Weather will likely play an important role when you plan your trip to Canmore, but bear 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 temperature of 12°C, while the coldest months are December and February, with an average of -10°C. The snowiest months in Canmore are February, March, December and November, with each month seeing an average of 19 cm of snowfall.