South Australia in August 2018: wet in many coastal areas; mild days and nights

Rainfall in August was above average in many coastal areas of South Australia, but Eastern Eyre Peninsula had another month of drier than average conditions. Daytime temperatures were warmer than average across most of South Australia. Nights were warmer than average in agricultural districts, but clear skies and dry soils meant that night time temperatures were cooler than average in the State's northeast.

Wet in many coastal areas

  • Rainfall in August was above average in many coastal areas of South Australia, including the West Coast, Lower Eyre Peninsula, southern Yorke Peninsula, Kangaroo Island, and the Lower South East
  • August was drier than average in some agricultural districts including the Eastern Eyre Peninsula and southern parts of the Murraylands, along with isolated patches of the Flinders and Northeast Pastoral districts
  • A cold front and low pressure trough brought rainfall to most parts of the State on the 31st, with totals in excess of 10 mm in southern and central districts and accounted for more than half of the monthly total in areas of the Northeast Pastoral district
  • With that widespread rain at the end of the month, August rainfall was 20% above average for South Australia as a whole, breaking a run of six consecutive drier than average months
  • Early in the month, a few sites had their highest August daily rainfall on record
  • Many sites had either their highest total August rainfall on record or their highest total August rainfall for at least 20 years

Mild days

  • Daytime temperatures for August were warmer than average across most of South Australia; days were slightly cooler than average in the far southeast corner of the State
  • The mean maximum temperature for South Australia as a whole was 1.13 °C warmer than average, continuing a run of 16 consecutive months of above average maximum temperatures for the State
  • Night time temperatures were warmer than average across most of the west and south of the State, but were cooler than average in the northeast, where clear skies and dry soils allowed the air to cool overnight
  • The mean minimum temperature for South Australia as a whole was 0.46 °C warmer than average
  • On the 5th, Stenhouse Bay had its coldest August day on record
  • On the 30th, many sites had their warmest August night on record
  • Adelaide Airport had its highest August mean daily minimum temperature on record, and Edinburgh RAAF and Parafield Airport had their highest August mean daily minimum temperature for at least 20 years

Strong winds at times

  • The first half of August was particularly windy across South Australia
  • Most sites away from the southern coast had their windiest August for at least ten years; Adelaide Airport and Woomera Aerodrome had their highest total wind run for August in more than 20 years, up to 35% above average
  • The strongest recorded wind gust in the State was 113 km/h at Port Pirie Aerodrome on the 30th, but gusts in excess of 100 km/h were also recorded at Cape Willoughby, Cleve Aerodrome, and Neptune Island during the month

Further information

Media
(03) 9669 4057
Enquiries

Extremes in August 2018
Hottest day 31.5 °C at Moomba Airport on the 30th
Warmest days on average 23.4 °C at Oodnadatta Airport
Coolest days on average 10.9 °C at Mount Lofty
Coldest day 5.5 °C at Mount Lofty on the 6th
Coldest night -4.1 °C at Yunta Airstrip on the 20th
Coolest nights on average 3.8 °C at Yongala
Warmest nights on average 11.1 °C at Neptune Island
Warmest night 20.9 °C at Port Pirie Aerodrome AWS on the 30th
Warmest on average overall 15.4 °C at Oodnadatta Airport
Coolest on average overall 8.1 °C at Mount Lofty
Wettest overall 209.9 mm at Uraidla
Driest overall 2.2 mm at Moomba Airport
Wettest day 65.2 mm at Lenswood on the 6th
Strongest wind gust 113 km/h at Port Pirie Aerodrome AWS on the 30th

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
Edithburgh 18.8 on the 6th 17.8 on the 4th in 2004 27
McLaren Vale (Pirramimma Winery) 28.8 on the 3rd 26.2 on the 3rd in 2004 25
Wudinna Aero 26.8 on the 3rd 17.0 on the 21st in 2015 20



Record highest August total rainfall
New record
(mm)
Old
record
Years of
record
Average for
August
Mount Hope (Fairview) 139.4 117.9 in 1971 105 58.5
Kyancutta 84.6 80.6 in 1939 89 39.2
Minnipa Pirsa 86.2 84.8 in 2015 23 39.6
Stenhouse Bay 113.2 98.6 in 2005 23 61.1
Brownhill Creek (Scotch College) 114.6 109.2 in 2010 20 66.4
Wudinna Aero 80.0 64.8 in 2000 20 36.5

