There were 129 tornadoes in Texas in 2009.
A total of 9 tornadoes hit California in 2011.
Yes tornadoes can and have happened everywhere in Canada and the U.S. Basically anywhere in California can be hit even if it is rare.
There have been many F4 and EF4 tornadoes. Tornadoes of this intensity have been known to hit the U.S., Canada, Mexico, The UK, Germany and are believed to have struck a number of others. The link below shows the locations of F4 and EF4 tornadoes in the U.S. from 1950 through 2010.
33 F3 tornadoes have hit Florida since 1950.
about 80 tornadoes each year
Tornadoes can occur virtually anywhere in North American except, perhaps, the northernmost reaches of Canada and Alaska.
Typically most Atlantic hurricanes hit the United States before they move to the coastal regions of Canada. There have been 19 hurricanes that hit Canada in history.
That there were 49 tornadoes in Virginia in 2011.
There were 75 tornadoes in Arkansas in 2011.
There were no recorded tornadoes in California in 2003.
There were 52 tornadoes in Illinois in 2009.