Weather is probably a major factor when you plan your trip to White Mountain, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 49°F, while the coldest months are January and February with an average of 8°F. The snowiest months in White Mountain are February, March, November, and December, with each month seeing an average of 23 inches of snowfall.