Planning for the weather is a good way to make your trip to Harbin relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 67°F, while the coldest months are January and December with an average of 8°F. The snowiest months in Harbin are January, November, December, and March, with each month seeing an average of 35 inches of snowfall.