January in Lawson is the rainiest, the cloudiest, and the warmest month of the year. In January, the weather in Lawson is typically warm. Average daily high temperature in January is about 25 degrees above zero. On average, Lawson has 16 rainy, 7 sunny, 6 partly cloudy, and 2 cloudy days in January. The rains are usually heavy. January as well as February, March, June, and July is considered the most uncomfortable time to visit Lawson.