January in North York is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in North York is typically freezing. Average daily high temperature in January is about 2 degrees below zero. On average, North York has 11 cloudy, 10 partly cloudy, 6 snowy, 3 sunny, and 1 rainy day in January. The snowfalls are usually moderate.