Length of Snowfall Snow free Season, Each Year 1948 to 2021

GRAPH: Length of the Snowfree season (1948-2021, 74 years)

FIRST Table: Listed chronologically

SECOND Table: Ranked from longest snow free period to shortest

Column 1: Year
Columns 2, 3 & 4: last snowfall in the spring, month, day, and Calendar Day (CD) # of the year
Column 5: LY = Leap Year
Column 6: no = Leap Year no ajustment; +1 = Leap Year adjustment, added one day
Columns 7, 8, 9 & 10: first snowfall after Summer, year, month, day, and Calendar Day (CD) # of the year
Column 11: LY = Leap Year
Column 12: +1 = Leap Year adjustment, added one day
Column 13: length of the snow free season (number of days)
"no-snow" = number of days between the last and the first snowfalls

Year Year no-snow
2021 Feb 21 52 2021 Dec 10 344 290
2020 Apr 16 107 LY +1 2020 Oct 25 299 LY +1 190
2019 Mar 7 66 2019 Oct 28 301 233
2018 April 15 105 2018 Oct 14 287 180
2017 Mar 14 73 2017  Dec   17 351 276
2016 Feb 5 36 LY no 2016 Dec 3 338 LY +1 300
2015 Mar 4 63 2015 Nov 30 334 269
2014 Apr 13 103 2014 Nov 10 314 209
2013 May 2 122 2013 Nov 21 325 201
2012 Feb 13 44 LY no 2012 Dec 19 354 LY +1 308
2011 Mar 26 85 2011 Dec 3 337 250
2010 Mar 19 78 2010 Dec 11 345 265
2009 Feb 28 59 2009 Oct  10 283 222
2008 Mar 6 66 LY +1 2008 Dec 3 338 LY +1 270
2007 Mar 3 62 2007 Nov 21 325 261
2006 Mar 21 80 2006 Dec 31 365 283
2005 Feb 8 39 2005 Nov 15 319 278
2004 Feb 6 37 LY no 2004 Nov 28 333 LY +1 294
2003 Apr 7 97 2003 Nov 23 327 228
2002 Mar 25 84 2002 Oct 23 296 210
2001 Mar 11 70 2001 Dec 18 352 280
2000 Feb 18 49 LY no 2000 Nov 6 311 LY +1 260
1999 Mar 23 82 1999 Dec 14 348 264
1998 Mar 23 82 1998 Dec 20 354 270
1997 Apr 12 102 1997 Oct 26 299 195
1996 Apr 14 105 LY +1 1996 Oct 22 296 LY +1 189
1995 Apr 12 102 1995 Nov 10 314 210
1994 Apr 30 120 1994 Nov 28 332 210
1993 Mar 19 78 1993 Nov 15 319 239
1992 Apr 21 112 LY +1 1992 Nov 6 311 LY +1 197
1991 Mar 27 86 1991 Oct 31 304 216
1990 Apr 12 102 1990 Dec 2 336 232
1989 Mar 1 60 1989 Nov 27 331 269
1988 Mar 17 77 LY +1 1988 Nov 15 320 LY +1 241
1987 Mar 29 88 1987 Oct 10 283 193
1986 Apr 14 104 1986 Nov 1 305 199
1985 Mar 31 90 1985 Sep 29 272 180
1984 Apr 29 120 LY +1 1984 Nov 9 314 LY +1 192
1983 Apr 13 103 1983 Nov 9 313 208
1982 Apr 28 118 1982 Dec 27 361 241
1981 Mar 4 63 1981 Nov 19 323 258
1980 Apr 11 102 LY +1 1980 Oct 27 301 LY +1 197
1979 Apr 2 92 1979 Oct 22 295 201
1978 Mar 16 75 1978 Nov 16 320 243
1977 Apr 3 93 1977 Nov 9 313 218
1976 Mar 30 90 LY +1 1976 Oct 18 292 LY +1 200
1975 Apr 2 92 1975 Nov 20 324 230
1974 Apr 3 93 1974 Nov 13 317 222
1973 Apr 16 106 1973 Dec 4 338 230
1972 Apr 3 94 LY +1 1972 Nov 13 318 LY +1 222
1971 Apr 1 91 1971 Nov 22 326 233
1970 Apr 1 91 1970 Oct 9 282 189
1969 Mar 24 83 1969 Nov 14 318 233
1968 Feb 25 56 LY no 1968 Nov 9 314 LY +1 256
1967 May 3 123 1967 Dec 8 342 217
1966 Mar 27 86 1966 Nov 18 322 234
1965 Mar 25 84 1965 Dec 14 348 262
1964 Mar 25 85 LY +1 1964 Nov 29 334 LY +1 247
1963 Mar 12 71 1963 Dec 10 344 271
1962 Apr 1 91 1962 Nov 19 323 230
1961 Apr 9 99 1961 Nov 15 319 218
1960 Apr 2 93 LY +1 1960 Dec 20 354 LY +1 259
1959 Mar 26 85 1959 Nov 5 309 222
1958 Mar 16 75 1958 Nov 17 321 244
1957 Apr 11 101 1957 Nov 16 320 217
1956 Apr 6 97 LY +1 1956 Nov 15 320 LY +1 221
1955 Mar 25 84 1955 Nov 2 306 220
1954 Mar 29 88 1954 Dec 8 342 252
1953 Mar 8 67 1953 Nov 7 311 242
1952 Apr 9 100 LY +1 1952 Nov 25 330 LY +1 228
1951 Apr 12 102 1951 Nov 4 308 204
1950 Apr 12 102 1950 Nov 8 312 208
1949 Apr 14 104 1949 Dec 21 355 249
1948 Mar 27 87 LY 1948 Nov 19 324 LY +1 235

