Perhaps in the 70's or 80's...I have a vague memory of Boston setting a record for most days with snow but it didn't amount to all that much snowfall...
3.6 in Methuen
Deepest snow depth in front of home is 20.5
Deepest snow depth in rear of home is 30.3
Two things to keep in mind with that area:
That area doesn't receive any sunshine and that area had some snow remaining after the January thaw.