
These were Canada’s ‘most significant’ weather events, from floods to fires
Global News
The list was chosen based on the scale of the devastation, the number of Canadians affected and the financial toll, with wildfires taking the top spot.
Researchers at Environment and Climate Change Canada on Thursday released their list of Canada’s top 10 weather events of 2025, highlighting a year defined by costly weather extremes.
The list was chosen based on the scale of the devastation, the number of Canadians affected and the financial toll, and saw 2025 mark the second-worst year in Canadian history for wildfires.
It paints a picture of charred landscapes, debris piles where homes once stood, fields underwater and decimated by baseball-sized hail, scorching heat and relentless storms.
The destructive wildfire season took the top spot, while the drought took the second spot and the powerful thunderstorms that hit central and eastern Ontario took third place.
Officials ranked the full top 10 list as:
Canada’s most extreme weather events are becoming more commonplace and expensive, and recent disasters have seen insurance claims and rebuilding costs climb.
“Extreme weather events are getting more expensive in just about every way,” said Ryan Ness, director of adaptation at the Canadian Climate Institute.
It’s not only the immediate cost of emergency response and repairs but also “the knock-on effects on reduced business profits and slower economic growth,” Ness said.













