Taking into account the local weather in Parson 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 December and February with an average of 18°F. The snowiest months in Parson are January, February, April, and November, with each month seeing an average of 124 inches of snowfall.