First Frost Date 2024. Make it easier to plan your garden by looking at these estimates of the first and last frost dates for your region of the country. Knowing the first and last dates of your area's frost helps you plant at the right time.
Our frost date calculator will tell you precisely when your garden in ottawa, on is at risk for frost. Use our 2024 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.