If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Houghton Lake: The hottest months are usually July and August with an average temp of 65°F, while the coldest months are February and January with an average of 25°F. The snowiest months in Houghton Lake are January, February, December, and March, with each month seeing an average of 8 inches of snowfall.