Winter service in Montreal

How Montreal sits, and what winter does here

Montreal sits on the Île de Montréal, an island where the Saint Lawrence and Ottawa rivers meet, with Mount Royal — the small mountain the city is named for — rising 232 m right in the middle of it. It is Canada’s second-largest metropolitan area, about 1.76 million people on the island and more than four million across the region, packed into dense, street-parked neighbourhoods. That density is the single fact that shapes its winter more than any other.

The snow itself is serious: an average of about 217 cm a year, measured against Environment and Climate Change Canada’s 1991–2020 normals at Trudeau airport — among the snowiest of any big city in North America, and well above the figures some weather portals quote. Snow falls on roughly 58 days, lies on the ground on about 104, and the season runs from November into April with its weight in December, January and February. January is the coldest month, with a daily mean near −10 °C, nights regularly below −15 °C, and a record low of −37.8 °C. This is a long, cold, genuinely snowy winter — closer in sheer volume to Quebec City downriver than to anything in southern Ontario.

What makes Montreal distinctive is not just how much falls but what the city does with it. On narrow streets lined bumper-to-bumper with parked cars, there is simply nowhere to bank 217 cm of snow — so Montreal does something most of North America does not: after plowing, it hauls the snow away.

How the system works

Snow clearing in Montreal is the City’s job to a degree that surprises newcomers. Through its boroughs, the City clears public streets and public sidewalks itself; what stays with a property owner is only their own private ground — the walkway to the door, the steps and the driveway — and owners are asked not to push that snow back onto the street or sidewalk.

The work comes in stages tied to how much has fallen. Crews salt and grit as surfaces turn slippery, plow once there is 2.5 cm of snow on the ground, and begin loading — the haul-away operation — once 10 to 15 cm has built up. Streets are handled in three priority tiers: major thoroughfares, bus routes and access to hospitals and schools first; collector and local shopping streets next; residential and industrial streets last.

The loading phase is the one residents feel directly, because it needs the street emptied of parked cars. Before crews arrive, temporary “no parking” signs go up — many Montrealers call them the orange signs. For an overnight ban (7 p.m. to 7 a.m.) they appear by 3 p.m. the same day; for a daytime ban (7 a.m. to 7 p.m.), by 8 p.m. the day before. These temporary signs take priority over permanent ones, so a spot that is normally legal can be off-limits that night. According to the City, a car left in place “will be towed and you will be fined” — usually moved a short distance to a cleared street rather than impounded, but you still have to go and find it. The 311 Montréal app tracks operations in real time and can send a reminder to move the car.

One more thing shapes the experience: clearing is run borough by borough. Each of Montreal’s 19 boroughs manages its own operation, with its own blend of city crews and contractors, so timing varies across town. Since 2016, common rules require removal to begin within 12 hours of a snowfall and major roads to be cleared within 36 hours — but a residential street in one borough may still be done noticeably sooner or later than a similar street in the next.

These are the City of Montreal’s own policies, and the detail can change season to season — the official pages linked below carry the current version. None of this is legal advice.

On the ground: where it gets tricky

The haul-away operation is the heart of winter service here, and it is genuinely large: roughly 300,000 truckloads a season move snow to 11 surface dumps and 15 sewer chutes, with the former quarry at Francon alone taking around 40% of it. Running a fleet that size across a snowy four-month season is as much a logistics problem as a clearing one — which is exactly where a clear record of when and where each route was cleared, and where the trucks went, earns its keep.

A few local features add to the job. The bridges over the Saint Lawrence — Champlain, Jacques-Cartier and the rest — cool from above and below and tend to ice before the approaches, a predictable hazard for commuters. The slopes around Mount Royal add gradient. And the spring thaw in March and April brings its own cycle of meltwater, slush and re-freezing as temperatures cross zero day after day — worth tracking against the weather over a long season.

Around Montreal

Montreal’s rules stop at the island’s edge — and, in places, well inside it. Off the island, Laval lies to the north across the Rivière des Prairies, and Longueuil, Saint-Lambert and Brossard to the south across the Saint Lawrence; each is its own city with its own winter clearing. On the island itself, several municipalities are enclaves entirely surrounded by Montreal — Westmount, Côte-Saint-Luc, Montréal-Ouest, Hampstead and the Town of Mount Royal — and they run their own operations too. Crossing a bridge or even a borough boundary can mean different signs, different timing and different rules, so anyone working across the region is better off checking each one than assuming Montreal’s system carries over.