October 2019 Summary
Rainfall was average or lower than average across 90 per cent of the area, predominantly in the south and west. The Monsoon rains have not yet arrived, and October commonly falls within the dry season in this part of Australia. Most of the area did not receive any rainfall bringing the mean rainfall to only 1 mm, 80 per cent lower than the long-term mean of only 5 mm for October.
The only river to flow during October was Greenough River - Karlanew Peak which had the second highest streamflow for October since 1980. All other stations recorded no flow which is average for October for six of the nine sites in the drainage division.
During October, the total accessible volume of the only storage system decreased by one per cent. By the end of the month, the volume of water stored was 23 per cent of the total accessible capacity, a decrease of 22 per cent from the same time last year.
|Rainfall decile group||Percentage of area|
|Highest on record since 1900||0%|
|Very much above average||Less than 1%|
|Very much below average||8%|
|Lowest on record since 1900||Less than 1%|
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