Home › Cities › Canada › Ontario › East Gwillimbury
East Gwillimbury, Ontario climate
Dfb Warm-summer humid continental
East Gwillimbury 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 15°F at night. Precipitation is fairly even year-round, totalling about 36 inches. Snowfall is heavy (61 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)East Gwillimbury climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 28 | 31 | 41 | 54 | 67 | 76 | 80 | 79 | 71 | 57 | 45 | 34 |
| Avg temp (°F) | 22 | 23 | 33 | 45 | 57 | 66 | 71 | 69 | 61 | 49 | 38 | 28 |
| Avg low (°F) | 15 | 16 | 24 | 35 | 46 | 57 | 61 | 60 | 52 | 41 | 31 | 22 |
| Precipitation (in) | 2.7 | 2.3 | 2.3 | 3.1 | 3.3 | 3.4 | 3.8 | 3.0 | 3.4 | 2.7 | 3.2 | 2.8 |
| Snowfall (in) | 15.1 | 13.7 | 9.3 | 2.9 | 0.1 | — | — | — | — | 0.5 | 5.5 | 14.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 28 | 31 | 41 | 54 | 67 | 76 |
| Avg temp (°F) | 22 | 23 | 33 | 45 | 57 | 66 |
| Avg low (°F) | 15 | 16 | 24 | 35 | 46 | 57 |
| Precipitation (in) | 2.7 | 2.3 | 2.3 | 3.1 | 3.3 | 3.4 |
| Snowfall (in) | 15.1 | 13.7 | 9.3 | 2.9 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 79 | 71 | 57 | 45 | 34 |
| Avg temp (°F) | 71 | 69 | 61 | 49 | 38 | 28 |
| Avg low (°F) | 61 | 60 | 52 | 41 | 31 | 22 |
| Precipitation (in) | 3.8 | 3.0 | 3.4 | 2.7 | 3.2 | 2.8 |
| Snowfall (in) | — | — | — | 0.5 | 5.5 | 14.2 |
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 23 years of daily observations at Richmond Hill, a weather station, about 25 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.