While we normally associate severe weather, especially tornadoes, with springtime, we usually have a secondary peak of severe weather activity in the fall.
|This chart shows us the number of "tornado days" that have occurred in each month during the entire period of record (back to 1830). A tornado day is a calendar day during which at least one tornado occurred somewhere in southern Indiana or central Kentucky. As you can see, most tornado days occur in the spring, but there is a secondary peak in the fall.|
|Same as above, but for F0/EF0 tornado days. F0/EF0 tornado activity peaks in June, but also rises slightly in the fall.|
|Same as above, but for F1/EF1 tornado days. EF1 tornado activity peaks in April and November.|
|Same as above, but for F2/EF2 tornado days. Once again we see peaks in the spring and fall.|
|Same as above, but for F3/EF3 tornado days. A similar pattern exists.|