New Hampshire experiences diverse snowpack conditions due to its varying mountain ranges. The White Mountains, located in the northern part of the state, receive heavy snowfall and have a longer snowpack duration compared to other regions. Mount Washington, the highest peak in the Northeast, receives over 23 feet of snow annually. This snowpack contributes to several major rivers and watersheds in New Hampshire, including the Androscoggin, Connecticut, and Merrimack Rivers.

Winter climate characteristics include cold temperatures, frequent snowstorms, and strong winds, creating challenging conditions. New Hampshire's snow science and history are notable. The Mount Washington Observatory, established in 1932, studies snow and weather patterns, recording some of the highest winds and lowest temperatures ever recorded in the United States. Additionally, New Hampshire pioneered ski tourism in the 1930s, with the first ski resort opening in 1937.