Photo: P199 · Public domainFor weather, Brighton is about as ordinary as Canadian towns get
A typical year brings 941 mm of rain and melted snow, with July afternoons around 26.5°C and January nights around −11.2°C. Only about 146 nights a year bring a frost, fewer than in 68% of Canadian towns. Precipitation peaks in September and eases off in February. Heating does most of its work from October to April, in months below 10°C on average.
Brighton has no ECCC normals station of its own: every figure here comes from Trenton, 18 km north-east.
A year in Brighton at a glance
Each month’s typical high and low, in °C.
What stands out about Brighton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Brighton feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 146 frosts and 124 warm days a year
From October to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 9 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 941 mm of rain and snow a year
On about 116 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 155 cm of snow a year
Snow falls from November to April, most of all in January (about 44 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Brighton
92% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year. In heating terms, homes need less heating than 70% of Canadian towns.
Living with Brighton’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Frost usually lets go around 1 May and returns near 10 October, about 161 days apart.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Winter brings about 28 days with a wind chill below −20.
Humid heat, a humidex over 30, comes on about 51 days a year.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Brighton’s hazards page.
Flood & hazards →ECCC’s normals location: Trenton
Trenton is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 18 km north-east |
| Station altitude | 86 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | Yes |
| Coldest reading, 1991–2020 | −35.1°C |
| Hottest reading, 1991–2020 | 35.6°C |
| Average wind | 12.7 km/h on average, most often from the south-west |
| Next-nearest location | Cobourg, 37 km |
How Brighton compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Ontario.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Brighton’s would only repeat its figures. No closer places have figures: these lie 12–42 km from Brighton.
Brighton weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −1.6°C | −11.2°C | −6.4°C | 78 mm | 44 cm |
| February | −0.7°C | −10.6°C | −5.7°C | 60 mm | 39 cm |
| March | 4.4°C | −5.5°C | −0.6°C | 64 mm | 22 cm |
| April | 11.6°C | 0.9°C | 6.3°C | 84 mm | 6 cm |
| May | 18.9°C | 7.3°C | 13.1°C | 81 mm | 0 cm |
| June | 23.9°C | 12.7°C | 18.3°C | 83 mm | 0 cm |
| July | 26.5°C | 15.4°C | 21.0°C | 75 mm | 0 cm |
| August | 25.6°C | 14.4°C | 20.0°C | 70 mm | 0 cm |
| September | 21.6°C | 10.1°C | 15.8°C | 92 mm | 0 cm |
| October | 14.2°C | 4.2°C | 9.2°C | 91 mm | 1 cm |
| November | 7.4°C | −1.5°C | 3.0°C | 84 mm | 10 cm |
| December | 1.4°C | −6.9°C | −2.8°C | 77 mm | 33 cm |
| Year | 12.8°C | 2.4°C | 7.6°C | 941 mm | 155 cm |
In March, anything from −25.6°C to 25.4°C
Two years in three, January’s average falls within 3.0°C of its normal of −6.4°C; June keeps to within 1.1°C.
Where Brighton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Trenton, the nearest location with a full year of temperatures.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Brighton’s climate
How warm does Brighton get in summer?
Midsummer means July, with afternoons near 26.5°C on a typical day.
How cold does Brighton get in winter?
Midwinter means January, when a typical night reaches −11.2°C.
How much rain and snow does Brighton get?
Count on roughly 941 mm a year, heaviest in September (92 mm) and lightest in February (60 mm).
How long does snow stay on the ground?
In a normal winter there are about 75 days with at least 1 cm of snow lying.
Are these figures for Brighton itself?
The figures are ECCC’s for Trenton; Brighton has no normals station.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Brighton →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).