South Australia in July 2017: very warm days and drier than average in most areas

July rainfall in South Australia was below average across most of the State, although some agricultural districts had average to above average rainfall. Daytime temperatures were warmer than average for July across the whole State, while night time temperatures tended to be closer to the July average. Overall, it was South Australia's third-warmest July on record for mean temperature, and the warmest July since 1975.

Drier than average for most of the State

  • Driest July for South Australia since 2007
  • July rainfall was below average across most of South Australia
  • Some agricultural areas received average to above average rainfall, but it remained drier than average for much of the northern Eyre Peninsula, in the Riverland, and in the far West Coast of the State
  • After a much drier than average June, a surface trough with embedded low pressure systems crossed south of the State during the first week of July, producing rainfall totals in excess of 10 mm to many agricultural districts
  • A cold front later in the month resulted in rainfall totals of 25 mm or more on the Fleurieu Peninsula and in the southeast from 17-19 July
  • Central and eastern pastoral districts received little or no rain during July
  • July continues a run of three consecutive months of drier than average conditions for South Australia as a whole
  • Two sites had their highest July daily rainfall on record
  • Several sites had their highest total July rainfall for at least 20 years
  • Two sites with 20 years of record had their lowest total July rainfall on record
  • Numerous sites, particularly in the Flinders and Mid North districts, had their lowest total July rainfall for at least 20 years

Third-warmest July on record

  • South Australia's third-warmest July on record (overall warmest mean temperature for July since 1975)
  • Third-warmest mean maximum temperatures in July for the State as a whole (warmest July days since 2002)
  • Daytime temperatures in July were very much warmer than average across most of South Australia
  • For the State as a whole, mean minimum temperatures were slightly warmer than average
  • Night time temperatures were cooler than average in southern parts of the pastoral districts and in the Riverland, and warmer than average across central agricultural districts and in a large area extending north around Coober Pedy
  • Warm and windy conditions across the State from 27-29 July resulted in many sites having their highest July temperature on record
  • Numerous sites had either their highest July mean daily maximum temperature on record or highest July mean daily maximum temperature for at least 20 years
  • Several sites had their warmest July since 1975

Further information

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Extremes in July 2017
Hottest day 31.2 °C at Nullarbor on the 28th
31.2 °C at Oodnadatta Airport on the 29th
Warmest days on average 22.7 °C at Oodnadatta Airport
Coolest days on average 10.3 °C at Mount Lofty
Coldest day 7.4 °C at Mount Lofty on the 31st
Coldest night -4.4 °C at Yongala on the 28th
Coolest nights on average 2.3 °C at Yongala
Warmest nights on average 11.8 °C at Neptune Island
Warmest night 15.5 °C at Oodnadatta Airport on the 30th
Warmest on average overall 14.6 °C at Oodnadatta Airport
Coolest on average overall 7.9 °C at Mount Lofty
Wettest overall 298.0 mm at Uraidla
Driest overall 0 mm at Andamooka
0 mm at Roxby Downs (Olympic Dam Aerodrome)
0 mm at Tarcoola Aero
0 mm at Woomera Aerodrome
Wettest day 60.0 mm at Penneshaw on the 4th
Strongest wind gust 106 km/h at Neptune Island on the 17th

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 July daily rainfall
New record
(mm)
Old
record
Years of
record
Penneshaw 60.0 on the 4th 45.0 on the 8th in 1993 106
Nuriootpa Pirsa 30.8 on the 19th 24.0 on the 28th in 1998 21



Highest July total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
July
Minlaton 115.8 117.7 in 1974* 58.6
Neptune Island 125.6 142.0 in 1986 77.0
Lobethal 229.6 230.8 in 1986* 129.8
Corny Point 119.6 127.6 in 1995 65.0
Curramulka 116.0 131.6 in 1995 56.8
Heathfield Works Depot 254.0 306.4 in 1995 161.2
Minlaton (Eversley) 99.0 127.6 in 1995 64.2
Aldgate 279.8 360.0 in 1995* 173.5
Blackwood (Wittunga) 167.0 172.4 in 1995* 107.2
Coulta 120.8 124.6 in 1996 89.1
Uraidla 298.0 336.8 in 1995* 161.6

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




Record lowest July total rainfall
New record
(mm)
Old
record
Years of
record
Average for
July
Roxby Downs (Olympic Dam Aerodrome) 0.0 0.4 in 2014 20 6.7
Yunta Airstrip 1.8 = 1.8 in 2003 20 15.4

