BML is currently 70F and they've only recorded 70+ after this date once in their short history of the ASOS going back to 1996. That was a 72F on 11/11/2002. The COOP goes back to 1886 and has a few more 70s sprinkled in through the month. But yeah, this is pretty rare. The past 2 Novies were really cold.
Winters are very long and frigid so a little lingering warmth into late fall isn't exactly a bad thing. I know you probably want the kitchen sink thrown at you in your first winter though.