Climate Overview
The climate in Fort St. James (Perison) Airport is cool. The average annual temperature is 4°C and approximately 529mm of precipitation falls per year. November is the wettest month, receiving around 63mm of rainfall. Fort St. James (Perison) 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 -11°C. Snowfall occurs from January to December, with around 144cm accumulating over the season.
Temperature
Temperatures in Fort St. James (Perison) Airport vary considerably across the year, with a 34°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 17°C. The coldest month is February, when overnight lows fall to -11°C and the daily average is -7°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.
Precipitation
Fort St. James (Perison) Airport is a relatively dry area, receiving approximately 529mm of precipitation annually, which averages out to around 44mm per month. The wettest month is November, averaging 63mm of rainfall. October and June also tend to see above-average precipitation. The driest month is April, with just 27mm. That's 36mm less than November, 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 144cm accumulating over the season. January typically sees the most snow at around 30cm.
Wind
Fort St. James (Perison) Airport is mildly breezy, with an average annual wind speed of 13km/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 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 11km/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 Fort St. James (Perison) Airport, which began on March 20, 2026. Fort St. James (Perison) 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 23°C, while the coldest stretch bottoms out in February near -11°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -6 to 18°C. Rainfall is relatively light, with around 94mm over the season and a monthly average of 31mm. Winds are generally light, averaging 14km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 8 to 23°C. Rainfall is relatively light, with around 141mm over the season and a monthly average of 47mm. Winds are generally light, averaging 14km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -4 to 17°C. Precipitation is moderate at around 166mm for the season, averaging 55mm per month. Expect around 41cm of snow accumulation during this period. Winds are generally light, averaging 13km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -11 to -2°C. Rainfall is relatively light, with around 128mm over the season and a monthly average of 43mm. Expect around 84cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Fort St. James (Perison) Airport is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 45mm per month. By contrast, February can be quite cold with temperatures dropping to -11°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Fort St. James (Perison) 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.
