Campbell 12Z msl_pressure 1961 - - - 1008.9 1005.9 997.0 1004.6 1013.1 1006.8 1004.1 1003.6 1008.8 1962 1007.3 1004.3 1006.8 1007.6 1007.2 1001.0 1007.6 1002.1 1003.3 1003.7 998.3 1010.3 1963 1006.1 1006.9 1004.1 1006.6 998.9 1007.9 1009.9 1007.5 1005.5 1003.5 998.4 999.2 1964 994.9 1013.7 1000.9 1004.0 1002.5 1004.8 998.1 990.8 999.1 999.6 997.3 1005.1 1965 1010.3 997.1 1005.0 1004.7 1004.5 1002.4 1004.0 1013.3 1002.9 997.0 998.9 998.9 1966 1001.6 1009.6 1008.2 999.7 1008.1 1000.5 1009.6 1013.4 1010.7 1004.1 1000.5 1004.5 1967 1001.6 1000.6 1008.9 999.6 1004.9 1009.3 1012.0 1006.8 1008.4 1002.8 994.6 1001.3 1968 998.8 1000.7 1010.1 1007.5 1002.7 1001.2 1007.3 1001.4 994.8 990.4 992.6 1010.6 1969 1002.2 1008.3 1000.7 999.5 1010.7 997.8 1007.2 1006.1 1000.8 1000.2 1011.9 1002.8 1970 1006.5 1006.9 1009.3 998.3 1007.2 1008.0 1003.2 1009.1 - - 1008.3 1003.9 1971 1014.9 1009.3 1006.3 1010.2 1008.5 1010.6 1015.5 1013.7 996.3 997.3 1001.8 1009.0 1972 1003.1 1009.8 1004.7 997.8 999.8 1005.7 1004.0 1007.0 994.8 997.5 1003.6 998.9 1973 1004.2 1007.4 1008.9 1001.3 997.8 1006.1 1021.8 1013.6 999.0 1002.7 999.0 1008.4 1974 1006.5 1010.6 1012.4 1015.6 1005.9 1008.8 1000.4 1003.9 1007.2 1006.9 1007.8 1005.6 1975 1008.8 1006.9 1008.4 1001.2 997.5 1003.0 1002.2 1004.4 1002.0 1002.9 1002.0 999.3 1976 1001.1 1009.3 1010.0 1007.5 1000.2 1004.1 998.2 1012.5 1011.2 1006.4 1008.4 1002.7 1977 997.8 1007.5 1005.7 1001.6 1009.0 1005.5 1014.1 1012.8 1005.2 995.9 1002.8 1002.6 1978 1008.2 1007.4 1004.9 1010.7 1010.6 1008.6 1008.2 1003.8 1011.4 1002.7 1000.5 1002.9 1979 997.0 999.5 1012.6 1005.5 1006.8 1010.0 1007.3 1006.3 999.5 1005.1 1005.4 999.5 1980 1004.6 1007.0 1005.2 1009.2 1008.5 1009.5 1003.6 999.7 990.0 1002.0 993.2 1009.0 1981 1002.0 - 1013.7 1001.6 1012.4 1008.6 1007.7 - - - - - 1982 - - - 1012.8 1001.6 1015.2 1004.9 1000.0 1003.9 997.3 - - 1983 - - - 1007.5 1001.6 1002.5 1010.6 1006.0 1000.4 1007.1 - - 1984 - - - 1000.2 1009.4 1002.5 1008.0 1006.6 1008.7 - - - 1985 - - 1009.6 1014.9 1014.9 1008.1 1004.9 1006.5 1005.5 - - - 1986 - - 1009.7 1000.8 1003.3 1002.7 1000.4 1014.1 1000.6 - - - 1987 - - 1008.6 1002.4 1006.8 1004.4 1009.1 1007.2 995.0 - - - 1988 - - - 1011.6 996.5 1004.6 1003.0 1002.6 1001.9 988.5 - - 1989 - - - 1008.1 1008.1 1005.0 1011.3 1014.4 1015.8 - 1001.4 