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Chestermere, Alberta climate
Dwb Monsoon-influenced warm-summer humid continental
Chestermere has a seasonal cold-temperate climate (Monsoon-influenced warm-summer humid continental, Köppen Dwb). The hottest month is July with an average daily high near 23°C, while the coldest is January averaging around −14°C at night. Precipitation totals about 434 mm a year and is strongly seasonal — June alone averages 107 mm while January barely receives 10 mm. Winters bring significant snowfall (140 cm of snow per year on average). At latitude 51°N, day length swings from 7.7 hours in midwinter to 16.3 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)Chestermere climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | 1 | 4 | 11 | 16 | 19 | 23 | 23 | 18 | 11 | 4 | 0 |
| Avg temp (°C) | −8 | −5 | −2 | 4 | 9 | 13 | 17 | 16 | 11 | 5 | −2 | −6 |
| Avg low (°C) | −14 | −11 | −8 | −2 | 3 | 7 | 10 | 9 | 4 | −1 | −8 | −12 |
| Precipitation (mm) | 10 | 11 | 18 | 32 | 58 | 107 | 63 | 57 | 35 | 17 | 14 | 11 |
| Snowfall (cm) | 17 | 16 | 24 | 24 | 11 | 0 | — | 0 | 2 | 11 | 18 | 16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | 1 | 4 | 11 | 16 | 19 |
| Avg temp (°C) | −8 | −5 | −2 | 4 | 9 | 13 |
| Avg low (°C) | −14 | −11 | −8 | −2 | 3 | 7 |
| Precipitation (mm) | 10 | 11 | 18 | 32 | 58 | 107 |
| Snowfall (cm) | 17 | 16 | 24 | 24 | 11 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 23 | 18 | 11 | 4 | 0 |
| Avg temp (°C) | 17 | 16 | 11 | 5 | −2 | −6 |
| Avg low (°C) | 10 | 9 | 4 | −1 | −8 | −12 |
| Precipitation (mm) | 63 | 57 | 35 | 17 | 14 | 11 |
| Snowfall (cm) | — | 0 | 2 | 11 | 18 | 16 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 67 | 68 | 71 | 71 | 70 | 58 | 58 | 61 | 67 | 68 | 65 |
| Relative humidity (%) | 85 | 79 | 70 | 63 | 61 | 64 | 62 | 61 | 64 | 70 | 77 | 82 |
| Wind speed (km/h) | 9.1 | 9.1 | 9.9 | 9.7 | 8.8 | 7.8 | 6.9 | 6.7 | 7.3 | 8.2 | 8.5 | 8.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 67 | 68 | 71 | 71 | 70 |
| Relative humidity (%) | 85 | 79 | 70 | 63 | 61 | 64 |
| Wind speed (km/h) | 9.1 | 9.1 | 9.9 | 9.7 | 8.8 | 7.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 58 | 61 | 67 | 68 | 65 |
| Relative humidity (%) | 62 | 61 | 64 | 70 | 77 | 82 |
| Wind speed (km/h) | 6.9 | 6.7 | 7.3 | 8.2 | 8.5 | 8.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Calgary Int'l A, a weather station, about 16 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.