Year,Value,Europe,DewPt,Jan-Apr,(°F) 1940,16.893 1941,18.995 1942,16.251 1943,22.726 1944,24.37 1945,21.129 1946,22.504 1947,19.876 1948,23.272 1949,23.613 1950,22.547 1951,22.809 1952,23.349 1953,22.005 1954,18.84 1955,22.23 1956,18.594 1957,24.389 1958,22.084 1959,25.059 1960,22.005 1961,26.311 1962,24.175 1963,17.902 1964,21.327 1965,21.361 1966,22.135 1967,23.472 1968,22.062 1969,18.019 1970,22.459 1971,22.412 1972,22.204 1973,24.155 1974,24.979 1975,26.422 1976,21.053 1977,23.972 1978,23.14 1979,21.251 1980,21.515 1981,23.374 1982,22.608 1983,25.938 1984,23.559 1985,18.722 1986,22.28 1987,19.007 1988,24.332 1989,27.832 1990,27.927 1991,24.225 1992,25.303 1993,24.568 1994,24.202 1995,27.632 1996,21.526 1997,23.368 1998,23.442 1999,24.868 2000,26.985 2001,25.723 2002,26.862 2003,22.06 2004,24.818 2005,23.564 2006,21.69 2007,26.822 2008,27.089 2009,24.462 2010,21.94 2011,23.179 2012,23.367 2013,23.806 2014,26.585 2015,26.224 2016,27.582 2017,25.582 2018,24.024 2019,25.637 2020,28.124 2021,23.351 2022,25.801 2023,26.794 2024,27.31 2025,28.24