Year,Value,ValueRank 1940,65.437,50 1941,64.61,67 1942,64.208,74 1943,65.376,52 1944,66.09,38 1945,65.794,46 1946,64.662,62 1947,66.866,26 1948,66.824,27 1949,64.297,73 1950,63.835,80 1951,64.65,64 1952,66.687,29 1953,67.091,21 1954,67.01,23 1955,66.617,30 1956,65.861,44 1957,64.739,60 1958,65.836,45 1959,65.106,56 1960,67.009,24 1961,63.509,82 1962,64.635,65 1963,66.605,31 1964,64.059,75 1965,61.99,86 1966,64.988,57 1967,64.5,69 1968,64.371,72 1969,65.879,43 1970,64.784,59 1971,64.625,66 1972,64.434,71 1973,64.663,61 1974,62.914,84 1975,63.618,81 1976,64.51,68 1977,66.116,37 1978,66.018,40 1979,67.284,17 1980,66.587,32 1981,65.485,49 1982,64.494,70 1983,66.03,39 1984,63.499,83 1985,62.864,85 1986,63.914,78 1987,65.787,47 1988,65.282,53 1989,64.659,63 1990,67.71,12 1991,65.224,54 1992,65.201,55 1993,63.92,77 1994,66.462,33 1995,65.43,51 1996,63.904,79 1997,66.699,28 1998,69.301,2 1999,64.816,58 2000,65.965,42 2001,66.117,36 2002,67.381,14 2003,65.505,48 2004,66.346,35 2005,68.205,9 2006,64.005,76 2007,67.344,15 2008,66.016,41 2009,67.114,19 2010,67.396,13 2011,67.055,22 2012,67.306,16 2013,67.245,18 2014,66.347,34 2015,69.15,3 2016,67.758,11 2017,67.107,20 2018,68.093,10 2019,69.493,1 2020,66.871,25 2021,68.8,7 2022,68.909,5 2023,68.824,6 2024,69.07,4 2025,68.408,8 Variable: Temperature Domain: Contiguous U.S. (Lower 48) Month(s): Sep Average of all values: 65.898 Normal Period: 1991 to 2020 Normal Value = 66.626 Degrees F Trend Begin Value = 64.426 Degrees F Trend End Value = 67.37 Degrees F Total Trend (Change) = 2.944 Degrees F Total Trend (Change) per Decade = 0.342 Degrees F Trend Statistical Sig. (M-K Test): Increasing Trend P-value (M-K Test): 0.0