August in Spring Hill is the cloudiest and the hottest month of the year. In August, the weather in Spring Hill is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Spring Hill has 20 rainy, 5 sunny, 5 partly cloudy, and 1 cloudy day in August. The rains are usually heavy. August as well as June, July, and September is considered the most uncomfortable time to visit Spring Hill.