Canada - Frost-Free Period

Name: Canada - Frost-Free Period
Creator: Natural Resources Canada
License: https://open.canada.ca/en/open-government-licence-canada

Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a map that shows the average length of the frost-free period for all parts of Canada. Data for period 1941 to 1970. Companion sheet to Heating Degree-Days, Growing Degree-Days, Last Frost in Spring and First Frost in Autumn.