Photo: Edgar Gariépy · Public domainMascouche has colder winter nights than 75% of Canadian towns
Midsummer highs settle at about 26.6°C. Winter and summer sit 43°C apart. Rain and snow together come to more here than on 74% of Canadian towns. About 122 days a year bring 1 mm of precipitation or more.
The nearest ECCC normals location to Mascouche is L'Assomption, 17 km north-east, and every figure on this page is its.
A year in Mascouche at a glance
Each month’s typical high and low, in °C.
What stands out about Mascouche’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Mascouche feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 161 days, 20°C on 119
The frost season runs October to May, and January freezes nearly every night. Some 24 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
1,041 mm of precipitation in a typical year
October brings the most rain and snow; February, the least.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
ECCC’s L'Assomption normals leave out precipitation and snow; both come from Montréal Trudeau (Airport) here, 32 km away.
Snowfall: about 217 cm in a normal year
The snow season runs October to April; January brings the most, about 52 cm.
Snowfall by month
Centimetres
Heating a home in Mascouche
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.
Living with Mascouche’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 44 days a year.
About 49 days a year turn sultry, with the humidex past 30.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Mascouche’s hazards page.
Flood & hazards →ECCC’s normals location: L'Assomption
The page’s figures are ECCC’s 1991–2020 normals for L'Assomption, one of its 450 normals locations.
| Distance from the town | 17 km north-east |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Montréal Trudeau (Airport), 32 km |
| Coldest reading, 1991–2020 | −40.0°C |
| Hottest reading, 1991–2020 | 36.2°C |
| Average wind | 10.0 km/h on average, most often from the south-west |
| Next-nearest location | Montréal Trudeau (Airport), 32 km |
How Mascouche 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 Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Mascouche’s would only repeat its figures. The nearest place to Mascouche with figures is 13 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Mascouche L'Assomption | 26.6°C | −16.0°C | 1,041 mm |
| Bois-des-Filion 13 km · Montréal Trudeau (Airport) | 26.7°C about the same | −13.5°C 2.5°C milder | 1,041 mm |
Mascouche weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.9°C | −16.0°C | −10.9°C | 86 mm | 52 cm |
| February | −4.0°C | −14.8°C | −9.4°C | 66 mm | 47 cm |
| March | 1.8°C | −8.3°C | −3.2°C | 77 mm | 37 cm |
| April | 10.8°C | 0.1°C | 5.5°C | 90 mm | 15 cm |
| May | 19.2°C | 7.2°C | 13.2°C | 86 mm | 0 cm |
| June | 24.3°C | 12.4°C | 18.4°C | 84 mm | 0 cm |
| July | 26.6°C | 14.8°C | 20.7°C | 91 mm | 0 cm |
| August | 25.5°C | 13.7°C | 19.6°C | 94 mm | 0 cm |
| September | 21.1°C | 9.2°C | 15.2°C | 89 mm | 0 cm |
| October | 13.0°C | 3.2°C | 8.1°C | 103 mm | 1 cm |
| November | 5.4°C | −2.7°C | 1.3°C | 84 mm | 16 cm |
| December | −1.9°C | −10.2°C | −6.1°C | 92 mm | 48 cm |
| Year | 11.3°C | 0.7°C | 6.0°C | 1,041 mm | 217 cm |
January strays furthest from its normal year to year, by 3.1°C; June the least
Over 1991–2020, March saw both −29.5°C (1992) and 26.0°C (2012), the widest span of any month.
Where Mascouche’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at L'Assomption, the closest ECCC location with twelve months of temperature normals.
- Other locations: a location missing months of precipitation or snow is filled from the nearest that has them all, never mixed month by month.
- 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 Mascouche’s climate
How warm does Mascouche get in summer?
Peak warmth comes in July, at about 26.6°C by mid-afternoon.
How cold does Mascouche get in winter?
The year’s coldest nights belong to January, at about −16.0°C.
How much rain and snow does Mascouche get?
The yearly total is about 1,041 mm. October gets 103 mm, the most of any month; February gets 66 mm, the least.
Are these figures for Mascouche itself?
They describe L'Assomption, the nearest normals location, rather than Mascouche itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Mascouche →
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).