Issued on 5 December 2011

No Drought Statement issued for December

Rainfall in recent months in southwestern Australia has provided some relief to long-term rainfall deficiencies in the area. Whilst there has not been enough rainfall to totally clear long-term deficiencies as reported in the September Drought Statement, rainfall that has been received means that there are currently no short-term deficiencies.

Rainfall across Australia since late-autumn has been varied, in southeastern Australia rainfall had generally been below average since the start of winter, though not low enough to trigger any deficiency thresholds over large areas. Furthermore, in November, most areas across Australia received above average rainfall, further reducing any small areas of short-term deficiency.

Definitions

Lowest on record - lowest in the historical analysis, which runs from 1900.
Severe deficiency - rainfalls in the lowest 5% of historical totals.
Serious deficiency - rainfalls in the lowest 10% of historical totals, but not in the lowest 5%.

Very much below average - rainfalls in the lowest 10% of historical totals.
Below average - rainfalls in the lowest 30% of historical totals, but not in the lowest 10%.
Average - rainfalls in the middle 40% of historical totals.
Above average - rainfalls in the highest 30% of historical totals, but not in the highest 10%.
Very much above average - rainfalls in the highest 10% of historical totals.

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Product Code IDCKGD0AR0