In terms of weather, the park's abundant rainfall and high summertime humidity provide excellent growing conditions. In the Smokies, the average annual rainfall varies from approximately 55 inches in the valleys to over 85 inches on some peaks — more than anywhere else in the country except the Pacific Northwest. During wet years over eight feet of rain falls in the high country. The relative humidity in the park during the growing season is about twice that of the Rocky Mountain region.
AVERAGE TEMPS IN LOWER ELEVATIONS (Gatlinburg)
Summer highs between 70 and 80, with lows between 50 and 60.
Winter highs between 40 and 50, with lows between 20 and 30.
AVERAGE TEMPS IN UPPER ELEVATIONS
Summer highs between 50 and 60, with lows between 40 and 50.
Winter highs between 30 and 40, with lows between 10 and 20.