If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Central Vermont- Killington: The hottest months are usually July and August, with an average temperature of 18°C, while the coldest months are January and February, with an average of -5°C. The snowiest months in Central Vermont- Killington are January, February, December and March, with each month seeing an average of 46 inches of snowfall.