Which region in the United States has the fewest thunderstorms per year

Answer: The West coast region has the fewest thunderstorms per year

Explanation: Oregon, Washington, California, Alaska and Hawaii are all examples of states in the west coast region of the United States.

The west coast region having the fewest thunderstorms is due to two main factors which are; coldness of the pacific ocean and the dryness of air in the region (Low humidity). These two conditions doesn't give room for the formation of any thunderstorm activity.