Denver Weather in December

Denver at 5,280 feet (exactly one mile high) has a semi-arid climate with 300 days of sunshine annually. The Rocky Mountains 40 miles to the west dramatically influence weather — Chinook winds can raise temperatures 50°F in hours, and afternoon thunderstorms are nearly daily in summer. Snowstorms can be intense but melt quickly due to high altitude sun.

Holiday season. Many cities decorate beautifully. Book ahead for December travel.