Projected Precipitation Change Percentages for 2081-2100

Projected relative changes in mean precipitation for the period 2081-2100 compared to a 1986-2005 baseline. The map data represents the median projection from an ensemble of CMIP5 climate models under the RCP8.5 scenario. It was produced by Environment and Climate Change Canada and was last updated in April 2026.

Use Cases

• Analyze spatial patterns of projected precipitation change percentages across geographic regions.
• Compare future precipitation scenarios against the 1986-2005 reference period baseline.
• Validate regional climate models using the median projection from the CMIP5 model ensemble.
• Assess hydrological risk under the RCP8.5 high-emissions scenario for infrastructure planning.

Strengths

• Based on the median projection from an ensemble of CMIP5 climate models.
• Provides a specific future time range (2081-2100) and reference period (1986-2005).
• Data is published by a national environmental authority (Environment and Climate Change Canada).

Limitations

• Data is only available in PDF format, limiting computational analysis.
• Projections are for a single emissions scenario (RCP8.5) and percentile (50th).
• The underlying spatial data resolution and row count are unknown.

Provenance

Source

Environment and Climate Change Canada.

Collection Method

Median projection derived from an ensemble of CMIP5 climate model outputs.

Time Range

Projection for 2081 2100, relative to a 1986 2005 baseline.

Freshness

Last updated in April 2026.

Geography

Spatial coverage is not explicitly stated but implied to include Canada.