Friday, 2 January 2009 - Monthly Climate Summary for Adelaide Metro & Hills - Product code IDCKGC13R0
An archive of previous monthly summaries for Adelaide Metro & Hills is also available, as are summaries for other states and many other climate summaries and diagnostics.
Adelaide's (Kent Town) rainfall for December 2008 was 40.4 mm recorded on 8 days, most of the total occurring in one rain event on the 13th of December. This is compared to the average of 28.3 mm on 7 days. Last year, 37.6 mm was recorded in December on 7 days. The driest December on record occurred in 1904 at West Terrace when no rainfall was recorded.
The December total means that total rainfall for 2008 was 402.4 mm in 135 days (from manual observations). In 2007 465.0 mm on 112 days was recorded. The annual average rainfall for Adelaide at Kent Town is 550.2 mm.See a map of total rainfall. See a map of rainfall deciles.
This December was relatively mild in contrast to last year, which saw 2007 finish in the grip of a heatwave!!
The mean maximum temperature recorded at the South Australian Regional Office (Kent Town) for December 2008 was 25.5°C, which is 1.5°C below the December mean maximum temperature of 27.0°C. The mean December maximum last year was 28.9°C, while the record December mean maximum was 29.0°C in 2003.
On average between 3 and 4 days with maximum temperatures above 35°C could be expected in December in Adelaide as recorded at the Kent Town Regional Office, but 2008 saw no days above 35°C at the Regional Office. The last time this occurred was in 2001. The hottest maximum temperature recorded in the Adelaide metropolitan area was 35.3°C on the 21st at Parafield Airport.
The mean minimum temperature for December 2008 at the South Australian Regional Office (Kent Town) was 15.4°C, which is 0.1°C below the normal December mean minimum of 15.5°C. The highest average minimum is 16.9°C in 2003. Last December the mean minimum was 16.4°C.
The coldest minimum temperature recorded in the Adelaide metropolitan area was 7.6°C on the 8th at Edinburgh, whilst the warmest night was 21.1°C at Adelaide (Kent Town) on the 21st. Hills residents experienced some colder nights with Mount Barker recording 2.7°C as the coldest hills night, on the 8th of December.See a map of mean maximum temperatures. See a map of maximum temperature anomalies. See a map of mean minimum temperatures. See a map of minimum temperature anomalies.
|35.3°C at Parafield Airport on the 21st|
|Warmest days on average|
Highest mean daily maximum temperature
|26.1°C at Parafield Airport|
|Coolest days on average|
Lowest mean daily maximum temperature
|23.6°C at Noarlunga|
Lowest daily maximum temperature
|17.4°C at Mount Barker on the 13th|
|2.7°C at Mount Barker on the 8th|
|Coolest nights on average|
Lowest mean daily minimum temperature
|10.3°C at Mount Barker|
|Warmest nights on average|
Highest mean daily minimum temperature
|15.4°C at Adelaide (Kent Town)|
Highest daily minimum temperature
|21.1°C at Adelaide (Kent Town) on the 21st|
Highest total rainfall
|66.8 mm at Gould Creek (Little Para Reservoir Alert|
|Highest wind gust||65 km/h at Parafield Airport on the 12th|
In this table, key sites have been highlighted to make them easier to find. This table is very wide and may not fit if printed.
|Summary statistics for December 2008|
|Adelaide Plains (district 23A)|
|Edinburgh RAAF||25.7||−2.1||34.7||21st||14.9||+0.1||7.6||8th||48.2||22.5||very high||214%|
|Mount Lofty Ranges (district 23°C)|
This statement has been prepared based on information available at 11 am on Friday 2 January 2009. 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 20 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.