First Frost Date 2024 Usa

First Frost Date 2024 Usa. A frost date is the average date of the last light freeze in spring or the first light freeze in fall. As outlined extensively in the data presented below, the first fall frost/freeze dates can vary tremendously from one year to the next, and just within the past 30 years, first freezes (32°.

The map divides the united states into cold hardiness zones based on average annual minimum temperatures. Want to know when to expect your last frost of the spring, or the first frost of the fall?