July in Wichita Falls is the hottest month of the year. In July, the weather in Wichita Falls is typically hot. Average daily high temperature in July is about 35 degrees above zero. On average, Wichita Falls has 21 sunny, 6 partly cloudy, and 4 rainy days in July. The rains are usually heavy. July as well as January, August, and December is considered the most uncomfortable time to visit Wichita Falls.