• April 30, 1942: Three farms were hit by a tornado near the Northeastern edge of Castlewood. One barn was blown apart and debris was blown into the house, killing one person. Damage was estimated at $20,000. Tornado strength was estimated to be an F2.
• 1054: The earliest tornado reported in Europe occurred on this day. It was in Rosdalla, Ireland.
• 1852: A significant tornado outbreak spread across Illinois, Indiana, and Kentucky. One tornado touched down near Paducah, KY, crossed into Illinois, and then crossed back into Kentucky, ending near Carrsville. Another tornado struck just south of New Harmony, IN and was said to have felled trees at a rate of 7,000 per minute.
• 1888: During a hailstorm in Moradabad, India baseball-sized hailstones killed over 230 people and more than 1600 animals.
• 1924: A large tornado outbreak struck a five-state region from Alabama to Virginia. One tornado family was on the ground for 105 miles and caused up to F4 damage from Aiken County to Darlington County in south-central South Carolina.

Though no large towns were hit, 53 lives were still taken from rural communities by that tornado family.
• 1989: This day ended the first April in Oklahoma City's history during which no thunderstorms occurred.
• 2011: There were 753 tornadoes in the U.S. in April 2011, the most ever recorded in a month (beating the old record by 211).
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