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 80°F, while the coldest is January averaging around 10°F at night. Precipitation is fairly even year-round, totalling about 39 inches. Snowfall is heavy (62 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)Kingston climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 29 | 39 | 53 | 66 | 75 | 80 | 78 | 70 | 56 | 44 | 32 |
| Avg temp (°F) | 18 | 21 | 30 | 43 | 56 | 64 | 70 | 68 | 60 | 48 | 37 | 26 |
| Avg low (°F) | 10 | 12 | 21 | 34 | 45 | 54 | 59 | 58 | 50 | 40 | 30 | 19 |
| Precipitation (in) | 3.2 | 2.5 | 2.5 | 3.4 | 3.3 | 3.7 | 2.8 | 3.3 | 3.7 | 3.7 | 3.5 | 3.1 |
| Snowfall (in) | 17.0 | 15.2 | 9.4 | 2.3 | 0.0 | — | — | — | — | 0.5 | 4.6 | 12.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 29 | 39 | 53 | 66 | 75 |
| Avg temp (°F) | 18 | 21 | 30 | 43 | 56 | 64 |
| Avg low (°F) | 10 | 12 | 21 | 34 | 45 | 54 |
| Precipitation (in) | 3.2 | 2.5 | 2.5 | 3.4 | 3.3 | 3.7 |
| Snowfall (in) | 17.0 | 15.2 | 9.4 | 2.3 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 78 | 70 | 56 | 44 | 32 |
| Avg temp (°F) | 70 | 68 | 60 | 48 | 37 | 26 |
| Avg low (°F) | 59 | 58 | 50 | 40 | 30 | 19 |
| Precipitation (in) | 2.8 | 3.3 | 3.7 | 3.7 | 3.5 | 3.1 |
| Snowfall (in) | — | — | — | 0.5 | 4.6 | 12.6 |
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 (mph) | 2.4 | 3.1 | 2.2 | 0.8 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 1.1 |
| 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 (mph) | 2.4 | 3.1 | 2.2 | 0.8 | 0.2 | 0.2 |
| 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 (mph) | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 1.1 |
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.