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Brantford, Ontario climate
Dfb Warm-summer humid continental
Brantford has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 79°F, while the coldest is January averaging around 15°F at night. Precipitation is fairly even year-round, totalling about 36 inches. Winters bring significant snowfall (55 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)Brantford climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 28 | 30 | 39 | 53 | 66 | 75 | 79 | 78 | 71 | 57 | 44 | 33 |
| Avg temp (°F) | 21 | 22 | 31 | 43 | 55 | 65 | 69 | 67 | 60 | 48 | 37 | 27 |
| Avg low (°F) | 15 | 15 | 23 | 34 | 45 | 55 | 59 | 57 | 50 | 40 | 30 | 22 |
| Precipitation (in) | 2.9 | 2.2 | 2.3 | 3.2 | 3.1 | 3.2 | 3.8 | 3.1 | 3.1 | 3.3 | 3.1 | 2.6 |
| Snowfall (in) | 15.5 | 11.2 | 7.8 | 2.3 | 0.1 | — | — | — | — | 0.5 | 5.7 | 11.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 28 | 30 | 39 | 53 | 66 | 75 |
| Avg temp (°F) | 21 | 22 | 31 | 43 | 55 | 65 |
| Avg low (°F) | 15 | 15 | 23 | 34 | 45 | 55 |
| Precipitation (in) | 2.9 | 2.2 | 2.3 | 3.2 | 3.1 | 3.2 |
| Snowfall (in) | 15.5 | 11.2 | 7.8 | 2.3 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 78 | 71 | 57 | 44 | 33 |
| Avg temp (°F) | 69 | 67 | 60 | 48 | 37 | 27 |
| Avg low (°F) | 59 | 57 | 50 | 40 | 30 | 22 |
| Precipitation (in) | 3.8 | 3.1 | 3.1 | 3.3 | 3.1 | 2.6 |
| Snowfall (in) | — | — | — | 0.5 | 5.7 | 11.5 |
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 (%) | 90 | 89 | 83 | 77 | 75 | 73 | 69 | 70 | 72 | 79 | 85 | 89 |
| Wind speed (mph) | 10.2 | 10.3 | 9.5 | 8.7 | 7.1 | 6.2 | 5.9 | 5.6 | 6.2 | 7.4 | 8.1 | 8.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 69 | 68 | 67 | 64 | 59 |
| Relative humidity (%) | 90 | 89 | 83 | 77 | 75 | 73 |
| Wind speed (mph) | 10.2 | 10.3 | 9.5 | 8.7 | 7.1 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 54 | 56 | 68 | 74 | 76 |
| Relative humidity (%) | 69 | 70 | 72 | 79 | 85 | 89 |
| Wind speed (mph) | 5.9 | 5.6 | 6.2 | 7.4 | 8.1 | 8.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Roseville, a weather station, about 29 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.