People in Michigan's ski industry are happy about the early cold weather.
Most of Michigan's ski hills are open already.
Mickey McWilliams is Executive Director of the Michigan Snow Sports Industries Association. She says ski resorts can make snow when the temperature is slightly above 28 degrees Fahrenheit.
“That's kind of the magic number,” says McWilliams, “If you look at your thermometer outside, and its 28, you know that there's snow on our slopes.”
McWilliams says most Michigan skiers do most of their skiing in-state.