January in Railway Crossing 21 is the cloudiest and the most freezing month of the year. In January, the weather in Railway Crossing 21 is typically freezing. Average daily high temperature in January is about 2 degrees below zero. On average, Railway Crossing 21 has 11 cloudy, 11 partly cloudy, 8 sunny, and 1 snowy day in January. The snowfalls are usually light.