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.
Other factors that influence when hummingbirds migrate include: 1  Food: Hummingbirds will move along their migration journeys as food sources appear and disappear. 2  Weather: Local storms and strong winds can impact hummingbird migration to a minor degree, delaying the birds' journeys by a day or two. 3  Age: Mature birds often start their migration 4  ... G