January in Newman is the rainiest and the cloudiest month of the year. In January, the weather in Newman is typically hot. Average daily high temperature in January is about 35 degrees above zero. On average, Newman has 12 partly cloudy, 8 cloudy, 6 sunny, and 5 rainy days in January. The rains are usually moderate. January as well as February and December is considered the most uncomfortable time to visit Newman.