Year,Depart From 1991-2020 Average,Contiguous U.S. (Lower 48),Temp,Jun-Aug,(°F)
1940,25.907
1941,32.231
1942,26.768
1943,-0.371
1944,13.961
1945,50.515
1946,25.487
1947,34.548
1948,-6.438
1949,4.647
1950,54.606
1951,22.657
1952,-12.245
1953,-8.29
1954,4.637
1955,12.719
1956,-6.475
1957,-7.978
1958,17.062
1959,-3.81
1960,-3.023
1961,19.589
1962,23.229
1963,12.481
1964,8.534
1965,48.975
1966,2.391
1967,45.988
1968,27.983
1969,-1.095
1970,-7.702
1971,7.48
1972,36.207
1973,3.51
1974,20.212
1975,23.804
1976,39.433
1977,-9.735
1978,-4.737
1979,24.738
1980,-5.928
1981,-10.512
1982,38.149
1983,8.974
1984,5.029
1985,19.647
1986,-1.775
1987,1.702
1988,-10.7
1989,8.326
1990,-14.749
1991,-4.821
1992,50.702
1993,25.602
1994,0.284
1995,6.368
1996,10.313
1997,32.901
1998,-5.012
1999,6.085
2000,2.958
2001,-9.751
2002,-12.171
2003,-1.765
2004,40.854
2005,-17.6
2006,-18.864
2007,-12.824
2008,-11.538
2009,25.071
2010,-10.226
2011,-8.235
2012,-15.222
2013,-4.115
2014,20.734
2015,-13.867
2016,-18.546
2017,-8.288
2018,-17.642
2019,-12.701
2020,-18.684
2021,-10.017
2022,-18.26
2023,-7.389
2024,-16.163
2025,-14.47