If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Kitimat: The hottest months are usually July and August with an average temp of 55°F, while the coldest months are December and February with an average of 28°F. The snowiest months in Kitimat are December, February, January, and March, with each month seeing an average of 15 inches of snowfall.