Highest August total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
August
Curramulka 102.2 127.6 in 1909 54.5
Minlaton 108.0 113.0 in 1909 56.0
Lock 118.4 119.6 in 1915 53.5
Wharminda 92.0 116.5 in 1939* 45.1
Stansbury 84.2 93.0 in 1971 52.1
Nundroo 93.6 109.2 in 1973 38.7
Cummins 133.6 144.8 in 1972* 61.6
Wirrulla 89.4 92.0 in 1978* 39.9
Darke Peak 83.8 100.4 in 1984 49.8
Cleve 78.8 97.0 in 1985 48.3
Parndana (Turkey Lane) 181.8 212.0 in 1984* 109.1
Parndana 141.8 146.5 in 1990 94.5
Coffin Bay 136.5 147.3 in 1985* 69.2
Padthaway (Marcollat) 126.4 143.2 in 1991* 68.9
Warooka 113.8 114.4 in 1992 59.4
North Shields (Port Lincoln Aerodrome) 107.8 120.0 in 1992* 60.8
Petersville 86.0 87.8 in 1992* 53.5
Auburn 115.9 116.0 in 1996 74.9

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




Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Stenhouse Bay 11.1 on the 5th 11.4 on the 20th in 2003 23 16.2



Record highest August daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Adelaide (West Terrace / ngayirdapira) 19.2 on the 30th 16.9 on the 25th in 1935 94 8.0
Adelaide Airport 19.2 on the 30th 18.3 on the 30th in 1993 64 7.6
Parafield Airport 18.4 on the 30th 16.4 on the 25th in 1999 62 6.7
Yongala 13.7 on the 30th 12.0 on the 6th in 1973 61 2.5
Adelaide (Kent Town) 19.4 on the 30th 18.4 on the 30th in 1993 42 8.1
Maitland 15.0 on the 30th 14.5 on the 15th in 2017 38 7.2
Whyalla Aero 20.6 on the 30th 15.9 on the 21st in 2009 34 5.9
Kingscote Aero 14.9 on the 30th 14.5 on the 3rd in 2005 25 5.7
Parawa (Second Valley Forest AWS) 15.1 on the 30th 13.2 on the 28th in 2005 25 7.1
Minnipa Pirsa 15.5 on the 29th 15.3 on the 27th in 2007 23 6.8
Roxby Downs (Olympic Dam Aerodrome) 18.5 on the 30th 17.0 on the 30th in 2005 21 5.4
Snowtown (Rayville Park) 16.5 on the 30th 14.0 on the 15th in 2017 21 4.2
Tarcoola Aero 17.6 on the 29th = 17.6 on the 20th in 2015 20 5.6



Record highest August mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Adelaide Airport 9.3 9.2 in 2013 63 7.6

Highest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
August
Edinburgh RAAF 7.9 8.0 in 1984 6.5
Parafield Airport 8.1 8.3 in 1991 6.7



