Afternoon heat in Pont-Viau beats that of 78% of Canadian towns
January nights here settle around −13.5°C. It is a wet place: more rain and snow fall here than on 74% of Canadian towns. Seasons differ by 40°C, from the coldest nights to the warmest afternoons. Ice scrapers and block heaters earn their keep on roughly 146 days a year at 0°C or below.
The nearest ECCC normals location to Pont-Viau is Montréal Trudeau (Airport), 12 km south-west, and every figure on this page is its.
A year in Pont-Viau at a glance
Each month’s typical high and low, in °C.
What stands out about Pont-Viau’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Pont-Viau feels like
Each season’s and each month’s usual high and low, 1991–2020.
146 frost days and 121 days above 20°C a year
The frost season runs October to April, and January freezes nearly 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
1,041 mm of precipitation in a typical year
October is the wettest month and February the driest. 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
From October to April snow is likely; January is the peak, at about 52 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Pont-Viau
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year. That means homes here need less heating than 62% of Canadian towns.
Living with Pont-Viau’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Between the last frost, near 29 April, and the first, near 14 October, lie about 167 frost-free days.
For long days outdoors, May, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Roughly 40 days a year feel colder than −20 in the wind.
Summer brings about 50 days when the humidex passes 30.
For the weather that does damage, from ice storms to floods, see Pont-Viau’s hazards page.
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 | 12 km south-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'Assomption, 33 km |
How Pont-Viau 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
Places around Pont-Viau whose figures come from another normals location. Pont-Viau has few close neighbours with figures, so the list reaches 16–22 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Pont-Viau Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Montréal-Est 16 km · L'Assomption | 26.6°C about the same | −16.0°C 2.5°C colder | 1,041 mm |
| Brossard 22 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
Pont-Viau 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 |
Two years in three, January’s average lands within 3.0°C of normal, against the steadier June
Bars run from each month’s record low to its record high since 1991. March spans the most, from −26.9°C (1992) to 25.8°C (2012).
Where Pont-Viau’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Montréal Trudeau (Airport), its nearest location with complete temperatures.
- 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: 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 Pont-Viau’s climate
How warm does Pont-Viau get in summer?
Afternoons average 26.7°C in July, the warmest time of year.
How cold does Pont-Viau get in winter?
Deep winter means January, when nights average −13.5°C.
How much rain and snow does Pont-Viau get?
Rain and snow add up to about 1,041 mm of water a year; October brings the most (103 mm), February the least (66 mm).
How long does snow stay on the ground?
A layer of at least 1 cm stays down on about 101 days a year.
Are these figures for Pont-Viau itself?
Not quite: they come from Montréal Trudeau (Airport), the closest ECCC normals location to Pont-Viau.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Pont-Viau →
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).