South Australia in winter 2018: mild days and cool nights

Rainfall in winter was below average in many areas of South Australia, although the Lower South East and West Coast districts had average to above average rainfall for the season. Daytime temperatures were warmer than average for all districts except the Lower South East. Nights were very much cooler than average in eastern parts of the Northeast Pastoral district.

Drier than average for most of the State

  • Much of eastern and northern South Australia had below average rainfall for winter
  • Some agricultural areas, including eastern parts of Eastern Eyre Peninsula and northern Yorke Peninsula, were very much drier than average
  • Winter rainfall was average to above average in the Lower South East, where rainfall totals were above average in each month of the season
  • For the State as a whole, winter rainfall was 24% below average
  • Cowell had its lowest total winter rainfall since 1982

Mild days and cool nights

  • Daytime temperatures were above average across most of South Australia; only the Lower South East had average to cooler than average days for winter
  • The mean maximum temperature for South Australia as a whole was 1.29 °C warmer than average; ninth-warmest winter days on record
  • Winter 2018 was the seventh consecutive season with a warmer than average mean maximum temperature for South Australia; spring 2016 was the last season with overall cooler than average days for the State
  • Night time temperatures were slightly below average for South Australia as a whole
  • Winter nights were particularly cold in the Northeast Pastoral district, with the mean minimum temperature more than 1 °C cooler than average in an area east of Marree
  • Nights were warmer than average along the West Coast and in some central agricultural districts
  • The mean minimum temperature for South Australia as a whole was just 0.08 °C cooler than average
  • On 30 August, numerous sites in central areas of the State, including Adelaide, had their warmest winter night on record
  • Arkaroola had its lowest winter mean daily minimum temperature since 1997

Further information

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Extremes in winter 2018
Hottest day 31.5 °C at Moomba Airport on 30 Aug
Warmest days on average 22.1 °C at Oodnadatta Airport
Coolest days on average 10.4 °C at Mount Lofty
Coldest day 5.5 °C at Mount Lofty on 6 Aug
Coldest night -5.5 °C at Yunta Airstrip on 21 Jun
Coolest nights on average 2.8 °C at Yongala
Warmest nights on average 11.8 °C at Neptune Island
Warmest night 20.9 °C at Port Pirie Aerodrome AWS on 30 Aug
Warmest on average overall 13.9 °C at Oodnadatta Airport
Coolest on average overall 7.9 °C at Mount Lofty
Wettest overall 479.1 mm at Uraidla
Driest overall 3.2 mm at Oodnadatta Airport
Wettest day 65.2 mm at Lenswood on 6 Aug
Strongest wind gust 133 km/h at Neptune Island on 17 Jul

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


Lowest winter total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
winter
Cowell 30.2 19.2 in 1982* 81.5

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




Record highest winter daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Adelaide (West Terrace / ngayirdapira) 19.2 on 30 Aug 17.3 on 9 Jun 1919 94 8.0
Adelaide Airport 19.2 on 30 Aug 18.3 on 30 Aug 1993 64 7.4
Parafield Airport 18.4 on 30 Aug 16.4 on 25 Aug 1999 62 6.7
Yongala 13.7 on 30 Aug 12.5 on 24 Jun 1991 62 2.5
Adelaide (Kent Town) 19.4 on 30 Aug 18.4 on 30 Aug 1993 42 7.9
Whyalla Aero 20.6 on 30 Aug 15.9 on 21 Aug 2009 34 5.7
Kingscote Aero 14.9 on 30 Aug 14.6 on 9 Jun 1995 25 6.1
Roxby Downs (Olympic Dam Aerodrome) 18.5 on 30 Aug 17.0 on 30 Aug 2005 21 4.9
Snowtown (Rayville Park) 16.5 on 30 Aug 14.8 on 10 Jun 2005 21 4.8
Tarcoola Aero 17.6 on 29 Aug = 17.6 on 20 Aug 2015 21 5.2



