If you're hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Drayton Valley: The hottest months are usually July and August with an average temp of 59°F, while the coldest months are February and December with an average of 16°F. The snowiest months in Drayton Valley are March, February, January, and October, with each month seeing an average of 7 inches of snowfall.