Length of "Snow free Season" Ranked from longest to shortest
Column 1: Year
Columns 2, 3 & 4: last snowfall in the spring, month, day, and Calendar Day (CD) # of the year
Column 5: LY = Leap Year
Column 6: no = Leap Year no ajustment; +1 = Leap Year adjustment, added one day
Columns 7, 8, 9 & 10: first snowfall after Summer, year, month, day, and Calendar Day (CD) # of the year
Column 11: LY = Leap Year
Column 12: +1 = Leap Year adjustment, added one day
Column 13: length of the snow free season (number of days)
"no-snow" = number of days between the last and the first snowfalls

Longest snowfree season was in 2012 at 308 days
Last snowfall after winter Feb.13, Day #44; First snow after summer Dec. 19, Day #354
Snowfree season Feb. 14, Day #14 thru Dec. 18, Day #352, 308 snowfree days

RANKED
Year Year no-snow
2012 Feb 13 44 LY no 2012 Dec 19 354 LY +1 308
2016 Feb 5 36 LY no 2016 Dec 3 338 LY +1 300
2004 Feb 6 37 LY no 2004 Nov 28 333 LY +1 294
2021 Feb 21 52 2021 Dec 10 344 290
2006 Mar 21 80 2006 Dec 31 365 283
2001 Mar 11 70 2001 Dec 18 352 280
2005 Feb 8 39 2005 Nov 15 319 278
2017 Mar 14 73 2017  Dec   17 351 276
1963 Mar 12 71 1963 Dec 10 344 271
2008 Mar 6 66 LY +1 2008 Dec 3 338 LY +1 270
1998 Mar 23 82 1998 Dec 20 354 270
2015 Mar 4 63 2015 Nov 30 334 269
1989 Mar 1 60 1989 Nov 27 331 269
2010 Mar 19 78 2010 Dec 11 345 265
1999 Mar 23 82 1999 Dec 14 348 264
1965 Mar 25 84 1965 Dec 14 348 262
2007 Mar 3 62 2007 Nov 21 325 261
2000 Feb 18 49 LY no 2000 Nov 6 311 LY +1 260
1960 Apr 2 93 LY +1 1960 Dec 20 354 LY +1 259
1981 Mar 4 63 1981 Nov 19 323 258
1968 Feb 25 56 LY no 1968 Nov 9 314 LY +1 256
1954 Mar 29 88 1954 Dec 8 342 252
2011 Mar 26 85 2011 Dec 3 337 250
1949 Apr 14 104 1949 Dec 21 355 249
1964 Mar 25 85 LY +1 1964 Nov 29 334 LY +1 247
1958 Mar 16 75 1958 Nov 17 321 244
1978 Mar 16 75 1978 Nov 16 320 243
