Why does Ontario not get Tornadoes?

Actually there are tornadoes in Ontario. Some as strong as F4. In 2009 an F2 tornado hit the Toronto area. On May 31, 1985 13 tornadoes touched down in Ontario, including anf F4 that Devastated Barrie, north of Toronto, killing 8 people. Tornadoes are not particularly common in Ontario because its relatively cool climate limits the intensity of thunderstorms, and upper-level wind patterns generally favor types of storm less likely to produce tornadoes.