More than half the region’s water (up to 85% in some places) comes from underground aquifers. These aquifers rely on winter rainfall to fill them up to meet demands for water in spring and summer. But climate change is having a huge impact on rainfall patterns – including how much rain we receive and when and where it falls.
Rainfall patterns vary every year, with some falling below long-term averages. February 2020 was the wettest on record, however July 2022 was the driest for almost 70 years. This variability makes it harder to plan a long time ahead with certainty of what the future holds.