Def further S and E it has this year beat because of December which was kind of iffy once inside 495 and south of here....I went most of December with snow cover, but you didn't have to go far for a lot of month not having it. Driving into Quincy, I always noticed it disappearing east of about Dover/Dedham in December.
If you go further north north into ORH county, 2007-2008 will have this year beat. They went wire to wire there once the 12/3/07 storm dropped a few inches up there.