Tuesday, 1 March 2011 - Monthly Climate Summary for South Australia - Product code IDCKGC23R0
South Australia in February 2011: Wettest February on record
- Above average rainfall was recorded across South Australia, with the state having its wettest February on record as a result.
- Close to 20 locations recorded their wettest February day on record. For 5 of these locations it was their wettest single day for any time of year.
- About 20 locations had their wettest February on record, with 4 of these locations having their wettest month on record over all months of the year.
- Maximum temperatures were below average across the state, with temperatures reaching 1 to 3 degrees below average in parts of the northwest.
- Marree, Andamooka, Arkaroola and Leigh Creek all had their coldest February day on record on the 6th associated with the above average rainfall.
- Minimum temperatures up to 2 degrees above average.
- Coonawarra had its coldest February night on record on the 7th.
Above average rainfall was recorded right across South Australia this February, with the state having its wettest February on record as a result. This was due in large part to two heavy rainfall events. Ex-Tropical Cyclone Yasi moved in just north of the South Australia/Northern Territory border on the 5th and 6th of February. High levels of moisture associated with Ex-TC Yasi combined with the passage of a trough of low pressure across South Australia resulted in heavy rainfall and localised flooding across parts of the Riverland, Flinders and Mid North districts. On the 18th a low pressure trough moved across South Australia, with tropical moisture feeding in from Severe Tropical Cyclone Dianne off the WA coast. The passage of this trough brought heavy rain, with the heaviest falls seen over southern parts of the state. Record February daily rainfall totals were recorded at close to 20 locations with these events, see records. For Yongala, Hallett, Whyte Yarcowie, American River and Parndana this was the wettest day for any time of year. About 20 locations also had their wettest February on record as a result, see records. Yongala, Yunta (Paratoo and Panaramitee) and Whyte Yarcowie all had their wettest month for any time of year.
Rainfall over the pastoral districts was well above average; with totals ranging from 40 mm up to about 150 mm. Ernabella was the wettest location with 249.4 mm recorded.
Rainfall was well above average across the agricultural districts. Totals were generally in the 40 to 100 mm range, with isolated areas receiving up to 150 mm and 200 mm. The wettest overall was Yongala with 196.6 mm.Some sites had their highest total February rainfall on record. Some sites had their highest total February rainfall for at least 25 years. Some sites had their highest February daily rainfall on record. See a map of rainfall deciles.
The mean temperature (the average of the maximum and minimum temperatures) for South Australia as a whole in February 2011 was 26.5 °C, which is equal to the long-term average.
The area-averaged mean maximum temperature of 32.7°C was 1.4°C below the long-term February average for South Australia as a whole.
Mean maximum temperatures over the pastoral districts of the state were 1 to 3°C below average, predominantly due to the above average rainfall received this month. Temperatures ranged from 30.5°C at Yunta in the Northeast district to 37.0°C at Moomba Airport in the Far North district. The highest recorded maximum temperature for February was 44.0°C at Gluepot on the 1st of the month. Marree, Andamooka, Arkaroola and Leigh Creek all set new lowest daily maximum temperature records for February on the 6th, see coldest February day records.
Over the agricultural areas mean maximum temperatures were generally 1 to 2 degrees below the long-term average. Maximum temperatures for the month as a whole across the agricultural areas ranged from 20.7°C at Cape Willoughby on Kangaroo Island to 32.7°C at Port Augusta Aero in the Western Agricultural District. The lowest recorded maximum temperature for February was 15.3°C at Mount Lofty on the 12th of the month, with the hottest day being recorded at Port Augusta with 45.0°C on the 2nd.Some sites had their coldest February day (lowest maximum temperature) on record.
Mean minimum temperatures were 1 to 2 degrees above average across South Australia this February, largely due to increased cloud cover and humidity levels.
Over the Pastoral districts minimum temperatures ranged from 16.6°C at Gluepot in the Northeast District to 23.7°C at Oodnadatta in the Far North District. The warmest overnight minimum temperature for February was 31.5°C recorded at Coober Pedy Airport in the Northwest District on the 2nd.
Over the agricultural areas overnight minimum temperatures ranged from 12.3°C at Mount Gambier Aero and Naracoorte in the Lower South East to 19.6°C at Port Augusta Aero. The lowest recorded daily minimum temperature for February was 2.2°C recorded at Coonawarra on the 7th, which is its lowest February minimum temperature on record.
