What is your favorite weather to hunt in?

The first hard freeze of the year was last night October 5th.  That will do a couple of things for Colorado Pheasant Hunting.
1–It will kill the grasses and make the scenting easier for the dogs.  Green grasses are hard for dogs to work and scent in.
2–It will put a hurt on the bugs that bite!!
What is your favorite weather to hunt in??  Let us know.