Canadian Gridded Precipitation Anomalies

Canadian Gridded Precipitation Anomalies is an open dataset from Environment and Climate Change Canada with 15 files (HTML, PDF, WCS, WMS); 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 anomalies derived from daily total precipitation is available at a 50km resolution across Canada. The Canadian gridded data (CANGRD) are interpolated from adjusted precipitation (i.e., AHCCD datasets). Adjusted precipitation data 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 percentage difference between the value 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 relative precipitation anomalies were computed for the years 1948 to 2014. The data will be updated as time permits.

Publisher

Environment and Climate Change Canada

Resources

15

Catalogue metadata updated

2026-09-01