Weather is only one factor, but it can really affect your travel plans, especially when you're planning an extended stay in Harrold. The hottest months are usually July and August with an average temp of 73°F, while the coldest months are January and February with an average of 25°F. The snowiest months in Harrold are April, December, January, and February, with each month seeing an average of 7 inches of snowfall.