If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Walsenburg: The hottest months are usually July and August with an average temp of 62°F, while the coldest months are January and February with an average of 25°F. The snowiest months in Walsenburg are January, December, February, and April, with each month seeing an average of 9 inches of snowfall.