Stafford & Union must have a fair amount of stressed out trees...lol
Besides, it's 9/16, not 9/30. Peak isn't for another month or so here and 6 weeks for the valley. The leaves changes not only by temperature but by daylight as well. It's a balance of the tree being able to produce the sugar it needs given the temperature with the amount of daylight available.
I remember one year, I think it was 1988 or 1989 when I was at Lyndon where we had a very warm and storm free late Summer/early Fall and not only did the leaves change late but when the leaves changed they stayed on trees for a very long time. It gave the effect that it looked like peak from Connecticut to Northern Vermont. Perhaps we'll get one of those years?