Year,Value,Contiguous U.S. (Lower 48),Temp,Dec-Feb,(°C)
1941,56.635
1942,83.419
1943,43.273
1944,38.429
1945,61.763
1946,75.638
1947,65.304
1948,92.968
1949,60.412
1950,36.193
1951,40.985
1952,38.26
1953,1.655
1954,0.008
1955,51.494
1956,48.602
1957,22.86
1958,31.572
1959,64.291
1960,55.486
1961,48.919
1962,68.596
1963,63.931
1964,69.311
1965,33.262
1966,68.634
1967,34.24
1968,62.542
1969,60.888
1970,52.232
1971,39.24
1972,32.563
1973,66.314
1974,23.052
1975,30.064
1976,7.062
1977,63.326
1978,66.967
1979,99.577
1980,28.496
1981,25.221
1982,67.798
1983,11.454
1984,69.041
1985,75.616
1986,38.063
1987,27.752
1988,55.115
1989,38.474
1990,18.852
1991,23.807
1992,7.76
1993,48.244
1994,38.626
1995,0.744
1996,39.714
1997,21.498
1998,13.431
1999,6.779
2000,0.1
2001,92.271
2002,21.167
2003,43.948
2004,47.887
2005,7.524
2006,7.355
2007,32.097
2008,45.098
2009,37.951
2010,78.532
2011,76.383
2012,11.914
2013,30.863
2014,74.621
2015,48.645
2016,5.606
2017,22.9
2018,33.345
2019,48.843
2020,4.183
2021,57.047
2022,24.135
2023,43.352
2024,0.966
2025,52.915