When you travel with your pet, keeping track of the weather can help you make the trip more safe and fun for everyone. The hottest months are usually July and August, with an average temperature of 11°C, while the coldest months are December and February, with an average of -11°C. The snowiest months in Vermilion Crossing are February, March, December and November, with each month seeing an average of 19 cm of snowfall.