cold weather #10 Appleton, WI Spencer Platt / Staff #10 Appleton, WI Average Low Temp: 15.1 degrees #9 Green Bay, WI Getty Images #9 Green Bay, WI Average Low Temp: 14.6 degrees #8 Minneapolis, MN Getty Images #8 Minneapolis, MN Average Low Temp: 14.2 degrees #7 Rocheste...