First Day Of Frost 2024 Canada. A frost date is the average date of the last light freeze in spring or the first light freeze in fall. This simply means a period of time where you can safely set your plants out in your garden ensuring them with optimal.

As your growing season comes to an end, the nightly temperatures for toronto, on start to go down, and therefore every day that goes by increases the chance that you’ll get frost. It’s not 80° any longer.