Afternoon heat in Léry beats that of 78% of Canadian towns
Nights in January average −13.5°C. From frozen January to warm July, readings climb 40°C. Counting rain and snow together, it is wetter than 74% of Canadian towns. Plan for rain or snow on about 122 days a year, the days with 1 mm or more.
Léry has no ECCC normals station of its own: every figure here comes from Montréal Trudeau (Airport), 14 km north.
A year in Léry at a glance
Each month’s typical high and low, in °C.
What stands out about Léry’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Léry feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 146 frosts and 121 warm days a year
From October to April frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 12 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,041 mm of rain and snow a year
October brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 217 cm of snow a 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 Léry
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. By this count, homes here need less heating than 62% of Canadian towns.
Living with Léry’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Wait until about 29 April to plant out; frost tends to come back around 14 October, about 167 days later.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to May, Jun, Jul, Aug and Sep.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 40 days a year.
Humid heat, a humidex over 30, comes on about 50 days a year.
Averages smooth over blizzards, ice storms, floods and heat waves; Léry’s hazards page covers the risks.
Flood & hazards →ECCC’s normals location: Montréal Trudeau (Airport)
Montréal Trudeau (Airport) is a composite: ECCC joins 3 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 14 km north |
| 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, 36 km |
How Léry compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Quebec.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Léry’s own would show the same figures). Distances here run 17–24 km: that is how far the nearest places with figures are from Léry.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Léry Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Saint-Rémi 17 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
| Saint-Louis-de-Gonzague 24 km · St-Anicet | 26.7°C about the same | −13.0°C 0.5°C milder | 1,047 mm |
Léry weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| 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 |
The month with the widest range: March, −26.9°C to 25.8°C
Bars run from each month’s record low to its record high over 1991–2020; January is the month whose average wanders most from year to year (±3.0°C around −9.2°C), June the one that wanders least (±1.1°C).
Where Léry’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: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- 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 Léry’s climate
How warm does Léry get in summer?
At its warmest, in July, the normal high is 26.7°C.
How cold does Léry get in winter?
The coldest nights come in January, averaging −13.5°C.
How much rain and snow does Léry get?
Precipitation totals 1,041 mm a year, with October the wettest month (103 mm) and February the driest (66 mm).
How long does snow stay on the ground?
About 101 days a year have 1 cm of snow or more on the ground.
Are these figures for Léry itself?
Not as such: Montréal Trudeau (Airport) is the nearest normals location, and Léry has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Léry →
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).