.9 1001.5 987.5 - - 1989 - - - 1007.5 1007.5 1004.5 1010.9 1013.3 1015.4 - 1001.1 1000.6 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - 1010.7 - 1003.9 1001.6 - 1003.2 - - - 1993 - - - 1010.8 1003.4 993.8 1011.9 1004.2 1007.3 - - - 1994 - - - 1000.5 999.9 1006.8 1005.1 995.8 996.8 - - - 1995 1007.9 1006.7 997.9 1011.3 1004.6 1003.6 992.9 1004.5 1004.9 1001.1 1001.9 999.2 1996 1014.8 1006.2 - 1007.3 998.1 1004.1 1012.5 1000.3 1003.1 1001.0 996.4 1002.5 1997 1011.8 1002.5 1004.6 1000.1 1007.8 1009.3 1003.1 1004.2 1008.7 995.6 989.3 1001.1 1998 1002.3 - 998.8 1004.0 1005.8 1005.2 1003.4 1005.9 1001.2 996.9 1006.4 1006.1 1999 1007.3 1010.2 1009.0 1005.9 1005.6 - 1007.2 1008.4 1010.9 - - - 2000 - - - - - 1005.3 1011.6 1006.0 1002.8 - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - 1010.5 1002.4 1003.4 996.6 1000.1 1009.5 2008 1004.2 1006.1 1006.8 1006.6 1010.0 1001.4 1010.4 1005.1 1003.0 995.7 999.6 1001.2 2009 1001.7 1007.8 1006.9 1008.8 1006.4 1011.7 998.7 1002.7 1006.7 1002.3 991.3 1000.8 2010 1007.5 1009.2 1000.5 1001.2 1012.5 1005.6 1009.5 1008.0 990.6 1008.3 1009.0 1001.6 2011 1006.7 1003.4 1004.9 1008.3 999.9 1005.4 992.5 1006.8 999.7 1008.6 997.6 1010.6 2012 998.1 1011.3 1008.9 1009.1 1006.3 1002.0 1011.0 1012.8 1001.0 992.2 1003.5 999.9 2013 1000.4 1009.2 1006.1 1006.4 1002.3 1007.6 1004.0 1004.8 1000.3 990.0 1006.2 1005.0 2014 997.3 1005.8 1011.7 1013.8 998.8 1007.3 1004.2 1006.5 1001.1 995.7 993.2 1009.1 2015 1007.7 1009.4 1005.8 1004.6 997.3 998.2 1004.0 1007.7 1006.9 994.1 997.9 1001.4 2016 1005.8 1000.9 1010.4 1005.0 998.0 1003.7 993.6 1007.7 1009.4 1000.0 994.8 997.1 2017 992.6 1004.1 1007.3 1009.9 1007.0 1007.1 1006.2 1008.3 997.3 1001.7 1009.0 1004.1 2018 1006.8 1001.3 1007.5 998.6 1000.2 1009.5 1000.7 1005.0 1003.1 1005.3 1007.7 1005.0 2019 996.9 - 1012.7 1011.1 1000.3 1003.3 1002.5 992.5 998.2 1001.9 996.5 999.0 2020 1004.1 1004.4 1008.5 1001.7 1007.7 1008.9 1007.9 1000.4 997.8 1007.2 1002.8 1003.5 2021 1001.0 1011.9 1006.2 996.2 1005.3 1010.8 1001.5 1002.6 997.6 1007.8 1008.4 - 2022 1009.4 1010.2 1013.9 1003.4 1003.6 996.3 1009.0 1007.8 1007.2 1006.1 1000.2 1010.4 2023 1011.9 1007.1 1004.6 1009.3 1002.5 1008.7 998.6 1007.9 1002.6 998.6 1006.6 1002.5 2024 1003.5 1001.0 1001.3 1001.6 - - - - - - - -