I can always warm up, cooling is a problem. Staying in the shade. Plan outdoor stuff early or late. Drink lots of cool water. Wear light reflective clothing, sunscreen, a hat.

Way back when, the young PFC and his company went to Alaska in January for a month. Got to -69 degrees, not with wind chill. We returned to Ft Bragg, turned in our cold gear, drew our hot gear, and 2 weeks later deployed to Panama for a month. Never got below 70 degrees. How's that for a temp swing?