You'll likely spend much of your trip indoors, but if you're planning to venture beyond the casino, taking a look at local weather data can help you. The hottest months are usually July and August with an average temp of 60°F, while the coldest months are January and February with an average of 13°F. The snowiest months in Perm are March, February, January, and December, with each month seeing an average of 93 inches of snowfall.