South Australia in August 2015: Below average rainfall in parts, cooler temperatures in the south and east

In South Australia, most central and eastern districts saw above average rainfall for August. Rainfall was below average in the southeast and far northwest, with elsewhere across the State recording falls closer to average for the month. Statewide temperatures were slightly warmer than average as a whole, with cooler than normal days and nights particularly in southern parts. Western areas saw nights tend warmer than average.

  • Above average rain in the east
  • Below average rain in the southeast and northwest
  • Coolest August days since 2010
  • Driest August since 2010

August rainfall was below average for South Australia as a whole, with particularly dry areas across the southeast and northwest parts of the State. The wettest period for most southern locations occurred at the beginning of the month as a cold frontal system crossed the state, bringing totals of 25 to 50 mm to southern coasts and elevated regions across the Mount Lofty and Flinders Ranges. A sequence of cold fronts swept across southern coastal areas from the 9th to 12th, bringing light to moderate periods of rain for agricultural areas, though totals were not enough to see locations reach their long-term August Average. Despite this, the wettest days also saw some sites have their highest August daily rainfall on record. On the 24th, a trough of low pressure over the eastern part of the State deepened and an associated middle level disturbance produced a band of rain over the Flinders and south of the pastoral districts in the east. The rainband resulted in some sites in these areas having their highest total August rainfall for at least 20 years

The statewide mean maximum temperature was warmer than average, though it was the coolest August since 2010. The coolest temperatures for the month were recorded at the start of the month as a cold front and southwesterly airstream was directed across the State. Minimum temperatures were also above average for August, though nights where generallly cooler than average through some central and eastern parts of the state. Light winds and clear skies during this period resulted in minimum temperatures of around 5 to 10 degrees below average and morning frost reported across much of the state, with Strathalbyn, Parawa and Edithburgh having their lowest July temperature on record. Despite the generally average conditions across much of the state, a warm spell saw Moomba have its highest August temperature on record.

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Extremes in August 2015
Hottest day 34.8 °C at Moomba Airport on the 23rd
Warmest days on average 22.8 °C at Oodnadatta Airport
Coolest days on average 9.6 °C at Mount Lofty
Coldest day 6.7 °C at Mount Lofty on the 1st
Coldest night -3.9 °C at Renmark Aero on the 30th
Coolest nights on average 3.2 °C at Yongala
Warmest nights on average 11.1 °C at Neptune Island
Warmest night 17.6 °C at Tarcoola Aero on the 20th
17.6 °C at Leigh Creek Airport on the 21st
Warmest on average overall 15.4 °C at Oodnadatta Airport
Coolest on average overall 7.2 °C at Mount Lofty
Wettest overall 134.4 mm at Ashton
Wettest day 47.2 mm at Melrose on the 12th
Strongest wind gust 106 km/h at Cape Willoughby on the 20th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest August daily rainfall
New record
(mm)
Old
record
Years of
record
Kimba 38.0 on the 12th 28.6 on the 23rd in 2000 94
Parachilna (Motpena) 31.4 on the 19th 30.0 on the 18th in 1979 47
Strathearn 26.0 on the 24th 17.4 on the 30th in 1992 25
Minnipa Pirsa 27.2 on the 21st 26.0 on the 20th in 1998 20



Record highest August total rainfall
New record
(mm)
Old
record
Years of
record
Average for
August
Minnipa Pirsa 84.8 70.8 in 1996 20 37.6

Highest August total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
August
Boolcoomatta 51.6 59.4 in 1973* 13.8
Moonta 64.4 75.6 in 1986 40.4
Koonamore 38.8 41.8 in 1986* 15.1
Wharminda 84.0 91.0 in 1985* 44.2
Parachilna (Motpena) 35.6 41.2 in 1992 15.8
Wilpena (Oraparinna) 77.5 91.4 in 1992* 32.8

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




Record highest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Moomba Airport 34.8 on the 23rd 34.6 on the 22nd in 2009 21 22.7