1001.5 1990 - - - - - - - - - - - - 1991 - - - - - - - - - - - - 1992 - - - - 1005.3 - 1002.5 - 1003.2 - - - 1993 - - - 1011.0 1004.3 993.2 1012.6 1005.8 1007.7 - - - 1994 - - - 1000.4 999.9 1007.4 1005.7 996.3 996.3 - - - 1995 1008.2 1007.7 998.5 1011.6 1004.7 1003.4 993.0 1005.5 1005.3 1001.0 1002.0 1000.1 1996 1015.5 1006.8 - 1008.1 998.2 1005.1 1012.8 1000.3 1003.6 1001.4 996.4 1003.3 1997 1012.5 1003.3 1004.9 1000.8 1008.1 1009.8 1004.3 1004.0 1009.5 997.2 990.2 1000.6 1998 1002.0 - 999.2 1004.3 1007.5 1004.8 1003.8 1005.4 1000.6 996.9 1007.2 1006.4 1999 1007.4 1011.1 1010.1 1006.4 1005.9 - 1006.9 1009.0 1010.9 - - - 2000 - - - 1004.0 - 1006.0 1011.7 1008.0 1002.8 - - - 2001 - - - - - - - - - - - - 2002 - - - - - - - - - - - - 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - 1010.5 1002.8 1004.6 996.2 1002.2 1010.5 2008 1004.6 1006.5 1007.1 1007.1 1010.3 1001.9 1011.0 1003.4 - 996.9 1000.3 1001.6 2009 1002.5 1008.3 1006.8 1009.1 1006.8 1011.4 999.9 1003.6 1007.3 1003.1 992.1 1002.1 2010 1007.7 1009.9 1001.4 1001.7 1012.8 1006.6 1009.8 1008.4 991.9 1009.1 1010.1 1002.1 2011 1007.0 1004.1 1007.0 1008.6 1000.8 1006.0 992.5 1006.9 1000.2 1009.8 998.0 1010.9 2012 998.6 1011.9 1009.8 1009.9 1006.6 1002.1 1010.9 1013.4 1000.6 992.9 1004.9 1000.4 2013 1000.3 1009.4 1006.1 1006.3 1003.2 1007.4 1003.5 1005.6 1000.1 990.8 1007.2 1005.6 2014 997.9 1006.3 1012.2 1014.4 999.8 1008.0 1004.3 1006.3 1001.1 995.9 993.2 1009.7 2015 1008.0 1010.7 1006.6 1005.9 997.7 998.9 1004.0 1008.2 1007.4 994.6 998.5 1002.5 2016 1006.0 1001.6 1011.2 1004.5 997.7 1003.2 994.4 1008.4 1009.7 1000.9 995.0 998.1 2017 992.5 1004.4 1007.9 1010.1 1008.0 1006.9 1006.6 1007.6 998.4 1001.8 1009.9 1005.3 2018 1007.7 1002.1 1008.0 998.8 1000.0 1009.9 1001.5 1004.9 1003.7 1005.1 1008.0 1005.6 2019 997.0 1004.6 1014.1 1011.2 1000.8 1004.0 1002.6 992.6 997.4 1001.5 997.3 999.3 2020 1004.5 1004.7 1009.8 1003.2 1007.6 1008.8 1008.1 1001.1 999.2 1007.3 1003.0 1003.9 2021 1001.2 1012.7 1007.1 997.5 1005.9 1010.3 1002.4 1003.1 998.0 1008.4 1008.4 - 2022 1009.7 1010.5 1014.9 1004.6 1003.6 997.1 1009.7 1008.4 1008.1 1007.1 1000.8 1010.3 2023 1012.3 1007.9 1005.2 1009.4 1003.2 1008.9 999.0 1008.2 1002.9 999.2 1007.4 1002.8 2024 1003.5 1001.9 1001.4 1001.3 1003.9 1013.5 1015.2 1001.6 993.6 1006.2 1005.5 -