Home › Cities › Canada › Quebec › Saint-Jean-sur-Richelieu
Saint-Jean-sur-Richelieu, Quebec climate
Dfb Warm-summer humid continental
Saint-Jean-sur-Richelieu has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around 7°F at night. Precipitation is fairly even year-round, totalling about 39 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 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)Saint-Jean-sur-Richelieu climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 24 | 27 | 37 | 52 | 67 | 76 | 80 | 77 | 70 | 57 | 43 | 31 |
| Avg temp (°F) | 16 | 18 | 28 | 43 | 57 | 66 | 70 | 67 | 60 | 48 | 36 | 24 |
| Avg low (°F) | 7 | 9 | 20 | 33 | 46 | 56 | 60 | 57 | 49 | 39 | 29 | 16 |
| Precipitation (in) | 2.7 | 2.4 | 2.7 | 3.4 | 3.3 | 3.4 | 4.0 | 3.6 | 3.3 | 4.0 | 2.9 | 3.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 24 | 27 | 37 | 52 | 67 | 76 |
| Avg temp (°F) | 16 | 18 | 28 | 43 | 57 | 66 |
| Avg low (°F) | 7 | 9 | 20 | 33 | 46 | 56 |
| Precipitation (in) | 2.7 | 2.4 | 2.7 | 3.4 | 3.3 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 77 | 70 | 57 | 43 | 31 |
| Avg temp (°F) | 70 | 67 | 60 | 48 | 36 | 24 |
| Avg low (°F) | 60 | 57 | 49 | 39 | 29 | 16 |
| Precipitation (in) | 4.0 | 3.6 | 3.3 | 4.0 | 2.9 | 3.3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 66 | 65 | 67 | 68 | 64 | 61 | 59 | 59 | 69 | 72 | 73 |
| Relative humidity (%) | 92 | 90 | 87 | 81 | 80 | 80 | 80 | 78 | 78 | 82 | 86 | 91 |
| Wind speed (mph) | 7.2 | 7.6 | 7.5 | 6.9 | 5.9 | 5.2 | 4.9 | 4.6 | 5.1 | 5.8 | 6.1 | 6.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 66 | 65 | 67 | 68 | 64 |
| Relative humidity (%) | 92 | 90 | 87 | 81 | 80 | 80 |
| Wind speed (mph) | 7.2 | 7.6 | 7.5 | 6.9 | 5.9 | 5.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 59 | 59 | 69 | 72 | 73 |
| Relative humidity (%) | 80 | 78 | 78 | 82 | 86 | 91 |
| Wind speed (mph) | 4.9 | 4.6 | 5.1 | 5.8 | 6.1 | 6.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at L'acadie, a weather station, about 7 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.