Photo: Grafcom . · CC BY-SA 3.0July in Saint-Jude runs hotter than in 78% of Canadian towns
On a normal January night the air cools to about −13.5°C. Rain or snow is most frequent in October and least in February. Counting rain and snow together, it is wetter than 74% of Canadian towns. The outdoor season runs from May to September, with highs of 19–27°C.
These are not Saint-Jude’s own readings: ECCC keeps no normals there, so the page uses Montréal Trudeau (Airport), 19 km west.
A year in Saint-Jude at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Jude’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Jude feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
146 frost days and 121 days above 20°C a year
Frost comes from October to April; in January almost every night freezes. On about 12 nights a year the air falls below −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
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 Saint-Jude
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Degree days add up how far each day’s mean temperature falls below 18°C over a year. Over a year, a home here needs less heating than 62% of Canadian towns.
Living with Saint-Jude’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Between the last frost, near 29 April, and the first, near 14 October, lie about 167 frost-free days.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark May, Jun, Jul, Aug and Sep.
Parks & trails →Bitter wind chill, under −20, comes on about 40 days a year.
Count on some 50 humid days a year with the humidex past 30.
Averages smooth over blizzards, ice storms, floods and heat waves; Saint-Jude’s hazards page covers the risks.
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 | 19 km 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'Acadie, 30 km |
How Saint-Jude 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
Nearby places read from a different ECCC location (places on Saint-Jude’s own would show the same figures). The nearest places to Saint-Jude with figures are 9–14 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Jude Montréal Trudeau (Airport) | 26.7°C | −13.5°C | 1,041 mm |
| Brossard 9.0 km · L'Acadie | 26.6°C about the same | −13.6°C about the same | 1,041 mm |
| Boucherville 10 km · L'Assomption | 26.6°C about the same | −16.0°C 2.5°C colder | 1,041 mm |
Saint-Jude 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 |
From −26.9°C to 25.8°C: March’s coldest and warmest days since 1991
The month to count on least is January: one year in three its average strays more than 3.0°C from −9.2°C. June moves least, typically by 1.1°C.
Where Saint-Jude’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Montréal Trudeau (Airport) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Saint-Jude’s climate
How warm does Saint-Jude get in summer?
In July, the warmest month, the typical high is 26.7°C.
How cold does Saint-Jude get in winter?
On a normal January night the air drops to −13.5°C, the coldest of the year.
How much rain and snow does Saint-Jude get?
Around 1,041 mm a year in all, from 103 mm in October down to 66 mm in February.
How long does snow stay on the ground?
About 101 days a year count as snow-covered, with 1 cm or more.
Are these figures for Saint-Jude itself?
Not quite: they come from Montréal Trudeau (Airport), the closest ECCC normals location to Saint-Jude.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Jude →
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).