It is unknown. Most countries do not keep records of their tornadoes and the one with the best record keeping, the United States, has only been doing so since 1950. Even then a large number of weak tornadoes in the U.S. were missed. Since record keeping began in 1950 the U.S. has recorded over 56,000 tornadoes. The figure for actual tornadoes worldwide in the same period is probably in the hundreds of thousands.
no one will ever know because there was alot in prehistoric times
I think about 40,000-45,000
It is not known. For one thing, most countries do not keep records of their tornadoes, and even the United States, which keeps the best records, only has accurate record going back a few decades. Real numbers are not known, but in all likelihood there are several thousand tornadoes in the world each year. These have likely been occurring since Earth was cool enough for thunderstorms, which is a span of over 4 billion years. The activity has likely varied with the climate but we can probably say that, in its entire history, Earth has had several hundred billion to several trillion tornadoes.
4
the North Tower
There were 129 tornadoes in Texas in 2009.
A total of 9 tornadoes hit California in 2011.
33 F3 tornadoes have hit Florida since 1950.
There were 37 tornadoes in Nebraska in 2010.
There were 178 tornadoes in Texas in 2004.
There were 11 tornadoes in Indiana in 2009.
There were 39 tornadoes in Florida in 2011.
There were 30 tornadoes in Florida in 2015.
There were 16 tornadoes in Wisconsin in 2009.
an average of 20 tornadoes per year
There were 52 tornadoes in Illinois in 2009.
There were 78 tornadoes in Missouri in 2011.