Climate Insights for Banff

The climate in Banff is cold. The average annual temperature is -2°C and approximately 770mm of precipitation falls per year. June is the wettest month, receiving around 116mm of rainfall. Banff is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, December, January, when temperatures can drop to -18°C. Banff experiences heavy snowfall, typically from January through December.

Banff has a wide annual temperature range, spanning 36°C from the coldest to warmest months. August is the warmest month, though highs remain moderate at 18°C with a mean of 10°C. February brings the harshest conditions, with lows dropping to -18°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 8°C shift in average temperatures.

Banff is a relatively dry area, receiving approximately 770mm of precipitation annually, which averages out to around 64mm per month. The wettest month is June, averaging 116mm of rainfall. July and May also tend to see above-average precipitation. The driest month is January, with just 25mm. That's 91mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Banff receives heavy snowfall, accumulating around 411cm annually from January through December. The snowiest month is April, with approximately 60cm. Winter travel should account for significant snow cover.

Banff is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Banff, which began on June 21, 2026. Banff 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 August at around 18°C, while the coldest stretch bottoms out in February near -18°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The table below shows monthly climate averages for Banff 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.