Time series of rainfall in south-west Western Australia between May to July and between August to October. CSIRO

Time series of rainfall in southwest Western Australia between May to July and between August to October. South-west Western Australia has experienced significant climate change since the mid-1970s which has impacted on surface water and groundwater yields, and water dependent ecosystems. Over central and northern parts of the project area, the mean annual rainfall has been lower in the recent past than in the historical past.

Water yields and demands in south-west Western Australia [pdf]