Monday, 1 November 2010 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
South Australia in October 2010
The wet continues in northern South Australia.
- Rainfall was generally above average, tending well above average in the north. Rainfall in southern areas tended to be below average, particularly in the southeast.
- The Pastoral Districts received 2 to 4 times their average October rainfall, with the middle of the month being particularly wet.
- 3 locations set new highest daily rainfall records for October.
- 4 sites set new monthly rainfall records for October.
- Temperatures in the pastoral areas were below average, with maximum temperatures well below average in the north.
- Some sites set new record lowest mean daily maximum temperature records for October, while the southeast tended have warmer than average maximum temperatures.
It was a dry start to the month in southern areas, though wetter in the north. A low pressure trough crossed SA mid month, producing widespread rainfall over central and southern Australia.
Rainfall totals were well above average across the Pastoral Districts, with most areas receiving up to 4 times their monthly October average. Two new October daily rainfall records were set at Mount Dare of 53.8mm & Mount Barry Stn of 44.0mm both on the 15th. Rainfall totals ranged from about 30 mm to 90 mm. Oodnadatta received 46.4mm for the month, with is more than 3 times its monthly October average of 14.0 mm.
Rainfall totals were above average across Eyre Peninsula and the Flinders Ranges and Riverland, but remaining areas were near average. Some parts of the Mount Lofty Ranges and much of the south-east had below average rainfall. Wirrulla in the Western Agricultural set a new daily rainfall record for the month, of 39.0mm on the 28th.
Rainfall totals were generally between 20 and 50mm across the agricultural districts, near 50mm in the Mount Lofty Ranges. A large area of Eyre Peninsula, the mid north & the Riverland near the eastern border recorded above 50mm.
For the growing season as a whole (April to October) rainfall was generally average to above average across all of the Agricultural Districts. Year to date rainfall totals are generally average to above average, increasing to an area of highest on record in the far northeast of South Australia. The rest of the northern areas had very much above average falls.Some sites had their highest total October rainfall on record. Some sites had their highest total October rainfall for at least 25 years. Some sites had their lowest total October rainfall on record. Some sites had their highest October daily rainfall on record. See a map of rainfall deciles.
The monthly mean October temperature for South Australia as a whole (the average of the maximum and minimum temperatures) was 17.4°C, which is 1.3°C below the long-term average for South Australia.
The area-averaged mean maximum temperature of 24.1°C was 1.9°C below the long-term October average for South Australia as a whole.
The coldest October on record was in 1975. This month is also the first October since 2003 to record a below average mean maximum temperature. All October's since 2003 had been warmer than average for South Australia until this year.
Mean maximum temperatures at individual locations varied, but were well below average for October, with temperatures from 1°C below average in the lower south east, grading to more than 3°C below average in the north west.
In the Pastoral districts mean maximum temperatures ranged from 23.1°C at Yunta Airstrip to 27.6°C at Moomba Airport . The highest recorded maximum temperature in the Pastorals for October was 37.4°C at Moomba Airport on the 29th. Leigh Creek Airport recorded its lowest October maximum temperature on record with 14.1°C on the 15th.
Mean maximum temperatures over the Agricultural districts ranged from 15.8°C at Mount Lofty to 24.9°C at Port Augusta Aero. The highest maximum recorded during October was 36.3°C at Ceduna on the 28th. The lowest was 7.1°C at Mount Lofty on the 15th.
Loxton Research Centre recorded its lowest October maximum temperature on record with 12.4C on the 15th
Mean minimum temperatures were generally within 1°C of the long-term average this October.
Mean minimum temperatures in the pastoral areas ranged from 8.8°C at Gluepot to 14.5°C at Oodnadatta Airport. The lowest minimum temperature recorded in the Pastorals was 1.0°C at Marree on the 16th. The highest minimum temperature was 21.5°C at Roxby Downs (Olympic Dam Aerodrome on the 29th.
Over the Agricultural districts mean monthly minimum temperatures ranged from 5.5°C at Yongala to 12.4C°C at Neptune Island. The lowest minimum temperature recorded during October was -1.8°C at Keith (Munkora) on the 25th.
The highest minimum temperature was 22.9°C at Port Pirie Aerodrome on the 29th.
Some sites had their coldest October day (lowest maximum temperature) on record.
Some sites had their lowest October temperature on record.
Some sites had their lowest October mean daily minimum temperature for at least 25 years.
