Depends on where you are, whether you want to know how many tornadoes have hit the United States, or a single state, or even somewhere else.
All states have had tornadoes in the past 50 years.
Texas by far has had the highest number of tornadoes in the past 50 years.
There were 129 tornadoes in Texas in 2009.
As of mid December 2013 there have been 12,800 officially documented tornadoes in the United States in the past 10 years. Note that figures for several months in 2013 are still preliminary.
A total of 9 tornadoes hit California in 2011.
In the past 5 years (2010-2014) tornadoes have hit every state except Alaska.
It can. Chicago has been hit by tornadoes in the past. It has simply been a matter of chance that the city has not taken a major direct hit in recent dacades.
33 F3 tornadoes have hit Florida since 1950.
Every year about 300 recorded tornadoes hit Europe, There were some F5 in the past in Germany,France, Italy, Poland, Netherlands and Russia. The last possible F5 occured in 1984 in Russia, hitting the city of Ivanovo.
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.