Truly the most outstanding feature of Mt. Washington is its weather, considered by many to be the "worst in the world". An average wind velocity of 35 mph, coupled with an average temperature of 27.1 F (-2.7C) makes for extreme wind chill conditions. Wind exceeds hurricane force (75 mph) over one hundred days a year. The mountain's topography and high elevation create an acceleration effect on the wind in much the same way a river's velocity increases as it passes over a rapid.

For further weather info go to:
www.weather.com