Wednesday, January 04, 2006

2005 Aussie Climate Change Awards

Nobody wins the 2005 Australian, NSW & Sydney Weather Championships where that many records fell it became obvious to all spectators that the troposphere is on steroids.

Reproduced in full from the Sydney Morning Herald:


  • Australia has recorded its warmest year on record with the 2005 annual mean temperature at 1.09°C above the standard average, making it the warmest year since reliable records began in 1910.
There you go .. in October it was looking to be a runner up to 1998, by November 2005 it was neck and neck, and now we have a new winner!
  • A 1°C increase in mean temperatures is equivalent to many southern Australian towns shifting northward by about 100km
  • April had the largest Australian mean monthly temperature anomaly ever recorded, with a monthly anomaly of +2.58°C breaking the previous record of +2.32°C set in June 1996
  • The January-May period was the 2nd driest on record
  • Preliminary data indicate average total rainfall throughout Australia for 2005 was about 399mm, compared with a long-term average of 472mm


  • NSW experienced its warmest year since 1914 with an annual mean temperature 0.98 ÂșC above average
  • April was a record warm month for the state with maximum temperatures west of the ranges more than 3 degrees above the historic average
  • Rainfall for 2005 was average or close to average across most of the state, an average of 494mm fell across the state compared to the normal 566mm


  • In 2005 Sydney experienced its equal warmest year since records commenced in 1859
  • The annual mean temperature for the year was 19.1°C or 1°C above the historic average, and the same as 2004
  • Eight out of the top 10 warmest years have now occurred since 1988
  • Day-time maximum temperatures for the year were also the equal warmest on record with an average maximum temperature of 23.4°C or 1.3°C above the historic average and the same as 2004
  • There were 48 days during the year when the temperature did not drop below 20°C overnight (the historic average is 25 days)
  • Sydney recording its warmest April on record with an average mean temperatureof 20.9°C, or nearly 2°C above the historic average
  • For the first time in 147 years of record, the average maximum temperature for April (25.1°C) was higher than March (24.3°C)
  • The highest temperature recorded during the year in Sydney was 39.0°C on December 7 while the coldest night was 5.1°C on August 13
  • The annual rainfall for Sydney of 816mm was well below the historic annual average of 1219mm and ranked 15th driest in 146 years of record
  • Half the total rainfall was recorded in just 3 months, February, March and November with all other months recording well below average rainfall
  • One of Sydney's longest dry spells was recorded from 17 July to 31 August with only 1.6mm recorded in the 46 days
  • December 2005 was the sunniest month ever recorded in Sydney averaging 10.4 hours of sunshine per day (records since 1931)

    Annual mean temperature: average of the daily maximum and minimum temperatures
    Sydney temperatures: those taken at Observatory Hill

    These facts about the weather condition in Australia, NSW amd Sydney have been taken from the official Bureau of Meteorology site.

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