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.

Rainfall

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.

Pastoral Districts

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.

Agricultural Districts

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.

Temperature

The monthly mean October temperature for South Australia as a whole (the average of the maximum and minimum temperatures) was 17.4C, which is 1.3C below the long-term average for South Australia.

Maximum

The area-averaged mean maximum temperature of 24.1C was 1.9C 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 1C below average in the lower south east, grading to more than 3C below average in the north west.

In the Pastoral districts mean maximum temperatures ranged from 23.1C at Yunta Airstrip to 27.6C at Moomba Airport . The highest recorded maximum temperature in the Pastorals for October was 37.4C at Moomba Airport on the 29th. Leigh Creek Airport recorded its lowest October maximum temperature on record with 14.1C on the 15th.

Mean maximum temperatures over the Agricultural districts ranged from 15.8C at Mount Lofty to 24.9C at Port Augusta Aero. The highest maximum recorded during October was 36.3C at Ceduna on the 28th. The lowest was 7.1C at Mount Lofty on the 15th.

Loxton Research Centre recorded its lowest October maximum temperature on record with 12.4C on the 15th

Minimum

Mean minimum temperatures were generally within 1C of the long-term average this October.

Mean minimum temperatures in the pastoral areas ranged from 8.8C at Gluepot to 14.5C at Oodnadatta Airport. The lowest minimum temperature recorded in the Pastorals was 1.0C at Marree on the 16th. The highest minimum temperature was 21.5C at Roxby Downs (Olympic Dam Aerodrome on the 29th.

Over the Agricultural districts mean monthly minimum temperatures ranged from 5.5C at Yongala to 12.4CC at Neptune Island. The lowest minimum temperature recorded during October was -1.8C at Keith (Munkora) on the 25th.

The highest minimum temperature was 22.9C 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.

Further information

Media
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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)
Previous highest
for October
Years of
record
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
Total rainfall
for October 2010 (mm)
Previous highest
for October
Years of
record
Average for
October
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
Total rainfall
for October 2010 (mm)
Most recent higher
for October
Years since
higher
Average for
October
Wharminda 70.7 107.9 in 1924 52 28.0
Cleve 84.0 95.7 in 1975 35 36.5
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
Koonamore 63.4 100.4 in 1976 31 20.4
Poochera 60.6 69.9 in 1975 30 24.6




