Winter nights in Montréal-Est are colder than in 75% of Canadian towns
High summer brings afternoon highs near 26.6°C. Rain and snow together come to more here than on 74% of Canadian towns. Of all months, October brings the most precipitation and February the least. For walks and days out, the stretch from June to September brings highs of 21–27°C.
ECCC publishes no normals for Montréal-Est itself; the figures are those of L'Assomption, 21 km north.
A year in Montréal-Est at a glance
Each month’s typical high and low, in °C.
What stands out about Montréal-Est’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Montréal-Est 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
About 1,041 mm of rain and snow a year
About 122 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Precipitation and snowfall: Montréal Trudeau (Airport), 26 km away (L'Assomption records no complete year of either).
Snowfall: about 217 cm in a normal year
Expect snow from October to April, with about 52 cm in January, the snowiest month.
Snowfall by month
Centimetres
Heating a home in Montréal-Est
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days.
Living with Montréal-Est’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 →Expect around 44 days a year when the wind chill sinks below −20.
The air feels heavier than 30 on the humidex for about 49 days a year.
Ice storms, floods and heat waves are risks, not averages: they are on Montréal-Est’s hazards page.
Flood & hazards →ECCC’s normals location: L'Assomption
L'Assomption is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 21 km north |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Montréal Trudeau (Airport), 26 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), 26 km |
How Montréal-Est 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
Places around Montréal-Est whose figures come from another normals location.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Montréal-Est L'Assomption | 26.6°C | −16.0°C | 1,041 mm |
| Tétreaultville 3.4 km · Montréal Trudeau (Airport) | 26.7°C about the same | −13.5°C 2.5°C milder | 1,041 mm |
| Pointe-aux-Trembles 3.6 km · L'Assomption | 26.6°C about the same | −16.0°C about the same | 1,041 mm |
Montréal-Est weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the 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
Records from 1991 to 2020: no month spans more than March, between −29.5°C (1992) and 26.0°C (2012).
Where Montréal-Est’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for L'Assomption, 1991–2020, chosen as the nearest location with a full temperature record.
- Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Montréal-Est’s climate
How warm does Montréal-Est get in summer?
On a normal day in July the thermometer climbs to 26.6°C, the warmest of the year.
How cold does Montréal-Est get in winter?
Deep winter means January, when nights average −16.0°C.
How much rain and snow does Montréal-Est get?
Over twelve months, rain and melted snow come to 1,041 mm; the range runs from 66 mm in February to 103 mm in October.
Are these figures for Montréal-Est itself?
They come from L'Assomption, which ECCC uses as the nearest normals location for Montréal-Est.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Montréal-Est →
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).