Tuesday, 1 May 2018 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0

South Australia in April 2018: warmest April on record

April in South Australia was much warmer than average. For the State as a whole, both mean and daytime temperatures were the warmest on record, while overnight temperatures were third-warmest. Rainfall was below average throughout the State, with parts of the Agricultural and southern Pastoral districts very much drier than average.

Drier than average

  • April rainfall totals were below average throughout the State
  • Little or no rain fell in the Far North during April
  • Overall, it was South Australia's driest April since 2005, with total rainfall 78% below average

Warmest April on record

Further information

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Extremes Maps Records Summaries Important notes the top

Extremes in April 2018
Hottest day 42.2 °C at Nullarbor on the 9th
Warmest days on average 33.2 °C at Oodnadatta Airport
Coolest days on average 21.0 °C at Neptune Island
Coldest day 12.9 °C at Mount Lofty on the 14th
Coldest night 0.9 °C at Keith (Munkora) on the 27th
Coolest nights on average 9.1 °C at Keith (Munkora)
Warmest nights on average 18.4 °C at Moomba Airport
Warmest night 25.2 °C at Cleve Aerodrome on the 10th
Warmest on average overall 25.7 °C at Moomba Airport
Coolest on average overall 15.9 °C at Mount Gambier Aero
Wettest overall 95.4 mm at Crafers West
Driest overall 0 mm at several locations
Wettest day 40.0 mm at Crafers West on the 15th
Strongest wind gust 115 km/h at Naracoorte Aerodrome on the 13th
115 km/h at Neptune Island on the 14th

Extremes Maps Records Summaries Important notes the top

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 April temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
April
Adelaide (West Terrace / ngayirdapira) 36.3 on the 11th 35.8 on the 5th in 1938 93 22.1
Ceduna AMO 41.3 on the 9th 40.8 on the 9th in 2005 77 24.2
Mount Barker 36.0 on the 10th 35.2 on the 2nd in 2005 62 20.5
Parafield Airport 38.2 on the 11th = 38.2 on the 9th in 2005 62 22.7
Cleve 38.1 on the 9th 38.0 on the 2nd in 2005 61 22.7
Streaky Bay 38.1 on the 9th 37.5 on the 1st in 2009 61 23.7
Eudunda 36.0 on the 10th 35.8 on the 2nd in 2005 54 21.4
Warooka 33.5 on the 10th 33.2 on the 3rd in 1986 54 22.0
Hawker 37.0 on the 10th = 37.0 on the 2nd in 2005 45 25.4
Adelaide (Kent Town) 36.9 on the 11th = 36.9 on the 9th in 2005 42 22.7
Maitland 37.0 on the 9th 36.5 on the 2nd in 2005 37 22.5
Leigh Creek Airport 37.8 on the 11th 37.3 on the 2nd in 2005 34 26.2
Loxton Research Centre 39.4 on the 10th 37.9 on the 4th in 1986 34 23.9
Nullarbor 42.2 on the 9th 42.0 on the 1st in 2005 32 24.7
Edithburgh 37.9 on the 11th = 37.9 on the 1st in 2014 26 21.1
Kingscote Aero 34.4 on the 9th 33.9 on the 9th in 2005 24 21.6
Renmark Aero 39.7 on the 10th 38.2 on the 2nd in 2005 23 24.4
Gluepot Reserve (Gluepot) 40.0 on the 10th 37.9 on the 2nd in 2005 20 24.8
Snowtown (Rayville Park) 38.0 on the 10th 37.6 on the 1st in 2014 20 24.6
Wudinna Aero 40.0 on the 9th = 40.0 on the 2nd in 2005 20 25.2
Yunta Airstrip 37.6 on the 10th 36.4 on the 2nd in 2005 20 24.4


