I verified (from my archived blog posts) that last year we waited until the end of October (October 22, to be exact) before we fired up the woodstove.
But last year we had a very good reason (other than stubbornness) to wait. Last year, we didn't have the woodstove. The "new" woodstove was installed around the eighteenth of October, and we had a to wait a couple of days for everything to dry before we built the first fire.
I think we can wait a little longer. It's not really that cold, yet. We haven't even had our first frost at my house. I smelled wood smoke this morning, which means one of my neighbors has fired up his woodstove, and I know many people more inland (where they have had a frost already) who've already put the heat on.
The thermostat in the hall says it's 60° in my house right now, which isn't cold - at least by Maine standards. In fact, 60° on a clear, bright day, like today, would be a nice, late spring beach day ... and a 60° ocean temperature would feel like a bathtub - compared to the water temperature at other times of the year :).
Deus Ex Machina (ironically, the "native" Mainer) is the one who seems more affected by the cold and heat, and he'll start the first fire ... but he is out of town this weekend at a conference in northern Maine. So, for the next three days, at least, the woodstove will remain cold ... because I'm going to see how long I can hold out.
Of course, I think Little Fire Faery would probably prefer it if I were more like her dad ;).