Weather is probably a major factor when you plan your trip to Wrangell, 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 54°F, while the coldest months are February and December with an average of 28°F. The snowiest months in Wrangell are February, January, December, and March, with each month seeing an average of 11 inches of snowfall.