July in Lawson is the coldest month of the year. In July, the weather in Lawson is typically warm. Average daily high temperature in July is about 11 degrees above zero. On average, Lawson has 13 sunny, 7 rainy, 7 partly cloudy, and 4 cloudy days in July. The rains are usually moderate. July as well as January, February, March, and June is considered the most uncomfortable time to visit Lawson.