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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 75°F, while the coldest is January averaging around 5°F at night. Precipitation is fairly even year-round, totalling about 52 inches. Snowfall is heavy (138 inches 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 (°F) | 20 | 22 | 33 | 47 | 62 | 71 | 75 | 73 | 65 | 51 | 39 | 27 |
| Avg temp (°F) | 12 | 14 | 25 | 39 | 53 | 62 | 66 | 64 | 57 | 44 | 33 | 20 |
| Avg low (°F) | 5 | 7 | 18 | 31 | 43 | 52 | 57 | 56 | 48 | 37 | 27 | 14 |
| Precipitation (in) | 3.8 | 3.6 | 3.7 | 3.8 | 4.3 | 5.2 | 5.4 | 4.9 | 4.4 | 4.8 | 3.5 | 4.4 |
| Snowfall (in) | 28.3 | 30.6 | 25.9 | 8.9 | 0.9 | — | — | — | 0.0 | 2.3 | 11.1 | 29.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 20 | 22 | 33 | 47 | 62 | 71 |
| Avg temp (°F) | 12 | 14 | 25 | 39 | 53 | 62 |
| Avg low (°F) | 5 | 7 | 18 | 31 | 43 | 52 |
| Precipitation (in) | 3.8 | 3.6 | 3.7 | 3.8 | 4.3 | 5.2 |
| Snowfall (in) | 28.3 | 30.6 | 25.9 | 8.9 | 0.9 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 73 | 65 | 51 | 39 | 27 |
| Avg temp (°F) | 66 | 64 | 57 | 44 | 33 | 20 |
| Avg low (°F) | 57 | 56 | 48 | 37 | 27 | 14 |
| Precipitation (in) | 5.4 | 4.9 | 4.4 | 4.8 | 3.5 | 4.4 |
| Snowfall (in) | — | — | 0.0 | 2.3 | 11.1 | 29.7 |
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 (mph) | 2.4 | 3.2 | 2.6 | 1.3 | 0.3 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.5 | 1.3 |
| 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 (mph) | 2.4 | 3.2 | 2.6 | 1.3 | 0.3 | 0.2 |
| 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 (mph) | 0.2 | 0.3 | 0.3 | 0.3 | 0.5 | 1.3 |
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.