The Bureau has retired the Monthly Water Update. You can find information about rainfall, streamflow, stream salinity and storages in the Bureau's Water Information, Water Data Online, Australian Water Outlook, Drought statement and Climate Summaries. If you have questions or feedback about this retirement, please contact

Monthly Water Update

small map representing the district Pilbara-Gascoyne


December 2022 Summary

Rainfall was average or higher than average across 87 per cent of the area. Total rainfall was 14 mm, 12 per cent lower than the long-term mean of 16 mm for December.

Streamflows were average for 78 per cent of the sites. Greenough River - Pindarring Rocks had the third highest streamflow for December since 1980.

During December, the total storage volume Pilbara (the only storage in the area) decreased by five per cent. By the end of the month, the volume of water stored was 55 per cent of the total accessible capacity, which is seven percentage points higher than the previous year.

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map visualising rainfall details


map visualising streamflow details

Water storages

map visualising storage details


map visualising rainfall details for Pilbara-Gascoyne

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average 12%
Above average 31%
Average 44%
Below average 9%
Very much below average 4%
Lowest on record since 1900 0%

Data files are in zipped ASCII, CSV and text formats
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