South Australia in winter 2012: Drier than average for most, with cold nights.

This statement was prepared before all data for the period were available. This may affect some of the statistics presented.
  • Below average winter rainfall in the west, slightly above average in the east.
  • Near average daytime temperatures, but record coldest winter nights for some parts of the pastoral districts.

Rainfall

Winter 2012 rainfall was below average across the State as a whole, with parts of the northwest pastoral being very much below average. Average rainfall was observed across most of the eastern half of the State, with some parts in the far northeast and southeast observing above average winter rainfall. Rainfall totals were above average across parts of the coastal and agricultural districts in June, tending to very much above average in parts of the far northeast of the state. The northwest pastoral saw very much below average rainfall through June. Drier than normal conditions persisted through July for the western half of the state, while average to above average rainfall conditions remained in place for eastern districts. Drier conditions continued across the western districts and extended into the eastern half of the state through the rest of winter, with all but the southeast coastal areas seeing below average August rainfall.

The most significant rainfall event for winter occurred on June 21st and 22nd. A number of locations around the Mount Lofty Ranges observed record highest winter daily rainfall totals on these days as cold frontal system and an associated cloud band brought widespread heavy rainfall to southern parts of the state. Wirrabara Forest observed the wettest winter day on June 22nd, reporting a 24 hour total of 72.6mm.

Pastoral Districts

Rainfall totals for winter as a whole were well below average across the western pastorals tending to above average across the eastern pastoral. Rainfall totals ranged from around 20 to 60mm in the Northeast and Upper North while totals generally ranged between 10 and 20mm in the Northwest. Yardea had the highest winter rainfall total, in the far south of the northwest pastorals with 77.2 mm, the driest winter there since 2008, and below the average for that location for winter of 97.9mm.

Agricultural Districts

Rainfall totals in the agricultural districts were average, tending to above average about coastal parts in the southeast of the state, though mostly below average across western agricultural districts. Rainfall totals in the agricultural areas generally ranged from 100 to 180 mm in the Western Agricultural and Upper North districts, increasing to 200 to 300 mm about coastal locations and the Mount Lofty ranges. The wettest location overall in the agricultural districts was at Bridgewater in the Mount Lofty ranges with a winter rainfall total of 490.3 mm.

Some sites had their highest total winter rainfall on record.
Some sites had their highest total winter rainfall for at least 25 years.
Some sites had their lowest total winter rainfall for at least 25 years.
Some sites had their highest winter daily rainfall on record.
See a map of rainfall deciles.

Temperature

The mean temperature (the average of the maximum and minimum temperatures) for South Australia as a whole in winter 2012 was 0.2 C below the long-term average, the coldest winter for the state since 2010. By contrast winter 2011 was 1.0 C warmer than average.

Maximum

Maximum temperatures were near the long term average across South Australia as a whole for winter 2012. Maximum temperatures were below average across most of South Australia through June but tended warmer than average for eastern parts of the state through July. The end of winter saw daytime temperatures over South Australia generally above average, apart from the southeast coastal districts; several locations were up 1.4 C above the August average across the northwest parts of the state.

Average maximum temperatures ranged from 9.5C at Mount Lofty to 20.7C at Moomba Airport and Oodnadatta Airport in the Far North. The hottest winter day in 2012 was on August 22nd with 34.3C at Moomba Airport, the warmest winter day there since 2009. The coldest day in winter 2012 in South Australia was 5.0C recorded at Mount Lofty on August 23rd.

See a map of maximum temperature anomalies.

Minimum

Overnight minimum temperatures through winter 2012 across South Australia have been the coolest since 1997. Averaged across the State as a whole, minimum temperatures were 0.8 C colder than normal. Agricultural areas saw near average night-time temperatures, but otherwise it was in excess of 3 C colder than average for much of the state.

Apart from a few coastal locations, June minimum temperatures were very much below average across most parts of South Australia. Cool night time conditions continued into July with some parts of the state reporting lowest July minimum temperatures on record. Below minimum temperatures persisted through to the end of winter where, mean minimum temperatures were widely below average across South Australia.

