Hardly any Canadian towns wake to less frost than Brentwood
Peak summer warmth arrives in July, with afternoons near 23.0°C. Precipitation is plentiful here, more than falls on 97% of Canadian towns. Rain or snow is most frequent in November and least in July. Plan time outside from May to September, when highs sit at 18–23°C.
The nearest ECCC normals location to Brentwood is Vancouver (Harbour), 9.6 km north-west, and every figure on this page is its.
A year in Brentwood at a glance
Each month’s typical high and low, in °C.
What stands out about Brentwood’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in British Columbia beside it.
What a year in Brentwood feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
Frost on 17 days, 20°C on 87
Frosts fall from November to March; January has the most, about 6.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,537 mm of rain and snow a year
On about 142 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
37 cm of snow in a typical year
The snow season runs November to March; December brings the most, about 14 cm.
Snowfall by month
Centimetres
Vancouver (Harbour) publishes no full year of snowfall, so these figures come from Vancouver International (Airport), 16 km away.
Heating a home in Brentwood
89% of a year’s heating need falls between October and April. Months averaging under 10°C: November to March.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. In heating terms, homes need less heating than almost every Canadian town.
Living with Brentwood’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
The outdoor season by the averages is May, Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Severe weather is a separate story from the averages: see Brentwood’s hazards page.
Flood & hazards →ECCC’s normals location: Vancouver (Harbour)
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Vancouver (Harbour).
| Distance from the town | 9.6 km north-west |
| Station altitude | 3 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | Vancouver International (Airport), 16 km |
| Coldest reading, 1991–2020 | −9.0°C |
| Hottest reading, 1991–2020 | 34.9°C |
| Next-nearest location | Vancouver International (Airport), 16 km |
How Brentwood 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 British Columbia.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Brentwood’s would only repeat its figures. No closer places have figures: these lie 9–16 km from Brentwood.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Brentwood Vancouver (Harbour) | 23.0°C | 3.3°C | 1,537 mm |
| New Westminster 8.7 km · Pitt Meadows | 25.0°C 2.0°C warmer | 0.5°C 2.8°C colder | 1,649 mm |
| Musqueam 2 16 km · Vancouver International (Airport) | 22.4°C 0.6°C cooler | 1.4°C 1.9°C colder | 1,160 mm |
Brentwood weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 7.4°C | 3.3°C | 5.3°C | 237 mm | 12 cm |
| February | 8.4°C | 3.3°C | 5.9°C | 117 mm | 5 cm |
| March | 10.5°C | 4.6°C | 7.6°C | 163 mm | 3 cm |
| April | 13.9°C | 6.9°C | 10.4°C | 118 mm | under 1 cm |
| May | 17.8°C | 10.2°C | 14.0°C | 73 mm | 0 cm |
| June | 20.2°C | 12.8°C | 16.5°C | 66 mm | 0 cm |
| July | 23.0°C | 14.9°C | 19.0°C | 44 mm | 0 cm |
| August | 23.0°C | 14.8°C | 18.9°C | 49 mm | 0 cm |
| September | 19.4°C | 12.1°C | 15.8°C | 71 mm | 0 cm |
| October | 13.9°C | 8.6°C | 11.2°C | 157 mm | under 1 cm |
| November | 9.7°C | 5.3°C | 7.5°C | 245 mm | 3 cm |
| December | 7.1°C | 3.2°C | 5.2°C | 200 mm | 14 cm |
| Year | 14.5°C | 8.3°C | 11.4°C | 1,537 mm | 37 cm |
June has run from −2.8°C to 30.6°C in thirty years
The month to count on least is January: one year in three its average strays more than 1.5°C from 5.3°C. July moves least, typically by 0.8°C.
Where Brentwood’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Vancouver (Harbour), 1991–2020.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Brentwood’s climate
How warm does Brentwood get in summer?
Summer peaks in July: a typical afternoon reaches 23.0°C.
How cold does Brentwood get in winter?
Midwinter means December, when a typical night reaches 3.2°C.
How much rain and snow does Brentwood get?
Around 1,537 mm a year in all, from 245 mm in November down to 44 mm in July.
Are these figures for Brentwood itself?
They are borrowed from Vancouver (Harbour), the nearest place to Brentwood where ECCC publishes 1991–2020 normals.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Brentwood →
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).