Australia Sets Warmest 12-Month Period on Record

By Eric Leister, Meteorologist
September 6, 2013; 9:20 AM ET
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France's Julien Benneteau relieves the heat with a bag of ice on his head during his semifinal match against South Africa's Kevin Anderson at the Sydney International Tennis Tournament earlier this year. (AP Photo/Rob Griffith)

In a statement released by the Australian Government Bureau of Meteorology, Australia has just experienced its warmest 12-month period on record.

A very unseasonable August helped set this mark as average temperatures country wide were 1.6 degrees C (2.9 degrees F) above normal. This marked the second warmest highest departure from normal for any month on record.

Maximum temperatures were even more extreme, averaging 2.6 degrees C (4.7 degrees F) above normal.

For the 12-month period from September 2012 through August 2013, the mean temperature across all of Australia was 1.11 degrees C (2 degrees F) above normal. The mean temperature is derived from the average of maximum and minimum temperatures.

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The combination of the nation's fourth warmest spring, hottest summer, seventh warmest autumn and third warmest winter led to the warmest 12-month period on record.

No shots of cold air are expected across Australia during the next week as unseasonable warmth prevails from Perth to Sydney.

Long-range forecasts suggest that unseasonable warmth will prevail through the upcoming spring for Australia which could lead to more records.

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