August 25
- 1814 – A tornado, possibly spawned by a hurricane, hit Washington D.C. during the burning of Washington, lifting cannons and likely killing British troops. This tornado, and the storm that produced it, may have contributed to the British retreat.
- 1948 – A tornado moved through Frankton and Hamilton, New Zealand, killing three people and injuring 80. About 150 buildings were damaged or destroyed. This was the costliest tornado on record in New Zealand and is tied with the 2012 Aukland tornado as the country's deadliest.