What percentage of the world's tornadoes occur in the US?
About 75% of recorded tornadoes strike the United States. This is misleading however, as many countries do not keep records of their tornadoes. The actual number of tornadoes outside the U.S. is not known.
About 25% of reocrded tornadoes take place outside the United States. However, the actual percentage is probably much higher. The United States is one of only a few countries that keeps detailed tornado records. As a result, there a likely hundreds, possibly thousands of tornadoes that occur every year outside the U.S. that are never recorded.
75 percent of recorded tornadoes happen in the U.S. The U.S. probably has a much smaller percentage of the world's actual tornado count. This is because the U.S. keeps detailed records on the tornadoes that occur within its borders. Many other countries do not keep such records, and often only the most significant tornadoes are reported.
Tornadoes occur in many areas around the world by no region experiences more tornadoes than the central United States. No one really knows for sure how many there are in the US each year, but it is estimated that over 1,000 tornadoes occur each year in the US, although many go undetected and unreported.