The actual average number of tornadoes in the U.S. per year is closer to 1,300. About 27% of tornadoes in the U.S. are rated F1 (EF1 as of 2007), which works out to about 270 out of every 1,000 tornadoes or 350 out of every 1,300.
There have been many thousands of tornadoes in the United states. This country averages over 1000 tornadoes every year.
over a 1000 and a 1000 tornadoes are on average per year
anywhere between 1000 and 1800 tornadoes a year.
That is impossible to determine. The United States averages over 1000 tornadoes every year, many of them occurred before we started keeping records of them.
About 1000 on average
Approximately than 1000 tornadoes touch down in the United States each year on average.
1,200 a year in the U.S. on average. Worldwide figures are not known.
The United States.
1000 per year
No town gets hit by tornadoes on an annual basis. Moore has been hit by 12 recorded tornadoes since 1950.
1000 on average per year
There are about 33 a year on average. 2011 has been abnormally active.