The climate in Brantford is typical of southern Ontario. Temperature is moderated by the influence of the nearby Great Lakes, with August being the warmest month and January being the coldest on average (for the year 2009).
Temperatures in 2009 ranged from -20.9 Celsius to +34.8 Celsius, with an average temperature of +8.4 Celsius. The annual precipitation was 710.2 mm.
Here’s what you can expect each month in Brantford. Temperatures shown were from 2009.
| Months |
Average Temperatures |
| January |
between -19.9°C and 4.2°C (-3.8°F and 39.5°F) |
| February |
between -20.9°C and 10.9°C (-5.6°F and 51.6°F) |
| March |
between -15.3°C and 17.4°C (4.5°F and 63.3°F) |
| April |
between -4.0°C and 28.2°C (24.8°F and 82.8°F) |
| May |
between 0.7°C and 29.0°C (33.2°F and 84.2°F) |
| June |
between 5.5°C and 34.8°C (41.9°F and 94.6°F) |
| July |
between 9.4°C and 29.6°C (48.9°F and 85.3°F) |
| August |
between 8.8°C and 33.0°C (47.8°F and 91.4°F) |
| September |
between 5.9°C and 27.9°C (42.6°F and 82.2°F) |
| October |
between -2.6°C and 18.8°C (27.3°F and 65.8°F) |
| November |
between -2.1°C and 19.6°C (28.2°F and 67.3°F) |
| December |
between -13.9°C and 12.3°C (7.0°F and 54.1°F) |
For current weather conditions and a five-day forecast for Brantford, visit www.brantfordweather.ca.