Winter average minimum temperatures ranged from 2.5C at Marla Police Station, Yongala and Yunta Airstrip to 11.6C at Neptune Island. The lowest recorded minimum temperature through winter was -7.5C at Yunta Airstrip on July 6th; the warmest night was 16.8 C at Moomba Airport on August 23rd. Marla Police station observed its record lowest winter temperature of -5.0C on July 7th, and Leigh Creek Airport and Nullarbor observed record lowest winter mean daily minimum temperatures; respectively observing an average minimum of 3.9C and 4.7C.

Some sites had their lowest winter temperature on record.
Some sites had their lowest winter mean daily minimum temperature on record.
Some sites had their lowest winter mean daily minimum temperature for at least 25 years.
See a map of minimum temperature anomalies.

Further information

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Extremes in winter 2012
Hottest day 34.3 °C at Moomba Airport on 22 Aug
Warmest days on average 20.7 °C at Moomba Airport
20.7 °C at Oodnadatta Airport
Coolest days on average 9.5 °C at Mount Lofty
Coldest day 5.0 °C at Mount Lofty on 23 Aug
Coldest night -7.5 °C at Yunta Airstrip on 6 Jul
Coolest nights on average 2.5 °C at Marla Police Station
2.5 °C at Yongala
2.5 °C at Yunta Airstrip
Warmest nights on average 11.6 °C at Neptune Island
Warmest night 16.8 °C at Moomba Airport on 23 Aug
Warmest on average overall 13.6 °C at Neptune Island
Coolest on average overall 8.0 °C at Yongala
Wettest overall 490.3 mm at Bridgewater
Driest overall 0.2 mm at Ernabella (Pukatja)
Wettest day 72.6 mm at Wirrabara Forest on 22 Jun
Highest wind gust 107 km/h at Neptune Island on 13 Jun

Record highest winter daily rainfall
Highest daily rainfall
in winter 2012 (mm)
Previous wettest
for winter
Years of
record
Belair (State Flora Nursery) 70.4 on 21 Jun 63.8 on 2 Jul 1986 125
Kalangadoo 52.4 on 22 Jun 49.5 on 13 Jul 1940 98
Blackwood (Wittunga) 65.4 on 21 Jun 54.8 on 27 Jun 2003 34
Laura (Beetaloo Reservoir) 53.6 on 22 Jun 51.2 on 15 Jun 1981 32
Adelaide (Clarence Gardens Bowling Club) 55.0 on 21 Jun 39.6 on 23 Jun 1981 31



Record highest total winter rainfall
Total rainfall
for winter 2012 (mm)
Previous wettest
for winter
Years of
record
Average for
winter
Finniss 359.0 353.0 in 1981 99 188.6

Highest total winter rainfall for at least 25 years
Total rainfall
for winter 2012 (mm)
Most recent winter
at least this wet
Years since
wetter
Average for
winter
Port Elliot Caravan Park 255.7 333.5 in 1981* 27 194.1

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported.




Lowest total winter rainfall for at least 25 years
Total rainfall
for winter 2012 (mm)
Most recent winter
at least this dry
Years since
drier
Average for
winter
Nonning 18.3 13.4 in 1914 98 77.3
Nundroo 38.8 32.2 in 1977* 34 128.6
Mount Bryan 84.2 60.0 in 1982* 27 162.9

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.




Record lowest winter temperature
Lowest temperature
in winter 2012 (°C)
Previous coolest
for winter
Years of
record
Average for
winter
Marla Police Station -5.0 on 7 Jul -4.0 on 21 Jun 2007 27 5.6



Record lowest winter mean daily minimum temperature
Mean daily minimum
temperature
for winter 2012 (°C)
Previous coolest
for winter
Years of
record
Average for
winter
Leigh Creek Airport 3.9 4.0 in 1989 28 5.4
Nullarbor 4.7 = 4.7 in 1997 25 5.7

Lowest winter mean daily minimum temperature for at least 25 years
Mean daily minimum
temperature
for winter 2012 (°C)
Most recent winter
at least this cool
Years since
cooler
Average for
winter
Woomera Aerodrome 5.4 4.8 in 1949 63 6.4
Oodnadatta Airport 4.9 4.4 in 1976* 26 6.6

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.




