Climate Overview
The climate in Banff Airport is cold. The average annual temperature is -2°C and approximately 682mm of precipitation falls per year. June is the wettest month, receiving around 117mm of rainfall. Banff Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are December, February, January, when temperatures can drop to -17°C. Banff Airport experiences heavy snowfall, typically from January through December.
Temperature
Banff Airport has a wide annual temperature range, spanning 36°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 19°C with a mean of 12°C. December brings the harshest conditions, with lows dropping to -17°C and an average temperature of -14°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.
Precipitation
Banff Airport is a relatively dry area, receiving approximately 682mm of precipitation annually, which averages out to around 57mm per month. The wettest month is June, averaging 117mm of rainfall. July and August also tend to see above-average precipitation. The driest month is January, with just 20mm. That's 98mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Banff Airport receives heavy snowfall, accumulating around 246cm annually from January through December. The snowiest month is April, with approximately 37cm. Winter travel should account for significant snow cover.
Wind
Banff Airport is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Banff Airport, which began on March 20, 2026. Banff Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 19°C, while the coldest stretch bottoms out in December near -17°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -12 to 9°C. Precipitation is moderate at around 161mm for the season, averaging 54mm per month. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 2 to 19°C. Precipitation is moderate at around 297mm for the season, averaging 99mm per month. Winds are generally light, averaging 12km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -12 to 13°C. Rainfall is relatively light, with around 140mm over the season and a monthly average of 47mm. Expect around 69cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -17 to -8°C. Rainfall is relatively light, with around 84mm over the season and a monthly average of 28mm. Expect around 66cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Banff Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
