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Toronto, Ontario climate
Dfb Warm-summer humid continental
Toronto has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 82°F, while the coldest is January averaging around 16°F at night. Precipitation is fairly even year-round, totalling about 35 inches. Winters bring significant snowfall (51 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)Toronto climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 32 | 41 | 54 | 67 | 77 | 82 | 80 | 73 | 59 | 46 | 35 |
| Avg temp (°F) | 23 | 25 | 33 | 44 | 57 | 66 | 71 | 70 | 63 | 50 | 39 | 29 |
| Avg low (°F) | 16 | 17 | 25 | 35 | 46 | 56 | 61 | 60 | 53 | 42 | 32 | 23 |
| Precipitation (in) | 2.6 | 2.3 | 2.1 | 3.2 | 3.3 | 3.9 | 3.4 | 3.0 | 3.1 | 2.9 | 2.7 | 2.6 |
| Snowfall (in) | 13.2 | 12.9 | 7.4 | 2.0 | 0.0 | — | — | — | — | 0.1 | 3.9 | 11.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 32 | 41 | 54 | 67 | 77 |
| Avg temp (°F) | 23 | 25 | 33 | 44 | 57 | 66 |
| Avg low (°F) | 16 | 17 | 25 | 35 | 46 | 56 |
| Precipitation (in) | 2.6 | 2.3 | 2.1 | 3.2 | 3.3 | 3.9 |
| Snowfall (in) | 13.2 | 12.9 | 7.4 | 2.0 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 80 | 73 | 59 | 46 | 35 |
| Avg temp (°F) | 71 | 70 | 63 | 50 | 39 | 29 |
| Avg low (°F) | 61 | 60 | 53 | 42 | 32 | 23 |
| Precipitation (in) | 3.4 | 3.0 | 3.1 | 2.9 | 2.7 | 2.6 |
| Snowfall (in) | — | — | — | 0.1 | 3.9 | 11.6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 90 | 88 | 82 | 77 | 74 | 70 | 66 | 67 | 71 | 78 | 84 | 89 |
| Wind speed (mph) | 9.4 | 9.5 | 8.9 | 7.9 | 6.4 | 5.9 | 5.7 | 5.6 | 6.1 | 7.1 | 7.7 | 8.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 |
| Relative humidity (%) | 90 | 88 | 82 | 77 | 74 | 70 |
| Wind speed (mph) | 9.4 | 9.5 | 8.9 | 7.9 | 6.4 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 66 | 67 | 71 | 78 | 84 | 89 |
| Wind speed (mph) | 5.7 | 5.6 | 6.1 | 7.1 | 7.7 | 8.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Toronto North York, a weather station, about 10 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.