Calgary Weather

Summer days in Calgary are normally warm with high temperatures in June, July and August averaging 21C to 23C. Evenings are cooler (7C to 10C) because of Calgary's proximity to the mountains. By comparison, a summer day in Drumheller, Alberta is often very hot and dry, approximating desert-like conditions. A summer day in the mountains can be hot but the evenings are always cool.

Calgary sees its greatest amount of rain during the spring and
summer. June and July are the city's wettest months with 70mm to 77mm normally falling.

As for winter precipitation, the mountain areas near Calgary receive significant amounts of snow while Calgary itself normally sees only a moderate snowfall - less than 20cm in the months of December, January and February. Daytime temperatures during these winter months are normally at or below 0C while evening temperatures drop to a frigid -11C to -15C.

Meantime, a unique phenomenon called a Chinook can transform Calgary from frosty to toasty in a matter of a day, even in winter. A Chinook is a warm, dry wind that blows down the eastern slopes of the Rocky Mountains, sometimes raising the temperature more than 20 degrees.

Please visit our What to Pack page for helpful tips on packing for your trip to Calgary