Weather can make or break a roadtrip, so here's some data about year-round temperatures in Whati to help you plan yours: The hottest months are usually July and August with an average temp of 56°F, while the coldest months are January and February with an average of -5°F. The snowiest months in Whati are February, March, December, and January, with each month seeing an average of 72 inches of snowfall.