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Caledon, Ontario climate
Dfb Warm-summer humid continental
Caledon has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 77°F, while the coldest is January averaging around 11°F at night. Precipitation is fairly even year-round, totalling about 36 inches. Snowfall is heavy (68 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)Caledon climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 27 | 38 | 51 | 65 | 74 | 77 | 76 | 69 | 55 | 43 | 32 |
| Avg temp (°F) | 19 | 19 | 28 | 41 | 53 | 63 | 67 | 65 | 58 | 47 | 36 | 26 |
| Avg low (°F) | 11 | 11 | 19 | 31 | 42 | 52 | 56 | 54 | 47 | 38 | 29 | 19 |
| Precipitation (in) | 3.0 | 2.5 | 2.3 | 2.9 | 3.4 | 3.4 | 3.3 | 2.8 | 3.1 | 3.1 | 3.0 | 2.8 |
| Snowfall (in) | 17.9 | 16.9 | 8.8 | 2.3 | — | — | — | — | — | 0.6 | 5.3 | 15.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 27 | 38 | 51 | 65 | 74 |
| Avg temp (°F) | 19 | 19 | 28 | 41 | 53 | 63 |
| Avg low (°F) | 11 | 11 | 19 | 31 | 42 | 52 |
| Precipitation (in) | 3.0 | 2.5 | 2.3 | 2.9 | 3.4 | 3.4 |
| Snowfall (in) | 17.9 | 16.9 | 8.8 | 2.3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 76 | 69 | 55 | 43 | 32 |
| Avg temp (°F) | 67 | 65 | 58 | 47 | 36 | 26 |
| Avg low (°F) | 56 | 54 | 47 | 38 | 29 | 19 |
| Precipitation (in) | 3.3 | 2.8 | 3.1 | 3.1 | 3.0 | 2.8 |
| Snowfall (in) | — | — | — | 0.6 | 5.3 | 15.8 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 69 | 68 | 67 | 64 | 59 | 54 | 54 | 56 | 68 | 74 | 76 |
| Relative humidity (%) | 92 | 90 | 84 | 78 | 75 | 71 | 67 | 68 | 72 | 79 | 86 | 91 |
| Wind speed (mph) | 9.0 | 9.4 | 8.5 | 7.4 | 5.8 | 5.2 | 5.0 | 4.8 | 5.2 | 6.1 | 6.8 | 7.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 69 | 68 | 67 | 64 | 59 |
| Relative humidity (%) | 92 | 90 | 84 | 78 | 75 | 71 |
| Wind speed (mph) | 9.0 | 9.4 | 8.5 | 7.4 | 5.8 | 5.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 54 | 56 | 68 | 74 | 76 |
| Relative humidity (%) | 67 | 68 | 72 | 79 | 86 | 91 |
| Wind speed (mph) | 5.0 | 4.8 | 5.2 | 6.1 | 6.8 | 7.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Orangeville Moe, 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.