Taking into account the local weather in Olcott 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 68°F, while the coldest months are February and January with an average of 31°F. The snowiest months in Olcott are January, February, March, and December, with each month seeing an average of 15 inches of snowfall.