Canadian Gridded Temperature Anomalies

Canadian Gridded Temperature Anomalies is an open dataset from Environment and Climate Change Canada with 9 files (HTML, PDF); catalogue record updated 2026-09-01. On CanQuery you can follow the original downloads. Files are available in English and French.

Gridded monthly, seasonal and annual mean temperature anomalies derived from daily minimum, maximum and mean surface air temperatures (degrees Celsius) is available at a 50km resolution across Canada. The Canadian gridded data (CANGRD) are interpolated from homogenized temperature (i.e., AHCCD datasets). Homogenized temperatures incorporate adjustments to the original station data to account for discontinuities from non-climatic factors, such as instrument changes or station relocation. The anomalies are the difference between the temperature for a given year or season and a baseline value (defined as the average over 1961-1990 as the reference period). The yearly and seasonal temperature anomalies were computed for the years 1948 to 2017. The data will continue to be updated every year.

Publisher

Environment and Climate Change Canada

Resources

9

Catalogue metadata updated

2026-09-01