Is it Autumn?

So. Everybody says there is a fabulous autumn around here. How do you define Autumn? I'm learning that terms have different definitions here than I'm used to. Apparently "Autumn" is one of those. To me, "Autumn" is a time when it is cool...all day. O.K. the leaves turn colors but shouldn't I be able to wear a sweater without sweating? Shouldn't my air conditioner be turned off? Shouldn't I be craving soup? Hot chocolate?....o.k. I can always drink hot chocolate....Hot cider? Should the temps next week NOT be in the 80's?
Just wonderin'.