NE OK....
74 in Phoenix right now but the morning was chilly.
Many years ago in my cross country skiing days when I lived in Milwaukee, WI that was a perfect skiing temperature, especially with a bright blue sky and cold, white snow. It was easy to work up a body temperature that kept me warm and dry, allowing me to go many miles. Indeed, the way to spot a novice was to look for somebody who was over dressed. The key to proper dressing was to be acutely cold at the start of a run, work hard, get warm, and then go all day.