Home › Cities › Canada › Ontario › Kingston
Kingston, Ontario climate
Dfb Warm-summer humid continental
Kingston has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 27°C, while the coldest is January averaging around −12°C at night. Precipitation is fairly even year-round, totalling about 983 mm. Snowfall is heavy (157 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)Kingston climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −2 | 4 | 12 | 19 | 24 | 27 | 26 | 21 | 14 | 7 | 0 |
| Avg temp (°C) | −8 | −6 | −1 | 6 | 13 | 18 | 21 | 20 | 16 | 9 | 3 | −4 |
| Avg low (°C) | −12 | −11 | −6 | 1 | 7 | 12 | 15 | 14 | 10 | 4 | −1 | −7 |
| Precipitation (mm) | 82 | 64 | 63 | 87 | 84 | 93 | 71 | 83 | 94 | 94 | 89 | 79 |
| Snowfall (cm) | 43 | 39 | 24 | 6 | 0 | — | — | — | — | 1 | 12 | 32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −3 | −2 | 4 | 12 | 19 | 24 |
| Avg temp (°C) | −8 | −6 | −1 | 6 | 13 | 18 |
| Avg low (°C) | −12 | −11 | −6 | 1 | 7 | 12 |
| Precipitation (mm) | 82 | 64 | 63 | 87 | 84 | 93 |
| Snowfall (cm) | 43 | 39 | 24 | 6 | 0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 21 | 14 | 7 | 0 |
| Avg temp (°C) | 21 | 20 | 16 | 9 | 3 | −4 |
| Avg low (°C) | 15 | 14 | 10 | 4 | −1 | −7 |
| Precipitation (mm) | 71 | 83 | 94 | 94 | 89 | 79 |
| Snowfall (cm) | — | — | — | 1 | 12 | 32 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 68 | 65 | 66 | 64 | 61 | 55 | 55 | 56 | 67 | 71 | 74 |
| Relative humidity (%) | 90 | 89 | 81 | 75 | 73 | 73 | 68 | 67 | 70 | 76 | 81 | 87 |
| Wind speed (km/h) | 3.8 | 5.0 | 3.6 | 1.3 | 0.3 | 0.3 | 0.2 | 0.3 | 0.3 | 0.3 | 0.4 | 1.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 68 | 65 | 66 | 64 | 61 |
| Relative humidity (%) | 90 | 89 | 81 | 75 | 73 | 73 |
| Wind speed (km/h) | 3.8 | 5.0 | 3.6 | 1.3 | 0.3 | 0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 55 | 56 | 67 | 71 | 74 |
| Relative humidity (%) | 68 | 67 | 70 | 76 | 81 | 87 |
| Wind speed (km/h) | 0.2 | 0.3 | 0.3 | 0.3 | 0.4 | 1.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Hartington Ihd, a weather station, about 28 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.