Record lowest October daily maximum temperature
Lowest daily maximum
temperature
in October 2010 (°C)
Previous lowest
for October
Years of
record
Average for
October
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
Lowest temperature
in October 2010 (°C)
Previous lowest
for October
Years of
record
Average for
October
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
temperature
for October 2010 (°C)
Most recent lower
for October
Years since
lower
Average for
October
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
Maximum temperatures
for October
(°C)
Minimum temperatures
for October
(°C)
Rainfall
for October
(millimetres)
Mean for
October
2010
Diff
from
average
Highest for
October
2010
Mean for
October
2010
Diff
from
average
Lowest for
October
2010
Total for
October
2010
Average
for
October
Rank of
October
2010
Fraction of
October
average
Northwest (district 16)
Andamooka 25.7 -2.4 34.4 22nd 13.2 -0.2 7.8 31st 38.2 19.8 high 193%
Coober Pedy Airport 25.3   36.9 3rd 13.4   7.1 31st 45.8
Ernabella (Pukatja) 25.0   35.1 3rd 12.0   4.7 17th 93.8
Nonning 23.8 -1.2 32.4 28th 10.1 +0.6 3.7 17th 54.6 22.9 v high 238%
Roxby Downs (Olympic Dam Aerodrome) 25.7   34.1 22nd 11.8   5.5 9th 33.6
Tarcoola Aero 26.2   34.7 22nd 11.9   5.7 7th 41.2
Woomera Aerodrome 25.0 -1.2 34.4 22nd 12.4 +0.1 6.5 31st 37.2 16.0 high 233%
Far North (district 17)
Arkaroola 24.4 -2.2 31.2 4th 11.8 +0.2 4.9 2nd 61.3 19.6 v high 313%
Leigh Creek Airport 24.6 -2.0 32.2 22nd 12.2 -0.2 4.9 17th 60.2 19.3 highest 312%
Marree Aero 26.8   33.8 22nd 13.5   7.1 17th 29.4
Marree Comparison 27.5 -1.9 35.0 4th 11.0 -2.4 1.0 16th 33.2 13.4 high 248%
Moomba Airport 27.6   37.4 29th 14.2   7.9 16th 47.4
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)
Ceduna AMO 23.4 -0.4 36.3 28th 9.2 -0.7 2.6 19th 41.6 25.6 high 163%
Cleve 21.3 -1.0 31.7 28th 10.3 +0.2 4.9 7th 84.0 36.5 v high 230%
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
Cummins Aero 21.3   32.6 28th 7.1   1.0 7th 48.0
Elliston 20.8 -0.7 32.8 28th 10.5 -0.6 5.8 6th 64.5 30.4 v high 212%
Kimba 21.9 -1.9 31.5 28th 8.9 -0.2 2.2 31st 48.3 30.7 high 157%
Kyancutta 24.0 -1.2 33.6 28th 7.4 -0.8 0.4 7th 68.4 26.6 v high 257%
Minnipa DPI 23.3   33.3 28th 9.2   1.4 7th 68.6
Neptune Island 17.3 -0.1 21.9 28th 12.4 +0.1 8.4 15th 31.2 27.0 average 116%
North Shields (Port Lincoln AWS) 20.0   33.4 28th 8.3   4.6 7th 28.4
Nullarbor 22.8 -1.6 35.5 21st 9.5 -0.6 2.8 18th 40.0 18.3 v high 219%
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%
Whyalla Aero 22.3 -1.5 32.8 28th 10.2 -0.3 4.7 2nd 59.0 24.3 highest 243%
Wudinna Aero 24.2   34.1 28th 7.3   -1.4 7th 67.0
Upper North (district 19)
Hawker 23.7 -1.9 31.3 22nd 9.3 -0.4 3.2 17th 49.0 24.7 high 198%
Yongala 21.5 -0.2 29.5 22nd 5.5 -0.5 -0.2 7th 66.2 33.9 v high 195%
Northeast (district 20)
Gluepot Reserve (Gluepot) 24.1   33.0 22nd 8.8   1.5 7th 56.7
Yunta Airstrip 23.1   31.9 22nd 9.9   3.9 16th 32.8
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)
Edithburgh 19.3   30.1 11th 10.8   5.1 26th 27.6
Kadina AWS 22.2   30.8 28th 6.7   0.6 8th 48.0
Maitland 20.8 -0.5 29.0 11th 10.3 +0.4 5.4 7th 49.6 42.4 average 117%
Minlaton Aero 21.0   31.6 28th 8.4   2.4 7th 52.0
Stenhouse Bay 19.5   30.0 11th 11.5   7.3 14th 24.0
Warooka 20.4 -0.2 27.8 28th 9.9 -0.2 4.8 7th 30.6 35.8 average 85%
Kangaroo Island (district 22B)
Cape Borda 17.2   24.1 11th 9.5   6.1 31st 35.8
Cape Willoughby 17.4 -0.2 25.4 21st 11.7 +0.3 8.0 15th 34.2 42.4 average 81%
Kingscote Aero 19.9   28.6 11th 5.8   -0.3 25th 28.4
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%
Adelaide Airport 20.5 -0.5 31.1 11th 10.6 0.0 6.0 7th 34.0 38.1 average 89%
Edinburgh RAAF 21.7 -0.3 30.7 28th 10.0 0.0 3.1 7th 35.4 39.7 average 89%
Parafield Airport 22.5 +0.8 31.1 11th 9.7 -0.4 1.6 7th 31.0 42.3 average 73%
Roseworthy AWS 21.9   30.3 28th 7.0   0.2 7th 30.4
County Light (district 23B)
Nuriootpa Viticultural 20.0   27.7 11th 7.9   0.6 7th 31.6
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 Barker 20.0 +0.6 27.2 11th 7.0 -0.2 2.0 25th 43.8 66.9 low 65%
Mount Crawford (Mt Crawford AWS) 17.7   24.5 28th 8.4   3.4 16th 37.4
Mount Lofty 15.8   23.7 11th 7.7   2.5 16th 46.0
Noarlunga 20.5   30.1 28th 11.3   6.9 7th 36.6
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%
Renmark Aero 23.8   32.6 29th 9.3   3.2 7th 67.0
Lower Murray Valley (district 24B)
Eudunda 19.9 -0.7 26.9 11th 7.8 -0.2 1.8 7th 44.0 40.5 average 109%
Meningie 20.6 +0.1 28.4 28th 9.3 -0.1 3.7 25th 33.1 39.2 average 84%
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%
Strathalbyn Racecourse 20.3   29.6 11th 8.3   3.2 2nd 41.6
Murray Mallee (district 25A)
Karoonda 22.3   30.2 22nd 7.5   1.4 7th 43.1 32.7 high 132%
Upper Southeast (district 25B)
Keith 21.7 +0.2 30.5 29th 8.2 0.0 1.0 24th 18.8 42.4 low 44%
Keith (Munkora) 21.7   31.2 29th 6.0   -1.8 25th 20.2
Lameroo (Austin Plains) 22.5   31.5 29th 7.1   0.5 7th 33.4
Lameroo Comparison 22.3 -0.2 30.4 29th 8.3 +0.5 2.2 7th 35.2 37.2 average 95%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 18.8   26.6 11th 8.9   4.5 25th 33.2
Coonawarra 19.9 +0.6 29.0 29th 7.3 +0.2 0.4 24th 19.8 45.5 low 44%
Mount Gambier Aero 18.8 +0.9 28.7 29th 6.9 -0.2 1.2 25th 57.4 61.7 average 93%
Naracoorte Aerodrome 20.4   28.7 29th 7.0   -0.1 24th 37.0
Padthaway South 20.7   29.8 22nd 7.9   1.3 24th 32.8
Robe Airfield 18.7   28.1 11th 8.0   0.8 25th 36.6
Robe Comparison 18.1 +0.5 23.5 11th 9.9 -0.4 6.0 6th 38.8 44.3 average 88%

Notes

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 decile ranking (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.

Further information

Media
(03) 9669 4057
Enquiries