Wednesday, 29 February 2012 - Seasonal Climate Summary for South Australia - Product code IDCKGC13R0
South Australia in summer 2011-12: Wet and cool in the north, warm and dry in the elsewhere.
- Higher than average rainfall through central and northern South Australia, below average in the southeast.
- Cooler than average summer days in the north, with warmer than average temperatures elsewhere.
Summer 2011/12 rainfall was average to above average across most parts of South Australia; parts of the northwest and parts of the northeast received well above average rainfall while rainfall totals tended to be below average in the southeast. See a map of rainfall deciles.
Several severe thunderstorms and heavy rainfall events were experienced over the summer period resulting in flash flooding for a number of locations around the State. A low pressure system and associated trough which had tracked across the State on December 17th caused flooding at several locations on the Yorke Peninsula. Flash flooding also occurred with thunderstorms about Eastern Eyre Peninsula on January 7th as a prefrontal trough moved across in a moist, unstable environment. Later in January, two gust fronts from thunderstorms converged over southern South Australia on January 28 causing damage to property and felling trees. An extensive rain band over the northeast of the State in the last week of February resulted in daily rainfall totals well in excess of 100mm, resulting in flooding and road closures in the State's northeast including Arkaroola, Copley, Yunta and Parachilna.
Summer rainfall was average to well above average across the Pastoral districts. Rainfall totals generally varied between 50 to 80mm, with some locations recording larger totals in isolated thunderstorm events. The highest summer rainfall total in the pastoral districts was at Arkaroola, in the Northeast, which recorded 273.3 mm, 106.6mm of which was recorded on February 29. Leigh Creek Airport received a record highest total summer rainfall of 169.4mm.
Rainfall was average across most agricultural parts, though tending to well below average through parts of the Southeast districts of South Australia. These districts generally received only about 30-50% of average summer rainfall. Rainfall totals were highly variable, typically 30 to 100mm throughout agricultural districts for the summer season, though tending higher between 80 to 120mm around the Mount Lofty and Flinders Ranges.Some sites had their highest total summer rainfall on record. Some sites had their highest total summer rainfall for at least 25 years. Some sites had their highest summer daily rainfall on record.
Temperatures across South Australia were near average during summer 2011/12. Averaged across the State as whole, the summer daily average temperature for South Australia was 0.2 °C warmer than the long term summer average. By comparison, summer 2010/11 was 0.8°C warmer than average. The warmest summer for South Australia was recorded in 2006 where temperatures were 2.7 °C above the long term average.
Maximum temperatures were slightly above average this summer, with temperatures generally up to 1°C above average across most of the agricultural areas, while pastoral areas had maximum temperatures for the month as a whole about 0.5°C below normal. Maximum temperatures were slightly cooler than average in the far northwest of the state. See a map of maximum temperature anomalies. Maximum temperatures for the month as a whole for individual stations ranged from 17.9 °C at Mount Lofty to 31.2 °C at Moomba Airport in the far Northeast of the State.
The hottest summer daily maximum temperature was 46.2°C recorded at Ceduna AMO in the State's west on the 1st of January. The coldest daily maximum was 12.8 °C at Mount Lofty on the 29th of February.
Minimum temperatures were above the long-term average this summer. All but the far northwest and northeastern areas of the State had average minimum temperatures close to 1°C above the long term summer minimum average. See a map of minimum temperature anomalies. Mean minimum temperatures for the whole season ranged from 6.9°C at Keith (Munkora) in the Southeast to 15.9 °C at Oodnadatta Airport in the states north.
The lowest overnight summer minimum temperature recorded was 2.4 °C at Naracoorte Aerodrome on the 5th of December. The highest minimum temperature recorded was 31.1°C at Oodnadatta Airport on the 20th of January.
