Photo: NickCibroit · CC BY-SA 4.0More rain and snow fall on La Prairie than on 74% of Canadian towns: 1,041 mm a year
Sunny July days climb to about 26.6°C. Its July heat outdoes that of 70% of Canadian towns. From frozen January to warm July, readings climb 40°C. From June to September, highs of 21–27°C make it easy to spend the day outdoors.
ECCC publishes no normals for La Prairie itself; the figures are those of L'Acadie, 17 km south-east.
A year in La Prairie at a glance
Each month’s typical high and low, in °C.
What stands out about La Prairie’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in La Prairie feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 149 frosts and 124 warm days a year
From October to April frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 15 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
October brings the most rain and snow; February, the least. About 122 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
L'Acadie publishes no full year of precipitation or snowfall, so these figures, and the snow below, come from Montréal Trudeau (Airport), 22 km away.
Snowfall: about 217 cm in a normal year
Snow falls from October to April, most of all in January (about 52 cm).
Snowfall by month
Centimetres
Heating a home in La Prairie
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months.
Living with La Prairie’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul, Aug and Sep.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 36 days a year.
Roughly 50 days a year feel hotter than 30 once humidity is counted.
For blizzards, floods and wildfire, turn to La Prairie’s hazards page.
Flood & hazards →ECCC’s normals location: L'Acadie
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for L'Acadie.
| Distance from the town | 17 km south-east |
| Station altitude | 44 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Montréal Trudeau (Airport), 22 km |
| Coldest reading, 1991–2020 | −32.5°C |
| Hottest reading, 1991–2020 | 36.1°C |
| Average wind | 11.4 km/h on average, most often from the west |
| Next-nearest location | Montréal Trudeau (Airport), 22 km |
How La Prairie 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 La Prairie whose figures come from another normals location.
La Prairie weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −4.3°C | −13.6°C | −9.0°C | 86 mm | 52 cm |
| February | −2.9°C | −12.7°C | −7.8°C | 66 mm | 47 cm |
| March | 2.6°C | −6.7°C | −2.1°C | 77 mm | 37 cm |
| April | 11.1°C | 0.7°C | 5.9°C | 90 mm | 15 cm |
| May | 19.5°C | 7.8°C | 13.7°C | 86 mm | 0 cm |
| June | 24.2°C | 13.2°C | 18.7°C | 84 mm | 0 cm |
| July | 26.6°C | 15.5°C | 21.1°C | 91 mm | 0 cm |
| August | 25.3°C | 13.9°C | 19.6°C | 94 mm | 0 cm |
| September | 21.4°C | 9.7°C | 15.6°C | 89 mm | 0 cm |
| October | 13.6°C | 4.1°C | 8.9°C | 103 mm | 1 cm |
| November | 6.1°C | −1.7°C | 2.2°C | 84 mm | 16 cm |
| December | −0.7°C | −8.6°C | −4.7°C | 92 mm | 48 cm |
| Year | 11.9°C | 1.8°C | 6.8°C | 1,041 mm | 217 cm |
The month with the widest range: March, −28.7°C to 25.4°C
Bars run from each month’s record low to its record high over 1991–2020; January is the month whose average wanders most from year to year (±2.9°C around −9.0°C), August the one that wanders least (±1.0°C).
Where La Prairie’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for L'Acadie, its nearest location with complete temperatures.
- 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: 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 La Prairie’s climate
How warm does La Prairie get in summer?
In July, the warmest month, the typical high is 26.6°C.
How cold does La Prairie get in winter?
A typical January night falls to −13.6°C, the year’s low point.
How much rain and snow does La Prairie get?
Rain and snow, with snow counted as water, total 1,041 mm a year; October leads with 103 mm and February trails with 66 mm.
Are these figures for La Prairie itself?
Not exactly. La Prairie lacks a normals station, so L'Acadie supplies the figures.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for La Prairie →
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).