Amii Lynsey

First Frost 2024 Southern Ontario 2024. There is a 50% chance of being hit by a 32° frost starting around october 5. We've created average first frost dates, average last frost dates and average.

Keep those snow shovels and umbrellas on standby, because ontario can expect a somewhat chaotic spring in 2024 marked by what the farmers’ almanac calls. Northern ontario will typically see the last frost around the first to second week of june.