Monday, 2 September 2013 - Monthly Climate Summary for Melbourne Metropolitan Area and Environs - Product code IDCKGC16L0
Melbourne Area in August 2013: Warmest nights on record.
The Melbourne area in August 2013 was characterised by:
- The warmest August night-time temperatures on record
- Mostly average daytime temperatures
- Mostly average rainfall.
Rainfall totals were mostly close to normal in the Melbourne area. The exceptions were Cranbourne Botanic Gardens and Coldstream which both had wetter than usual Augusts. The wettest station overall was Cranbourne Botanic Gardens with 121.8 mm whilst the driest was Avalon Airport with 36.8 mm. The wettest single day was the 4th when Bundoora (Latrobe University) recorded 30.0 mm.
The warmest station on average (a combination of maximum and minimum temperatures) was Melbourne Regional Office with 12.9 °C whilst the coolest on average was Coldstream with 10.7 °C.
Daytime temperatures were average to above average in the Melbourne area during August. The hottest day was the 31st when Avalon Airport recorded 23.4 °C and Melbourne Regional Office recorded the warmest days on average with 16.5 °C. The coolest days on average were recorded at Cerberus with 15.0 °C and the coldest day was the 20th when Coldstream recorded 10.6 °C.
Night-time temperatures were the warmest on record at half of the stations in the Melbourne area. The warmest night was the 30th when Melbourne Regional Office recorded 14.6 °C and Melbourne Regional Office also recorded the warmest nights on average with 9.3 °C. The coldest night was the 20th when Coldstream recorded -0.9 °C and Coldstream also recorded the coolest nights on average with 6.0 °C.
|Extremes in August 2013|
|Hottest day||23.4 °C at Avalon Airport on the 31st|
|Warmest days on average||16.5 °C at Melbourne Regional Office|
|Coolest days on average||15.0 °C at Cerberus|
|Coldest day||10.6 °C at Coldstream on the 20th|
|Coldest night||-0.9 °C at Coldstream on the 20th|
|Coolest nights on average||6.0 °C at Coldstream|
|Warmest nights on average||9.3 °C at Melbourne Regional Office|
|Warmest night||14.6 °C at Melbourne Regional Office on the 30th|
|Warmest on average overall||12.9 °C at Melbourne Regional Office|
|Coolest on average overall||10.7 °C at Coldstream|
|Wettest overall||121.8 mm at Cranbourne Botanic Gardens|
|Driest overall||36.8 mm at Avalon Airport|
|Wettest day||30.0 mm at Bundoora (Latrobe University) on the 4th|
|Highest wind gust||
96 km/h at Essendon Airport on the 12th|
96 km/h at Laverton RAAF on the 12th
|Record highest August mean daily minimum temperature|
Mean daily minimum
for August 2013 (°C)
|Melbourne Regional Office||9.3||9.2||in 2009||158||6.7|
|Essendon Airport||7.8||7.7||in 2009||43||5.5|
|Cranbourne Botanic Gardens||7.8||7.7||in 1993||22||6.4|
|Avalon Airport||7.2||= 7.2||in 2009||18||5.5|
|Summary statistics for August 2013|
|East Central (district 86)|
|Bundoora (Latrobe University)||15.6||+0.7||22.9||29th||7.7||+1.6||4.0||20th||59.4||57.5||average||103%|
|Cranbourne Botanic Gardens||15.1||+0.6||22.1||31st||7.8||+1.4||4.9||20th||121.8||81.2||v high||150%|
|Melbourne Regional Office||16.5||+1.5||23.1||29th||9.3||+2.6||5.2||1st||57.0||50.1||average||114%|
|Scoresby Research Institute||15.4||+1.2||22.1||29th||7.9||+1.6||3.5||20th||85.4||80.1||average||107%|
|West Central (district 87)|
A Monthly Climate Summary is prepared to list the main features of the weather in Melbourne Metropolitan Area and Environs using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.
This statement has been prepared based on information available at 11 am on Monday 2 September 2013. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.
The ACORN-SAT dataset is being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.