Climate Insights for Fredericton

The climate in Fredericton is cool. The average annual temperature is 7°C and approximately 1200mm of precipitation falls per year. Fredericton receives a notable amount of rainfall throughout the year, including during its driest month. Fredericton 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 -12°C. Snowfall occurs from January to December, with around 191cm accumulating over the season.

Fredericton has a wide annual temperature range, spanning 38°C from the coldest to warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 20°C. The coldest month is February, when overnight lows fall to -12°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 March and April, with a 7°C shift in average temperatures.

Fredericton is a fairly wet location, receiving approximately 1200mm of precipitation annually, which averages out to around 100mm per month. The wettest month is December, averaging 119mm of rainfall. January and November also tend to see above-average precipitation. The driest month is February, with just 89mm. That's 30mm less than December, 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 191cm accumulating over the season. February typically sees the most snow at around 44cm.

Fredericton is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 20km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 19km/h in winter, 19km/h in spring, 15km/h in summer, 17km/h in autumn.

It is currently spring in Fredericton, which began on March 20, 2026. Fredericton 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 February near -12°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Fredericton is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 95mm per month. By contrast, February can be quite cold with temperatures dropping to -12°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 Fredericton 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.