Planning for the weather is a good way to make your trip to Shelby relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 65°F, while the coldest months are February and January with an average of 24°F. The snowiest months in Shelby are February, January, October, and April, with each month seeing an average of 8 inches of snowfall.