Year,Value,Global,DewPt,Mar,(°F) 1940,45.155 1941,45.1 1942,45.434 1943,45.584 1944,45.977 1945,45.22 1946,45.446 1947,45.861 1948,45.579 1949,46.254 1950,45.828 1951,45.667 1952,45.81 1953,46.187 1954,45.551 1955,45.16 1956,45.685 1957,45.596 1958,45.819 1959,46.287 1960,45.404 1961,45.967 1962,46.064 1963,45.427 1964,45.302 1965,45.452 1966,45.655 1967,46.069 1968,46.335 1969,46.081 1970,45.98 1971,45.594 1972,45.999 1973,46.348 1974,46.037 1975,46.106 1976,45.658 1977,46.038 1978,46.221 1979,46.467 1980,46.758 1981,47.014 1982,46.327 1983,46.852 1984,46.59 1985,46.319 1986,46.531 1987,46.334 1988,46.745 1989,46.655 1990,47.29 1991,46.875 1992,46.772 1993,46.395 1994,46.312 1995,46.725 1996,46.687 1997,46.81 1998,46.834 1999,46.364 2000,46.531 2001,46.749 2002,47.272 2003,46.681 2004,46.747 2005,47.024 2006,46.804 2007,46.897 2008,46.53 2009,46.53 2010,47.258 2011,46.835 2012,46.543 2013,46.758 2014,47.019 2015,47.157 2016,47.907 2017,47.821 2018,47.25 2019,47.644 2020,47.649 2021,46.978 2022,47.237 2023,47.566 2024,48.011 2025,47.768