Summary statistics for winter 2012
Maximum temperatures
for winter
(°C)
Minimum temperatures
for winter
(°C)
Rainfall
for winter
(millimetres)
Mean for
winter
2012
Diff
from
average
Highest for
winter
2012
Mean for
winter
2012
Diff
from
average
Lowest for
winter
2012
Total for
winter
2012
Average
for
winter
Rank of
winter
2012
Fraction of
winter
average
Northwest (district 16)
Andamooka 18.9 -0.3 28.8 22 Aug 5.9 -0.8 0.6 17 Jul 12.6 40.8 low 31%
Coober Pedy Airport 19.1   32.6 28 Aug 5.7   1.3 1 Aug 0.4
Ernabella (Pukatja) 19.1   30.4 28 Aug 4.0   -4.2 8 Jul 0.2
Marla Police Station 20.3 -0.3 33.8 28 Aug 2.5 -3.1 -5.0 7 Jul 3.6 35.8 v low 10%
Roxby Downs (Olympic Dam Aerodrome) 18.9   28.8 22 Aug 2.7   -4.0 1 Aug 13.4
Tarcoola Aero 19.4   32.7 28 Aug 3.6   -2.3 19 Jul 13.8
Woomera Aerodrome 17.8 +0.1 27.8 22 Aug 5.4 -1.0 0.9 23 Jun 13.4 44.3 v low 30%
Far North (district 17)
Arkaroola 17.3 -0.2 28.0 22 Aug 3.3 -0.8 -2.9 2 Aug 61.6 44.4 high 139%
Leigh Creek Airport 17.7 +0.1 27.8 22 Aug 3.9 -1.5 -1.2 23 Jun 18.4 49.8 low 37%
Marree Aero 19.7   29.9 22 Aug 4.1   -1.0 3 Jul 15.6
Marree Comparison 20.4 +0.4 30.0 22 Aug 5.6 -0.1 1.0 3 Jul 17.1 32.8 average 52%
Moomba Airport 20.7   34.3 22 Aug 5.6   0.8 3 Jul 32.6
Oodnadatta Airport 20.7 +0.2 32.1 22 Aug 4.9 -1.7 -0.7 4 Jul 1.8 30.1 low 6%
Western Agricultural (district 18)
Ceduna AMO 18.0 -0.1 28.2 7 Aug 5.8 -0.3 -1.9 12 Aug 75.6 109.2 low 69%
Cleve 15.7 -0.3 22.0 7 Aug 7.3 -0.2 1.7 11 Jun 139.4 140.7 average 99%
Cleve Aerodrome 15.4   21.8 7 Aug 7.2   1.0 7 Jul 108.6 129.9 average 84%
Coulta (Coles Point) 15.7 -0.4 22.8 7 Aug 7.4 -0.4 1.4 10 Jun 250.2
Cummins Aero 15.9   21.5 7 Aug 4.9   -2.5 10 Jun 175.8
Elliston 16.9 0.0 24.0 7 Aug 8.0 -0.2 1.6 11 Aug 192.8 202.1 average 95%
Kimba 15.1 -1.1 21.8 28 Aug 5.2 -0.2 0.0 7 Jul 98.8 122.7 average 81%
Kyancutta 17.5 -0.4 25.2 28 Aug 4.5 -0.5 -2.1 11 Jun 128.1 117.8 average 109%
Minnipa Pirsa 16.3   24.4 28 Aug 6.4   2.5 31 Aug 104.6
Neptune Island 15.5 0.0 19.5 7 Aug 11.6 0.0 6.4 23 Aug 209.6 205.6 average 102%
North Shields (Port Lincoln AWS) 16.2 -0.4 22.3 7 Aug 7.2 -0.6 2.8 7 Jul 179.0
Nullarbor 18.6 -0.3 29.4 7 Aug 4.7 -1.0 -2.2 7 Jul 65.6 82.1 average 80%
Port Augusta Aero 18.3   27.1 22 Aug 4.7   -2.7 7 Jul 57.0
