If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Catmon: The hottest months are usually May and June with an average temp of 82°F, while the coldest months are February and January with an average of 79°F. The rainiest months in Catmon are October, July, June, and November, with each month seeing an average of 11 inches of rainfall.