If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Henryville: The hottest months are usually July and August with an average temp of 68°F, while the coldest months are January and February with an average of 31°F. The snowiest months in Henryville are January, February, December, and November, with each month seeing an average of 5 inches of snowfall.