It is difficult to say how many there were exactly. Officially there were 945 recorded, but the real number is likely much higher.
At that time we missed a large portion of the weaker tornadoes, those that would be rated F0 or F1, and the majority of tornadoes fall into these categories..
The U.S. averages about 1200 tornadoes per year.
There were 1692 confirmed tornadoes in the U.S. in 2011.
There have been many thousands of tornadoes in the United states. This country averages over 1000 tornadoes every year.
The year with the most violent tornadoes on record was 1974, with a total of 36 tornadoes rated as violent.
The number varies from one year to the next, but on average the U.S. gets between 1,200 and 1,300 tornadoes per year.
The United States averages about 1,200 tornadoes each year, some years have more and some have less.
The U.S. has between 1,200 and 1,300 tornadoes in an average year.
On average there are about 1,200 tornado a year in the U.S.
About 30 tornadoes per year.
The greatest number of deadly tornadoes in the U.S. struck in 1974. That year there were 79 killer tornadoes in the U.S. which resulted in 366 deaths. The deadliest year for tornadoes, however, was 1925 with 794 people killed by tornadoes. 695 of these were from one tornado, the deadliest in U.S. history.
about 80 tornadoes each year
Australia has about 80 tornadoes every year.