Summary statistics for August 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2018
Diff
from
average
Highest for
August
2018
Mean for
August
2018
Diff
from
average
Lowest for
August
2018
Total for
August
2018
Average
for
August
Rank of
August
2018
Fraction of
August
average
Northwest (district 16)
Andamooka 21.3 +0.6 26.7 29th 7.8 +0.6 2.4 21st 7.2 12.8 average 56%
Coober Pedy Airport 21.1 0.0 28.8 22nd 7.7 +0.1 2.8 12th 14.6 6.8 high 215%
Ernabella (Pukatja) 21.1 0.0 30.0 29th 6.5 +0.4 -2.1 7th 10.4 6.3 high 165%
Mount Ive 18.7   25.0 29th     0.0 17th 47.2 23.7 high 199%
Roxby Downs (Olympic Dam Aerodrome) 21.3 +0.4 26.3 29th 6.5 +1.1 -0.4 21st 5.2 9.2 average 57%
Tarcoola Aero 20.7 -0.6 28.1 22nd 6.8 +1.2 0.5 20th 27.8 12.9 high 216%
Woomera Aerodrome 20.0 +1.0 25.7 28th 6.8 0.0 3.0 20th 8.6 13.2 average 65%
Far North (district 17)
Arkaroola 19.9 +0.8 25.0 28th 4.7 +0.1 -1.6 21st 8.0 14.6 average 55%
Leigh Creek Airport 19.9 +0.7 25.1 10th 6.6 +0.5 1.3 13th 20.6 16.3 average 126%
Marree Aero 22.3 +0.4 28.2 30th 5.9 -0.8 0.8 22nd 7.4 7.2 average 103%
Moomba Airport 22.5 -0.1 31.5 30th 6.7 -1.3 2.9 22nd 2.2 4.5 average 49%
Oodnadatta Airport 23.4 +1.2 29.6 22nd 7.5 0.0 1.7 20th 2.8 7.9 average 35%
Western Agricultural (district 18)
Ceduna AMO 19.0 +0.3 27.2 29th 6.8 +0.7 0.8 20th 75.4 34.4 v high 219%
Cleve 17.2 +0.5 24.0 28th 8.0 +0.6 3.6 20th 78.8 48.3 v high 163%
Cultana (Defence) 19.2   24.9 28th 7.2   3.8 12th 13.6
Cummins Aero 16.2 -0.5 22.8 29th 6.0 +0.8 0.2 20th 143.2 63.2 v high 227%
Elliston 18.2 +1.0 26.2 28th 9.0 +0.7 2.1 20th 103.4 59.4 v high 174%
Kyancutta 18.9 +0.3 25.9 22nd 6.4 +1.5 -0.2 20th 84.6 39.2 highest 216%
Minnipa Pirsa 17.4 -0.4 25.0 28th 7.5 +0.7 4.4 20th 86.2 39.6 highest 218%
Neptune Island     18.0 2nd 11.1 -0.1 7.9 6th 88.6 62.4 high 142%
North Shields (Port Lincoln AWS) 16.5 -0.3 25.0 29th 7.2 0.0 2.4 22nd 98.0 51.3 v high 191%
Nullarbor 20.3 +0.6 30.6 29th 6.5 +0.7 0.4 21st 39.2 24.4 high 161%
Port Augusta Aero 20.5 +0.5 26.2 28th 5.8 +0.5 -1.3 21st 16.6 15.5 average 107%
Whyalla Aero 19.5 +1.0 25.9 28th 6.7 +0.8 0.0 20th 12.0 21.3 average 56%
Wudinna Aero 18.3 -0.4 25.6 29th 7.0 +1.4 0.8 26th 80.0 36.5 highest 219%
Upper North (district 19)
Hawker 18.3 +0.5 24.6 29th 5.6 +1.4 -1.8 27th 30.0 31.8 average 94%
Yongala 15.2 +0.7 21.6 29th 3.8 +1.3 -3.4 20th 27.6 42.9 low 64%
Northeast (district 20)
Gluepot Reserve (Gluepot) 19.4 +0.5 26.1 29th 4.8 +0.5 -2.4 20th 17.5 20.1 average 87%
Yunta Airstrip 18.6 +1.0 24.9 10th 4.7 +0.8 -4.1 20th 12.4 13.2 average 94%
Lower North (district 21)
Clare High School 14.7 +0.5 22.0 29th 4.9 +0.5 -2.5 21st 69.0 66.0 average 105%
Port Pirie Aerodrome AWS 19.4   25.6 29th 6.8   -1.7 20th 23.6
Snowtown (Rayville Park) 17.6 +0.8 25.8 29th 5.1 +0.9 -1.6 20th 49.8 43.9 average 113%
Yorke Peninsula (district 22A)
Edithburgh 15.9 +0.1 20.1 29th 8.1 +0.7 2.3 20th 68.4 48.5 high 141%
Kadina AWS 17.4 +0.3 24.6 29th 6.7 +2.0 -1.8 21st 41.0 32.3 average 127%
Minlaton Aero 16.9 +0.5 25.2 29th 7.7 +0.9 2.0 26th 88.4 46.1 v high 192%
Stenhouse Bay 15.9 -0.3 23.2 29th 9.7 +0.3 6.0 22nd 113.2 61.1 highest 185%
Warooka 16.3 +0.6 22.0 29th 8.3 +0.6 5.0 7th 113.8 59.4 v high 192%
Kangaroo Island (district 22B)
