Home › Cities › Canada › Ontario › Belleville
Belleville, Ontario climate
Dfa Hot-summer humid continental
Belleville has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 27°C, while the coldest is January averaging around −11°C at night. Precipitation is fairly even year-round, totalling about 914 mm. Winters bring significant snowfall (137 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)Belleville climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −1 | 4 | 12 | 19 | 24 | 27 | 26 | 22 | 14 | 7 | 1 |
| Avg temp (°C) | −6 | −5 | 0 | 7 | 14 | 19 | 22 | 21 | 17 | 10 | 4 | −2 |
| Avg low (°C) | −11 | −10 | −5 | 2 | 9 | 14 | 17 | 16 | 12 | 6 | 0 | −6 |
| Precipitation (mm) | 74 | 53 | 62 | 83 | 78 | 86 | 71 | 74 | 88 | 86 | 86 | 73 |
| Snowfall (cm) | 36 | 30 | 22 | 6 | 0 | — | — | 0 | — | 1 | 11 | 31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −1 | 4 | 12 | 19 | 24 |
| Avg temp (°C) | −6 | −5 | 0 | 7 | 14 | 19 |
| Avg low (°C) | −11 | −10 | −5 | 2 | 9 | 14 |
| Precipitation (mm) | 74 | 53 | 62 | 83 | 78 | 86 |
| Snowfall (cm) | 36 | 30 | 22 | 6 | 0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 22 | 14 | 7 | 1 |
| Avg temp (°C) | 22 | 21 | 17 | 10 | 4 | −2 |
| Avg low (°C) | 17 | 16 | 12 | 6 | 0 | −6 |
| Precipitation (mm) | 71 | 74 | 88 | 86 | 86 | 73 |
| Snowfall (cm) | — | 0 | — | 1 | 11 | 31 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 66 | 65 | 65 | 64 | 61 | 55 | 55 | 55 | 67 | 71 | 74 |
| Relative humidity (%) | 89 | 87 | 82 | 79 | 79 | 77 | 73 | 72 | 73 | 77 | 81 | 86 |
| Wind speed (m/s) | 3.9 | 3.8 | 3.2 | 2.5 | 1.8 | 1.7 | 2.0 | 2.2 | 2.4 | 2.9 | 3.2 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 66 | 65 | 65 | 64 | 61 |
| Relative humidity (%) | 89 | 87 | 82 | 79 | 79 | 77 |
| Wind speed (m/s) | 3.9 | 3.8 | 3.2 | 2.5 | 1.8 | 1.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 55 | 55 | 67 | 71 | 74 |
| Relative humidity (%) | 73 | 72 | 73 | 77 | 81 | 86 |
| Wind speed (m/s) | 2.0 | 2.2 | 2.4 | 2.9 | 3.2 | 3.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Belleville, a weather station, about 2 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.