|Extremes in summer 2011-12|
|Hottest day||46.2 °C at Ceduna AMO on 1 Jan 2012|
|Warmest days on average||
36.7 °C at Marree Comparison|
36.7 °C at Moomba Airport
36.7 °C at Oodnadatta Airport
|Coolest days on average||21.7 °C at Cape Willoughby|
|Coldest day||12.8 °C at Mount Lofty on 29 Feb 2012|
|Coldest night||2.4 °C at Naracoorte Aerodrome on 5 Dec 2011|
|Coolest nights on average||11.8 °C at Keith (Munkora)|
|Warmest nights on average||22.3 °C at Oodnadatta Airport|
|Warmest night||31.1 °C at Oodnadatta Airport on 20 Jan 2012|
|Warmest on average overall||29.5 °C at Oodnadatta Airport|
|Coolest on average overall||17.9 °C at Mount Lofty|
|Wettest overall||273.7 mm at Arkaroola|
|Wettest day||106.6 mm at Arkaroola on 29 Feb 2012|
|Highest wind gust||109 km/h at Woomera Aerodrome on 29 Jan 2012|
|Record highest summer daily rainfall|
Highest daily rainfall
in summer 2011-12 (mm)
|Spalding||74.4||on 17 Dec 2011||56.1||on 25 Jan 1941||111|
|Point Pass||77.4||on 18 Dec 2011||65.0||on 26 Jan 1993||92|
|Manoora (Cooinda)||87.2||on 18 Dec 2011||77.0||on 6 Feb 1973||56|
|Kalamurina||56.2||on 27 Feb 2012||56.1||on 21 Jan 1885||30|
|Record highest total summer rainfall|
for summer 2011-12 (mm)
|Leigh Creek Airport||169.4||157.4||in 1988||26||73.6|
|Highest total summer rainfall for at least 25 years|
for summer 2011-12 (mm)
Most recent summer
at least this wet
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.
|Lowest total summer rainfall for at least 25 years|
for summer 2011-12 (mm)
Most recent summer
at least this dry
|Summary statistics for summer 2011-12|
|Northwest (district 16)|
|Andamooka||35.1||-0.4||44.5||19 Feb 2012||20.6||0.0||13.0||7 Dec 2011||65.8||62.0||average||106%|
|Coober Pedy Airport||35.2||44.7||19 Feb 2012||20.8||12.8||6 Feb 2012||41.0|
|Ernabella (Pukatja)||33.8||41.2||17 Feb 2012||19.3||11.8||6 Dec 2011||79.0|
|Roxby Downs (Olympic Dam Aerodrome)||34.9||44.7||3 Jan 2012||19.4||12.6||9 Jan 2012||78.8|
|Tarcoola Aero||34.6||44.7||1 Jan 2012||18.3||9.1||1 Dec 2011||60.8|
|Woomera Aerodrome||33.5||0.0||43.6||24 Dec 2011||19.1||+0.3||12.6||1 Dec 2011||32.8||49.3||average||67%|
|Far North (district 17)|
|Arkaroola||32.9||-0.4||41.4||19 Feb 2012||18.8||-0.2||12.4||1 Dec 2011||273.7||97.4||v high||281%|
|Leigh Creek Airport||34.0||-0.3||43.1||19 Feb 2012||19.8||-0.1||12.7||6 Feb 2012||169.4||73.6||highest||230%|
|Marree Aero||36.3||45.1||3 Jan 2012||21.1||13.5||1 Dec 2011||102.8|
|Marree Comparison||36.7||-0.2||45.2||19 Feb 2012||20.9||+0.3||13.5||1 Dec 2011||95.1||54.9||high||173%|
|Moomba Airport||36.7||45.7||7 Jan 2012||22.0||15.0||7 Feb 2012||11.0|
|Oodnadatta Airport||36.7||-0.2||44.9||25 Dec 2011||22.3||+0.1||14.0||1 Dec 2011||69.4||73.1||average||95%|
|Western Agricultural (district 18)|
|Ceduna AMO||28.4||+0.3||46.2||1 Jan 2012||15.7||+1.0||7.7||1 Dec 2011||52.8||46.1||high||115%|
|Cleve||27.3||-0.3||42.1||1 Jan 2012||16.2||+1.0||8.8||1 Dec 2011||89.2||63.8||high||140%|
|Cleve Aerodrome||27.8||42.8||1 Jan 2012||15.5||8.3||1 Dec 2011||69.4||58.9||high||118%|
