Photo: Gaétan Veillette · CC BY-SA 4.0Precipitation in Contrecoeur tops that of 82% of Canadian towns: 1,109 mm a year
The depth of winter brings overnight lows near −16.0°C. Winter nights are cold: in January they are colder than in 75% of Canadian towns. Rain or snow is most frequent in August and least in February. Wet days, with 1 mm of rain or snow or more, come about 145 times a year.
Borrowed figures: Contrecoeur has no normals station, so these come from L'Assomption, 17 km west.
A year in Contrecoeur at a glance
Each month’s typical high and low, in °C.
What stands out about Contrecoeur’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Contrecoeur feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 161 frosts and 119 warm days a year
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
1,109 mm of precipitation in a typical year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Precipitation and snowfall: Fleury, 19 km away (L'Assomption records no complete year of either).
202 cm of snow in a typical year
Expect snow from October to April, with about 49 cm in December, the snowiest month.
Snowfall by month
Centimetres
Heating a home in Contrecoeur
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The count adds up, day by day, how far the mean temperature falls short of 18°C.
Living with Contrecoeur’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul, Aug and Sep.
Parks & trails →On some 44 days a year the wind chill drops past −20; mitts and a scarf earn their place.
The air feels heavier than 30 on the humidex for about 49 days a year.
Averages smooth over blizzards, ice storms, floods and heat waves; Contrecoeur’s hazards page covers the risks.
Flood & hazards →ECCC’s normals location: L'Assomption
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for L'Assomption.
| Distance from the town | 17 km west |
| Station altitude | 21 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Fleury, 19 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 | Fleury, 19 km |
How Contrecoeur compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Contrecoeur’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Contrecoeur L'Assomption | 26.6°C | −16.0°C | 1,109 mm |
| Saint-Roch-de-Richelieu 5.6 km · Fleury | 26.0°C 0.6°C cooler | −14.8°C 1.2°C milder | 1,109 mm |
| Lavaltrie 5.8 km · L'Assomption | 26.6°C about the same | −16.0°C about the same | 1,109 mm |
Contrecoeur 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 | 81 mm | 45 cm |
| February | −4.0°C | −14.8°C | −9.4°C | 61 mm | 43 cm |
| March | 1.8°C | −8.3°C | −3.2°C | 71 mm | 38 cm |
| April | 10.8°C | 0.1°C | 5.5°C | 96 mm | 13 cm |
| May | 19.2°C | 7.2°C | 13.2°C | 98 mm | under 1 cm |
| June | 24.3°C | 12.4°C | 18.4°C | 102 mm | 0 cm |
| July | 26.6°C | 14.8°C | 20.7°C | 106 mm | 0 cm |
| August | 25.5°C | 13.7°C | 19.6°C | 114 mm | 0 cm |
| September | 21.1°C | 9.2°C | 15.2°C | 97 mm | 0 cm |
| October | 13.0°C | 3.2°C | 8.1°C | 108 mm | 2 cm |
| November | 5.4°C | −2.7°C | 1.3°C | 90 mm | 12 cm |
| December | −1.9°C | −10.2°C | −6.1°C | 85 mm | 49 cm |
| Year | 11.3°C | 0.7°C | 6.0°C | 1,109 mm | 202 cm |
The most changeable month: January, give or take 3.1°C; the steadiest, June
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −29.5°C in 1992 to 26.0°C in 2012.
Where Contrecoeur’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, L'Assomption: the nearest of its locations with every month’s temperatures.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 Contrecoeur’s climate
How warm does Contrecoeur get in summer?
Peak warmth comes in July, at about 26.6°C by mid-afternoon.
How cold does Contrecoeur get in winter?
The coldest nights come in January, averaging −16.0°C.
How much rain and snow does Contrecoeur get?
Rain and snow, with snow counted as water, total 1,109 mm a year; August leads with 114 mm and February trails with 61 mm.
Are these figures for Contrecoeur itself?
No, they come from L'Assomption; ECCC keeps no 1991–2020 normals in Contrecoeur itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Contrecoeur →
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).