Toronto’s Earliest November Snowfall in Decades Sets 2025 Record
Southern Ontario experienced an early winter storm over the weekend, bringing significant snow to Toronto and the Greater Toronto Area (GTA) on November 9-10, 2025.
Snowfall Details
- Most of Toronto recorded over 5 cm of snow by Monday morning.
- This was the earliest such snowfall recorded at Pearson International Airport since October 22, 1969.
- The storm dropped between 2 and 10 cm of snow across southern Ontario.
- Downtown Toronto saw lighter snowfall compared to northern areas of the GTA.
Historical Context
The last November snowfall with double-digit accumulation occurred on November 30, 1987, when over 12 cm fell on the city.
Environment Canada warned of widespread snowfall stretching from London to Ottawa in a special weather statement prior to the storm.
Typically, Toronto’s first significant snowfall happens much later in the season. Long-term climate data shows:
- The average first 5 cm snowfall at Pearson Airport arrives on December 12.
- The median date for the first 10 cm total is in December.
While November snowfalls in Toronto are not unprecedented, heavy accumulations this early are uncommon.
Author’s summary: Toronto’s 2025 early November snowfall broke a decades-old record, with significant accumulations arriving weeks ahead of the usual winter season.