Summary statistics for August 2015
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2015
Diff
from
average
Highest for
August
2015
Mean for
August
2015
Diff
from
average
Lowest for
August
2015
Total for
August
2015
Average
for
August
Rank of
August
2015
Fraction of
August
average
Northwest (district 16)
Andamooka 20.5 -0.1 30.0 1st 8.2 +1.0 2.7 8th 20.4 12.8 high 159%
Coober Pedy Airport 21.1 +0.1 30.8 1st 7.5 -0.1 2.7 6th 1.6 6.0 average 27%
Ernabella (Pukatja) 20.8 -0.3 29.2 22nd 7.2 +1.2 1.8 14th 2.8 4.2 average 67%
Mount Ive 18.1   24.5 19th 6.0   0.5 7th 29.3 23.2 high 126%
Roxby Downs (Olympic Dam Aerodrome) 20.6 -0.3 30.9 1st 6.3 +0.9 -1.2 7th 22.0 9.0 high 244%
Tarcoola Aero 20.7 -0.6 29.7 19th 6.4 +0.9 -0.4 7th 21.6 11.3 high 191%
Woomera Aerodrome 19.3 +0.4 28.0 1st 7.6 +0.8 3.6 8th 14.6 13.2 average 111%
Far North (district 17)
Arkaroola 19.0 -0.1 27.0 1st 4.3 -0.3 -1.7 9th 6.0 14.5 average 41%
Leigh Creek Airport 19.2 0.0 27.3 1st 6.5 +0.4 2.3 13th 20.6 15.0 average 137%
Marree Aero 21.6 -0.3 28.5 1st 6.6 -0.1 2.1 7th 0.4 5.1 low 8%
Moomba Airport 22.3 -0.4 34.8 23rd 7.8 -0.2 3.0 5th 0.4 4.6 average 9%
Oodnadatta Airport 22.8 +0.6 32.2 1st 8.0 +0.6 3.6 7th 1.2 7.7 average 16%
Western Agricultural (district 18)
Ceduna AMO 18.4 -0.3 27.1 19th 6.3 +0.2 0.2 27th 59.0 34.2 high 173%
Cleve 15.8 -0.9 22.8 31st 7.5 +0.1 1.8 26th 72.6 47.9 high 152%
Cleve Aerodrome 15.3 -1.6 21.9 31st 6.7 -0.7 1.6 26th 67.2 43.4 high 155%
Cummins Aero 15.6   21.3 31st 5.5   0.1 29th 90.4
Elliston 16.7 -0.5 25.3 19th 7.9 -0.4 2.9 17th 81.6 58.9 high 139%
Kimba 16.0 -1.0 22.4 19th 5.8 +0.4 1.0 27th 77.6 41.9 v high 185%
Kyancutta 17.8 -0.8 24.8 19th 5.6 +0.7 -0.1 27th 55.1 38.8 high 142%
Minnipa Pirsa 16.4 -1.5 23.5 19th 6.3 -0.5 1.3 27th 84.8 37.6 highest 226%
Neptune Island 14.7 -0.7 17.9 20th 11.1 0.0 8.5 12th 44.0 62.0 low 71%
North Shields (Port Lincoln AWS) 15.9 -0.9 20.9 20th 7.0 -0.1 2.9 30th 57.0 48.8 average 117%
Nullarbor 19.0 -0.7 27.0 30th 7.6 +1.8 2.1 27th 35.4 24.4 high 145%
Port Augusta Aero 19.5 -0.6 26.3 21st 6.4 +1.2 0.0 11th 21.8 14.6 average 149%
Streaky Bay 17.7 +0.1 24.4 19th 8.8 0.0 4.3 26th 57.4 49.9 average 115%
Whyalla Aero 17.4 -1.1 24.9 20th 6.3 +0.4 0.7 8th 26.6 21.2 average 125%
Wudinna Aero 16.9 -1.9 24.4 19th 5.6 +0.1 -0.1 26th 56.8 34.7 high 164%
Upper North (district 19)
Hawker 17.8 0.0 25.0 20th 3.8 -0.4 -1.0 27th 38.0 31.7 high 120%
Yongala 13.9 -0.6 19.5 21st 3.2 +0.7 -1.5 31st 36.0 43.0 average 84%
Northeast (district 20)
Gluepot Reserve (Gluepot) 17.9 -1.1 25.2 21st 5.0 +0.8 -3.3 31st 17.0 18.4 average 92%
Lower North (district 21)
Clare High School 13.2 -1.0 18.6 20th 4.3 -0.1 -0.6 27th 84.0 64.7 average 130%
Port Pirie Aerodrome AWS 17.3   23.3 21st 5.8   0.4 27th 46.0
Snowtown (Rayville Park) 15.7 -1.2 20.6 20th 4.2 -0.1 -0.8 29th 61.0 40.6 high 150%
Yorke Peninsula (district 22A)
Edithburgh 15.0 -0.8 21.1 20th 7.2 -0.2 2.5 26th 28.4 45.5 low 62%
Kadina AWS 15.7 -1.6 20.6 31st 4.8 +0.1 -1.6 27th 50.2 29.2 v high 172%
Maitland 14.8 -0.7 19.5 31st 7.3 +0.1 4.0 17th 67.4 61.1 average 110%
Minlaton Aero 15.4 -1.1 21.3 20th 6.2 -0.6 0.9 26th 48.0 41.7 average 115%
Stenhouse Bay 15.5 -0.8 21.9 20th 9.3 -0.1 4.9 30th 53.4 57.7 average 93%
Warooka 15.3 -0.4 19.2 31st 7.8 +0.1 4.8 26th 33.6 58.7 low 57%
Kangaroo Island (district 22B)
Cape Borda 13.7 -1.0 17.3 20th 8.1 -1.1 3.9 30th 70.4 72.4 average 97%
