When to visit
In summer, daytime temperatures range from 10 °C to 25 °C and sometimes exceed 30 °C an average of 5.1 days anytime in June, July and August, and occasionally as late as September or as early as May, and in winter drop below or at −30 °C 3.7 days of the year. As a consequence of Calgary's high elevation and aridity, summer evenings tend to cool off, with monthly average low temperatures below 10 °C throughout the summer months.
Calgary has the most sunny days year round of Canada's 100 largest cities, with just over 332 days of sun
Jul Prime time for festivals, with Edmonton's Street Performers and the Calgary Stampede.
Jul–Sep Banff and Jasper's trails are snow-free, making a full range of hikes available.
Dec–Feb Winter-sports season in the Rocky Mountains.
