Photo: Unknown Unknown · Public domainSnowfall in Champlain tops that of 90% of Canadian towns: about 274 cm a year
Peak summer warmth arrives in July, with afternoons near 25.1°C. Counting rain and snow together, it is wetter than 80% of Canadian towns. Some 39°C separates winter nights from summer afternoons. Ice scrapers and block heaters earn their keep on roughly 145 days a year at 0°C or below.
Borrowed figures: Champlain has no normals station, so these come from Trois-Rivières, 14 km south-west.
A year in Champlain at a glance
Each month’s typical high and low, in °C.
What stands out about Champlain’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Champlain feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 145 days, 20°C on 104
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
1,101 mm of precipitation in a typical year
The most falls in July, the least in February. About 132 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 274 cm in a normal year
From October to April snow is likely; December is the peak, at about 69 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Champlain
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up.
Living with Champlain’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The outdoor season by the averages is Jun, Jul, Aug and Sep, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Winter brings about 42 days with a wind chill below −20.
The air feels heavier than 30 on the humidex for about 37 days a year.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Champlain’s hazards page.
Flood & hazards →ECCC’s normals location: Trois-Rivières
ECCC builds the Trois-Rivières normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 14 km south-west |
| Station altitude | 6 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −32.3°C |
| Hottest reading, 1991–2020 | 34.0°C |
| Average wind | 13.4 km/h on average, most often from the south-west |
| Next-nearest location | Fortierville, 26 km |
How Champlain 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 Champlain’s own would show the same figures).
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Champlain Trois-Rivières | 25.1°C | −14.1°C | 1,101 mm |
| Saint-Maurice 12 km · Trois-Rivières | 25.1°C about the same | −14.1°C about the same | 1,101 mm |
| Batiscan 12 km · Fortierville | 25.5°C about the same | −16.9°C 2.8°C colder | 1,138 mm |
Champlain weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.6°C | −14.1°C | −9.9°C | 83 mm | 61 cm |
| February | −3.9°C | −13.1°C | −8.5°C | 66 mm | 53 cm |
| March | 1.2°C | −7.3°C | −3.1°C | 76 mm | 50 cm |
| April | 8.8°C | 0.3°C | 4.6°C | 87 mm | 14 cm |
| May | 17.3°C | 7.9°C | 12.6°C | 83 mm | under 1 cm |
| June | 22.5°C | 13.6°C | 18.1°C | 105 mm | 0 cm |
| July | 25.1°C | 16.7°C | 20.9°C | 125 mm | 0 cm |
| August | 24.1°C | 15.6°C | 19.9°C | 96 mm | 0 cm |
| September | 19.8°C | 11.0°C | 15.5°C | 97 mm | 0 cm |
| October | 12.2°C | 5.1°C | 8.5°C | 101 mm | 4 cm |
| November | 4.9°C | −1.3°C | 1.8°C | 88 mm | 24 cm |
| December | −2.0°C | −8.6°C | −5.3°C | 95 mm | 69 cm |
| Year | 10.4°C | 2.1°C | 6.2°C | 1,101 mm | 274 cm |
The month with the widest range: January, −32.3°C to 12.0°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 (±2.8°C around −9.9°C), June the one that wanders least (±1.0°C).
Where Champlain’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Trois-Rivières, 1991–2020.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- 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 Champlain’s climate
How warm does Champlain get in summer?
Expect highs near 25.1°C in July, the hottest month on average.
How cold does Champlain get in winter?
The year’s coldest nights belong to January, at about −14.1°C.
How much rain and snow does Champlain get?
Count on roughly 1,101 mm a year, heaviest in July (125 mm) and lightest in February (66 mm).
Are these figures for Champlain itself?
The figures are ECCC’s for Trois-Rivières; Champlain has no normals station.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Champlain →
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).