Historically, April has been the deadliest month on average. However, whichever month is deadliest can vary from on year to the next.
In 2011 there were 552 tornado fatalities in the United States, tying it as the second deadliest tornado year in U.S. history.
The deadliest tornado in this tornado season (2011) hit Joplin, Missouri on May 22, killing 158 people. The last deadly tornado this year hit Springfield, Massachusetts on June 1, killing 3.
The deadliest tornado in Michigan History was the Flint, Michigan F5 tornado. It hit on June 8, 1953, killing 115. It was also the tenth deadliest tornado in U.S. history.
1989 when a single tornado in Bangladesh killed over 1,300 people. The deadliest tornado year in the U.S. was 1925 when a single tornado killed 695 people.
The deadliest tornado in Bangladesh, in fact the deadliest in the world, was the Daulatpur-Saturia tornado of April 26, 1989. This tornado tore through cities in the Dhaka district, killing 1,300 people.
The deadliest tornado to hit the state of Wisconsin was the New Richmond, Wisconsin tornado of June 12, 1899 with 117 deaths. It also ranks as the 9th deadliest tornado in U.S. history.
The deadliest category of tornado is F5. They have the highest death rate per storm.
The deadliest Kansas tornado on record was the Udall, Kansas F5 tornado of May 25, 1955 with 80 deaths.
The deadliest tornado in the U.S. in 2011 was the Joplin, Missouri tornado of May 22. The death toll from this tornado stands at 157 marking it as the 7th deadliest tornado in U.S. history and the deadliest in the country since 1947.
The deadliest tornado ever recorded was in Sandwip island of the coast of Bangladesh in1989.
The deadliest tornado in recorded history was the Daulatpur-Saturia, Bangladesh tornado of April 26, 1989, which killed an estimated 1300 people.