Lowest July total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
July
Hawker 1.0 0.5 in 1884 33.3
Nullarbor 5.4 3.8 in 1977* 27.2
Appila 17.6 8.0 in 1997 40.9
Booleroo Centre 15.6 4.8 in 1997 42.2
Bruce 5.2 0.2 in 1997 25.0
Hawker (Wilson) 2.0 1.4 in 1997 31.5
Huddleston (Willow Ponds) 19.6 19.4 in 1997 54.0
Loxton Research Centre 9.2 7.8 in 1997 27.0
Orroroo 9.6 3.2 in 1997 35.6
Port Wakefield 14.4 14.2 in 1997 35.6
Yacka 22.2 15.6 in 1997 48.4
Yongala 11.5 10.2 in 1997 39.2

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




Record highest July temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Arkaroola 27.0 on the 29th 26.2 on the 27th in 2002 40 16.6
Leigh Creek Airport 26.3 on the 27th = 26.3 on the 27th in 2002 34 16.6
Loxton Research Centre 27.3 on the 29th 24.9 on the 25th in 2007 34 15.8
Nullarbor 31.2 on the 28th 28.8 on the 24th in 2007 31 18.2
Clare High School 22.5 on the 29th 21.2 on the 21st in 2016 24 12.8
Coober Pedy Airport 30.4 on the 29th 30.1 on the 31st in 1996 24 18.4
Mount Crawford AWS 20.3 on the 29th 18.7 on the 21st in 2016 24 10.9
Renmark Aero 27.6 on the 29th 26.0 on the 25th in 2007 22 16.3
Strathalbyn Racecourse 23.9 on the 29th 22.6 on the 21st in 2016 22 14.9
Nuriootpa Pirsa 23.5 on the 29th 22.0 on the 21st in 2016 21 13.4
Marree Aero 29.1 on the 29th 29.0 on the 27th in 2002 20 19.1
Roseworthy AWS 24.7 on the 29th 24.5 on the 27th in 2002 20 15.3
Roxby Downs (Olympic Dam Aerodrome) 29.0 on the 27th 28.0 on the 27th in 2002 20 18.4
Tarcoola Aero 29.4 on the 27th 28.1 on the 21st in 2016 20 18.7
Yunta Airstrip 25.4 on the 29th 25.0 on the 27th in 2002 20 15.4



Record highest July mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Cape Willoughby 15.3 15.2 in 2013 49 14.2
Hawker 18.4 = 18.4 in 1975 43 15.9
Loxton Research Centre 17.8 17.7 in 1994 33 15.8
North Shields (Port Lincoln AWS) 17.5 17.4 in 1993 25 16.0
Renmark Aero 18.4 17.9 in 2002 21 16.3
Stenhouse Bay 16.4 = 16.4 in 2002 21 15.5
Strathalbyn Racecourse 16.3 = 16.3 in 2002 21 14.9
Nuriootpa Pirsa 14.8 14.6 in 2002 20 13.4

Highest July mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
Mount Barker 15.0 15.1 in 1975 12.9
Oodnadatta Airport 22.7 23.0 in 1975* 19.6
Adelaide Airport 16.2 16.5 in 1994 14.9
Edinburgh RAAF 16.5 16.7 in 1994 15.3
Nullarbor 20.2 21.1 in 1994 18.2
Parafield Airport 16.9 17.0 in 1994 15.1

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




Highest July mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
Edinburgh RAAF 11.9 12.3 in 1975 10.7
Kyancutta 12.1 13.1 in 1975 10.9
Oodnadatta Airport 14.6 15.6 in 1975* 12.7