Cape Willoughby 13.8 -0.7 19.0 20th 9.3 -0.3 6.2 2nd 51.6 73.6 low 70%
Kingscote Aero 15.2 -0.9 20.1 20th 5.0 -0.7 0.3 31st 53.8 56.1 average 96%
Parndana Cfs AWS 13.5   18.8 20th 5.8   2.3 7th 102.6
Adelaide Plains (district 23A)
Adelaide (Kent Town) 15.8 -0.9 22.9 20th 8.2 0.0 3.3 8th 48.4 67.5 average 72%
Adelaide Airport 15.5 -0.4 22.6 20th 8.1 +0.6 2.9 31st 34.4 50.2 low 69%
Edinburgh RAAF 15.7 -0.8 20.9 21st 6.6 +0.1 1.6 29th 49.2 49.1 average 100%
Parafield Airport 16.0 -0.3 21.7 20th 6.5 -0.2 0.9 29th 44.8 53.4 average 84%
Roseworthy AWS 15.3 -1.3 20.4 20th 5.4 +0.2 -1.0 29th 57.4 43.8 average 131%
County Light (district 23B)
Nuriootpa Viticultural 13.7 -1.1 20.1 20th 5.4 +0.4 -0.7 27th 57.2 53.6 average 107%
Rosedale (Turretfield Research Centre) 15.3 -0.6 21.0 20th 5.5 -0.1 -0.5 29th 61.8 57.3 average 108%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 15.2 -1.3 23.2 20th 7.9 -0.4 2.4 31st 30.2 48.1 low 63%
Kuitpo Forest Reserve 12.4 -1.2 20.7 20th 6.4 -0.5 3.8 30th 100.8 86.1 average 117%
Mount Barker 14.4 +0.2 21.2 20th 5.5 +0.5 0.7 31st 79.8 101.9 average 78%
Mount Crawford (Mt Crawford AWS) 11.2 -1.3 17.8 20th 5.4 -0.8 2.2 30th 87.4 83.7 average 104%
Mount Lofty 9.6 -0.4 16.7 20th 4.8 -0.5 1.7 30th 113.8
Noarlunga 15.1 -0.8 23.0 20th 8.4 -0.5 4.6 8th 41.8 49.3 low 85%
Parawa (Second Valley Forest AWS) 11.6 -0.9 18.3 20th 6.8 -0.3 3.9 8th 91.4 101.1 average 90%
Victor Harbor (Encounter Bay) 15.4 -1.1 23.8 20th 7.1 +0.4 0.0 31st 54.2 72.2 low 75%
Upper Murray Valley (district 24A)
Loxton Research Centre 16.8 -0.8 24.9 20th 5.7 +1.3 -1.0 31st 21.6 26.3 average 82%
Renmark Aero 17.2 -1.5 24.7 20th 5.3 +0.9 -3.9 30th 19.2 21.4 average 90%
Lower Murray Valley (district 24B)
Eudunda 13.4 -1.0 20.5 20th 5.3 0.0 0.2 30th 53.6 55.5 average 97%
Meningie 15.3 -0.8 22.0 20th 7.6 +0.4 2.0 30th 43.2 56.7 average 76%
Murray Bridge (Pallamana Aerodrome) 15.8   23.4 20th 4.5   -3.1 31st 26.8 26.4 average 102%
Strathalbyn Racecourse 14.9 -1.3 23.0 20th 6.7 +0.1 0.7 31st 32.6 50.4 low 65%
Murray Mallee (district 25A)
Karoonda 15.9 -1.5 22.8 20th 5.2 +0.3 -0.7 31st 41.6 38.0 average 109%
Upper Southeast (district 25B)
Keith 15.5 -0.7 22.0 20th 5.6 -0.3 0.5 31st 25.7 57.7 low 45%
Keith (Munkora) 15.2 -1.0 21.6 20th 4.7 -0.1 -3.8 30th 28.6 51.7 low 55%
Lameroo (Austin Plains) 15.3 -1.3 22.2 20th 5.0 +0.5 0.5 19th 21.8 33.3 low 65%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 14.0 -0.6 19.5 20th 7.8 0.0 1.9 19th 52.2 68.6 average 76%
Coonawarra 14.1 -0.8 21.6 20th 5.1 -0.2 -1.1 29th 36.6 81.0 low 45%
Mount Gambier Aero 13.8 -0.3 20.8 20th 5.5 0.0 -0.3 31st 54.6 95.2 low 57%
Naracoorte Aerodrome 14.3 -1.2 21.5 20th 4.6 -0.8 -1.8 29th 29.4 67.8 low 43%
Padthaway South 14.5 -1.0 22.0 20th 5.5 -0.3 -0.7 31st 30.2 67.1 low 45%
Robe Airfield 14.7 -0.7 22.0 20th 7.0 -0.2 0.0 30th 69.2 89.8 average 77%

Notes

The Monthly climate summary lists 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.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 12 pm on Tuesday 1 September 2015. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages for individual sites 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 10 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.

The ACORN-SAT dataset is used for temperature area averages.

Further information

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