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 81°F, while the coldest is January averaging around 12°F at night. Precipitation is fairly even year-round, totalling about 36 inches. Winters bring significant snowfall (54 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)Belleville climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 29 | 31 | 40 | 53 | 67 | 76 | 81 | 79 | 72 | 58 | 45 | 35 |
| Avg temp (°F) | 21 | 22 | 31 | 44 | 57 | 67 | 72 | 70 | 63 | 50 | 38 | 28 |
| Avg low (°F) | 12 | 14 | 23 | 36 | 48 | 58 | 63 | 61 | 54 | 42 | 31 | 21 |
| Precipitation (in) | 2.9 | 2.1 | 2.4 | 3.3 | 3.1 | 3.4 | 2.8 | 2.9 | 3.5 | 3.4 | 3.4 | 2.9 |
| Snowfall (in) | 14.2 | 11.8 | 8.7 | 2.3 | 0.0 | — | — | 0.0 | — | 0.2 | 4.4 | 12.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 29 | 31 | 40 | 53 | 67 | 76 |
| Avg temp (°F) | 21 | 22 | 31 | 44 | 57 | 67 |
| Avg low (°F) | 12 | 14 | 23 | 36 | 48 | 58 |
| Precipitation (in) | 2.9 | 2.1 | 2.4 | 3.3 | 3.1 | 3.4 |
| Snowfall (in) | 14.2 | 11.8 | 8.7 | 2.3 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 79 | 72 | 58 | 45 | 35 |
| Avg temp (°F) | 72 | 70 | 63 | 50 | 38 | 28 |
| Avg low (°F) | 63 | 61 | 54 | 42 | 31 | 21 |
| Precipitation (in) | 2.8 | 2.9 | 3.5 | 3.4 | 3.4 | 2.9 |
| Snowfall (in) | — | 0.0 | — | 0.2 | 4.4 | 12.2 |
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 (mph) | 8.8 | 8.5 | 7.1 | 5.7 | 4.0 | 3.9 | 4.5 | 4.8 | 5.4 | 6.4 | 7.1 | 8.0 |
| 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 (mph) | 8.8 | 8.5 | 7.1 | 5.7 | 4.0 | 3.9 |
| 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 (mph) | 4.5 | 4.8 | 5.4 | 6.4 | 7.1 | 8.0 |
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.