January in Alamogordo is the coldest month of the year. In January, the weather in Alamogordo is typically cold. Average daily high temperature in January is about 8 degrees above zero. On average, Alamogordo has 24 sunny, 6 partly cloudy, and 1 rainy day in January. The rains are usually light. January as well as December is considered the most uncomfortable time to visit Alamogordo.