I was chatting to an older gentleman about Katydids. They're green insects that look a little like a Cricket, they live much of their life in trees and like Crickets they can sing. His theory was ninety days after a Katydid first sings there'll be a frost. Which means we're looking at September 25th 2015.
The other point he raised was the Almanac. According to the Almanac the first
frost for our area will be on September 18th 2015. And I have to agree with him
that when dealing with the prospect of winter it's these little things that make
it more manageable.