Photo: Roncanada · CC BY 4.0Summer afternoons in Côte-Saint-Luc are warmer than in 78% of Canadian towns
Midwinter brings lows of about −13.5°C. Rain and snow together come to more here than on 74% of Canadian towns. A year here swings 40°C from midwinter lows to midsummer highs. Windshields need scraping on about 146 mornings a year, the days the air reaches 0°C or below.
No ECCC station in Côte-Saint-Luc has 1991–2020 normals; the page reads Montréal Trudeau (Airport), 6.8 km west, instead.
A year in Côte-Saint-Luc at a glance
Each month’s typical high and low, in °C.
What stands out about Côte-Saint-Luc’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Côte-Saint-Luc feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
146 frost days and 121 days above 20°C a year
The frost season runs October to April, and January freezes nearly every night. On about 12 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 1,041 mm a year
The most falls in October, the least in February. On about 122 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
217 cm of snow in a typical year
Snow falls from October to April, most of all in January (about 52 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Côte-Saint-Luc
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Behind the figure: the degrees each day’s mean falls under 18°C, summed for the year. That means homes here need less heating than 62% of Canadian towns.
Living with Côte-Saint-Luc’s climate
What the normals mean for a garden, a day outside and the depth of winter.
About 167 days a year pass without frost, from an average last frost of 29 April to a first of 14 October.
Plan time outside for May, Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Winter brings about 40 days with a wind chill below −20.
About 50 days a year feel above 30 on the humidex.
The normals describe a typical year, not its worst days; the hazards page covers Côte-Saint-Luc’s.
Flood & hazards →ECCC’s normals location: Montréal Trudeau (Airport)
Behind the 1991–2020 normals for Montréal Trudeau (Airport) are 3 stations, which ECCC combines into one record.
| Distance from the town | 6.8 km west |
| Station altitude | 36 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −31.8°C |
| Hottest reading, 1991–2020 | 36.6°C |
| Average wind | 15.4 km/h on average, most often from the west |
| Next-nearest location | L'Acadie, 32 km |
How Côte-Saint-Luc compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Côte-Saint-Luc’s would only repeat its figures. The nearest place to Côte-Saint-Luc with figures is 15 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Côte-Saint-Luc Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Candiac 15 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
Côte-Saint-Luc 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 | −5.0°C | −13.5°C | −9.2°C | 86 mm | 52 cm |
| February | −3.4°C | −12.4°C | −8.0°C | 66 mm | 47 cm |
| March | 2.4°C | −6.5°C | −2.0°C | 77 mm | 37 cm |
| April | 11.3°C | 1.1°C | 6.2°C | 90 mm | 15 cm |
| May | 19.4°C | 8.3°C | 13.9°C | 86 mm | 0 cm |
| June | 24.2°C | 13.8°C | 19.0°C | 84 mm | 0 cm |
| July | 26.7°C | 16.7°C | 21.7°C | 91 mm | 0 cm |
| August | 25.7°C | 15.6°C | 20.6°C | 94 mm | 0 cm |
| September | 21.1°C | 10.9°C | 16.0°C | 89 mm | 0 cm |
| October | 13.2°C | 4.5°C | 8.9°C | 103 mm | 1 cm |
| November | 6.1°C | −1.7°C | 2.3°C | 84 mm | 16 cm |
| December | −1.2°C | −8.7°C | −5.0°C | 92 mm | 48 cm |
| Year | 11.7°C | 2.3°C | 7.0°C | 1,041 mm | 217 cm |
March has run from −26.9°C to 25.8°C in thirty years
Year to year, January varies most (a standard deviation of 3.0°C around −9.2°C) and June least (1.1°C).
Where Côte-Saint-Luc’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Montréal Trudeau (Airport): the nearest of its locations with every month’s temperatures.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Côte-Saint-Luc’s climate
How warm does Côte-Saint-Luc get in summer?
Summer peaks in July: a typical afternoon reaches 26.7°C.
How cold does Côte-Saint-Luc get in winter?
The year’s coldest nights belong to January, at about −13.5°C.
How much rain and snow does Côte-Saint-Luc get?
Measured as water, a year brings 1,041 mm: 103 mm in October, the wettest month, and 66 mm in February, the driest.
How long does snow stay on the ground?
Around 101 days a year see 1 cm of snow or more lying.
Are these figures for Côte-Saint-Luc itself?
They come from Montréal Trudeau (Airport), which ECCC uses as the nearest normals location for Côte-Saint-Luc.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Côte-Saint-Luc →
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).