Planning for the weather is an important factor for making your trip to Whitehall a success, especially when you’re splurging. The hottest months are usually July and August with an average temp of 67°F, while the coldest months are February and January with an average of 29°F. The snowiest months in Whitehall are January, March, October, and February, with each month seeing an average of 14 inches of snowfall.