30-year Average First Fall Frost (-4 °C)

Name: 30-year Average First Fall Frost (-4 °C)
Creator: Agriculture and Agri-Food Canada
License: https://open.canada.ca/en/open-government-licence-canada

First Fall Frost (-4 °C) is defined as the average day, during the second half of the year, of the first occurrence of a minimum temperature at or below -4 °C. These values are calculated across Canada in 10x10 km cells.