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Friday, 1 March 2013 - Monthly Climate Summary for South Australia - Product code IDCKGC23R0
Rainfall across much of South Australia during February was mostly near average tending above average for most areas. Averaged across the state as a whole, February 2013 was the driest February in 4 years. Much of the month was without significant rainfall for many locations. The wettest period for most districts occurred at the end of the month as an upper level trough linked with Tropical Cyclone Rusty generated broad areas of moderate rain across most of the state.
February 2013 rainfall totals over the agricultural districts were average to above average, generally between 15 to 25 mm, with higher totals in excess of 30 mm across the Flinders Ranges.
Yongala, in the Flinders Ranges, reported the highest February rainfall total for the state this month, with 70.4 mm, all of which was recorded on the 19th from thunderstorms and resulted in the wettest day for any location in the state over half of which was observed on the 15th as a low pressure trough combined with high humidity produced showers and thunderstorms across the central and eastern districts.
The Pastoral districts were mostly dry up until the last week of February when most rainfall was observed as an upper level trough produced showers and thunderstorms across northern parts of the state. Monthly totals generally ranged from 15 to 25 mm, with higher totals in the 40 to 60 mm range for some locations in the Far North. The wettest overall in Pastorals was at Leigh Creek (Maynards Well) with 69.0 mm.
See a map of rainfall deciles.
The mean temperature (the average of the maximum and minimum temperatures) for South Australia as a whole through February 2013 was 0.9 °C above the long-term average, the warmest February for the state since 2009.In comparison, February 2012 was 0.9 °C below average.
Mean maximum temperatures over South Australia were warmer than average, with the eastern half seeing day time temperatures average in excess of 1.0°C above normal.
The warmest periods for most districts occurred through between the 6th and 10th and between the 17th and 20th of the month. The hottest day for any location around the state was recorded at Marree Comparison when the maximum temperature reached 43.5 °C on the 9th. A high pressure system located in the Tasman Sea directed light to moderate northerly winds over South Australia, resulting in hot to very hot conditions for most of the State through out the third week of February.
Average daily maximum temperatures over the pastoral districts ranged from 23.4 °C at Cape Willoughby on Kangaroo Island to 38.7 °C at Marree Comparison and Moomba Airport in the Far North Pastoral.
See a map of maximum temperature anomalies.
Mean minimum temperatures were generally above average across South Australia through February, with some coastal regions and locations in the northern Flinders Ranges seeing nights being warmer than average by more than 1 °C. Monthly average minimum temperatures ranged from 12.9 °C at Naracoorte Aerodrome in the Southeast to 23.0 °C at Oodnadatta Airport in the Far North
The coldest nights occurred through the first and second weeks of the month as high pressure systems in the Great Australian Bight directed fresh southerly flow across southern parts of the state. The minimum temperature at Nuriootpa Viticultural fell to 4.3 °C on the 1st, the coldest night for any location in the state this month. The warmest nights were later in the month as warm to hot northerly winds moved across the South Australia. Noarlunga observed the warmest night for any location across the state, with a minimum of 29.5 °C.Some sites had their highest February mean daily minimum temperature on record. See a map of minimum temperature anomalies.
|Extremes in February 2013|
|Hottest day||43.5 °C at Marree Comparison on the 9th|
|Warmest days on average||
38.7 °C at Marree Comparison|
38.7 °C at Moomba Airport
|Coolest days on average||23.4 °C at Cape Willoughby|
|Coldest day||14.7 °C at Mount Lofty on the 27th|
|Coldest night||4.3 °C at Nuriootpa Viticultural on the 1st|
|Coolest nights on average||12.9 °C at Naracoorte Aerodrome|
|Warmest nights on average||23.0 °C at Oodnadatta Airport|
|Warmest night||29.5 °C at Noarlunga on the 18th|
|Warmest on average overall||30.8 °C at Moomba Airport|
|Coolest on average overall||19.7 °C at Mount Lofty|
|Wettest overall||70.4 mm at Yongala|
|Driest overall||0 mm at Marla Police Station|
|Wettest day||54.2 mm at Beltana Roadhouse on the 28th|
|Highest wind gust||
76 km/h at Sellicks Hill (Mount Terrible Radar) on the 19th|
76 km/h at Marree Aero on the 21st
|Record highest February mean daily minimum temperature|
Mean daily minimum
for February 2013 (°C)
|Robe Comparison||16.1||15.9||in 2001||128||13.7|
|Summary statistics for February 2013|
|Northwest (district 16)|
|Coober Pedy Airport||35.5||40.7||20th||21.7||13.4||1st||7.8|
|Roxby Downs (Olympic Dam Aerodrome)||36.0||41.0||7th||20.6||12.9||2nd||20.2|
|Far North (district 17)|
|Leigh Creek Airport||35.8||+1.4||40.8||8th||20.6||+0.2||12.2||2nd||45.6||28.7||high||159%|
|Western Agricultural (district 18)|
|Coulta (Coles Point)||28.6||+1.2||37.6||17th||15.8||+0.3||10.7||3rd||2.4|
|Neptune Island||24.4||+2.2||31.2||18th||18.1||+1.5||14.2||2nd||0.4||13.6||v low||3%|
|North Shields (Port Lincoln AWS)||27.7||+1.8||39.8||18th||16.4||+0.2||12.4||5th||3.6|
|Port Augusta Aero||34.3||42.7||6th||19.6||13.2||1st||10.8|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||33.8||41.1||6th||15.8||8.8||2nd||16.4|
|Lower North (district 21)|
|Clare High School||30.8||37.0||6th||15.3||10.0||2nd||36.2|
|Port Pirie Aerodrome||33.1||40.7||6th||17.4||9.1||1st||17.2|
|Snowtown (Rayville Park)||32.7||39.5||6th||15.6||10.1||4th||41.8|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Parndana Cfs AWS||27.9||38.6||17th||14.6||9.9||5th||4.0|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||31.1||+1.7||40.5||18th||18.2||+1.0||11.9||1st||11.8||13.2||average||89%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||32.0||+1.6||40.0||18th||15.5||0.0||5.4||1st||20.8||18.1||average||115%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||27.2||40.1||18th||16.4||11.8||11th||9.8|
|Kuitpo Forest Reserve||27.0||36.5||18th||15.1||9.5||1st||20.8|
|Mount Crawford (Mt Crawford AWS)||28.3||36.3||18th||14.7||8.3||1st||14.8|
|Parawa (Second Valley Forest AWS)||24.9||36.3||17th||15.3||10.4||1st||16.6|
|Victor Harbor (Encounter Bay)||26.7||39.6||18th||14.9||8.5||6th||19.4|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||33.1||+1.8||39.4||6th||15.8||+1.4||9.0||2nd||13.2||17.0||average||78%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||31.2||40.7||18th||14.8||10.4||5th||15.2|
|Murray Bridge Comparison||31.7||+2.4||40.7||18th||16.0||+1.4||11.0||1st||18.2||18.2||average||100%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||32.2||40.2||6th||14.1||5.0||1st||17.2|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||26.8||+2.3||36.9||17th||15.3||+1.7||9.7||11th||11.2|
|Mount Gambier Aero||28.7||+3.6||40.3||18th||13.7||+2.0||8.7||1st||15.2||26.0||average||58%|
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 8 am on Friday 1 March 2013. 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.
The ACORN-SAT dataset is being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.