Jasper (AB) Temperature by Month

The average annual maximum temperature in Jasper, Alberta, Canada is 4°C (39°F), with daytime highs ranging from -10°C (14°F) in December to 18°C (64°F) in July. This page covers monthly averages, day-night differences, and how Jasper compares to cities worldwide.

The weather in Jasper experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 4°C (39°F) in July to -17°C (1°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Jasper by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 252 hours of sunshine.

The chart below shows the average temperature throughout the year:

Jasper's average annual maximum temperature is 4°C (39°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Jasper's weather, including monthly rainfall, sunshine hours, and humidity, visit our Jasper climate page.