Canada had fewer tornadoes in 2025 than average, with 64 nationwide and 19 in Ontario, possibly due to high pressure and smoke.

In 2025, Canada and Ontario saw a significant decrease in tornado activity, with 19 confirmed tornadoes in Ontario and 64 nationwide, well below recent years and the 30-year average. The first tornado was recorded on April 12 in Alberta. Experts suggest high-pressure systems and forest fire smoke may have contributed to the decline, though David Sillis of the Northern Tornadoes Project expects more tornadoes to be confirmed as satellite data from remote boreal regions is reviewed.