Last Frost Date 2025 By Zip Code Indiana. Use our 2025 frost dates calculator to find the average dates of the last light freeze of spring and the first light freeze of fall for locations across the u.s. Use this mapping tool to find the average of first and last frost date in your city or state by zip code to make sure you start your garden at the right time, not too early, not too late.

Enter your zip or postal. We have dates for both, listed state by state.