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Grande Prairie, Alberta climate
Dfb Warm-summer humid continental
Grande Prairie has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 73°F, while the coldest is January averaging around −3°F at night. Precipitation totals about 17 inches a year and is strongly seasonal — July alone averages 2.9 inches while February barely receives 0.62 inches. Snowfall is heavy (65 inches of snow per year on average). At latitude 55°N, day length swings from 6.9 hours in midwinter to 17.1 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 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)Grande Prairie climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 17 | 24 | 32 | 49 | 62 | 69 | 73 | 72 | 63 | 48 | 30 | 20 |
| Avg temp (°F) | 7 | 14 | 22 | 39 | 50 | 58 | 61 | 59 | 51 | 38 | 21 | 11 |
| Avg low (°F) | −3 | 4 | 12 | 28 | 38 | 46 | 50 | 47 | 39 | 28 | 12 | 1 |
| Precipitation (in) | 1.1 | 0.6 | 0.7 | 0.9 | 1.7 | 2.7 | 2.9 | 2.0 | 1.5 | 1.2 | 1.0 | 0.8 |
| Snowfall (in) | 14.0 | 8.2 | 9.2 | 4.8 | 1.9 | 0.1 | — | — | 0.7 | 5.8 | 10.3 | 9.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 17 | 24 | 32 | 49 | 62 | 69 |
| Avg temp (°F) | 7 | 14 | 22 | 39 | 50 | 58 |
| Avg low (°F) | −3 | 4 | 12 | 28 | 38 | 46 |
| Precipitation (in) | 1.1 | 0.6 | 0.7 | 0.9 | 1.7 | 2.7 |
| Snowfall (in) | 14.0 | 8.2 | 9.2 | 4.8 | 1.9 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 73 | 72 | 63 | 48 | 30 | 20 |
| Avg temp (°F) | 61 | 59 | 51 | 38 | 21 | 11 |
| Avg low (°F) | 50 | 47 | 39 | 28 | 12 | 1 |
| Precipitation (in) | 2.9 | 2.0 | 1.5 | 1.2 | 1.0 | 0.8 |
| Snowfall (in) | — | — | 0.7 | 5.8 | 10.3 | 9.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 69 | 68 | 66 | 66 | 66 | 62 | 62 | 66 | 70 | 73 | 72 |
| Relative humidity (%) | 95 | 92 | 84 | 73 | 68 | 70 | 70 | 69 | 72 | 79 | 89 | 94 |
| Wind speed (mph) | 2.2 | 2.3 | 2.4 | 2.4 | 2.2 | 2.0 | 1.9 | 1.8 | 2.0 | 2.0 | 2.0 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 69 | 68 | 66 | 66 | 66 |
| Relative humidity (%) | 95 | 92 | 84 | 73 | 68 | 70 |
| Wind speed (mph) | 2.2 | 2.3 | 2.4 | 2.4 | 2.2 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 62 | 66 | 70 | 73 | 72 |
| Relative humidity (%) | 70 | 69 | 72 | 79 | 89 | 94 |
| Wind speed (mph) | 1.9 | 1.8 | 2.0 | 2.0 | 2.0 | 2.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Grande Prairie A, a weather station, about 6 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.