Year,Value,Contiguous U.S. (Lower 48),Snow,Oct-Mar,(in.)
1941,58.199
1942,62.629
1943,53.76
1944,59.677
1945,60.939
1946,58.538
1947,65.102
1948,72.135
1949,62.625
1950,54.352
1951,56.517
1952,63.365
1953,60.01
1954,56.116
1955,60.565
1956,60.693
1957,57.001
1958,63.377
1959,58.963
1960,72.214
1961,64.497
1962,64.143
1963,55.767
1964,64.166
1965,64.977
1966,58.263
1967,56.163
1968,63.331
1969,67.317
1970,63.409
1971,63.12
1972,56.118
1973,64.094
1974,62.241
1975,65.129
1976,58.162
1977,57.817
1978,69.125
1979,70.97
1980,64.674
1981,52.711
1982,65.034
1983,63.166
1984,62.512
1985,67.314
1986,59.756
1987,63.256
1988,62.98
1989,59.26
1990,59.253
1991,56.36
1992,51.834
1993,68.097
1994,58.207
1995,54.237
1996,58.475
1997,59.682
1998,64.749
1999,57.047
2000,48.97
2001,65.039
2002,50.346
2003,61.62
2004,58.603
2005,55.053
2006,53.673
2007,56.07
2008,58.298
2009,56.896
2010,70.547
2011,60.872
2012,51.224
2013,60.912
2014,58.881
2015,57.261
2016,55.355
2017,51.504
2018,51.394
2019,62.923
2020,56.686
2021,59.88
2022,51.585
2023,54.558
2024,54.249
2025,49.982