Climate Overview
The climate in Stewart Airport is cold. The average annual temperature is 1°C and approximately 2688mm of precipitation falls per year. Stewart Airport receives a notable amount of rainfall throughout the year, including during its driest month. Stewart 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, December, January, when temperatures can drop to -9°C. Stewart Airport experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Stewart Airport vary considerably across the year, with a 24°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 15°C with a mean of 11°C. The coldest month is February, when overnight lows fall to -9°C and the daily average is -7°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.
Precipitation
Stewart Airport is a very wet location, receiving approximately 2688mm of precipitation annually, which averages out to around 224mm per month. The wettest month is November, averaging 341mm of rainfall. January and October also tend to see above-average precipitation. The driest month is May, with just 115mm. That's 226mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Stewart Airport receives heavy snowfall, accumulating around 1234cm annually from January through December. The snowiest month is January, with approximately 221cm. Winter travel should account for significant snow cover.
Wind
Stewart Airport is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 7km/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
88 days until Summer
It is currently spring in Stewart Airport, which began on March 20, 2026. Stewart 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 15°C, while the coldest stretch bottoms out in February near -9°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from -6 to 8°C. Rainfall is heavy, totalling around 475mm across the season with a monthly average of 158mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 5 to 15°C. Rainfall is heavy, totalling around 533mm across the season with a monthly average of 178mm. Winds are generally light, averaging 8km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -6 to 10°C. Rainfall is heavy, totalling around 880mm across the season with a monthly average of 293mm. Expect around 371cm of snow accumulation during this period. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -9 to -4°C. Rainfall is heavy, totalling around 801mm across the season with a monthly average of 267mm. Expect around 557cm of snow accumulation during this period. Winds are generally light, averaging 8km/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 Stewart 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.
