Honestly I usually consider winter DEC-FEB-outside of the first week or so of March it's over...but I see your point...from epic long lasting cold to summer and the entire northeastern snowpack wiped out-that's ugly
Seems like they all end early these days....we got the 2/22 storm which really saved things, but typically seems to wind down late Feb-when was the last time we had March snow? 2019 here.