Some sites had their lowest February temperature on record.
|Extremes in February 2011|
|Hottest day||45.0 °C at Port Augusta Aero on the 2nd|
|Warmest days on average||37.0 °C at Moomba Airport|
|Coolest days on average||20.7 °C at Cape Willoughby|
|Coldest day||15.3 °C at Mount Lofty on the 12th|
|Coldest night||2.2 °C at Coonawarra on the 7th|
|Coolest nights on average||
12.3 °C at Mount Gambier Aero|
12.3 °C at Naracoorte Aerodrome
|Warmest nights on average||23.7 °C at Oodnadatta Airport|
|Warmest night||31.5 °C at Coober Pedy Airport on the 2nd|
|Warmest on average overall||30.0 °C at Moomba Airport|
|Coolest on average overall||18.1 °C at Mount Lofty|
|Wettest overall||249.4 mm at Ernabella (Pukatja)|
|Highest wind gust||83 km/h at Mount Crawford (Mt Crawford AWS) on the 15th|
|Record highest February daily rainfall|
Highest daily rainfall
in February 2011 (mm)
|Hallett||98.0||on the 5th||81.0||on the 5th in 1890||130|
|Whyte Yarcowie||128.4||on the 5th||71.1||on the 5th in 1890||129|
|Lucindale Post Office||57.0||on the 19th||53.3||on the 20th in 1949||127|
|Curramulka||58.0||on the 19th||47.0||on the 14th in 1917||124|
|Yunta (Paratoo)||132.0||on the 5th||80.0||on the 20th in 1987||121|
|Yongala||128.2||on the 5th||101.6||on the 5th in 1890||115|
|Mount Bryan||55.0||on the 5th||52.1||on the 5th in 1973||111|
|American River||77.0||on the 19th||71.1||on the 14th in 1917||110|
|Yunta (Panaramitee)||84.4||on the 6th||69.6||on the 2nd in 1950||105|
|Penneshaw||59.0||on the 19th||52.1||on the 9th in 1969||100|
|Paruna||54.4||on the 16th||48.8||on the 2nd in 1950||91|
|Nullarbor||79.8||on the 18th||36.6||on the 20th in 1930||69|
|Flinders Chase (Rocky River)||62.0||on the 19th||42.4||on the 24th in 1967||51|
|Braemar||80.8||on the 5th||48.3||on the 6th in 1972||47|
|Neptune Island||48.4||on the 19th||43.0||on the 21st in 2000||46|
|Parndana||68.8||on the 19th||35.8||on the 22nd in 2000||31|
|Mount Barry Station||95.0||on the 6th||67.8||on the 11th in 2000||30|
|Glendambo||97.6||on the 5th||76.0||on the 6th in 1997||26|
|Marla Police Station||80.0||on the 6th||76.4||on the 20th in 2003||25|
|Record highest total February rainfall|
for February 2011 (mm)
|Whyte Yarcowie||180.0||113.6||in 1919||135||20.5|
|Yunta (Paratoo)||228.6||145.1||in 1973||126||22.8|
|Tumby Bay||115.0||95.5||in 1938||105||16.4|
|Yunta (Panaramitee)||161.8||141.7||in 1950||105||23.5|
|Mount Eba||170.5||170.4||in 1997||98||19.3|
|Ceduna AMO||61.0||55.8||in 1976||72||13.4|
|Burra Community School||101.6||96.0||in 1973||51||19.2|
|Cowell (Winter Springs)||106.0||100.0||in 1979||42||21.2|
|Marla Police Station||186.8||157.2||in 2000||25||32.1|
|Highest total February rainfall for at least 25 years|
for February 2011 (mm)
Most recent February
at least this wet
|Lucindale Post Office||86.6||93.1||in 1949||62||19.4|
|Kingston SE||62.2||77.8||in 1960||49||18.3|
|American River||82.6||97.0||in 1967||44||18.4|
|Cape Willoughby||67.8||77.5||in 1967||44||18.1|
|Flinders Chase (Rocky River)||66.6||83.2||in 1967||44||19.0|
|Port Vincent||79.8||124.2||in 1969||41||18.8|
|Corny Point||54.2||68.6||in 1969||39||16.3|
|Port Neill||63.0||63.2||in 1969||39||16.3|
|Blanchetown Lock 1||66.2||123.4||in 1973||38||18.7|
|Coober Pedy||100.2||119.5||in 1973||38||23.3|
|Lake Everard||79.2||84.8||in 1973||38||16.9|
|Purnong (Claypans)||58.0||101.7||in 1973||38||18.5|
|Swan Reach||89.6||134.9||in 1973||38||18.6|
|Woomera Aerodrome||101.8||121.2||in 1973||38||20.6|
|Bolivar Treatment Works||58.2||66.2||in 1974||37||15.2|
|Crystal Brook||78.2||140.0||in 1973||37||19.4|
|Edinburgh RAAF||58.8||75.8||in 1974||37||16.4|
|Goolwa Council Depot||80.4||89.4||in 1974||37||20.0|
|Mount Bryan||111.0||122.5||in 1973||37||22.0|
|Orroroo (Black Rock)||78.6||111.6||in 1973||37||18.6|
|Point Pass||77.6||94.2||in 1973||37||22.4|
|Robe Comparison||49.6||62.1||in 1974||37||18.7|
|Adelaide (Salisbury Bowling Club)||57.0||90.6||in 1974||36||18.0|
|Oodla Wirra||124.8||192.0||in 1973||36||26.2|
|Mount Hope (Fairview)||48.4||94.6||in 1976||35||13.5|
|Streaky Bay||71.4||112.8||in 1976||35||13.9|
