Frost

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of five maps. Two maps show, for fertile regions, the average date of the last frost in spring and the average date of the first frost in autumn. The three remaining maps show the median depth of snow cover at a scale of 1:35 000 000 for all of Canada in inches for the dates September 30th, October 31st and November 30th.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 21:50 (UTC)
Created April 17, 2026, 21:50 (UTC)
contact_email geoinfo@nrcan.gc.ca
contact_person {}
criticality_level []
data_dictionary ["environment"]
geographic_scope []
open_canada_collection geogratis
open_canada_date_published 1969-01-08 00:00:00
open_canada_keywords {"fr": ["climat", "données météorologiques", "météorologie", "neige", "précipitation", "temps - météorologie"], "en": ["climate", "meteorological data", "meteorology", "precipitation", "snow", "weather"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Gelée
update_frequency as_needed