Brantford climate
Brantford (Ontario, Canada) has a hot-summer humid continental climate (Köppen Dfa). The average temperature over the year is 9 °C48 °F, and about 791 mm31 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Brantford climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −130 | −818 | −424 | 501.9 | 28 |
| Feb | 032 | −817 | −424 | 441.8 | 27 |
| Mar | 541 | −425 | 033 | 522.0 | 25 |
| Apr | 1254 | 134 | 744 | 682.7 | 13 |
| May | 1967 | 846 | 1356 | 773.0 | 1 |
| Jun | 2577 | 1457 | 1967 | 783.1 | 0 |
| Jul | 2883 | 1763 | 2373 | 863.4 | 0 |
| Aug | 2882 | 1762 | 2272 | 652.6 | 0 |
| Sep | 2474 | 1355 | 1865 | 793.1 | 0 |
| Oct | 1560 | 644 | 1152 | 773.0 | 2 |
| Nov | 847 | 133 | 540 | 602.4 | 14 |
| Dec | 236 | −425 | −130 | 562.2 | 26 |
| Year | 2883 | −817 | 948 | 79131 | 136 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 87% | 77% | 1.5 | 9:19 |
| Feb | 86% | 75% | 2.3 | 10:27 |
| Mar | 82% | 68% | 3.5 | 11:48 |
| Apr | 78% | 65% | 4.6 | 13:21 |
| May | 75% | 63% | 5.5 | 14:39 |
| Jun | 72% | 56% | 6.2 | 15:21 |
| Jul | 67% | 51% | 6.1 | 15:04 |
| Aug | 68% | 50% | 5.3 | 13:56 |
| Sep | 72% | 51% | 4.2 | 12:26 |
| Oct | 78% | 67% | 2.5 | 10:56 |
| Nov | 82% | 72% | 1.6 | 9:38 |
| Dec | 86% | 82% | 1.1 | 9:00 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Brantford is like
The warmest month is July, with an average high of 28 °C83 °F and a low of 17 °C63 °F. The coldest is January, when highs average −1 °C30 °F and lows −8 °C18 °F. Seasons are strongly marked: the warmest month is on average 27.3 °C49.2 °F warmer than the coldest.
Annual precipitation is moderate at about 791 mm31 in. Rain is spread fairly evenly through the year. The wettest month is July (86 mm3.4 in), the driest is February (44 mm1.8 in).
Relative humidity ranges from 67% in July to 87% in January. The clearest skies (lowest average cloud amount, 50%) are typical of August. Average wind speed near the ground ranges from 9 km/h (6 mph) in August to 17 km/h (10 mph) in January. Daylight lasts from about 9.0 hours in December to 15.4 hours in June.
A lasting snow cover is typical in December–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 17 cm).
Best time to visit Brantford
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 24 °C74 °F to 28 °C83 °F with 65 mm2.6 in to 86 mm3.4 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −1 °C30 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Brantford
- Winter (December–February) — highs −130 to 2 °C36 °F, lows −817 to −4 °C25 °F, about 50 mm2.0 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 541 to 19 °C67 °F, lows −425 to 8 °C46 °F, about 66 mm2.6 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2577 to 28 °C83 °F, lows 1457 to 17 °C63 °F, about 76 mm3.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 847 to 24 °C74 °F, lows 133 to 13 °C55 °F, about 72 mm2.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Brantford compares
Compared with Kitchener, about 38 km to the northwest, Brantford is on average 1.5 °C2.7 °F warmer and receives a similar amount of precipitation. The difference is largest in December (1.9 °C3.4 °F warmer).
Of the 40 places in Canada covered by World Climates, Brantford is the 11th warmest by annual mean temperature and the 21st wettest by annual precipitation. See all of them on the Canada climate page.
Places in other countries with the most similar temperature and rainfall pattern: Rochester (United States, Dfa), Buffalo (United States, Dfa) and Ann Arbor (United States, Dfa).
Nearby places
- Kitchener 38 km · 8 °C46 °F · 762 mm30 in
- Guelph 46 km · 8 °C46 °F · 770 mm30 in
- Brampton 73 km · 8 °C47 °F · 770 mm30 in
- London 80 km · 9 °C48 °F · 660 mm26 in
- St. Catharines 83 km · 10 °C50 °F · 872 mm34 in
- Toronto 95 km · 9 °C48 °F · 774 mm30 in
- Markham 115 km · 8 °C47 °F · 723 mm28 in
- Buffalo 116 km · 9 °C49 °F · 947 mm37 in
Frequently asked questions
What is the warmest month in Brantford?
July is the warmest month in Brantford, with an average high of 28 °C (83 °F) and an average low of 17 °C (63 °F).
What is the coldest month in Brantford?
January is the coldest month, with an average high of -1 °C (30 °F) and an average low of -8 °C (18 °F).
When does it rain the most in Brantford?
July is the wettest month with about 86 mm (3.4 in) of precipitation; February is the driest with about 44 mm (1.8 in).
What is the best time to visit Brantford?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.