Note that frost dates are only an estimate based on historical climate data and are not set in stone.
Severe freeze: 24☏ (-4.4☌) and colder-heavy damage to most garden plants. Moderate freeze: 25° to 28☏ (-3.9° to -2.2☌)-widely destructive to most vegetation. Light freeze: 29° to 32☏ (-1.7° to 0☌)-tender plants are killed. The classification of freeze temperatures is based on their effect on plants: See 2024 Frost Dates for Your Location What are the 2024 Frost Dates?Ī frost date is the average date of the last light freeze in spring or the first light freeze in fall.