Cold enough to brake your pull cord to start it. happen to me one year on lake Gogabic(not shure how to spell that) I was crossing lake to get to silver city and i opened up my shield a 1/8 of an inch and it froze my eyeballs solid and we were crossing at 15mph any faster you could not take it my budy's hands froze to his bars it was 11pm at night to old people were fround frozen under a bridge that year, cause there sled broke down and they were by there selfs. Crash dummy