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Salaberry-de-Valleyfield, Quebec climate
Dfb Warm-summer humid continental
Salaberry-de-Valleyfield has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 79°F, while the coldest is January averaging around 6°F at night. Precipitation is fairly even year-round, totalling about 40 inches. Snowfall is heavy (73 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)Salaberry-de-Valleyfield climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 22 | 25 | 36 | 51 | 67 | 75 | 79 | 77 | 70 | 56 | 42 | 30 |
| Avg temp (°F) | 14 | 17 | 28 | 43 | 56 | 65 | 69 | 67 | 60 | 47 | 36 | 23 |
| Avg low (°F) | 6 | 8 | 20 | 34 | 46 | 55 | 59 | 57 | 50 | 39 | 29 | 16 |
| Precipitation (in) | 2.5 | 2.5 | 2.5 | 3.4 | 3.6 | 4.0 | 4.1 | 3.6 | 3.7 | 4.1 | 2.9 | 2.8 |
| Snowfall (in) | 19.2 | 17.5 | 12.2 | 2.5 | — | — | — | — | — | 0.4 | 4.5 | 17.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 22 | 25 | 36 | 51 | 67 | 75 |
| Avg temp (°F) | 14 | 17 | 28 | 43 | 56 | 65 |
| Avg low (°F) | 6 | 8 | 20 | 34 | 46 | 55 |
| Precipitation (in) | 2.5 | 2.5 | 2.5 | 3.4 | 3.6 | 4.0 |
| Snowfall (in) | 19.2 | 17.5 | 12.2 | 2.5 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 77 | 70 | 56 | 42 | 30 |
| Avg temp (°F) | 69 | 67 | 60 | 47 | 36 | 23 |
| Avg low (°F) | 59 | 57 | 50 | 39 | 29 | 16 |
| Precipitation (in) | 4.1 | 3.6 | 3.7 | 4.1 | 2.9 | 2.8 |
| Snowfall (in) | — | — | — | 0.4 | 4.5 | 17.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 64 | 63 | 66 | 66 | 63 | 58 | 58 | 58 | 69 | 72 | 73 |
| Relative humidity (%) | 95 | 94 | 90 | 82 | 79 | 79 | 78 | 75 | 76 | 81 | 86 | 93 |
| Wind speed (mph) | 4.2 | 5.0 | 4.4 | 3.3 | 2.3 | 2.0 | 2.0 | 1.9 | 1.9 | 2.1 | 2.4 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 64 | 63 | 66 | 66 | 63 |
| Relative humidity (%) | 95 | 94 | 90 | 82 | 79 | 79 |
| Wind speed (mph) | 4.2 | 5.0 | 4.4 | 3.3 | 2.3 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 58 | 58 | 69 | 72 | 73 |
| Relative humidity (%) | 78 | 75 | 76 | 81 | 86 | 93 |
| Wind speed (mph) | 2.0 | 1.9 | 1.9 | 2.1 | 2.4 | 3.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Coteau DU Lac, a weather station, about 8 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.