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Jasper, Alberta climate
Dfb Warm-summer humid continental
Jasper has a seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 75°F, while the coldest is December averaging around 6°F at night. Around 14 inches of precipitation falls each year, peaking in June (2.2 inches) and easing off in February (0.5 inches). At latitude 53°N, day length swings from 7.3 hours in midwinter to 16.6 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Jasper climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 27 | 33 | 40 | 51 | 62 | 68 | 75 | 74 | 64 | 50 | 35 | 26 |
| Avg temp (°F) | 16 | 21 | 28 | 38 | 47 | 54 | 60 | 58 | 50 | 39 | 26 | 16 |
| Avg low (°F) | 6 | 9 | 17 | 25 | 33 | 41 | 45 | 43 | 36 | 28 | 17 | 6 |
| Precipitation (in) | 0.9 | 0.5 | 0.8 | 0.7 | 1.3 | 2.2 | 2.1 | 1.8 | 1.3 | 1.1 | 1.1 | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 27 | 33 | 40 | 51 | 62 | 68 |
| Avg temp (°F) | 16 | 21 | 28 | 38 | 47 | 54 |
| Avg low (°F) | 6 | 9 | 17 | 25 | 33 | 41 |
| Precipitation (in) | 0.9 | 0.5 | 0.8 | 0.7 | 1.3 | 2.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 74 | 64 | 50 | 35 | 26 |
| Avg temp (°F) | 60 | 58 | 50 | 39 | 26 | 16 |
| Avg low (°F) | 45 | 43 | 36 | 28 | 17 | 6 |
| Precipitation (in) | 2.1 | 1.8 | 1.3 | 1.1 | 1.1 | 0.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 68 | 74 | 73 | 73 | 78 | 67 | 64 | 67 | 75 | 76 | 70 |
| Relative humidity (%) | 94 | 93 | 90 | 83 | 73 | 73 | 73 | 74 | 77 | 82 | 91 | 94 |
| Wind speed (mph) | 1.1 | 1.1 | 1.1 | 0.9 | 0.8 | 0.5 | 0.4 | 0.5 | 0.4 | 0.4 | 0.7 | 1.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 68 | 74 | 73 | 73 | 78 |
| Relative humidity (%) | 94 | 93 | 90 | 83 | 73 | 73 |
| Wind speed (mph) | 1.1 | 1.1 | 1.1 | 0.9 | 0.8 | 0.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 64 | 67 | 75 | 76 | 70 |
| Relative humidity (%) | 73 | 74 | 77 | 82 | 91 | 94 |
| Wind speed (mph) | 0.4 | 0.5 | 0.4 | 0.4 | 0.7 | 1.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Jasper Warden, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.