Year,Value,WFO Anchorage,SLP,May,(hPa) 1940,1011.865 1941,1010.916 1942,1015.166 1943,1016.434 1944,1010.696 1945,1017.611 1946,1014.152 1947,1008.865 1948,1011.91 1949,1014.395 1950,1007.735 1951,1011.845 1952,1013.417 1953,1009.331 1954,1011.26 1955,1005.043 1956,1005.875 1957,1012.011 1958,1008.904 1959,1011.879 1960,1008.791 1961,1010.581 1962,1013.134 1963,1011.982 1964,1016.434 1965,1011.323 1966,1008.955 1967,1017.449 1968,1014.766 1969,1010.507 1970,1011.152 1971,1006.598 1972,1012.552 1973,1005.832 1974,1009.515 1975,1009.13 1976,1006.369 1977,1008.396 1978,1009.789 1979,1008.845 1980,1007.973 1981,1011.262 1982,1012.738 1983,1009.793 1984,1011.64 1985,1009.55 1986,1009.738 1987,1007.714 1988,1007.402 1989,1013.627 1990,1010.839 1991,1008.021 1992,1016.258 1993,1009.766 1994,1005.415 1995,1009.815 1996,1017.359 1997,1015.672 1998,1006.936 1999,1011.13 2000,1014.236 2001,1010.303 2002,1014.746 2003,1011.691 2004,1014.124 2005,1009.58 2006,1012.455 2007,1011.843 2008,1011.663 2009,1015.405 2010,1013.113 2011,1011.294 2012,1008.355 2013,1014.636 2014,1017.777 2015,1015.13 2016,1014.195 2017,1009.791 2018,1008.312 2019,1010.552 2020,1011.439 2021,1011.869 2022,1012.904 2023,1010.301 2024,1008.733 2025,1005.14