Tuesday, 1 September 2015 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
South Australia in August 2015: Below average rainfall in parts, cooler temperatures in the south and east
In South Australia, most central and eastern districts saw above average rainfall for August. Rainfall was below average in the southeast and far northwest, with elsewhere across the State recording falls closer to average for the month. Statewide temperatures were slightly warmer than average as a whole, with cooler than normal days and nights particularly in southern parts. Western areas saw nights tend warmer than average.
- Above average rain in the east
- Below average rain in the southeast and northwest
- Coolest August days since 2010
- Driest August since 2010
August rainfall was below average for South Australia as a whole, with particularly dry areas across the southeast and northwest parts of the State. The wettest period for most southern locations occurred at the beginning of the month as a cold frontal system crossed the state, bringing totals of 25 to 50 mm to southern coasts and elevated regions across the Mount Lofty and Flinders Ranges. A sequence of cold fronts swept across southern coastal areas from the 9th to 12th, bringing light to moderate periods of rain for agricultural areas, though totals were not enough to see locations reach their long-term August Average. Despite this, the wettest days also saw some sites have their highest August daily rainfall on record. On the 24th, a trough of low pressure over the eastern part of the State deepened and an associated middle level disturbance produced a band of rain over the Flinders and south of the pastoral districts in the east. The rainband resulted in some sites in these areas having their highest total August rainfall for at least 20 years
The statewide mean maximum temperature was warmer than average, though it was the coolest August since 2010. The coolest temperatures for the month were recorded at the start of the month as a cold front and southwesterly airstream was directed across the State. Minimum temperatures were also above average for August, though nights where generallly cooler than average through some central and eastern parts of the state. Light winds and clear skies during this period resulted in minimum temperatures of around 5 to 10 degrees below average and morning frost reported across much of the state, with Strathalbyn, Parawa and Edithburgh having their lowest July temperature on record. Despite the generally average conditions across much of the state, a warm spell saw Moomba have its highest August temperature on record.
|Extremes in August 2015|
|Hottest day||34.8 °C at Moomba Airport on the 23rd|
|Warmest days on average||22.8 °C at Oodnadatta Airport|
|Coolest days on average||9.6 °C at Mount Lofty|
|Coldest day||6.7 °C at Mount Lofty on the 1st|
|Coldest night||-3.9 °C at Renmark Aero on the 30th|
|Coolest nights on average||3.2 °C at Yongala|
|Warmest nights on average||11.1 °C at Neptune Island|
17.6 °C at Tarcoola Aero on the 20th|
17.6 °C at Leigh Creek Airport on the 21st
|Warmest on average overall||15.4 °C at Oodnadatta Airport|
|Coolest on average overall||7.2 °C at Mount Lofty|
|Wettest overall||134.4 mm at Ashton|
|Wettest day||47.2 mm at Melrose on the 12th|
|Strongest wind gust||106 km/h at Cape Willoughby on the 20th|
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|Record highest August daily rainfall|
|Kimba||38.0||on the 12th||28.6||on the 23rd in 2000||94|
|Parachilna (Motpena)||31.4||on the 19th||30.0||on the 18th in 1979||47|
|Strathearn||26.0||on the 24th||17.4||on the 30th in 1992||25|
|Minnipa Pirsa||27.2||on the 21st||26.0||on the 20th in 1998||20|
|Record highest August total rainfall|
|Minnipa Pirsa||84.8||70.8||in 1996||20||37.6|
|Highest August total rainfall for at least 20 years|
|Parachilna (Motpena)||35.6||41.2||in 1992||15.8|
|Wilpena (Oraparinna)||77.5||91.4||in 1992*||32.8|
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.
|Record highest August temperature|
|Moomba Airport||34.8||on the 23rd||34.6||on the 22nd in 2009||21||22.7|
|Summary statistics for August 2015|
|Northwest (district 16)|
|Coober Pedy Airport||21.1||+0.1||30.8||1st||7.5||-0.1||2.7||6th||1.6||6.0||average||27%|
|Roxby Downs (Olympic Dam Aerodrome)||20.6||-0.3||30.9||1st||6.3||+0.9||-1.2||7th||22.0||9.0||high||244%|
|Far North (district 17)|
|Leigh Creek Airport||19.2||0.0||27.3||1st||6.5||+0.4||2.3||13th||20.6||15.0||average||137%|
|Western Agricultural (district 18)|
|North Shields (Port Lincoln AWS)||15.9||-0.9||20.9||20th||7.0||-0.1||2.9||30th||57.0||48.8||average||117%|
|Port Augusta Aero||19.5||-0.6||26.3||21st||6.4||+1.2||0.0||11th||21.8||14.6||average||149%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||17.9||-1.1||25.2||21st||5.0||+0.8||-3.3||31st||17.0||18.4||average||92%|
|Lower North (district 21)|
|Clare High School||13.2||-1.0||18.6||20th||4.3||-0.1||-0.6||27th||84.0||64.7||average||130%|
|Port Pirie Aerodrome AWS||17.3||23.3||21st||5.8||0.4||27th||46.0|
|Snowtown (Rayville Park)||15.7||-1.2||20.6||20th||4.2||-0.1||-0.8||29th||61.0||40.6||high||150%|
|Yorke Peninsula (district 22A)|
|Kadina AWS||15.7||-1.6||20.6||31st||4.8||+0.1||-1.6||27th||50.2||29.2||v high||172%|
|Kangaroo Island (district 22B)|
|Parndana Cfs AWS||13.5||18.8||20th||5.8||2.3||7th||102.6|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||15.8||-0.9||22.9||20th||8.2||0.0||3.3||8th||48.4||67.5||average||72%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||15.3||-0.6||21.0||20th||5.5||-0.1||-0.5||29th||61.8||57.3||average||108%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||15.2||-1.3||23.2||20th||7.9||-0.4||2.4||31st||30.2||48.1||low||63%|
|Kuitpo Forest Reserve||12.4||-1.2||20.7||20th||6.4||-0.5||3.8||30th||100.8||86.1||average||117%|
|Mount Crawford (Mt Crawford AWS)||11.2||-1.3||17.8||20th||5.4||-0.8||2.2||30th||87.4||83.7||average||104%|
|Parawa (Second Valley Forest AWS)||11.6||-0.9||18.3||20th||6.8||-0.3||3.9||8th||91.4||101.1||average||90%|
|Victor Harbor (Encounter Bay)||15.4||-1.1||23.8||20th||7.1||+0.4||0.0||31st||54.2||72.2||low||75%|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||16.8||-0.8||24.9||20th||5.7||+1.3||-1.0||31st||21.6||26.3||average||82%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||15.8||23.4||20th||4.5||-3.1||31st||26.8||26.4||average||102%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||15.3||-1.3||22.2||20th||5.0||+0.5||0.5||19th||21.8||33.3||low||65%|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||14.0||-0.6||19.5||20th||7.8||0.0||1.9||19th||52.2||68.6||average||76%|
|Mount Gambier Aero||13.8||-0.3||20.8||20th||5.5||0.0||-0.3||31st||54.6||95.2||low||57%|
The Monthly climate summary lists 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.
A climate summary is generally published on the first working day of each month.
This statement has been prepared based on information available at 12 pm on Tuesday 1 September 2015. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages for individual sites 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 used for temperature area averages.