Cape Borda 14.8 +0.2 21.0 24th 9.2 +0.1 6.3 12th 136.8 75.3 v high 182%
Cape Willoughby 14.8 +0.3 20.8 29th 9.9 +0.3 6.1 11th 79.8 73.7 average 108%
Kingscote Aero 15.9 -0.2 21.0 29th 6.9 +1.2 0.4 22nd 80.4 57.8 high 139%
Parndana Cfs AWS 14.3   19.6 29th 7.2   3.6 22nd 151.2
Adelaide Plains (district 23A)
Adelaide (Kent Town) 17.3 +0.6 25.9 29th 9.3 +1.2 4.5 26th 82.6 68.1 average 121%
Adelaide (West Terrace / ngayirdapira) 17.0 +0.9 25.4 29th 9.5 +1.5 4.1 26th 76.8 61.8 high 124%
Adelaide Airport 16.8 +0.9 26.3 29th 9.3 +1.7 4.5 26th 71.2 51.1 high 139%
Edinburgh RAAF 17.1 +0.6 26.1 29th 7.9 +1.4 2.5 25th 57.8 50.3 average 115%
Parafield Airport 17.2 +0.9 26.2 29th 8.1 +1.4 1.3 26th 58.8 53.8 average 109%
Roseworthy AWS 16.9 +0.4 25.5 29th 6.0 +0.8 -0.4 26th 59.2 46.4 average 128%
County Light (district 23B)
Nuriootpa Pirsa 15.0 +0.2 23.7 29th 5.5 +0.5 -1.0 20th 64.6 56.8 average 114%
Rosedale (Turretfield Research Centre) 16.6 +0.7 25.2 29th 5.8 +0.2 -0.7 26th 59.6 57.6 average 103%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 16.9 +0.5 24.7 29th 8.2 0.0 3.4 22nd 48.2 47.9 average 101%
Kuitpo Forest Reserve 13.9 +0.3 22.6 29th 7.4 +0.5 4.3 20th 117.0 90.4 high 129%
Mount Barker 15.0 +0.8 21.3 29th 6.5 +1.5 2.0 22nd 123.0 102.5 average 120%
Mount Crawford AWS 12.3 -0.1 20.4 29th 6.0 -0.1 2.3 12th 97.6 86.8 average 112%
Mount Lofty 10.9 +1.0 18.7 29th 5.3 +0.1 2.0 12th 176.6 140.5 average 126%
Noarlunga 16.5 +0.6 25.5 29th 9.7 +0.9 5.8 22nd 82.6 55.3 high 149%
Parawa (Second Valley Forest AWS) 13.1 +0.6 20.3 29th 7.5 +0.4 4.5 12th 122.4 104.4 average 117%
Victor Harbor (Encounter Bay) 16.9 +0.5 24.9 29th 6.8 +0.1 0.3 22nd 82.8 74.0 average 112%
Upper Murray Valley (district 24A)
Loxton Research Centre 18.3 +0.7 24.7 29th 5.7 +1.3 -1.5 22nd 34.8 27.0 high 129%
Renmark Aero 19.0 +0.4 25.6 10th 5.4 +1.0 -2.0 20th 24.8 22.0 average 113%
Lower Murray Valley (district 24B)
Eudunda 15.2 +0.8 23.7 29th 5.5 +0.2 0.0 20th 43.6 55.6 average 78%
Meningie 17.0 +0.9 24.2 29th 7.7 +0.5 1.1 28th 64.8 56.9 average 114%
Murray Bridge (Pallamana Aerodrome) 17.7 +0.5 25.7 29th 5.0 +0.6 -1.4 28th 29.8 29.0 average 103%
Strathalbyn Racecourse 16.4 +0.2 23.7 29th 6.9 +0.3 -0.2 28th 48.6 52.7 average 92%
Upper Southeast (district 25B)
Keith 16.4 +0.2 21.9 29th 6.2 +0.3 1.2 25th 84.6 58.3 high 145%
Keith (Munkora) 16.2 +0.1 20.5 29th 5.5 +0.8 -0.3 25th 64.8 54.8 average 118%
Lameroo (Austin Plains) 16.5 +0.1 22.6 29th 4.6 +0.2 -0.3 28th 30.4 34.4 low 88%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 14.7 +0.1 19.2 29th 8.1 +0.3 2.4 25th 110.6 72.6 high 152%
Coonawarra 14.7 -0.1 18.2 2nd 5.4 +0.1 -1.4 28th 97.6 82.7 average 118%
Mount Gambier Aero 14.2 0.0 18.8 23rd 5.6 +0.1 -0.6 28th 126.4 96.1 high 132%
Naracoorte Aerodrome 14.8 -0.5 18.6 2nd 6.3 +0.9 0.4 27th 94.8 72.0 average 132%
Padthaway South 15.1 -0.3 19.3 2nd 6.3 +0.5 -0.5 27th 123.0 72.1 v high 171%
Robe Airfield 15.1 -0.2 19.3 2nd 7.8 +0.7 0.6 25th 143.4 95.0 high 151%

Notes

The Monthly climate summary, generally published on the first working day of each month, 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 9 am on Monday 3 September 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries