Winter Storm Warning Climatology for Trois-Rivières, Quebec
Trois-Rivières sits in the St. Lawrence River valley between Montreal and Quebec City, a corridor well known for significant winter accumulations. Analyzing 13 years of data from 2012 through 2024, the city averages 170.5 cm (67.1 inches) of snowfall annually — a substantial seasonal burden that shapes how residents and forecasters alike approach winter preparedness. The heaviest snow tends to arrive in January, February, and December, when cold Arctic air masses interact with moisture streaming up the St. Lawrence valley to produce prolonged and sometimes intense snowfall events.
On average, Trois-Rivières sees roughly 0.8 heavy-snow days per year — meaning significant single-event accumulations remain relatively infrequent, even in a snowbelt city. Winter overnight lows average -12.6°C (9.3°F), cold enough that any falling snow stays dry and can drift considerably in wind, compounding travel hazards beyond raw accumulation totals.
A winter storm warning issued for Trois-Rivières signals that forecasters expect snowfall intense or prolonged enough to seriously disrupt travel and daily activity. It is worth noting that warning thresholds are not uniform — Environment and Climate Change Canada calibrates them regionally, so the accumulation required to trigger a warning here may differ from thresholds used in milder or more snow-prone parts of the country.
| Years analyzed | 13 winters (2012–2024) |
|---|---|
| Avg. annual snowfall | 170.5 cm (67.1 in) |
| Snowiest months | January, February, December |
| Avg. winter overnight low | −12.6°C (9.3°F) |
| Heavy-snow days per year | 0.8 |
Climatology figures are approximate estimates for the period shown and may differ from official local records.
Watch vs warning: a winter storm watch means a major storm is possible in Trois-Rivieres within 12–48 hours (be prepared); a winter storm warning means it is happening or about to (take action now). For full definitions, see the complete winter storm warning guide.
Trois-Rivieres winter storm FAQ
Is there a winter storm warning in Trois-Rivieres right now?
The live status at the top of this page shows whether a winter storm warning, watch, or advisory is currently in effect for Trois-Rivieres, Quebec. It checks live forecast and alert data automatically and refreshes every time the page loads.
Does Trois-Rivieres get winter storm warnings often?
Trois-Rivieres sees heavy snow routinely, and winter storm warnings are a regular feature of its winters. The frequency varies year to year with the track of major storm systems.
How much snow triggers a winter storm warning in Trois-Rivieres?
Environment and Climate Change Canada (ECCC) issues winter warnings on criteria that vary by region and expected impact: how much snow or ice is forecast, over what period, and how disruptive it is likely to be for the area. There is no single fixed snow total.
What should I do during a winter storm warning in Trois-Rivieres?
Avoid travel if possible, stay indoors and keep warm, prepare for power outages, keep an emergency kit, and check on elderly or vulnerable neighbours. Follow guidance from Quebec authorities and Environment and Climate Change Canada (ECCC).
Winter storm warnings in nearby locations
- Winter storm warning in Sherbrooke, QC
- Winter storm warning in Montreal, QC
- Winter storm warning in Quebec City, QC
- Winter storm warning in Saguenay, QC
- Winter storm warning in Gatineau, QC
- Winter storm warning in Ottawa, ON
See all locations, read the latest winter weather news, or the full winter storm warning guide. Definitions follow Environment and Climate Change Canada (ECCC) criteria; thresholds vary by region.