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Thetford-Mines, Quebec climate
Dfb Warm-summer humid continental
Thetford-Mines has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −15°C at night. Precipitation is fairly even year-round, totalling about 1313 mm. Snowfall is heavy (349 cm of snow per year on average).
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)Thetford-Mines climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −7 | −5 | 1 | 8 | 17 | 22 | 24 | 23 | 18 | 11 | 4 | −3 |
| Avg temp (°C) | −11 | −10 | −4 | 4 | 11 | 17 | 19 | 18 | 14 | 7 | 1 | −6 |
| Avg low (°C) | −15 | −14 | −8 | −1 | 6 | 11 | 14 | 13 | 9 | 3 | −3 | −10 |
| Precipitation (mm) | 96 | 92 | 93 | 96 | 110 | 131 | 138 | 123 | 111 | 122 | 90 | 111 |
| Snowfall (cm) | 72 | 78 | 66 | 23 | 2 | — | — | — | 0 | 6 | 28 | 75 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −7 | −5 | 1 | 8 | 17 | 22 |
| Avg temp (°C) | −11 | −10 | −4 | 4 | 11 | 17 |
| Avg low (°C) | −15 | −14 | −8 | −1 | 6 | 11 |
| Precipitation (mm) | 96 | 92 | 93 | 96 | 110 | 131 |
| Snowfall (cm) | 72 | 78 | 66 | 23 | 2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 23 | 18 | 11 | 4 | −3 |
| Avg temp (°C) | 19 | 18 | 14 | 7 | 1 | −6 |
| Avg low (°C) | 14 | 13 | 9 | 3 | −3 | −10 |
| Precipitation (mm) | 138 | 123 | 111 | 122 | 90 | 111 |
| Snowfall (cm) | — | — | 0 | 6 | 28 | 75 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 63 | 67 | 70 | 67 | 64 | 62 | 62 | 72 | 74 | 71 |
| Relative humidity (%) | 97 | 97 | 94 | 84 | 81 | 82 | 84 | 84 | 83 | 86 | 89 | 95 |
| Wind speed (m/s) | 1.1 | 1.4 | 1.2 | 0.6 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 65 | 63 | 67 | 70 | 67 |
| Relative humidity (%) | 97 | 97 | 94 | 84 | 81 | 82 |
| Wind speed (m/s) | 1.1 | 1.4 | 1.2 | 0.6 | 0.2 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 62 | 62 | 72 | 74 | 71 |
| Relative humidity (%) | 84 | 84 | 83 | 86 | 89 | 95 |
| Wind speed (m/s) | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Thetford Mines, a weather station, about 4 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.