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




Summary statistics for July 2017
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2017
Diff
from
average
Highest for
July
2017
Mean for
July
2017
Diff
from
average
Lowest for
July
2017
Total for
July
2017
Average
for
July
Rank of
July
2017
Fraction of
July
average
Northwest (district 16)
Andamooka 20.4 +2.0 28.2 27th 5.7 -0.3 1.3 6th 0 11.8 lowest 0%
Coober Pedy Airport 21.1 +2.7 30.4 29th 6.9 +0.5 2.0 5th 2.6 4.9 average 53%
Ernabella (Pukatja) 21.0 +2.8 28.5 29th 4.5 +0.1 -2.4 9th 8.0 13.1 average 61%
Mount Ive 18.6   23.6 22nd 4.5   -0.8 11th 6.3 23.3 low 27%
Roxby Downs (Olympic Dam Aerodrome) 20.7 +2.3 29.0 27th 3.6 -0.6 -2.9 20th 0 6.7 lowest 0%
Tarcoola Aero 20.9 +2.2 29.4 27th 4.6 0.0 -1.0 10th 0 11.7 lowest 0%
Woomera Aerodrome 19.7 +2.7 28.2 27th 5.4 -0.4 1.4 6th 0 14.5 lowest 0%
Far North (district 17)
Arkaroola     27.0 29th 2.7 -0.6 -3.0 16th 8.3 14.7 average 56%
Leigh Creek Airport 19.0 +2.4 26.3 27th 4.8 +0.1 -0.3 6th 2.6 15.8 low 16%
Marree Aero 21.3 +2.2 29.1 29th 4.7 -0.4 0.2 6th 6.4 5.0 high 128%
Moomba Airport 22.0 +2.4 29.9 27th 6.4 0.0 2.3 21st 0.4 13.9 average 3%
Oodnadatta Airport 22.7 +3.1 31.2 29th 6.5 +0.6 1.4 20th 1.2 9.5 average 13%
Western Agricultural (district 18)
Ceduna AMO 19.2 +1.8 29.6 28th 6.1 +0.3 0.2 10th 21.0 39.4 low 53%
Cleve 17.1 +1.8 23.4 28th 7.7 +0.6 3.6 20th 36.2 46.3 average 78%
Cleve Aerodrome 17.1 +1.6 23.3 28th 7.8 +0.4 3.9 20th 28.2 43.5 low 65%
Coffin Bay (Point Avoid) 16.6   21.1 28th 9.4   4.8 20th 87.0
Cummins Aero 16.9 +1.5 23.3 28th 6.0 +0.5 2.0 11th 72.6 69.2 average 105%
Elliston 17.7 +1.3 25.6 28th 8.5 +0.6 4.2 28th
Kimba 16.3 +0.8 23.0 28th 4.9 -0.1 1.2 21st 26.4 41.5 low 64%
Kyancutta 18.7 +1.6 25.7 28th 5.4 +0.6 0.7 28th 27.0 40.3 low 67%
Minnipa Pirsa 17.5 +1.4 24.6 28th 7.0 +0.4 4.2 20th 25.6 36.4 average 70%
Neptune Island 16.0 +0.7 18.5 28th 11.8 +0.5 8.4 31st 125.6 77.0 v high 163%
North Shields (Port Lincoln AWS) 17.5 +1.5 23.1 28th 7.6 +0.1 3.6 21st 67.2 57.8 average 116%
Nullarbor 20.2 +2.0 31.2 28th 5.1 -0.1 -0.6 9th 5.4 27.2 v low 20%
Port Augusta Aero 19.4 +1.7 25.8 28th 2.5 -2.2 -2.3 11th 2.4 16.7 v low 14%
Streaky Bay 17.6 +1.1 22.1 22nd 9.2 +0.7 5.4 20th 64.7 61.2 average 106%
Whyalla Aero 19.0 +2.1 25.7 29th 5.3 +0.1 0.1 20th 11.8 22.9 low 52%
Wudinna Aero 18.5 +1.7 25.6 28th 6.7 +0.5 2.6 28th 26.4 36.1 low 73%
Upper North (district 19)
Hawker 18.4 +2.5 25.5 29th 3.1 -0.6 -3.5 20th 1.0 33.3 v low 3%
Yongala 14.9 +2.1 23.2 29th 2.3 +0.1 -4.4 28th 11.5 39.2 v low 29%
Northeast (district 20)
Gluepot Reserve (Gluepot) 18.7 +1.8 27.0 29th 3.5 -0.1 -3.0 1st 12.2 20.2 low 60%
Yunta Airstrip 17.6 +2.2 25.4 29th 3.3 +0.2 -3.6 20th 1.8 15.4 lowest 12%
Lower North (district 21)
Clare High School 14.2 +1.4 22.5 29th 4.2 +0.1 -2.4 20th 55.6 68.0 average 82%
Port Pirie Aerodrome AWS 17.7   22.4 29th 6.1   -0.2 20th 25.0
Snowtown (Rayville Park) 16.3 +1.1 23.1 29th 4.7 0.0 -1.4 20th 34.2 41.7 average 82%
Yorke Peninsula (district 22A)
Edithburgh 16.1 +1.1 19.8 28th 6.7 -0.8 3.0 20th 70.8 48.6 high 146%
Kadina AWS 16.5 +1.0 20.5 29th 5.9 +0.6 -0.3 20th 19.0 33.5 v low 57%
Minlaton Aero 15.9 +0.6 18.4 28th 7.5 +0.5 2.6 20th 89.6 51.0 v high 176%
Stenhouse Bay 16.4 +0.9 18.9 22nd 9.1 0.0 5.4 21st 114.0 70.5 v high 162%
