Toronto 
A powerful winter storm swept across southern Ontario on Sunday, leaving behind record-breaking snowfall, dangerous travel conditions, and widespread disruptions.
According to a weather summary issued early Monday by Environment Canada, the storm combined heavy snow with gusty winds, at times reducing visibility to near-whiteout levels.
One of the most notable outcomes was recorded at Toronto Pearson Airport. The airport measured 46 centimetres of snow on Sunday alone, marking the highest single-day snowfall ever recorded at the site. That pushed January 2026’s total snowfall to 88.2 centimetres, making it both the snowiest January and the snowiest month on record since tracking began in 1937.
Snow totals varied across southern Ontario. Toronto City Centre reported 56 centimetres, while Trenton received 42 centimetres and Belleville recorded 34. The Ontario Storm Prediction Centre in Downsview measured 32 centimetres by late Sunday afternoon. Other totals included 20 centimetres in Vineland, 17 in London and Uxbridge, 15 in Kingston, and 10 in both Peterborough and Ottawa.
Additional reports from volunteers and social media suggested wide ranges in snowfall by late Sunday evening. Mississauga and Milton reported 30 to 46, while Burlington ranged from 15 to 30 centimetres.
The system, driven by a strong low-pressure area passing south of the Great Lakes, had major impacts on transportation across the region. Roads became hazardous as blowing snow and near-zero visibility made driving difficult through Sunday and into the night. As a result, many schools across the Greater Toronto Area and extending into the Waterloo Region were closed on Monday.
Environment Canada notes that some of these figures are preliminary and may be revised as more data becomes available.
These figures are considered preliminary and may be updated as additional data is reviewed.
