The Long Winter, also known as the Eternal Winter, the Year of Cold, or the Summerless Year, was the year of 1906, which brought unusually cold and wet weather to much of the continent of North America. Snow began unusually early the previous year, with many areas of the country having their first snowfalls in September, some areas of the Mountain West, the High Plains, Upstate New York, Northern New England, and Canada having their first snowfalls in August, and some of the highest elevations of the Mountain West, northern New England, and Canada having their first snowfalls in July. The North American Winter of 1905-06 was extremely cold and snowy across the continent, with frosts being reported as far south as Havana, Cuba and hard freezes as far south as Key West, Florida. Snow fell in all of the continental United States, Canada, and parts of northern Mexico, and the extreme cold and heavy snowfall did not end until May or even June in many areas. The summer of 1906 was very cold and wet, and areas as far south as Atlanta, Georgia had snow during the month of July 1906.

Community content is available under CC-BY-SA unless otherwise noted.