Climate Insights for Billy Bishop Toronto City Airport

The climate in Billy Bishop Toronto City Airport is cool. The average annual temperature is 9°C and approximately 962mm of precipitation falls per year. Billy Bishop Toronto City Airport receives a notable amount of rainfall throughout the year, including during its driest month. Billy Bishop Toronto City 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 January, February, December, when temperatures can drop to -7°C. Snowfall occurs from January to December, with around 152cm accumulating over the season.

Temperatures in Billy Bishop Toronto City Airport vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -4°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.

Billy Bishop Toronto City Airport is a moderately rainy area, receiving approximately 962mm of precipitation annually, which averages out to around 80mm per month. The wettest month is April, averaging 104mm of rainfall. October and May also tend to see above-average precipitation. The driest month is September, with just 56mm. That's 48mm less than April, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 152cm accumulating over the season. December typically sees the most snow at around 39cm.

Billy Bishop Toronto City Airport is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Billy Bishop Toronto City Airport, which began on June 21, 2026. Billy Bishop Toronto City 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 26°C, while the coldest stretch bottoms out in January near -7°C. Autumn is next, beginning on September 23, 2026 — 84 days from now.

The best time to visit Billy Bishop Toronto City Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 68mm per month. By contrast, January can be quite cold with temperatures dropping to -7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Billy Bishop Toronto City 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.