Toronto's Earliest November Snowfall in Decades Sets 2025 Record
Southern Ontario was covered in snow over the weekend, as a rare early-season storm brought winter weather to Toronto and the Greater Toronto Area (GTA) on November 9–10, 2025.
Unusual Early Snow Accumulation
By Monday morning, most of Toronto had recorded over five centimetres of snow, marking the earliest such snowfall accumulation at Pearson International Airport since October 22, 1969, according to weather data.
Snowfall Levels Across the Region
- The storm dropped between 2 and 10 cm of snow throughout southern Ontario.
- Toronto’s downtown area experienced lighter snowfall compared to the northern GTA.
Official Weather Warnings
Environment Canada issued a special weather statement warning of widespread snowfall across southern Ontario, stretching from London to Ottawa.
Historical Context
- The last time Toronto saw double-digit snowfall in November was on November 30, 1987, when over 12 cm fell citywide.
- Typically, Toronto’s first major snowfall occurs much later, with the average 5 cm accumulation at Pearson on December 12 and the median first 10 cm on December 15.
- While November snowfalls are known in Toronto, heavy accumulations remain unusual.
Summary
The 2025 early November snowfall is one of the most significant early-season snow events in Toronto in over half a century, marking a notable deviation from typical seasonal patterns.