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Table showing target and actual water use, dam levels, streamflow and rainfall
  Target Actual
February water use to date 29 billion litres 29 billion litres
Dam storage levels NA 44%
Weekly streamflow into dams NA 44 billion litres
February rainfall to date 13.0mm (Feb average rainfall 1994-2017) 32.20mm
Note: 1 billion litres = approximately 400 Olympic swimming pools. Please note the figures in this table are rounded (except for rainfall) to the nearest whole number.

Water use

Average water use over the past week was 938 million litres per day, which was below the forecast of 1,005 million litres.

Daily water use for the last 5 days

Table showing daily water use for the last 5 days
Date Actual water use (million litres) Forecast water use (million litres)
28/02/2020 840 997
27/02/2020 791 997
26/03/2020 947 997
25/02/2020 996 997
24/02/2020 Data not available Data not available
Note, water use is calculated up to 8am each day for the previous 24 hour period.

Since 1 July 2019, we have used 201.6 billion litres of water – which is around 5.9 billion litres over the forecast for this period

Dam level (total for 15 dams)

The dam storage levels have dropped slightly this week and are sitting at a combined 44.1 per cent* of full capacity.

*Please note some dams are filled from different sources - dam levels include the transfer of groundwater and desalinated seawater from treatment plants as well as streamflow (that comes from rainfall). As we use many different sources of water, dams are no longer an accurate indicator of the health of Perth's overall water supply situation.

Streamflow (total for 15 dams)

From 1 May 2019 the dams have received 44.1 billion litres of streamflow. The post-1975 average for the May to April period (called the streamflow year) is 183.9 billion litres.

Sprinkler roster compliance

The two-day a week sprinkler roster now applies. Since 1 January 2020, we have taken a total of 1583 actions (warnings + fines) compared with 2104 actions for the same period in 2019.

Annual rainfall

Perth has received 33.20 mm of rainfall since 1 January 2019. The average (1994-2017) rainfall for the February period is 29.7 mm.

General water news

Did you know one in three people will need blood or blood products in their lifetime?!

We are proud to retain the title of WA’s largest corporate blood donor thanks to our dedicated staff who rolled up their sleeves and donated blood 1,325 times in 2019 to help save lives.

The healthy competition, which is coordinated by Australian Red Cross Lifeblood, encourages businesses, educational institutes, and community groups to compete with others in their state to be the biggest blood donor.

To roll up your sleeves and donate, contact Australian Red Cross Lifeblood on 13 14 95 or go to

Media Enquiries:

Contact: Clare Lugar

Position: Manager Media and Strategic Communications

Phone: (08) 9420 2555