Taking into account the local weather in Lac La Hache can help you maximize your time at the pool during your trip. The hottest months are usually July and August with an average temp of 58°F, while the coldest months are February and December with an average of 22°F. The snowiest months in Lac La Hache are January, April, February, and March, with each month seeing an average of 20 inches of snowfall.