Lowest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Arkaroola 3.1 2.7 in 1997 4.1



Summary statistics for winter 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
winter
2018
Diff
from
average
Highest for
winter
2018
Mean for
winter
2018
Diff
from
average
Lowest for
winter
2018
Total for
winter
2018
Average
for
winter
Rank of
winter
2018
Fraction of
winter
average
Northwest (district 16)
Andamooka 20.1 +0.9 27.0 5 Jul 6.6 -0.1 0.5 2 Jul 13.2 40.1 low 33%
Coober Pedy Airport 20.1 +0.8 28.8 22 Aug 6.5 -0.5 1.2 19 Jun 22.2 24.6 average 90%
Ernabella (Pukatja) 20.3 +1.2 30.0 29 Aug 4.8 -0.3 -2.5 12 Jul 10.4 37.5 low 28%
Mount Ive 18.0   25.0 29 Aug     -2.5 1 Jul 78.6 74.7 average 105%
Roxby Downs (Olympic Dam Aerodrome) 19.9 +0.6 26.7 5 Jul 5.0 +0.1 -2.9 13 Jul 9.0 31.4 low 29%
Tarcoola Aero 20.0 +0.4 28.1 22 Aug 5.3 +0.1 -3.0 27 Jun 47.6 38.4 average 124%
Woomera Aerodrome 18.7 +0.9 25.7 28 Aug 6.3 -0.1 1.7 27 Jun 23.4 43.7 low 54%
Far North (district 17)
Arkaroola 18.6 +1.1 25.0 28 Aug 3.1 -1.0 -5.0 1 Jul 8.2 44.5 v low 18%
Leigh Creek Airport 18.7 +1.0 25.1 10 Aug 5.4 0.0 -1.5 14 Jul 28.6 49.5 low 58%
Marree Aero 21.0 +0.8 28.2 30 Aug 4.7 -1.1 -0.9 19 Jun 8.2 23.2 low 35%
Moomba Airport 21.1 +0.3 31.5 30 Aug 6.1 -1.2 -0.3 19 Jun 12.2 28.6 average 43%
Oodnadatta Airport 22.1 +1.5 30.4 10 Jun 5.8 -0.8 -0.7 13 Jul 3.2 29.4 low 11%
Western Agricultural (district 18)
Ceduna AMO 18.7 +0.6 27.2 29 Aug 6.7 +0.6 -1.5 27 Jun 136.0 109.3 high 124%
Cleve 16.9 +0.9 24.0 28 Aug 7.9 +0.4 2.1 19 Jun 118.4 141.6 average 84%
Cultana (Defence) 18.0   24.9 28 Aug 6.8   2.9 1 Jul 43.6
Cummins Aero 16.3 0.0 22.8 29 Aug 5.7 +0.1 -2.1 13 Jul 241.4 188.0 high 128%
Elliston 17.9 +1.0 26.2 28 Aug 8.3 +0.1 0.5 27 Jun 169.4 202.1 average 84%
Kyancutta 18.6 +0.7 25.9 22 Aug 5.8 +0.8 -3.3 27 Jun 122.1 117.4 average 104%
Minnipa Pirsa 17.1 +0.2 25.0 28 Aug 7.3 +0.4 0.9 27 Jun 134.0 110.4 average 121%
Neptune Island     19.3 2 Jun 11.8 +0.2 7.9 6 Aug 183.4 206.4 average 89%
North Shields (Port Lincoln AWS) 16.7 +0.1 25.0 29 Aug 7.6 -0.1 1.9 13 Jul 179.8 168.9 average 106%
Nullarbor 19.7 +0.8 30.6 29 Aug 6.3 +0.5 0.0 10 Jul 98.6 82.1 high 120%
Port Augusta Aero 19.2 +0.6 26.2 28 Aug 4.7 -0.6 -2.6 13 Jul 51.8 56.9 average 91%