Streaky Bay 17.5 +0.4 24.6 27 Aug 8.4 -0.4 2.6 12 Aug 130.1 173.6 low 75%
Whyalla Aero 17.0 -0.6 26.0 22 Aug 5.6 -0.1 -1.4 7 Jul 74.5 70.3 average 106%
Wudinna Aero 17.0   24.9 28 Aug 5.2   -2.3 12 Aug 115.0
Upper North (district 19)
Hawker 16.4 -0.3 25.8 22 Aug 3.1 -1.1 -2.0 7 Jun 67.2 103.1 low 65%
Yongala 13.5 -0.1 21.5 22 Aug 2.5 0.0 -5.1 10 Jun 104.2 122.0 average 85%
Northeast (district 20)
Gluepot Reserve (Gluepot) 17.1   25.5 22 Aug 3.4   -6.5 6 Jul 51.5
Yunta Airstrip 16.1   24.8 22 Aug 2.5   -7.5 6 Jul 39.0
Lower North (district 21)
Clare High School 13.0   20.3 22 Aug 4.4   -2.5 10 Jun 192.8
Port Pirie Aerodrome 16.5   23.1 22 Aug 6.0   0.1 1 Aug 145.0
Port Pirie Nyrstar Comparison 17.0 -0.2 23.2 22 Aug 8.3 +0.2 3.0 10 Jun 124.2 109.5 high 113%
Snowtown (Rayville Park) 15.5   23.4 22 Aug 4.7   -2.6 11 Jun 109.0
Yorke Peninsula (district 22A)
Edithburgh 15.4   20.3 7 Aug 7.5   2.3 7 Jul 176.6
Kadina AWS 15.6   21.1 22 Aug 5.2   -1.2 1 Aug 133.6
Maitland 14.7 -0.4 20.0 22 Aug 7.5 +0.1 3.0 8 Jun 215.0 196.1 average 110%
Minlaton Aero 15.2   20.5 22 Aug 6.9   1.7 1 Aug 133.4
Stenhouse Bay 15.7   20.1 7 Aug 9.4   2.9 1 Aug 216.0
Warooka 15.3 -0.2 18.6 2 Jun 7.8 -0.1 3.6 7 Jul 185.0 189.8 average 97%
Kangaroo Island (district 22B)
Cape Borda 14.3   18.0 1 Jun 8.9   4.7 6 Jul 205.6
Cape Willoughby 14.4 -0.1 18.3 1 Jun 10.0 0.0 6.4 17 Aug 267.2 230.4 high 116%
Kingscote Aero 15.6   18.9 1 Jun 5.8   -2.1 7 Jul 242.2
Parndana Cfs AWS 13.9   18.8 1 Jun 6.4   2.6 23 Jun 285.8
Adelaide Plains (district 23A)
Adelaide (Kent Town) 15.5 -0.5 21.1 22 Aug 7.8 -0.1 2.2 1 Aug 260.6 221.9 high 117%
Adelaide Airport 15.3 -0.3 20.8 22 Aug 7.4 0.0 1.1 9 Jun 197.8 165.4 high 120%
Edinburgh RAAF 15.6 -0.3 21.3 22 Aug 6.3 -0.2 0.1 1 Aug 155.6 155.9 average 100%
Parafield Airport 15.7 0.0 21.0 22 Aug 6.1 -0.6 -0.9 9 Jun 164.6 166.2 average 99%
Roseworthy AWS 15.4   21.4 22 Aug 5.5   -0.9 9 Jun 119.2
County Light (district 23B)
Nuriootpa Viticultural 13.5   21.2 22 Aug 5.0   -2.5 11 Jun 135.4
Rosedale (Turretfield Research Centre) 15.0 -0.4 22.0 22 Aug 5.4 -0.4 -1.0 9 Jun 181.3 173.1 average 105%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 15.4   22.0 28 Aug 8.1   2.0 6 Jul 238.4
