Whether or not this methodology holds true I cannot say for certain, but I know colder days are ahead. My winter jacket is already hanging by the front door, directly above my Bean boots. My shovel is standing desolate in the entry way. The first snowfall has already made its way to the mountains and far Northern Maine.
My suggestion: Keep an armload of firewood by the stove to cut the chills of early mornings and always keep a good book on the coffee table for snowed-in afternoons.
Below are photos from a local hike this weekend and evidence of a mild winter to come.