Last Frost Date 2025 Toronto. The historical weather data, forecast and current conditions graphics are courtesy of environment and climate change canada. Frost dates are arranged by region and include the first frost date of the season and the final frost date of the season.
You may plant any time from the start seeds dates until this last date. don’t wait any longer, or the crop won’t have time to get to harvest before fall/winter. Canadian gardeners need to know when the growing season in their area begins and ends so they can avoid losing plants to frost.