January weather forecast in Sidney

January in Sidney is the snowiest, the windiest, the cloudiest, and the most freezing month of the year. In January, the weather in Sidney is typically freezing. Average daily high temperature in January is about 1 degree below zero. On average, Sidney has 11 cloudy, 9 snowy, 5 rainy, 4 sunny, and 2 partly cloudy days in January. The snowfalls are usually moderate.