If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Trepalle: The hottest months are usually July and August with an average temp of 46°F, while the coldest months are January and February with an average of 15°F. The snowiest months in Trepalle are March, April, May, and November, with each month seeing an average of 16 inches of snowfall.