If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Fairview: The hottest months are usually August and July with an average temp of 64°F, while the coldest months are December and February with an average of 40°F. The rainiest months in Fairview are December, January, November, and March, with each month seeing an average of 8 inches of rainfall.