If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Easton: The hottest months are usually August and July with an average temp of 58°F, while the coldest months are December and January with an average of 27°F. The snowiest months in Easton are January, December, February, and March, with each month seeing an average of 74 inches of snowfall.