Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

February 2020 Summary

Rainfall was very much above average for 87 per cent and highest on record for six per cent of the area. Total rainfall was 320 mm, 171 per cent higher than the long-term mean of 118 mm for February. Rainfall was the third highest for February in the past 121 years.

Streamflows were very much above average including highest on record for 63 per cent of the sites. At seven sites, streamflows were highest for February since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 110 to 3307 μS/cm. Streamflows were high quality for 29 per cent and fresh for 43 per cent of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.

During February, storage volumes increased in five systems out of six in the drainage division. The accessible water in the Sydney system increased from 42 per cent on 8 February to 81 per cent on 18 February. By the end of the month, the volume of water stored in the division increased from 42 per cent (in January) to 69 per cent of the total accessible capacity, which is 12 per cent higher than previous year.

Select thumbnail for more information...


map visualising rainfall details


map visualising streamflow details

Streamflow salinity

map visualising salinity details

Water storages

map visualising storage details


map visualising rainfall details for South East Coast (NSW)

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 6%
Very much above average 87%
Above average 7%
Average Less than 1%
Below average 0%
Very much below average 0%
Lowest on record since 1900 0%

Data files are in zipped ASCII, CSV and text formats
File package size: 32Kb