|Coulta (Coles Point)||27.4||+0.7||41.6||1 Jan 2012||15.5||+0.8||7.3||1 Dec 2011||51.0|
|Cummins Aero||28.8||44.7||1 Jan 2012||15.1||4.7||1 Dec 2011||44.8|
|Elliston||25.8||+0.5||42.7||1 Jan 2012||16.3||+0.9||7.2||1 Dec 2011||46.1||40.4||average||114%|
|Kimba||29.9||-0.7||41.5||1 Jan 2012||15.4||+0.2||8.4||12 Dec 2011||81.6||57.7||high||141%|
|Kyancutta||32.0||0.0||44.8||1 Jan 2012||14.9||+1.0||4.7||1 Dec 2011||75.6||50.7||high||149%|
|Minnipa Pirsa||31.2||44.0||1 Jan 2012||15.3||7.2||1 Dec 2011||63.0|
|Neptune Island||22.6||+1.0||33.5||25 Feb 2012||16.7||+0.9||13.3||4 Dec 2011||46.4||43.8||high||106%|
|North Shields (Port Lincoln AWS)||25.8||40.9||25 Feb 2012||15.9||10.1||7 Dec 2011||46.8|
|Nullarbor||26.7||-0.7||42.9||31 Dec 2011||16.0||+0.8||8.5||8 Feb 2012||94.0||39.8||v high||236%|
|Port Augusta Aero||32.7||44.0||2 Jan 2012||18.5||11.9||3 Dec 2011||79.0|
|Streaky Bay||29.1||+0.6||44.0||1 Jan 2012||16.5||+0.8||9.0||1 Dec 2011||57.4||39.3||high||146%|
|Whyalla Aero||29.1||-0.2||42.2||2 Jan 2012||17.4||+0.3||11.8||6 Dec 2011||124.8||60.5||v high||206%|
|Wudinna Aero||32.2||44.5||1 Jan 2012||14.7||4.2||1 Dec 2011||55.4|
|Upper North (district 19)|
|Hawker||32.5||-0.6||41.0||2 Jan 2012||17.2||0.0||10.5||1 Dec 2011||90.2||63.1||high||143%|
|Yongala||29.3||-0.5||39.5||2 Jan 2012||13.4||+0.7||3.0||1 Dec 2011||90.4||67.8||high||133%|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||31.3||42.4||2 Jan 2012||14.9||6.5||1 Dec 2011||158.6|
|Yunta Airstrip||30.9||40.1||2 Jan 2012||14.9||8.5||8 Feb 2012||81.4|
|Lower North (district 21)|
|Clare High School||28.3||38.8||1 Jan 2012||14.5||5.8||1 Dec 2011||100.8|
|Port Pirie Aerodrome||31.0||41.6||2 Jan 2012||17.1||7.7||1 Dec 2011||113.5|
|Port Pirie Nyrstar Comparison||30.9||-0.4||42.1||1 Jan 2012||18.3||+1.0||10.5||1 Dec 2011||86.0||59.5||high||145%|
|Snowtown (Rayville Park)||31.0||42.1||2 Jan 2012||14.1||7.7||1 Dec 2011||61.4|
|Yorke Peninsula (district 22A)|
|Edithburgh||24.9||38.1||17 Jan 2012||16.8||11.9||19 Dec 2011||64.4|
|Kadina AWS||30.1||41.9||1 Jan 2012||14.8||5.9||1 Dec 2011||78.8|
|Maitland||28.3||+0.3||41.2||1 Jan 2012||16.1||+1.0||9.1||1 Dec 2011||84.0||63.1||high||133%|
|Minlaton Aero||28.1||40.8||1 Jan 2012||15.5||5.6||1 Dec 2011||67.4|
|Stenhouse Bay||24.6||40.4||25 Feb 2012||16.7||12.9||6 Feb 2012||60.0|
|Warooka||26.5||-0.1||40.6||1 Jan 2012||16.1||+1.0||9.4||1 Dec 2011||90.2||49.6||high||182%|
|Kangaroo Island (district 22B)|
|Cape Borda||24.1||37.4||1 Jan 2012||14.3||8.6||4 Dec 2011||72.9|
|Cape Willoughby||21.7||+0.4||36.8||25 Feb 2012||16.3||+0.8||12.2||9 Jan 2012||41.2||59.6||average||69%|
|Kingscote Aero||26.1||39.3||1 Jan 2012||13.4||6.6||12 Feb 2012||61.6|
|Parndana Cfs AWS||25.5||40.6||1 Jan 2012||13.1||6.1||1 Dec 2011||72.8|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||29.1||+0.6||41.6||1 Jan 2012||17.5||+0.9||9.5||1 Dec 2011||61.0||62.3||average||98%|
|Adelaide Airport||28.0||+0.7||39.8||1 Jan 2012||16.7||+1.2||8.4||1 Dec 2011||52.0||59.9||average||87%|
|Edinburgh RAAF||29.6||+0.4||42.1||2 Jan 2012||16.4||+0.5||7.5||1 Dec 2011||78.2||62.2||high||126%|
