As of October 2010, the highest temperature ever recorded in Indianapolis was 106 degrees Fahrenheit on July 14, 1936. The lowest temperature ever recorded in Indianapolis was minus 27 degrees Fahrenheit on January 19, 1994.
On January 12, 1916, Indianapolis experienced both a high temperature of 68 degrees Fahrenheit and a low temperature of 10 degrees Fahrenheit. This represents the greatest single day temperature fluctuation in the city's history, as of October 2010.
As of October 2010, the earliest first freeze date that Indianapolis has experienced was September 30. This occurred in 1899 and in 1994. The latest last freeze date in the city was May 27. This occurred in 1961.