Warooka 15.6 +0.6 17.5 28th 8.2 +0.6 3.8 20th 79.0 65.6 high 120%
Kangaroo Island (district 22B)
Cape Borda 14.8 +0.6 17.6 28th 9.8 +0.7 5.1 20th 109.4 92.7 high 118%
Cape Willoughby 15.3 +1.1 18.8 28th 10.1 +0.3 7.5 9th 74.8 81.9 average 91%
Kingscote Aero 16.0 +0.6 20.1 28th 5.6 -0.4 0.5 9th 68.0 68.6 average 99%
Parndana Cfs AWS 14.5   18.7 28th 6.6   2.6 20th 102.0
Adelaide Plains (district 23A)
Adelaide (Kent Town) 16.4 +1.1 22.1 29th 8.1 +0.6 3.1 20th 91.2 77.7 average 117%
Adelaide (West Terrace / ngayirdapira) 16.3 +1.4 21.8 29th 8.8 +1.3 3.3 20th 75.2 66.6 average 113%
Adelaide Airport 16.2 +1.3 20.8 29th 8.2 +1.2 2.6 20th 79.8 60.3 high 132%
Edinburgh RAAF 16.5 +1.2 24.2 29th 7.2 +1.1 3.1 20th 73.2 54.5 high 134%
Parafield Airport 16.9 +1.8 23.5 29th 7.1 +0.8 1.8 20th 76.0 59.6 high 128%
Roseworthy AWS 16.5 +1.2 24.7 29th 6.1 +0.3 0.9 20th 68.8 45.6 v high 151%
County Light (district 23B)
Nuriootpa Pirsa 14.8 +1.4 23.5 29th 5.1 +0.5 -0.2 20th 88.6 58.5 v high 151%
Rosedale (Turretfield Research Centre) 16.3 +1.6 24.2 29th 5.8 +0.2 0.6 20th 81.8 59.6 high 137%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 16.7 +1.5 23.3 28th 7.9 -0.1 2.9 1st 54.8 51.2 average 107%
Kuitpo Forest Reserve 13.3 +1.0 19.8 29th 6.9 +0.3 3.4 21st 152.8 114.8 high 133%
Mount Barker 15.0 +2.1 21.4 29th 5.7 +1.1 1.0 20th 151.2 107.7 high 140%
Mount Crawford AWS 12.1 +1.2 20.3 29th 6.2 +0.4 3.7 15th 148.6 99.3 high 150%
Mount Lofty 10.3 +1.7 16.8 28th 5.4 +0.5 2.8 20th 233.6
Noarlunga 15.6 +0.8 19.9 28th 9.3 +0.7 5.1 15th 75.8 66.6 average 114%
Parawa (Second Valley Forest AWS) 12.4 +0.8 15.3 28th 7.3 +0.4 4.2 21st 164.0 130.9 high 125%
Victor Harbor (Encounter Bay) 16.4 +1.0 22.5 28th 6.3 -0.4 1.4 1st 106.6 83.6 high 128%
Upper Murray Valley (district 24A)
Loxton Research Centre 17.8 +2.0 27.3 29th 3.7 -0.2 -3.3 2nd 9.2 27.0 v low 34%
Renmark Aero 18.4 +2.1 27.6 29th 3.5 -0.3 -3.9 1st 8.0 19.0 low 42%
Lower Murray Valley (district 24B)
Eudunda 14.5 +1.4 23.6 29th 5.4 +0.4 0.3 21st 48.0 51.3 average 94%
Meningie 15.8 +0.8 19.4 29th 7.4 +0.6 2.8 1st 106.4 62.2 v high 171%
Murray Bridge (Pallamana Aerodrome) 17.2 +1.8 26.9 29th 4.0 -0.7 -1.7 2nd 30.2 38.3 average 79%
Strathalbyn Racecourse 16.3 +1.4 23.9 29th 6.8 +0.3 1.9 1st 67.8 56.4 high 120%
Murray Mallee (district 25A)
Karoonda 16.8 +1.3 26.8 29th 4.8 0.0 -0.3 2nd 31.2 35.2 average 89%
Upper Southeast (district 25B)
Keith 15.9 +0.9 22.2 29th 5.9 +0.4 2.5 11th 72.4 55.6 high 130%
Keith (Munkora) 15.7 +0.8 21.8 29th 4.8 -0.3 0.6 15th 83.2 57.1 high 146%
Lameroo (Austin Plains) 15.8 +1.2 24.9 29th 4.0 -0.4 -0.6 1st 27.0 32.5 average 83%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 14.4 +0.4 16.8 25th 7.5 -0.1 1.1 2nd 127.6 83.1 high 154%
Coonawarra 14.4 +0.6 17.3 25th 5.0 -0.1 0.0 11th 100.6 80.5 high 125%
Mount Gambier Aero 14.0 +0.8 16.9 22nd 5.5 +0.3 1.1 15th 102.0 100.2 average 102%
Naracoorte Aerodrome 14.5 +0.5 17.6 25th 5.5 +0.3 1.7 6th 86.0 59.6 high 144%
Padthaway South 15.0 +0.7 19.3 29th 5.5 0.0 0.7 11th 72.4 63.6 average 114%
Robe Airfield 15.1 +0.6 17.4 25th 6.5 -0.1 1.3 2nd 139.0 101.0 high 138%

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 10 am on Tuesday 1 August 2017. 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