TORONTO — A powerful winter storm delivered historic snowfall to the Greater Toronto Area on Sunday, setting a new daily snowfall record at Toronto Pearson International Airport, according to federal weather officials.
A large and intense low-pressure system moved across southern Ontario, dumping heavy snow throughout the region. In its early Monday weather summary, Environment and Climate Change Canada confirmed that Pearson Airport recorded 46 centimetres of snow on Sunday — the highest single-day snowfall total ever measured at the airport.
“This is the highest daily total snowfall on record,” the agency said.
Snowiest January on record
The latest storm has pushed Pearson’s January 2026 snowfall total to 88.2 centimetres, making it the snowiest January — and the snowiest month overall — since record-keeping began in 1937, according to Environment Canada.
The storm’s impact was felt well beyond the airport, with heavy accumulation reported across much of the GTA and southern Ontario.
Flight disruptions continue
Travel disruptions mounted as snowfall intensified. Flight-tracking website FlightAware reported that more than 500 flights were cancelled at Pearson on Sunday alone.
Airport officials warned that additional cancellations and delays were expected on Monday as crews continued snow-clearing operations. Updates were shared through Pearson’s official social media channels.
Snowfall totals across Ontario
As of 5 a.m. Monday, the following snowfall totals (in centimetres) were reported:
- Toronto City Centre: 56
- Toronto Pearson Airport: 46
- Trenton: 42
- Belleville: 34
- Downsview (Ontario Storm Prediction Centre): 32
- Vineland: 20
- London: 17
- Uxbridge: 17
- Kingston: 15
- Harrow: 14
- Peterborough: 11
- Delhi: 10
- Ottawa: 10
- Brockville: 7
- Egbert: 5
- Moose Creek Wells: 4
Additional reports from volunteers and social media as of 10 p.m. Sunday indicated wide variation across the region:
- Toronto: 40 to 60
- Mississauga–Milton: 30 to 46
- Waterdown: 30
- Brampton: 18
- Burlington: 15 to 30
- Kitchener (Stanley Park): 10 to 15
More winter impacts expected
With cleanup still underway and temperatures remaining cold, officials warned that travel disruptions and hazardous conditions could persist into the week.
Environment Canada continues to monitor conditions as the region digs out from one of the most significant snow events in decades.