Whyalla Aero 18.4 +0.8 25.9 28 Aug 5.8 +0.1 -0.9 2 Jul 39.0 71.2 low 55%
Wudinna Aero 18.1 +0.4 25.6 29 Aug 6.4 +0.3 -2.9 27 Jun 121.0 105.6 high 115%
Upper North (district 19)
Hawker 17.1 +0.4 24.6 29 Aug 4.5 +0.4 -3.0 21 Jun 61.0 102.6 low 59%
Yongala 14.4 +0.8 21.8 5 Jul 2.8 +0.3 -3.4 20 Aug 82.8 121.1 low 68%
Northeast (district 20)
Gluepot Reserve (Gluepot) 18.1 +0.4 26.1 29 Aug 3.6 -0.4 -5.0 22 Jun 52.3 63.9 low 82%
Yunta Airstrip 17.2 +0.9 24.9 10 Aug 3.1 -0.4 -5.5 21 Jun 30.6 43.4 low 71%
Lower North (district 21)
Clare High School 14.2 +0.7 22.0 29 Aug 4.2 -0.2 -3.1 22 Jun 165.8 199.1 low 83%
Port Pirie Aerodrome AWS 18.1   25.6 29 Aug 6.1   -1.7 20 Aug 64.4
Snowtown (Rayville Park) 16.9 +0.8 25.8 29 Aug 4.5 -0.3 -2.2 22 Jun 101.6 136.8 low 74%
Yorke Peninsula (district 22A)
Edithburgh 16.0 +0.4 21.8 11 Jun 7.8 -0.1 1.4 2 Jul 154.6 154.5 average 100%
Kadina AWS 16.6 +0.5 24.6 29 Aug 6.1 +0.9 -2.1 11 Jul 76.2 105.5 low 72%
Minlaton Aero 16.5 +0.5 25.2 29 Aug 7.5 +0.3 1.0 10 Jul
Stenhouse Bay 16.0 0.0 23.2 29 Aug 9.4 -0.2 4.4 28 Jun 244.8 203.0 high 121%
Warooka 15.9 +0.4 22.0 29 Aug 8.2 +0.2 4.2 10 Jul 182.3 189.3 average 96%
Kangaroo Island (district 22B)
Cape Borda 14.8 +0.1 21.0 24 Aug 9.2 -0.2 3.0 27 Jun 324.0 254.1 high 128%
Cape Willoughby 14.7 +0.2 20.8 29 Aug 10.2 +0.1 6.1 20 Jul 204.5 230.1 average 89%
Kingscote Aero 15.7 -0.2 21.0 29 Aug 6.6 +0.5 -0.3 2 Jul 206.4 189.2 average 109%
Parndana Cfs AWS 14.2   19.6 29 Aug 7.1   1.3 27 Jun 302.2
Adelaide Plains (district 23A)
Adelaide (Kent Town) 16.5 +0.5 25.9 29 Aug 8.2 +0.3 2.3 28 Jun 205.2 222.1 average 92%
Adelaide (West Terrace / ngayirdapira) 16.3 +0.7 25.4 29 Aug 8.6 +0.6 2.9 28 Jun 177.0 199.3 average 89%
Adelaide Airport 16.1 +0.5 26.3 29 Aug 8.3 +0.9 2.2 28 Jun 148.6 166.0 average 90%
Edinburgh RAAF 16.6 +0.7 26.1 29 Aug 6.8 +0.4 -0.2 26 Jun 108.8 156.9 low 69%
Parafield Airport 16.7 +0.9 26.2 29 Aug 6.8 +0.1 -0.7 28 Jun 136.6 166.3 low 82%
Roseworthy AWS 16.7 +0.7 25.5 29 Aug 5.7 -0.2 -0.4 27 Jun 115.0 135.8 average 85%
County Light (district 23B)
Nuriootpa Pirsa 14.6 +0.5 23.7 29 Aug 4.8 -0.1 -2.4 1 Jul 132.0 170.9 low 77%
