First Frost Date 2024 Toronto. See each plant's individual growing guide for. A frost date is the average date of the last light freeze in spring or the first light freeze in fall.

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. Our frost date calculator will tell you precisely when your garden in ottawa, on is at risk for frost.