Monday, 1 March 2010 - Monthly Climate Summary for South Australia - Product code IDCKGC23R0
The highlight this month has been the rainfall events in the far northeast of South Australia. The month saw bursts of widespread thunderstorm activity in the north and northeast, with localised heavy falls producing significant totals at many locations. The month finished with a low pressure system moving down over the northeast bringing some widespread rain along the northern border.
Further south, strong high pressure systems in the bight kept cold frontal activity south of the state.
For February, rainfall was near average tending slightly below average in the south of the northwest pastoral district around Tarcoola, but tended above average in the northern Flinders Ranges and in the northeast pastoral district, with some record February rainfall totals in the far northeast of the state. Rainfall totals were highly variable across the districts, but generally ranged from 20 to 50mm. The highest monthly total was 239.6mm at Moomba Airport, a record February rainfall total for Moomba, and second highest monthly rainfall total for any time of year at Moomba, after 439mm recorded in January 1974.
Rainfall over the agricultural districts was generally near to slightly above average, though northern Eyre Peninsula and the Mount Lofty Ranges and southern Flinders Ranges tended below average.
Rainfall totals were highly variable. Some locations in the southern Flinders Ranges, equalled their lowest recorded rainfall for February with no recorded rainfall. The majority of rainfall amounts were in the range 5 to 15mm, with eastern districts tending to have totals of 15 to 30mm for the month. The highest total in the agricultural districts was 45.0mm at Mount Gambier Aerodrome in the South East district.Some sites had their highest total February rainfall for at least 25 years. Some sites had their lowest total February rainfall on record. See a map of rainfall deciles.
Temperatures were generally well above average for most of the state, apart from the far north and northeast where temperatures were generally cooler than average in the cloudy conditions associated with the above average rainfall in those areas.
Maximum temperatures were generally 1.5 to 2.5 degrees above average across the state, apart from the northeast, which tended up to 3°C below average. Some locations in the Adelaide region were over 3°C warmer than average. The numbers of hot (days with maximum temperatures > 35°C) and very hot days (days with maximum temperatures > 40°C) was about twice the average for this month in many locations not impacted by cloudy conditions and rainfall.
Mean maximum temperatures over the pastoral districts of the state ranged from 31.7°C at Yunta in the North East district to 36.7°C at Tarcoola in the Northwest district. The highest recorded maximum temperature in the pastoral districts for February was 42.7°C at the Tarcoola on the 9th of the month.
Mean maximum temperatures over the agricultural districts of the state ranged from 22.5°C at Cape Willoughby on Kangaroo Island to 34.8°C at Port Augusta Aerodrome in the Western Agricultural district. The highest recorded maximum temperature for February in the agricultural areas was 43.2°C at Kyancutta on the 9th of the month.
Mean monthly overnight minimum temperatures were generally 1.5 to 2.5 degrees above average across the state.
In the pastoral districts these ranged from 17.1°C at Gluepot Reserve in the North East district to 23.8°C at Moomba Airport in the Far North district. The lowest recorded minimum temperature for February in the pastoral districts was 10.6°C at the Gluepot Reserve in the North East district on the 10th of the month, with the highest being 28.8°C at Oodnadatta Airport on the 21st .
Across the agricultural areas the mean minimum temperatures this month ranged from 12.6°C at Naracoorte in the Lower Southeast district to 20.3°C at Port Augusta Aerdrome. The lowest recorded daily minimum temperature for February was 3.5°C at Keith on the 23rd.
