The following maps are based on temperature readings taken at sites scattered throughout south central Indiana and central Kentucky between 1971 and 2000.

Average date of the last 36 degree temperature in the spring

Average date of the last 32 degree temperature in the spring

Average date of the first 36 degree temperature in autumn

Average date of the first 32 degree temperature in autumn

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.