Rosedale (Turretfield Research Centre) 16.2 +0.8 25.2 29 Aug 5.2 -0.6 -1.2 11 Jul 122.8 173.5 low 71%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 16.4 +0.5 24.7 29 Aug 8.1 -0.2 0.6 13 Jul 119.4 153.4 low 78%
Kuitpo Forest Reserve 13.4 +0.4 22.6 29 Aug 7.1 +0.1 1.3 26 Jun 252.6 309.3 low 82%
Mount Barker 14.7 +1.1 21.3 29 Aug 5.9 +1.0 -1.5 26 Jun 279.2 309.6 average 90%
Mount Crawford AWS 12.0 +0.3 20.4 29 Aug 6.1 0.0 1.0 26 Jun 226.0 265.1 average 85%
Mount Lofty 10.4 +1.1 18.7 29 Aug 5.4 +0.2 0.0 26 Jun 402.4 431.7 average 93%
Noarlunga 15.8 +0.4 25.5 29 Aug 9.2 +0.3 3.8 13 Jul 156.4 182.1 low 86%
Parawa (Second Valley Forest AWS) 12.5 +0.3 20.3 29 Aug 7.2 -0.1 3.3 26 Jun 290.0 352.9 low 82%
Victor Harbor (Encounter Bay) 16.3 +0.3 24.9 29 Aug 6.5 -0.4 -0.9 13 Jul 222.8 235.2 average 95%
Upper Murray Valley (district 24A)
Loxton Research Centre 17.3 +0.7 25.9 5 Jul 4.7 +0.4 -3.0 14 Jul 71.6 78.7 average 91%
Renmark Aero 17.7 +0.5 25.6 10 Aug 4.4 +0.2 -3.9 13 Jul 57.8 60.7 average 95%
Lower Murray Valley (district 24B)
Eudunda 14.7 +1.0 23.7 29 Aug 5.5 +0.2 0.0 2 Jul 110.8 158.6 low 70%
Meningie 16.1 +0.5 24.2 29 Aug 7.0 0.0 -1.5 28 Jun 173.7 181.3 average 96%
Murray Bridge (Pallamana Aerodrome) 17.2 +0.9 25.7 29 Aug 4.7 0.0 -2.6 28 Jun 80.0 96.3 low 83%
Strathalbyn Racecourse 16.1 +0.4 23.7 29 Aug 6.9 0.0 -0.4 13 Jul 135.2 158.0 average 86%
Upper Southeast (district 25B)
Keith 15.8 +0.2 21.9 29 Aug 5.7 -0.1 -1.0 26 Jun 193.2 166.1 average 116%
Keith (Munkora) 15.5 0.0 20.5 29 Aug 5.0 0.0 -2.0 13 Jul 153.2 159.7 average 96%
Lameroo (Austin Plains) 15.7 +0.2 22.6 29 Aug 4.5 -0.1 -0.8 13 Jul 81.4 91.2 low 89%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 14.4 0.0 19.2 29 Aug 7.5 -0.3 1.1 13 Jul 247.4 221.6 average 112%
Coonawarra 14.3 -0.1 19.3 27 Jul 5.1 -0.2 -1.4 5 Jun 252.0 232.2 average 109%
Mount Gambier Aero 13.8 +0.1 19.0 27 Jul 5.3 -0.2 -1.3 13 Jul 352.0 280.9 high 125%
Naracoorte Aerodrome 14.4 -0.4 18.8 28 Jul 5.8 +0.4 -0.4 5 Jun 256.0 193.3 high 132%
Padthaway South 14.7 -0.2 19.3 2 Aug 5.5 -0.2 -1.2 22 Jun 271.4 192.3 v high 141%
Robe Airfield 14.8 -0.3 19.3 2 Aug 6.6 -0.2 -1.0 5 Jun 314.2 277.5 average 113%

Notes

The Seasonal 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