Grumpy, I fish the river below dams and It rarly freezes,So I base my facts on what I see down there where as fish can miagrate north or south to there liking of food, temps,or waterclarity. What sticks out in my mind is yes they might bite better after a year of cold weather but....do I want to catch a bunch of little fish say forinstence in New York where the have long winters or do I go to Fl, Tx,Ca,or Mexico for that hog ...not much winter down there... just my thought on a cold winter day.chuck