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Wednesday, 1 September 2010 - Monthly Climate Summary for South Australia - Product code IDCKGC23R0
Rainfall totals were above average across the Pastoral districts in August; with totals generally ranging from 20 to 40 mm. The highest August rainfall total recorded in the Pastoral Districts was 54.9 mm at Nonning. Beltana Roadhouse recorded their highest August daily rainfall on record with 27 mm on the 10th, see rainfall records.
August rainfall totals were generally above average across the Agricultural districts. The highest August rainfall total recorded in the Agricultural districts was 289.6 mm at Uraidla. Some sites set new daily rainfall records and several locations set new monthly rainfall records for August, see rainfall records.
Rainfall totals ranged from about 30 to 90 mm over the Western Agricultural, the Upper and Lower North districts, Upper Murray Valley and Yorke Peninsula. The Adelaide Plains, County Light, Lower Murray Valley, Murray Mallee and Upper Southeast districts had totals ranging from about 50 to 120 mm, increasing to 80 to 200 mm in the Mount Lofty Ranges. Kangaroo Island and the Lower Southeast had totals ranging from about 80 to 120 mm.
This year to date, rainfall totals have been above average across the northeast and in the west of South Australia. Rainfall totals have generally been close to average elsewhere, with pockets of above average rainfall.
Some sites had their highest total August rainfall on record. Some sites had their highest total August rainfall for at least 25 years. Some sites had their highest August daily rainfall on record. See a map of rainfall deciles.
State-wide the monthly mean temperature (the average of the maximum and minimum temperatures) for August 2010 was 12.2 °C, which is 0.8 °C below the long-term average for South Australia.
Mean maximum temperatures were generally between 1°C and 2°C below average across the Agricultural districts this August, and 2°C to 3°C below average across the Pastoral Districts. Some sites set new lowest mean daily maximum temperature records for August, see mean maximum temperature records.
In the Pastoral districts mean maximum temperatures ranged from 15.3 °C at Yunta Airstrip to 19.6 °C at Oodnadatta Airport. The highest recorded maximum temperature in the Pastoral districts for August was 27.3 °C at Moomba Airport on the 31st. The lowest maximum temperature recorded in the Pastorals in August was 11.4 °C at Yunta Airstrip on the 5th.
Mean maximum temperatures over the Agricultural districts ranged from 8.8 °C at Mount Lofty to 17.7 °C at Port Augusta Aero.
The highest maximum recorded in the Agricultural districts during August was 28.4 °C at Ceduna AMO on the 31st. The lowest was 5.7 °C at Mount Lofty on the 4th of August.
Some sites had their lowest August mean daily maximum temperature on record. Some sites had their lowest August mean daily maximum temperature for at least 25 years.
This year so far, mean maximum temperatures have been below average in the northeast, and warmer than average across parts of the southeast. Elsewhere maximum temperatures have generally been close to average.
Mean minimum temperatures were mixed across South Australia this August, but generally within ±1°C of the long-term mean.
Mean minimum temperatures in the pastoral areas ranged from 3.7 °C at Nonning to 7.5 °C at Oodnadatta Airport. The lowest recorded minimum temperature in the Pastoral districts for August was -3.6 °C at Yunta Airstrip on the 6th. The highest minimum temperature recorded in the Pastorals in August was 13.8 °C at Oodnadatta Airport on the 18th and at Moomba Airport on the 19th.
Over the Agricultural districts mean monthly minimum temperatures ranged from 2.7 °C at Yongala to 10.7 °C at Neptune Island.
The lowest recorded minimum temperature in the Agricultural districts for August was -3.1 °C at Yongala on the 6th. The highest minimum temperature recorded in the Agricultural districts in August was 14.4 °C at Elliston and Neptune Island on the 31st.
Mean minimum temperatures have been above average across most of the State this year so far.
