Does Fall Exist?

In school I'm sure I learned about four seasons, but for some reason I'm only ever participating in two-  summer and winter.  Last week I still wasn't wearing socks because it wasn't getting chilly.  This week, I'm brushing snow off my ripe tomatoes.  Granted, they're not as tangy as they were a few weeks ago, but still they are producing and that's pretty amazing for the end of October.  The kids were elated to see the first snow- they ran right out and ate some.  Hopefully not off the ground.