Climate Insights for Grande Prairie

The climate in Grande Prairie is cool. The average annual temperature is 3°C and approximately 522mm of precipitation falls per year. July is the wettest month, receiving around 86mm of rainfall. Grande Prairie 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 -15°C. Snowfall occurs from January to December, with around 155cm accumulating over the season.

Grande Prairie has a wide annual temperature range, spanning 39°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 17°C. The coldest month is February, when overnight lows fall to -15°C and the daily average is -11°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 8°C shift in average temperatures.

Grande Prairie is a relatively dry area, receiving approximately 522mm of precipitation annually, which averages out to around 43mm per month. The wettest month is July, averaging 86mm of rainfall. June and August also tend to see above-average precipitation. The driest month is March, with just 24mm. That's 63mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 155cm accumulating over the season. November typically sees the most snow at around 29cm.

Grande Prairie 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 June, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, 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 1km/h between the calmest and windiest months.

It is currently autumn in Grande Prairie, which began on September 23, 2026. Grande Prairie 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 February near -15°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Grande Prairie is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 74mm per month. By contrast, February can be quite cold with temperatures dropping to -15°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 Grande Prairie 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.