Melbourne: Key findings

For the water account period 1 July 2020–30 June 2021

  • Total annual rainfall was above average for the second consecutive year.
  • End-of-year storage was 75% full compared to 66% full the previous year.
  • Water taken for consumptive water use was 481 GL, around 3% less than last year.

Climate and water


Rainfall icon

867 mm

above the average of 861 mm


Streamflow icon

above average

for most of the year


Storage icon

75% full


17% more than last year

Water use

Water sourced

Graph showing breakdown of water sources used in the Melbourne region. A total of 481 GL of water was used in the region in 2020–21. Surface water made up 70% of total water sourced. Desalinated water made up 26% and groundwater 4% of the water sourced.

Water supplied

Graph showing breakdown of water users in the Melbourne region. A total of 481 GL of water was supplied to users in 2020–21. Less than 92% of total water supply was for the urban system. 8% was for individual users and less than1% was for inter-region supply.

Water status


950 GL

total surface water and groundwater allocations

Water availability

2,697 GL

surface water available in 2020–21


9% more than average



in storage expected during the 2021–22 year