CLIMATE OVERVIEW. Durango, Colorado, gets 19 inches of rain per year. The US average is 39. Snowfall is 79 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 52.
Quick Answer. Most hummingbirds in America and Canada spend the winter in Mexico or South America before migrating to their breeding ground in southern U.S. as early as February or the first week of March. Some South American hummingbird species also travel north to the tropics during the southern winter.
Map showing the average spring migration arrival dates for Ruby-Throated Hummingbirds in North America. During migration, a hummingbird's heart beats up to 1,260 times a minute, and its wings flap 15 to 80 times a second.