May Indiana Tornado Stats

Preliminary tornado statistics for May 2011 reveal there were 24 tornadoes across Indiana...7 of which occured across Central Indiana...all on May 25th. The average annual number of tornadoes across Indiana from 1950-2010 is 23.4 and the average for May is 3.8. For comparison...an average of 4.9 occur in April...and June has the highest monthly average of 5.4. So 14.1 out of the annual average of 23.4 occur from the months of April through June. The month of June also contains the largest single month of any month for tornadoes which was 1990 when 63 occured. The following are some of the other big months and number of tornadoes:

1 - June 1990 -  63
2 - April 1974 -   57
3 - May 2004 -    31
4 - April 1965 -   30
5 - June 1973  - 30

Finally, here are the average annual tornadoes across Indiana by decade:

2000's - 26.9
1990's - 27.1
1980's - 15.7
1970's - 27.9
1960's - 24.9
1950's - 17.2



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