If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Schomberg: 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 Schomberg are January, March, February, and December, with each month seeing an average of 7 inches of snowfall.