|Extremes in February 2010|
|Hottest day||43.2 °C at Kyancutta on the 9th|
|Warmest days on average||36.7 °C at Tarcoola Aero|
|Coolest days on average||22.5 °C at Cape Willoughby|
|Coldest day||16.3 °C at Parawa (Second Valley Forest AWS) on the 28th|
|Coldest night||3.5 °C at Keith (Munkora) on the 23rd|
|Coolest nights on average||12.6 °C at Naracoorte Aerodrome|
|Warmest nights on average||23.8 °C at Oodnadatta Airport|
|Warmest night||30.0 °C at Port Pirie Nyrstar Comparison on the 9th|
|Wettest overall||219.2 mm at Moomba Airport|
|Highest wind gust||100 km/h at Nullarbor on the 7th|
|Highest total February rainfall for at least 25 years|
for February 2010 (mm)
Most recent higher
|Mount Dare||117.8||345.2||in 1976||29||27.0|
|Record lowest total February rainfall|
for February 2010 (mm)
|Price||0.0||= 0.0||in 2009||66||19.4|
|Summary statistics for February 2010|
|Northwest (district 16)|
|Coober Pedy Airport||35.7||40.4||21st||22.6||17.6||5th||5.8|
|Marla Police Station||35.5||-0.7||40.2||21st||22.1||+0.7||18.0||16th||32.8||25.7||average||128%|
|Roxby Downs (Olympic Dam Aerodrome)||36.1||40.3||21st||21.6||15.5||7th||12.6|
|Far North (district 17)|
|Leigh Creek Airport||33.8||-0.7||38.2||26th||21.2||+0.8||15.5||6th||41.0||22.8||high||180%|
|Western Agricultural (district 18)|
|Ceduna AMO||30.3||+2.1||40.8||7th||16.0||+1.0||10.4||25th||0.2||12.7||v low||2%|
|Coulta (Coles Point)||28.1||37.2||9th||16.5||12.8||23rd||22.6|
|North Shields (Port Lincoln AWS)||26.4||34.3||20th||17.1||13.6||26th||20.0|
|Port Augusta Aero||34.8||41.5||9th||20.3||14.7||6th||4.8|
|Whyalla Aero||30.6||+1.0||40.0||9th||19.0||+1.3||10.4||7th||0.2||23.6||v low||1%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||33.3||39.7||10th||17.1||10.6||24th||37.3|
|Lower North (district 21)|
|Clare High School||31.5||38.1||10th||16.3||10.7||5th||1.0|
|Port Pirie Aerodrome||33.7||40.4||9th||18.1||11.8||5th||0.8|
|Port Pirie Nyrstar Comparison||33.4||+1.6||40.5||9th||19.8||+2.0||14.0||5th||1.4||17.6||low||8%|
|Snowtown (Rayville Park)||33.1||41.7||9th||15.3||8.3||24th||29.0|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||31.4||+2.1||39.0||9th||19.0||+1.9||13.6||6th||5.6||12.4||average||45%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||32.2||+1.7||40.2||9th||16.8||+1.3||10.5||5th||12.7||17.8||average||71%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||25.9||39.3||9th||16.6||10.4||6th||8.8|
|Kuitpo Forest Reserve||27.0||36.6||8th||15.1||9.8||6th||6.6|
|Mount Crawford (Mt Crawford AWS)||28.7||37.2||9th||15.0||8.4||6th||8.2|
|Parawa (Second Valley Forest AWS)||24.9||35.8||9th||14.8||11.8||7th||17.6|
|Victor Harbor (Encounter Bay)||25.3||36.8||9th||15.2||8.7||7th||13.2|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||33.1||+1.8||38.7||10th||17.2||+3.0||10.1||23rd||25.0||16.6||high||151%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||31.1||41.0||9th||15.3||9.8||7th||10.0|
|Murray Bridge Comparison||31.5||+2.2||41.2||9th||15.9||+1.3||11.3||7th||11.7||18.0||average||65%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||32.5||38.9||10th||15.7||7.4||23rd||24.2|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||25.4||33.4||3rd||14.2||9.6||23rd||11.0|
|Mount Gambier Aero||27.7||+2.6||37.7||2nd||12.9||+1.3||8.4||24th||45.0||25.9||high||174%|
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 1 pm on Monday 1 March 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.