Illinois averages about 55 tornadoes per year.
Illinois averages between 50 and 55 tornadoes per year.
The average number of tornadoes in Illinois are 27
On average there are about 57 tornadoes a year
There were 26 tornadoes in North Carolina in 2010.
There were 73 tornadoes in Illinois in 2011.
There were 52 tornadoes in Illinois in 2009.
There were 49 recorded tornadoes in Illinois in 2008.
There were 55 confirmed tornadoes in Illinois in 2000.
There were 48 recorded tornadoes in Illinois in 2010.
There were 31 recorded tornadoes in Illinois in 2012.
There were 48 recorded tornadoes in Illinois in 2010.
Illinois averages about 55 tornadoes per year.
In the years 2001-2011 there were 650 confirmed tornadoes in Illinois.
There were 949 recorded tornadoes in Illinois in the years 2000 to 2016.
Illinois averages between 50 and 55 tornadoes per year.
There were 1,103 tornadoes in the U.S. in 2006.