Climate Insights for Fort Nelson

The climate in Fort Nelson is cold. The average annual temperature is 1°C and approximately 453mm of precipitation falls per year. July is the wettest month, receiving around 90mm of rainfall. Fort Nelson 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 December, January, February, when temperatures can drop to -20°C. Snowfall occurs from January to December, with around 100cm accumulating over the season.

Fort Nelson has a wide annual temperature range, spanning 44°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 18°C. December brings the harshest conditions, with lows dropping to -20°C and an average temperature of -17°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 12°C shift in average temperatures.

Fort Nelson is a relatively dry area, receiving approximately 453mm of precipitation annually, which averages out to around 38mm per month. The wettest month is July, averaging 90mm of rainfall. June and August also tend to see above-average precipitation. The driest month is December, with just 13mm. That's 77mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 100cm accumulating over the season. November typically sees the most snow at around 20cm.

Fort Nelson is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 10km/h in winter, 12km/h in spring, 12km/h in summer, 11km/h in autumn.

It is currently spring in Fort Nelson, which began on March 20, 2026. Fort Nelson 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 24°C, while the coldest stretch bottoms out in December near -20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Fort Nelson is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 81mm per month. By contrast, December can be quite cold with temperatures dropping to -20°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Fort Nelson 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.