Weather is probably a major factor when you plan your trip to Ürümqi, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 71°F, while the coldest months are January and December with an average of 20°F. The snowiest months in Ürümqi are December, February, January, and November, with each month seeing an average of 18 inches of snowfall.