Year,Depart From 1991-2020 Average,Contiguous U.S. (Lower 48),Temp,Mar,(°F)
1940,17.526
1941,45.522
1942,22.245
1943,37.864
1944,29.534
1945,4.793
1946,-11.442
1947,40.876
1948,27.641
1949,-20.825
1950,18.456
1951,5.28
1952,15.619
1953,-25.08
1954,-2.334
1955,-1.718
1956,-13.466
1957,-23.642
1958,31.634
1959,-17.288
1960,33.995
1961,-24.696
1962,30.515
1963,-23.632
1964,7.001
1965,49.972
1966,-20.055
1967,-18.802
1968,-16.251
1969,46.616
1970,12.557
1971,2.355
1972,-17.603
1973,-14.381
1974,-23.95
1975,3.272
1976,-17.285
1977,-14.354
1978,6.64
1979,-24.843
1980,-8.855
1981,-11.743
1982,-21.311
1983,-13.416
1984,12.251
1985,-15.294
1986,-24.87
1987,-7.405
1988,-22.575
1989,-13.645
1990,-25.093
1991,-8.054
1992,-19.77
1993,16.828
1994,-22.691
1995,-18.821
1996,44.184
1997,-17.681
1998,17.46
1999,5.817
2000,-24.578
2001,29.057
2002,36.567
2003,-10.508
2004,-25.296
2005,7.983
2006,-2.343
2007,-24.237
2008,5.442
2009,-5.474
2010,-1.006
2011,-0.46
2012,-19.383
2013,25.57
2014,35.357
2015,-6.0
2016,-25.216
2017,-20.434
2018,6.049
2019,36.398
2020,-14.759
2021,-5.959
2022,-17.241
2023,26.599
2024,-10.339
2025,-23.921