I went out for a nice afternoon hike. It did make it to -20 for a hi.but now the temp is dropping fast.When the winter temperatures get cold it’s interesting,you can here noises from a long ways off.A dog barking miles away I can here.Then complete silence.Next I might here a chainsaw but it’s miles away.when it’s dark and I am quiet listening, I can here wolves howling, coyotes yelping , Owls hooting.Just another day in 