Photo: Quintin Soloviev · CC BY 4.0More snow falls on Trois-Rivières than on 90% of Canadian towns: about 274 cm a year
The warmest part of a July day comes in at 25.1°C on average. From frozen January to warm July, readings climb 39°C. Its yearly rain and snow top those of 80% of Canadian towns. Ice scrapers and block heaters earn their keep on roughly 145 days a year at 0°C or below.
Environment and Climate Change Canada’s 1991–2020 normals at its Trois-Rivières station, 4.5 km east.
A year in Trois-Rivières at a glance
Each month’s typical high and low, in °C.
What stands out about Trois-Rivières’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Trois-Rivières feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
145 frost days and 104 days above 20°C a year
From October to April frost is routine, and in January it comes on almost every night. Some 15 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
1,101 mm of precipitation in a typical year
July brings the most rain and snow; February, the least. About 132 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 274 cm of snow a year
Expect snow from October to April, with about 69 cm in December, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Trois-Rivières
93% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total.
Living with Trois-Rivières’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul, Aug and Sep.
Parks & trails →A wind chill below −20 is part of about 42 days a year here.
Expect around 37 sticky days a year with the humidex above 30.
A normal year has no blizzard, flood or heat wave in it; Trois-Rivières’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: Trois-Rivières
Behind the 1991–2020 normals for Trois-Rivières are 2 stations, which ECCC combines into one record.
| Distance from the town | 4.5 km east |
| 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 | Nicolet, 18 km |
How Trois-Rivières 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 Trois-Rivières’s own would show the same figures). Distances here run 14–30 km: that is how far the nearest places with figures are from Trois-Rivières.
Trois-Rivières 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 | −5.6°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 |
January has run from −32.3°C to 12.0°C in thirty years
From one year to the next, January’s average typically shifts by 2.8°C around its normal of −9.9°C, the widest of any month, while June’s shifts by 1.0°C.
Where Trois-Rivières’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Trois-Rivières, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: the 2,500-plus towns and neighbourhoods of Canada, each read from its closest normals location; whole cities and reserves aren’t counted.
- 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 Trois-Rivières’s climate
How warm does Trois-Rivières get in summer?
In July, the warmest month, the typical high is 25.1°C.
How cold does Trois-Rivières get in winter?
The year’s coldest nights belong to January, at about −14.1°C.
How much rain and snow does Trois-Rivières get?
July is the wettest month at 125 mm and February the driest at 66 mm, for 1,101 mm over the year.
Are these figures for Trois-Rivières itself?
Almost: ECCC’s Trois-Rivières location, which gives these figures, lies a short way outside Trois-Rivières.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Trois-Rivières →
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).