January weather forecast in Waterloo

January in Waterloo is the snowiest and the most freezing month of the year. In January, the weather in Waterloo is typically freezing. Average daily high temperature in January is about 2 degrees below zero. On average, Waterloo has 11 cloudy, 9 snowy, 6 partly cloudy, 3 sunny, and 2 rainy days in January. The snowfalls are usually moderate.