Climate Insights for Jasper

The climate in Jasper is warm and mild. The average annual temperature is 21°C and approximately 1655mm of precipitation falls per year. Jasper receives a notable amount of rainfall throughout the year, including during its driest month. Jasper 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 January, December, February, when temperatures can drop to 7°C.

Temperatures in Jasper vary considerably across the year, with a 27°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 34°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 7°C and an average of 11°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Jasper is a fairly wet location, receiving approximately 1655mm of precipitation annually, which averages out to around 138mm per month. The wettest month is August, averaging 209mm of rainfall. June and May also tend to see above-average precipitation. The driest month is November, with just 68mm. That's 141mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Jasper is relatively calm, with an average annual wind speed of 3km/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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently spring in Jasper, which began on March 20, 2026. Jasper 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 34°C, while the coldest stretch bottoms out in January near 7°C. Summer is next, beginning on June 21, 2026 — 1 days from now.

The best time to visit Jasper is during November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 68mm per month. By contrast, July can be uncomfortably hot with highs reaching 34°C, while January is the coldest period with lows dropping to 7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Jasper 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. 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.