it seems like less snowy seasons come after periods of high snowfall
1955-56 to 1968-69 were snowy, 1969-70 to 1975-76 were not snowy, 1976-77 to 1978-79 were snowy, 1979-80 to 1991-92 were not snowy, 1992-93 to 1995-96 were snowy, 1996-97 to 1999-2000 were not snowy, 2000-01 to 2005-06 were snowy, 2006-07 to 2008-09 were not snowy, 2009-10 to 2017-18 were snowy, 2018-19 to 2024-25 not snowy.
Obviously there were some mixed periods in there too, but predominantly these thing go in patterns snowy and not snowy.