I second this...
About six years ago, New York had really warm and really dry conditions for about two weeks before the season.
Alot of breeding got done early, which led to alot of hens being on nests early...
I can recall five or six times I had 5+ birds coming in to one location, gobbling their heads off.
I have a theory that the warmer the weather and drier before the season, the less henned up the gobblers will be, due to the fact that alot are bred and on nests.
Also, the warmer the sooner the woods get vegitated, which means more cover for nests, another reason that early warm and dry are good for you freezer