January in Austin is the windiest, the cloudiest, and the most freezing month of the year. In January, the weather in Austin is typically freezing. Average daily high temperature in January is about 7 degrees below zero. On average, Austin has 24 cloudy, 5 snowy, and 2 sunny days in January. The snowfalls are usually light. January as well as March, April, and November is considered the most uncomfortable time to visit Austin.