Climate Overview
The climate in Jean Lesage International Airport is cool. The average annual temperature is 6°C and approximately 1370mm of precipitation falls per year. Jean Lesage International Airport receives a notable amount of rainfall throughout the year, including during its driest month. Jean Lesage International 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 February, January, December, when temperatures can drop to -14°C. Jean Lesage International Airport experiences heavy snowfall, typically from January through December.
Temperature
Jean Lesage International Airport has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 25°C and the mean temperature sits around 20°C. The coldest month is February, when overnight lows fall to -14°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 9°C shift in average temperatures.
Precipitation
Jean Lesage International Airport is a fairly wet location, receiving approximately 1370mm of precipitation annually, which averages out to around 114mm per month. The wettest month is August, averaging 152mm of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 83mm. That's 69mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Jean Lesage International Airport receives heavy snowfall, accumulating around 220cm annually from January through December. The snowiest month is January, with approximately 51cm. Winter travel should account for significant snow cover.
Wind
Jean Lesage International Airport is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Jean Lesage International Airport, which began on March 20, 2026. Jean Lesage International 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 25°C, while the coldest stretch bottoms out in February near -14°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -7 to 19°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 12 to 25°C. Rainfall is heavy, totalling around 441mm across the season with a monthly average of 147mm. Winds are generally light, averaging 15km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -2 to 20°C. Rainfall is heavy, totalling around 334mm across the season with a monthly average of 111mm. Expect around 26cm of snow accumulation during this period. Winds are moderate at around 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -14 to -2°C. Precipitation is moderate at around 289mm for the season, averaging 96mm per month. Expect around 135cm of snow accumulation during this period. Winds are moderate at around 17km/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 Jean Lesage International 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.