Kuitpo Forest Reserve 12.3   17.8 22 Aug 6.6   2.6 7 Jul 373.4
Mount Barker 12.9 -0.7 17.8 28 Aug 5.4 +0.5 -0.3 11 Jun 369.6 308.4 high 120%
Mount Crawford (Mt Crawford AWS) 11.1   17.6 22 Aug 5.6   2.0 10 Jun 230.4
Mount Lofty 9.5   15.1 22 Aug 4.8   1.3 24 Aug 377.8
Noarlunga 14.9   19.9 22 Aug 8.6   3.8 10 Jun 234.0
Parawa (Second Valley Forest AWS) 12.0   15.4 1 Jun 7.0   2.5 7 Jul 433.8
Victor Harbor (Encounter Bay) 15.5   20.9 28 Aug 6.4   -0.8 11 Jun 335.0
Upper Murray Valley (district 24A)
Loxton Research Centre 16.6 +0.1 23.2 22 Aug     -3.6 11 Jun 51.4 81.7 low 63%
Renmark Aero 17.0   24.2 28 Aug 3.7   -4.9 6 Jul 63.2
Lower Murray Valley (district 24B)
Eudunda 13.3 -0.4 22.0 22 Aug 5.3 0.0 -0.2 11 Jun 127.6 158.8 average 80%
Meningie 15.2 -0.3 18.1 22 Aug 6.8 -0.2 0.7 7 Jul 252.0 180.4 v high 140%
Murray Bridge (Pallamana Aerodrome) 15.4   20.8 22 Aug 4.8   -3.8 7 Jul 139.4
Murray Bridge Comparison 16.2 -0.6 21.5 22 Aug 5.5 -0.3 -1.5 7 Jul 169.0 110.8 v high 153%
Strathalbyn Racecourse 14.9   20.9 28 Aug 6.9   0.5 11 Jun 245.0
Murray Mallee (district 25A)
Karoonda 15.7   21.6 20 Jun 4.7   -1.2 7 Jul 118.7 108.5 average 109%
Upper Southeast (district 25B)
Keith 15.1 -0.5 20.0 28 Aug 5.8 0.0 -0.2 1 Aug 179.0 165.5 average 108%
Keith (Munkora) 14.8   19.4 28 Aug 4.7   -1.1 1 Aug 190.0
Lameroo (Austin Plains) 14.9   21.1 28 Aug 4.4   -0.7 7 Jul 106.0
Lameroo Comparison 15.5 -0.2 22.0 28 Aug 5.2 +0.4 0.3 7 Jul 117.2 126.1 average 93%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 14.2 -0.2 18.2 1 Jun 7.9 +0.1 1.4 7 Jul 272.0
Coonawarra 14.2 -0.2 18.7 1 Jun 5.3 0.0 -2.0 1 Aug 249.4 229.0 average 109%
Mount Gambier Aero 13.8 +0.1 17.9 1 Jun 5.8 +0.3 -0.3 6 Jul 311.2 277.8 average 112%
Naracoorte Aerodrome 14.3   19.0 28 Aug 5.2   -1.5 11 Jun 214.0
Padthaway South 14.4   19.4 28 Aug 5.2   -1.6 8 Jun 200.2
Robe Airfield 14.9   19.2 22 Aug 6.7   -1.0 6 Jul 293.4
Robe Comparison 14.2 +0.1 16.7 2 Jun 8.7 +0.3 2.9 6 Jul 310.6 285.3 average 109%

Notes

This statement was prepared before all data for the period were available. This may affect some of the statistics presented.

A Seasonal 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 Friday 31 August 2012. 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