Planning for the weather is a good way to make your trip to Sunburst 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 December with an average of 24°F. The snowiest months in Sunburst are April, February, January, and March, with each month seeing an average of 24 inches of snowfall.