Last Frost Date By Zip 2025. To make it easier to plan your garden, the regions on this map will help you estimate the first date of frost in the fall and the last date of frost in the spring for your region. If using the national gardening association tool, the most reliable “safe zone” date will be in the.
Finding your last frost date is as simple as typing your zip code into a calculator. A frost date is the average date of the last light freeze in spring or the first light freeze in fall.