|Parafield Airport||30.1||+1.3||42.0||1 Jan 2012||16.7||+0.9||6.7||1 Dec 2011||66.8||64.2||average||104%|
|Roseworthy AWS||30.6||43.4||2 Jan 2012||14.1||4.2||1 Dec 2011||51.8|
|County Light (district 23B)|
|Nuriootpa Viticultural||28.2||40.4||2 Jan 2012||14.2||4.5||1 Dec 2011||77.8|
|Rosedale (Turretfield Research Centre)||29.8||+0.1||42.0||2 Jan 2012||15.2||+0.5||5.0||1 Dec 2011||71.4||60.9||average||117%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||24.8||40.4||25 Feb 2012||15.7||8.1||5 Dec 2011||45.8|
|Kuitpo Forest Reserve||24.9||37.6||1 Jan 2012||13.9||7.3||5 Dec 2011||107.4|
|Mount Barker||26.6||+0.3||39.0||1 Jan 2012||12.9||+1.6||6.2||2 Dec 2011||93.6||86.4||average||108%|
|Mount Crawford (Mt Crawford AWS)||25.8||37.6||1 Jan 2012||13.3||6.0||2 Dec 2011||124.8|
|Mount Lofty||23.4||35.6||1 Jan 2012||12.4||4.7||5 Dec 2011||109.4|
|Noarlunga||27.5||40.1||1 Jan 2012||17.0||9.0||1 Dec 2011||88.2|
|Parawa (Second Valley Forest AWS)||23.1||37.4||1 Jan 2012||13.8||7.4||5 Dec 2011||74.2|
|Victor Harbor (Encounter Bay)||24.3||39.6||25 Feb 2012||14.6||6.6||6 Dec 2011||54.6|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||30.8||-0.1||41.3||2 Jan 2012||14.9||+0.9||7.2||8 Feb 2012||82.8||62.4||high||133%|
|Renmark Aero||31.5||42.3||2 Jan 2012||15.6||8.0||6 Dec 2011||109.4|
|Lower Murray Valley (district 24B)|
|Eudunda||28.4||0.0||39.5||2 Jan 2012||14.3||+0.9||6.3||1 Dec 2011||100.4||70.5||high||142%|
|Meningie||26.5||+0.9||40.8||1 Jan 2012||14.6||+1.0||7.2||5 Dec 2011||32.6||59.3||low||55%|
|Murray Bridge (Pallamana Aerodrome)||29.1||42.6||1 Jan 2012||13.8||5.4||1 Dec 2011||73.4|
|Murray Bridge Comparison||29.5||+0.9||43.3||2 Jan 2012||14.9||+0.8||8.2||1 Dec 2011||93.5||58.5||high||160%|
|Strathalbyn Racecourse||27.0||40.7||1 Jan 2012||14.6||6.0||2 Dec 2011||58.0|
|Murray Mallee (district 25A)|
|Karoonda||30.0||42.9||2 Jan 2012||13.9||5.6||1 Dec 2011||75.3||62.0||high||121%|
|Upper Southeast (district 25B)|
|Keith||29.9||+0.8||43.4||2 Jan 2012||13.6||+0.9||5.5||2 Dec 2011||22.8||66.3||v low||34%|
|Keith (Munkora)||30.8||44.3||2 Jan 2012||11.8||3.3||8 Feb 2012||28.0|
|Lameroo (Austin Plains)||30.8||42.8||2 Jan 2012||13.1||4.9||14 Dec 2011||35.6|
|Lameroo Comparison||30.2||+0.1||42.4||2 Jan 2012||14.3||+1.3||6.8||1 Dec 2011||33.8||66.5||low||51%|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||24.6||+0.7||38.1||25 Feb 2012||13.8||+0.7||7.3||14 Dec 2011||29.6|
|Coonawarra||27.9||+1.5||41.0||2 Jan 2012||12.4||+1.3||2.6||14 Dec 2011||43.4||87.6||low||50%|
|Mount Gambier Aero||26.3||+1.9||41.7||2 Jan 2012||12.3||+1.4||5.3||6 Jan 2012||50.4||92.5||v low||54%|
|Naracoorte Aerodrome||29.1||42.6||2 Jan 2012||11.9||2.4||5 Dec 2011||48.4|
|Padthaway South||28.9||42.3||2 Jan 2012||12.4||3.5||2 Dec 2011||31.4|
|Robe Airfield||24.4||37.2||25 Feb 2012||13.1||4.4||5 Jan 2012||27.8|
|Robe Comparison||22.8||+0.7||34.9||25 Feb 2012||14.5||+1.2||8.7||14 Dec 2011||31.8||67.0||low||47%|
A Seasonal 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 29 February 2012. 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.