Record highest April mean daily maximum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
April
Yongala 26.7 = 26.7 in 2005 92 21.9
Kyancutta 30.1 29.7 in 2005 86 25.3
Cleve 27.0 26.2 in 2005 76 22.7
Woomera Aerodrome 30.5 29.9 in 2005 69 25.5
Adelaide Airport 25.3 25.0 in 2005 63 22.2
Keith 26.1 26.0 in 2005 63 22.5
Parafield Airport 27.2 27.0 in 2005 61 22.7
Warooka 24.9 24.2 in 2005 58 22.0
Rosedale (Turretfield Research Centre) 27.4 26.5 in 2005 56 23.1
Eudunda 25.7 25.3 in 2005 53 21.4
Meningie 24.4 24.3 in 2005 51 21.7
Cape Willoughby 21.3 21.2 in 2007 50 19.1
Edinburgh RAAF 27.1 26.6 in 2005 45 23.1
Adelaide (Kent Town) 26.6 26.1 in 2005 41 22.7
Arkaroola 29.6 29.3 in 2005 40 25.2
Leigh Creek Airport 31.2 30.8 in 2005 33 26.2
Loxton Research Centre 28.1 27.0 in 2005 33 23.9
Nullarbor 27.9 27.2 in 1993 31 24.7
Whyalla Aero 28.2 27.0 in 2005 30 23.8
North Shields (Port Lincoln AWS) 25.3 24.7 in 1994 26 22.2
Edithburgh 24.2 23.3 in 2005 25 21.1
Clare High School 26.0 25.8 in 2005 24 21.6
Coober Pedy Airport 31.5 31.1 in 2005 23 27.0
Kingscote Aero 24.6 24.1 in 2005 23 21.6
Mount Crawford AWS 23.2 22.9 in 2005 23 19.2
Parawa (Second Valley Forest AWS) 21.7 21.3 in 2005 23 18.1
Renmark Aero 28.5 28.0 in 2005 22 24.4
Stenhouse Bay 23.5 23.0 in 2007 22 20.9
Cleve Aerodrome 27.0 26.4 in 2005 21 23.2
Nuriootpa Pirsa 25.6 25.3 in 2005 21 21.8
Strathalbyn Racecourse 25.8 25.3 in 2005 21 22.2
Kuitpo Forest Reserve 23.3 22.8 in 2005 20 19.6
Minnipa Pirsa 28.5 28.4 in 2005 20 24.8
Roseworthy AWS 28.0 27.0 in 2005 20 24.0
Roxby Downs (Olympic Dam Aerodrome) 31.8 30.8 in 2005 20 27.1
Tarcoola Aero 31.5 30.4 in 2005 20 26.9


Record highest April daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
April
Kimba 22.5 on the 10th 21.6 on the 10th in 2005 51 11.3
North Shields (Port Lincoln AWS) 22.3 on the 10th 20.9 on the 1st in 2005 27 12.2
Mount Crawford AWS 24.7 on the 10th 23.1 on the 2nd in 2005 24 10.4
Kuitpo Forest Reserve 23.7 on the 10th 22.0 on the 10th in 2005 21 11.2
Yunta Airstrip 21.9 on the 10th 21.1 on the 1st in 2014 20 9.2


Record highest April mean daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
April
Cleve 14.9 14.3 in 2007 77 12.3
Woomera Aerodrome 15.8 15.6 in 1981 69 13.1
Adelaide Airport 14.0 = 14.0 in 1968 63 11.8
Warooka 14.5 14.1 in 2007 58 12.6
Neptune Island 16.7 16.6 in 2007 56 15.0
Eudunda 12.0 = 12.0 in 1971 53 9.9
Andamooka 16.7 16.1 in 2002 48 14.1
Clare High School 11.0 10.9 in 2010 24 9.1
Coober Pedy Airport 17.3 16.5 in 2002 23 14.3
Kingscote Aero 10.6 10.3 in 2017 23 8.8
Mount Crawford AWS 12.8 12.3 in 2007 23 10.4
Parawa (Second Valley Forest AWS) 13.3 13.2 in 2007 23 11.2
Stenhouse Bay 15.7 15.3 in 2013 22 14.1
Strathalbyn Racecourse 12.0 = 12.0 in 2007 21 10.5
Kuitpo Forest Reserve 13.2 12.8 in 2007 20 11.2
Minnipa Pirsa 14.3 13.7 in 2007 20 12.0