1953 Mar 8 67 1953 Nov 7 311 242
1988 Mar 17 77 LY +1 1988 Nov 15 320 LY +1 241
1982 Apr 28 118 1982 Dec 27 361 241
1993 Mar 19 78 1993 Nov 15 319 239
1948 Mar 27 87 LY 1948 Nov 19 324 LY +1 235
1966 Mar 27 86 1966 Nov 18 322 234
2019 Mar 7 66 2019 Oct 28 301 233
1971 Apr 1 91 1971 Nov 22 326 233
1969 Mar 24 83 1969 Nov 14 318 233
1990 Apr 12 102 1990 Dec 2 336 232
1975 Apr 2 92 1975 Nov 20 324 230
1973 Apr 16 106 1973 Dec 4 338 230
1962 Apr 1 91 1962 Nov 19 323 230
2003 Apr 7 97 2003 Nov 23 327 228
1952 Apr 9 100 LY +1 1952 Nov 25 330 LY +1 228
2009 Feb 28 59 2009 Oct  10 283 222
1974 Apr 3 93 1974 Nov 13 317 222
1972 Apr 3 94 LY +1 1972 Nov 13 318 LY +1 222
1959 Mar 26 85 1959 Nov 5 309 222
1956 Apr 6 97 LY +1 1956 Nov 15 320 LY +1 221
1955 Mar 25 84 1955 Nov 2 306 220
1977 Apr 3 93 1977 Nov 9 313 218
1961 Apr 9 99 1961 Nov 15 319 218
1967 May 3 123 1967 Dec 8 342 217
1957 Apr 11 101 1957 Nov 16 320 217
1991 Mar 27 86 1991 Oct 31 304 216
2002 Mar 25 84 2002 Oct 23 296 210
1995 Apr 12 102 1995 Nov 10 314 210
1994 Apr 30 120 1994 Nov 28 332 210
2014 Apr 13 103 2014 Nov 10 314 209
1983 Apr 13 103 1983 Nov 9 313 208
1950 Apr 12 102 1950 Nov 8 312 208
1951 Apr 12 102 1951 Nov 4 308 204
2013 May 2 122 2013 Nov 21 325 201
1979 Apr 2 92 1979 Oct 22 295 201
1976 Mar 30 90 LY +1 1976 Oct 18 292 LY +1 200
1986 Apr 14 104 1986 Nov 1 305 199
1992 Apr 21 112 LY +1 1992 Nov 6 311 LY +1 197
1980 Apr 11 102 LY +1 1980 Oct 27 301 LY +1 197
1997 Apr 12 102 1997 Oct 26 299 195
1987 Mar 29 88 1987 Oct 10 283 193
1984 Apr 29 120 LY +1 1984 Nov 9 314 LY +1 192
2020 Apr 16 107 LY +1 2020 Oct 25 299 LY +1 190
1996 Apr 14 105 LY +1 1996 Oct 22 296 LY +1 189
1970 Apr 1 91 1970 Oct 9 282 189
2018 April 15 105 2018 Oct 14 287 180
1985 Mar 31 90 1985 Sep 29 272 180

All data in these tables are from the National Weather Service and HPRCC data archives.