|Extremes in October 2010|
|Hottest day||37.4 °C at Moomba Airport on the 29th|
|Warmest days on average||27.6 °C at Moomba Airport|
|Coolest days on average||15.8 °C at Mount Lofty|
|Coldest day||7.1 °C at Mount Lofty on the 15th|
|Coldest night||-1.8 °C at Keith (Munkora) on the 25th|
|Coolest nights on average||5.5 °C at Yongala|
|Warmest nights on average||14.5 °C at Oodnadatta Airport|
|Warmest night||22.9 °C at Port Pirie Aerodrome on the 29th|
|Wettest overall||117.4 mm at Melrose|
|Highest wind gust||102 km/h at Marree Aero on the 15th|
|Record highest October daily rainfall|
Highest daily rainfall
in October 2010 (mm)
|Wirrulla||39.0||on the 28th||36.3||on the 19th in 1962||87|
|Mount Dare||53.8||on the 15th||47.0||on the 3rd in 1974||58|
|Mount Barry Station||44.0||on the 15th||29.0||on the 14th in 1985||27|
|Record highest total October rainfall|
for October 2010 (mm)
|Whyalla Aero||59.0||58.8||in 1980||31||24.3|
|Mount Barry Station||87.0||56.4||in 2005||27||17.4|
|Beltana Roadhouse||74.2||57.8||in 1986||25||21.2|
|Leigh Creek Airport||60.2||48.2||in 1986||25||19.3|
|Highest total October rainfall for at least 25 years|
for October 2010 (mm)
Most recent higher
|Orroroo (Black Rock)||80.6||104.3||in 1976||34||28.4|
|Port Neill||54.7||66.0||in 1974||34||28.4|
|Yunta (Panaramitee)||74.0||89.0||in 1976||34||22.4|
|Cleve Aerodrome||82.2||99.2||in 1975||33||29.3|
|Mount Dare||79.4||88.6||in 1974||33||17.5|
|Whyte Yarcowie||84.4||144.5||in 1976||33||33.5|
|Booleroo Centre (Willowie)||71.7||100.2||in 1976||32||29.7|
|Record lowest October daily maximum temperature|
Lowest daily maximum
in October 2010 (°C)
|Leigh Creek Airport||14.1||on the 15th||14.5||on the 22nd in 1995||27||26.6|
|Loxton Research Centre||12.4||on the 15th||12.5||on the 21st in 1995||27||24.0|
|Record lowest October temperature|
in October 2010 (°C)
|Marree Comparison||1.0||on the 16th||3.6||on the 3rd in 1957||71||13.4|
|Parafield Airport||1.6||on the 7th||= 1.6||on the 11th in 2000||54||10.1|
|Lowest October mean daily minimum temperature for at least 25 years|
Mean daily minimum
for October 2010 (°C)
Most recent lower
|Marree Comparison||11.0||10.7||in 1946||63||13.4|
|Streaky Bay||10.0||9.6||in 1966||43||11.4|
|Summary statistics for October 2010|
|Northwest (district 16)|
|Coober Pedy Airport||25.3||36.9||3rd||13.4||7.1||31st||45.8|
|Roxby Downs (Olympic Dam Aerodrome)||25.7||34.1||22nd||11.8||5.5||9th||33.6|
|Far North (district 17)|
|Leigh Creek Airport||24.6||-2.0||32.2||22nd||12.2||-0.2||4.9||17th||60.2||19.3||highest||312%|
|Oodnadatta Airport||26.7||-3.6||37.0||3rd||14.5||-0.6||8.4||8th||46.4||14.0||v high||331%|
|Western Agricultural (district 18)|
|Cleve Aerodrome||21.0||31.9||28th||9.4||5.0||7th||82.2||29.3||v high||281%|
|Coulta (Coles Point)||20.3||31.4||28th||8.9||4.7||24th||37.4|
|North Shields (Port Lincoln AWS)||20.0||33.4||28th||8.3||4.6||7th||28.4|
|Port Augusta Aero||24.9||35.8||22nd||10.9||5.9||2nd||68.8|
|Streaky Bay||22.8||0.0||32.5||11th||10.0||-1.4||6.0||8th||83.6||26.5||v high||315%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||24.1||33.0||22nd||8.8||1.5||7th||56.7|
|Lower North (district 21)|
|Clare High School||19.4||27.7||22nd||7.9||3.2||19th||87.4|
|Port Pirie Aerodrome||23.3||31.5||22nd||9.7||1.2||7th||47.5|
|Port Pirie Nyrstar Comparison||23.5||-1.0||31.0||22nd||11.8||-0.1||6.0||7th||64.5||33.2||high||194%|
|Snowtown (Rayville Park)||22.7||31.9||22nd||6.1||0.2||7th||40.0|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||21.4||-0.4||30.0||11th||11.7||+0.3||6.3||7th||29.2||43.8||average||67%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||21.5||-0.3||29.1||11th||7.5||-0.8||-0.1||7th||33.7||44.3||average||76%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||20.2||29.6||11th||10.8||5.6||14th||39.6|
|Kuitpo Forest Reserve||18.1||27.1||11th||9.1||4.6||16th||42.0|
|Mount Crawford (Mt Crawford AWS)||17.7||24.5||28th||8.4||3.4||16th||37.4|
|Parawa (Second Valley Forest AWS)||16.4||25.4||11th||8.8||5.1||25th||74.4|
|Victor Harbor (Encounter Bay)||19.8||29.7||11th||8.4||2.2||25th||44.8|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||23.4||-0.6||31.9||29th||8.6||+0.3||3.5||8th||52.2||26.7||high||196%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||21.9||30.7||11th||6.1||0.1||2nd||51.4|
|Murray Bridge Comparison||22.8||+0.1||30.5||11th||8.7||-0.3||3.8||2nd||59.4||34.0||high||175%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||22.5||31.5||29th||7.1||0.5||7th||33.4|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||18.8||26.6||11th||8.9||4.5||25th||33.2|
|Mount Gambier Aero||18.8||+0.9||28.7||29th||6.9||-0.2||1.2||25th||57.4||61.7||average||93%|
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 Monday 1 November 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.