Year,Value,Contiguous U.S. (Lower 48),Temp,Jul,(°F) 1940,42.804 1941,41.888 1942,47.455 1943,59.745 1944,35.936 1945,22.746 1946,45.955 1947,27.219 1948,57.109 1949,57.52 1950,9.189 1951,58.838 1952,61.451 1953,70.728 1954,81.392 1955,54.723 1956,40.223 1957,68.224 1958,36.88 1959,57.916 1960,56.436 1961,41.937 1962,19.734 1963,59.043 1964,69.687 1965,24.475 1966,80.53 1967,29.759 1968,29.522 1969,61.878 1970,66.853 1971,28.057 1972,25.01 1973,47.149 1974,52.057 1975,48.789 1976,40.857 1977,71.915 1978,62.418 1979,49.542 1980,88.419 1981,60.241 1982,43.534 1983,63.905 1984,32.349 1985,48.284 1986,50.399 1987,46.874 1988,71.199 1989,66.187 1990,40.135 1991,62.076 1992,21.221 1993,48.936 1994,53.316 1995,58.174 1996,49.453 1997,33.461 1998,74.125 1999,60.697 2000,54.746 2001,62.247 2002,80.855 2003,63.408 2004,37.289 2005,91.703 2006,96.92 2007,57.959 2008,69.92 2009,43.541 2010,82.218 2011,80.394 2012,86.248 2013,52.686 2014,41.791 2015,52.192 2016,87.107 2017,91.457 2018,85.908 2019,77.844 2020,91.37 2021,55.119 2022,96.685 2023,76.179 2024,65.7 2025,73.594