Taking into account the local weather in Edson is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 57°F, while the coldest months are February and December with an average of 17°F. The snowiest months in Edson are February, March, January, and April, with each month seeing an average of 22 inches of snowfall.