|Extremes in August 2010|
|Hottest day||28.4 °C at Ceduna AMO on the 31st|
|Warmest days on average||19.6 °C at Oodnadatta Airport|
|Coolest days on average||8.8 °C at Mount Lofty|
|Coldest day||5.7 °C at Mount Lofty on the 4th|
|Coldest night||-3.6 °C at Yunta Airstrip on the 6th|
|Coolest nights on average||2.7 °C at Yongala|
|Warmest nights on average||10.7 °C at Neptune Island|
14.4 °C at Elliston on the 31st|
14.4 °C at Neptune Island on the 31st
|Wettest overall||289.6 mm at Uraidla|
|Highest wind gust||102 km/h at Mount Crawford (Mt Crawford AWS) on the 26th|
|Record highest August daily rainfall|
Highest daily rainfall
in August 2010 (mm)
|Nildottie||26.0||on the 11th||19.6||on the 25th in 1983||45|
|Adelaide (Magill Secure Care Centre)||40.0||on the 26th||38.0||on the 1st in 1994||43|
|Beltana Roadhouse||27.0||on the 10th||25.8||on the 29th in 1992||25|
|Record highest total August rainfall|
for August 2010 (mm)
|Belair (State Flora Nursery)||181.3||175.8||in 1984||127||97.3|
|Corny Point||116.8||114.8||in 1909||120||58.6|
|Parawa (Sharon)||209.4||202.0||in 1996||69||125.3|
|Adelaide (Magill Secure Care Centre)||158.5||149.8||in 1984||43||85.7|
|Highest total August rainfall for at least 25 years|
for August 2010 (mm)
Most recent higher
|Cooke Plains||77.0||78.0||in 1983||26||44.8|
|Neptune Island||119.6||131.2||in 1984||26||64.0|
|American River||115.2||127.6||in 1985||25||73.7|
|Record lowest August mean daily maximum temperature|
Mean daily maximum
for August 2010 (°C)
|Leigh Creek Airport||16.3||16.4||in 1989||26||19.1|
|Lowest August mean daily maximum temperature for at least 25 years|
Mean daily maximum
for August 2010 (°C)
Most recent lower
|Marree Comparison||19.1||18.9||in 1968||41||21.4|
|Summary statistics for August 2010|
|Northwest (district 16)|
|Coober Pedy Airport||18.5||25.6||18th||6.4||2.4||5th||23.0|
|Marla Police Station||19.5||-2.6||26.8||31st||5.9||-0.4||0.1||6th||16.6||8.5||high||195%|
|Roxby Downs (Olympic Dam Aerodrome)||17.6||24.8||18th||5.0||-1.9||6th||26.0|
|Far North (district 17)|
|Leigh Creek Airport||16.3||-2.8||22.4||31st||5.2||-1.0||0.1||6th||38.0||16.3||high||233%|
|Marree Comparison||19.1||-2.3||26.0||18th||7.2||+0.9||2.8||6th||27.3||9.3||v high||294%|
|Western Agricultural (district 18)|
|Coulta (Coles Point)||15.1||20.1||30th||8.1||4.7||9th||77.4|
|Neptune Island||14.4||-0.9||17.5||30th||10.7||-0.4||9.1||1st||119.6||64.0||v high||187%|
|North Shields (Port Lincoln AWS)||15.4||20.3||30th||7.4||3.9||22nd||79.2|
|Port Augusta Aero||17.7||24.9||31st||5.1||-1.3||6th||27.2|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||17.0||25.5||31st||5.0||-2.2||17th||30.0|
|Lower North (district 21)|
|Clare High School||12.3||18.0||31st||4.5||-1.4||22nd||87.4|
|Port Pirie Aerodrome||16.3||22.9||31st||5.6||0.4||5th||46.3|
|Port Pirie Nyrstar Comparison||16.7||-1.4||22.6||31st||8.4||+0.2||4.5||5th||51.5||35.0||high||147%|
|Snowtown (Rayville Park)||14.9||20.7||31st||4.9||-0.1||7th||54.6|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||15.1||-1.6||20.1||31st||8.0||-0.2||3.6||7th||115.2||66.7||v high||173%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||14.3||-1.5||19.5||30th||5.6||-0.1||0.0||5th||80.8||57.4||high||141%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||14.6||19.5||31st||7.9||3.8||17th||86.2|
|Kuitpo Forest Reserve||11.9||17.6||31st||6.0||2.9||17th||154.4|
|Mount Barker||13.2||-1.0||18.5||30th||5.0||+0.1||-0.1||17th||188.1||102.6||v high||183%|
|Mount Crawford (Mt Crawford AWS)||10.6||15.6||30th||5.2||2.6||17th||168.6|
|Parawa (Second Valley Forest AWS)||11.5||14.3||31st||6.3||3.1||7th||169.0|
|Victor Harbor (Encounter Bay)||15.2||19.5||30th||7.1||1.0||7th||111.0|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||16.0||-1.5||22.6||31st||4.6||+0.3||-1.2||7th||30.2||27.4||average||110%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||15.1||20.1||30th||5.2||-0.9||17th||46.4|
|Murray Bridge Comparison||15.8||-1.7||21.5||30th||6.0||+0.1||0.4||17th||54.7||37.0||high||148%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||14.3||19.5||30th||4.4||-0.3||17th||65.8|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||13.5||16.4||30th||7.7||3.7||6th||98.2|
|Mount Gambier Aero||13.0||-1.1||17.2||30th||5.6||+0.1||1.1||6th||151.2||94.9||v high||159%|
A Monthly Climate Summary is prepared to list the main features of the weather in South Australia 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 12 pm on Wednesday 1 September 2010. 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.