Brantford climate — normals and trends
Brantford (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.9 °C and it receives 893 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (20.9 °C on average) and the coldest is January (-5.7 °C). Rainfall peaks in June.
Brantford averages 139 frost days, 9 hot days (≥ 30 °C) and 127 rainy days per year.
Brantford has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 150 to 128 per year over the period.
The hottest day of the period reached 36.9 °C (on 7 July 1988) and the coldest -32.6 °C (on 16 February 2015).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BrantfordOntario
- coords
- 43.13°, -80.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.9°C
Average daily high
12.6°C
Average daily low
3.1°C
Annual rainfall
893mm
Sunshine / day
8.5h
Mean relative humidity
73%
Average peak wind
18.6km/h
Seasonal range
26.6°C
Frost days (< 0 °C)
139 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
102.3 cm
Average feels-like high
10.2 °C
Average feels-like low
0.0 °C
Average peak gust
40.0 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.30 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.9 °C
7 July 1988
Coldest day
-32.6 °C
16 February 2015
Wettest day
85 mm
15 October 1954
Windiest day
50.3 km/h
15 March 1959
Strongest gust
111.2 km/h
6 April 1985
Hottest feels-like
41.0 °C
14 July 1995
Coldest feels-like
-37.6 °C
16 February 2015
Snowiest day
25.1 cm
5 December 1977
Sunniest day
15.0 h
16 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -2.9 °C | -1.0 °C | 35 mm | -26 mm |
| Feb | -2.0 °C | -1.2 °C | 69 mm | +13 mm |
| Mar | 8.1 °C | +3.5 °C | 77 mm | +5 mm |
| Apr | 12.9 °C | +0.8 °C | 66 mm | -17 mm |
| May | 17.1 °C | -1.6 °C | 83 mm | -1 mm |
| Jun | 25.1 °C | +1.2 °C | 76 mm | -15 mm |
| Jul | 28.1 °C | +1.9 °C | 44 mm | -41 mm |
| Aug | 25.0 °C | -0.1 °C | 59 mm | -18 mm |
| Sep | 23.3 °C | +2.2 °C | 43 mm | -33 mm |
| Oct | 16.1 °C | +1.7 °C | 65 mm | -5 mm |
| Nov | 6.7 °C | -0.4 °C | 54 mm | -19 mm |
| Dec | 0.0 °C | -0.8 °C | 90 mm | +23 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Brantford?
Brantford has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.9 °C and it receives 893 mm of precipitation per year.
What is the hottest day ever recorded in Brantford?
The hottest day measured in Brantford between 1940 and 2025 was 7 July 1988, reaching 36.9 °C.
What is the coldest day in Brantford?
The coldest day measured in Brantford between 1940 and 2025 was 16 February 2015, at -32.6 °C.
Does it snow in Brantford?
Yes. Brantford gets on average 102.3 cm of snow per year and has around 139 frost days.
Has the climate of Brantford warmed?
Yes: Brantford warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Brantford?
The wettest day measured in Brantford between 1940 and 2025 was 15 October 1954, with 85 mm of rain in 24 hours.
What was the windiest day in Brantford?
The windiest day measured in Brantford between 1940 and 2025 was 15 March 1959, with winds reaching 50.3 km/h.
What is the warmest month in Brantford?
The warmest month in Brantford is July (20.9 °C on average); the coldest is January (-5.7 °C).
How much does it rain in Brantford?
Brantford receives on average 893 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Brantford?
Brantford gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Brantford?
The heaviest 24-hour snowfall measured in Brantford between 1940 and 2025 was 5 December 1977, with 25.1 cm.
Are there tropical nights in Brantford?
Yes: Brantford has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Brantford?
In Brantford, between 1940 and 2025, the highest apparent temperature reached 41.0 °C on 14 July 1995, and the lowest was -37.6 °C on 16 February 2015.
Compare Brantford with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Brantford