|Port Kenny (Mount Cooper)||71.6||96.8||in 1976||33||14.0|
|Parawa (Sharon)||98.4||126.2||in 1979||32||33.5|
|Port Kenny||69.2||87.4||in 1976||32||12.2|
|Whyalla (Mullaquana)||86.4||121.5||in 1979||32||21.1|
|Whyalla Aero||91.6||139.8||in 1979||25||25.6|
|Record lowest February daily maximum temperature|
Lowest daily maximum
in February 2011 (°C)
|Marree Comparison||19.0||on the 6th||20.3||on the 3rd in 1950||72||36.8|
|Andamooka||18.7||on the 6th||19.2||on the 28th in 1987||42||35.6|
|Arkaroola||15.4||on the 6th||19.3||on the 28th in 1987||34||33.2|
|Leigh Creek Airport||17.0||on the 6th||18.9||on the 28th in 1987||28||34.4|
|Record lowest February temperature|
in February 2011 (°C)
|Coonawarra||2.2||on the 7th||2.5||on the 25th in 1992||26||11.6|
|Summary statistics for February 2011|
|Northwest (district 16)|
|Coober Pedy Airport||33.1||41.5||1st||21.8||14.8||6th||88.4|
|Marla Police Station||33.5||-2.6||40.4||3rd||21.7||+0.3||14.5||23rd||186.8||32.1||highest||582%|
|Roxby Downs (Olympic Dam Aerodrome)||33.2||40.8||27th||14.1||7th||105.2|
|Woomera Aerodrome||32.9||-0.8||42.4||2nd||20.1||+0.7||13.1||8th||101.8||20.6||v high||494%|
|Far North (district 17)|
|Leigh Creek Airport||34.0||-0.4||41.2||1st||21.5||+1.1||14.0||8th||60.8||24.3||v high||250%|
|Oodnadatta Airport||35.8||-0.8||42.9||1st||23.7||+1.4||16.2||7th||109.0||32.5||v high||335%|
|Western Agricultural (district 18)|
|Coulta (Coles Point)||26.4||34.4||10th||16.2||9.3||6th||55.6|
|Neptune Island||22.0||-0.2||26.5||10th||17.1||+0.5||14.6||6th||58.2||13.9||v high||419%|
|North Shields (Port Lincoln AWS)||24.9||37.4||10th||16.9||14.7||5th||66.0|
|Port Augusta Aero||32.6||45.0||2nd||19.6||14.5||21st||118.6|
|Streaky Bay||29.0||-0.1||37.8||25th||17.5||+1.4||12.5||21st||71.4||13.9||v high||514%|
|Whyalla Aero||28.6||-1.0||40.5||26th||18.5||+0.7||15.1||7th||91.6||25.6||v high||358%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||30.8||44.0||1st||16.6||8.2||21st||116.8|
|Lower North (district 21)|
|Clare High School||28.1||37.7||2nd||16.0||9.1||21st||54.2|
|Port Pirie Aerodrome||31.0||41.0||2nd||18.1||10.9||21st||57.7|
|Port Pirie Nyrstar Comparison||31.2||-0.6||41.4||2nd||19.3||+1.5||13.0||21st||56.9||17.9||v high||318%|
|Snowtown (Rayville Park)||31.0||39.6||26th||15.4||9.0||7th||57.8|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Cape Willoughby||20.7||-1.1||30.9||10th||16.6||+0.3||13.5||6th||67.8||18.1||v high||375%|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||29.1||-0.3||37.5||10th||18.6||+1.4||12.1||6th||43.2||12.4||v high||348%|
|Edinburgh RAAF||29.2||-0.8||37.4||10th||18.1||+1.5||9.5||6th||58.8||16.4||v high||359%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||29.8||-0.7||38.6||26th||16.3||+0.8||7.5||6th||46.4||18.1||high||256%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||23.1||35.8||10th||15.8||10.0||7th||69.4|
|Kuitpo Forest Reserve||24.4||33.4||10th||14.3||8.6||7th||63.8|
|Mount Barker||27.0||+0.3||36.8||2nd||13.3||+1.5||5.1||7th||76.6||25.4||v high||302%|
|Mount Crawford (Mt Crawford AWS)||26.0||34.9||2nd||14.2||7.7||22nd||68.8|
|Parawa (Second Valley Forest AWS)||22.8||33.0||10th||14.2||10.2||6th||90.2|
|Victor Harbor (Encounter Bay)||23.3||35.1||10th||15.4||7.9||7th||81.4|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||30.1||-1.2||40.8||1st||16.4||+2.1||7.3||21st||47.4||17.7||v high||268%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||28.4||38.0||1st||14.7||7.5||7th||51.8|
|Murray Bridge Comparison||28.8||-0.5||39.1||10th||15.8||+1.2||9.2||7th||43.8||18.2||high||241%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||29.1||37.9||2nd||14.6||6.8||21st||31.6|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||23.1||31.8||15th||13.8||6.7||7th||61.2|
|Mount Gambier Aero||24.1||-1.0||32.8||15th||12.3||+0.7||3.8||7th||53.6||26.4||high||203%|
|Robe Comparison||22.0||-0.6||29.7||15th||14.2||+0.5||7.7||7th||49.6||18.7||v high||265%|
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 Tuesday 1 March 2011. 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.