Calgary Weather

Calgary’s weather is notoriously unpredictable, a characteristic that endears it to some and frustrates others. Nestled near the foothills of the Canadian Rockies, the city experiences a wide range of conditions, often within a single day. This volatility stems from its unique geographical location, which exposes it to both arctic air masses from the north and warm, dry Chinook winds from the west.

Winter in Calgary is typically long and cold, stretching from November to March. Temperatures frequently dip below freezing (0°C or 32°F), and snowfall is common. However, the city also benefits from the aforementioned Chinook winds. These warm, dry winds can dramatically raise temperatures in a matter of hours, melting snow and providing brief respites from the deep freeze. Chinooks are most frequent in late winter and early spring, bringing welcome relief and contributing to Calgary’s reputation for having milder winters than other Canadian cities at similar latitudes.

Spring in Calgary is a fickle season. It can arrive teasingly with warm days and blooming flowers, only to be followed by sudden snowstorms. This transitional period is characterized by fluctuating temperatures and unpredictable precipitation. While the average temperatures gradually rise, frost is still a possibility well into May. Calgarians learn to be adaptable and prepared for anything during the spring months.

Summer is generally warm and sunny, with long daylight hours. Average daytime temperatures range from 20°C to 25°C (68°F to 77°F), but can occasionally exceed 30°C (86°F). Thunderstorms are common in the summer, providing dramatic displays and much-needed moisture. The city’s proximity to the mountains means that cooler air can also sweep in, resulting in cooler days even in the heart of summer. The relatively low humidity makes the summer heat more bearable than in many other parts of North America.

Autumn is often a short but beautiful season in Calgary. The leaves turn vibrant shades of red, orange, and yellow, creating a stunning landscape. However, the transition to winter is usually rapid, with temperatures dropping quickly and the first snowfall occurring as early as October. The crisp, clear air and sunny days of autumn are a welcome contrast to the harsher weather that follows. Calgary’s average annual precipitation is relatively low compared to other major Canadian cities. This is partly due to the rain shadow effect of the Rocky Mountains. The mountains block much of the moisture coming from the Pacific Ocean, resulting in a drier climate for Calgary. Despite the lower precipitation, the city experiences a variety of weather events throughout the year, making it a dynamic and interesting place to live.