Afternoon heat in Parc-Jarry beats that of 78% of Canadian towns
On a normal January night the air cools to about −13.5°C. It is a wet place: more rain and snow fall here than on 74% of Canadian towns. The wettest month is October; the driest is February. Expect about 146 frosty starts a year, days when the air falls to freezing.
Figures: ECCC’s 1991–2020 normals for Montréal Trudeau (Airport) (12 km south-west).
A year in Parc-Jarry at a glance
Each month’s typical high and low, in °C.
What stands out about Parc-Jarry’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Parc-Jarry feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 146 days, 20°C on 121
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
Rain and melted snow: about 1,041 mm a year
Some 122 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 217 cm of snow a year
Expect snow from October to April, with about 52 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Parc-Jarry
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. Over a year, a home here needs less heating than 62% of Canadian towns.
Living with Parc-Jarry’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Frost usually lets go around 29 April and returns near 14 October, about 167 days apart.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark May, Jun, Jul, Aug and Sep.
Parks & trails →Roughly 40 days a year feel colder than −20 in the wind.
Count on some 50 humid days a year with the humidex past 30.
Thirty-year normals hide the storms and the extremes: the hazards page has Parc-Jarry’s risks.
Flood & hazards →ECCC’s normals location: Montréal Trudeau (Airport)
ECCC builds the Montréal Trudeau (Airport) normals from 3 stations’ records over 1991–2020, joined where one replaced another.
| 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, 34 km |
How Parc-Jarry 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 Parc-Jarry’s own would show the same figures). Parc-Jarry has few close neighbours with figures, so the list reaches 14–19 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Parc-Jarry Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Montréal-Est 14 km · L'Assomption | 26.6°C about the same | −16.0°C 2.5°C colder | 1,041 mm |
| Brossard 16 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
Parc-Jarry 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 |
January varies most from one year to the next (3.0°C), June least
Over 1991–2020, March saw both −26.9°C (1992) and 25.8°C (2012), the widest span of any month.
Where Parc-Jarry’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: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Parc-Jarry’s climate
How warm does Parc-Jarry get in summer?
A normal July afternoon tops out at about 26.7°C, the year’s high point.
How cold does Parc-Jarry get in winter?
Deep winter means January, when nights average −13.5°C.
How much rain and snow does Parc-Jarry get?
The yearly total is about 1,041 mm. October gets 103 mm, the most of any month; February gets 66 mm, the least.
How long does snow stay on the ground?
Count on about 101 days of snow cover a year, 1 cm or deeper.
Are these figures for Parc-Jarry itself?
Close to it: they are ECCC’s 1991–2020 normals for Montréal Trudeau (Airport), just outside Parc-Jarry’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Parc-Jarry →
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).