Highest April mean daily minimum temperature for at least 20 years
Observed
(°C)		 Most recent
higher		 Average for
April
Yongala 10.2 10.5 in 1961 7.3
Mount Barker 11.2 11.4 in 1968 8.4
Oodnadatta Airport 17.4 17.6 in 1973* 14.4

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



Record highest April mean temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
April
Mount Barker 18.2 17.6 in 2005 117 14.4
Kyancutta 20.9 20.1 in 2005 86 17.4
Ceduna AMO 20.0 = 20.0 in 1967 76 17.5
Cleve 20.9 20.1 in 2005 76 17.5
Oodnadatta Airport 25.3 = 25.3 in 2005 69 21.5
Woomera Aerodrome 23.2 22.7 in 2005 69 19.3
Adelaide Airport 19.7 19.0 in 2007 63 17.0
Keith 18.4 18.3 in 2005 63 15.9
Warooka 19.7 18.9 in 2005 58 17.3
Elliston 19.4 = 19.4 in 2005 56 17.3
Rosedale (Turretfield Research Centre) 19.7 19.6 in 2005 56 16.9
Eudunda 18.9 18.3 in 2005 53 15.6
Cape Willoughby 18.5 = 18.5 in 2007 50 16.7
Andamooka 24.2 23.8 in 2005 48 20.7
Edinburgh RAAF 20.2 = 20.2 in 2005 45 17.4
Adelaide (Kent Town) 20.5 20.2 in 2005 41 17.6
Arkaroola 21.4 = 21.4 in 2005 39 18.2
Leigh Creek Airport 23.4 = 23.4 in 2005 33 19.6
Loxton Research Centre 18.9 18.3 in 2005 33 16.2
Coonawarra 16.5 16.2 in 2005 32 14.4
Nullarbor 20.5 20.2 in 2005 31 18.2
Whyalla Aero 20.9 20.4 in 2005 29 17.9
Cape Jaffa (The Limestone) 17.2 17.0 in 2007 26 15.3
North Shields (Port Lincoln AWS) 19.5 18.9 in 2007 26 17.2
Edithburgh 19.2 18.7 in 2005 25 17.1
Clare High School 18.5 18.1 in 2005 24 15.3
Coober Pedy Airport 24.4 23.6 in 2005 23 20.6
Kingscote Aero 17.6 16.6 in 2007 23 15.2
Mount Crawford AWS 18.0 17.2 in 2005 23 14.8
Parawa (Second Valley Forest AWS) 17.5 16.9 in 2007 23 14.6
Renmark Aero 19.4 19.3 in 2005 22 16.8
Stenhouse Bay 19.7 19.1 in 2007 22 17.5
Cleve Aerodrome 20.5 20.1 in 2005 21 17.7
Nuriootpa Pirsa 18.0 = 18.0 in 2005 21 15.4
Strathalbyn Racecourse 18.9 18.5 in 2005 21 16.4
Kuitpo Forest Reserve 18.2 17.7 in 2005 20 15.4
Minnipa Pirsa 21.4 20.8 in 2005 20 18.4
Roseworthy AWS 20.2 19.4 in 2005 20 17.2
Roxby Downs (Olympic Dam Aerodrome) 23.3 22.1 in 2002 20 19.9
Tarcoola Aero 22.8 22.1 in 2005 20 19.6


Extremes Maps Records Summaries Important notes the top

Summary statistics for April 2018
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
April
2018		 Diff
from
average		 Highest for
April
2018		 Mean for
April
2018		 Diff
from
average		 Lowest for
April
2018		 Total for
April
2018		 Average
for
April		 Rank of
April
2018		 Fraction of
April
average
Northwest (district 16)
Andamooka 31.7 +4.4 38.0 9th 16.7 +2.6 13.1 14th 0 16.5 lowest 0%
Coober Pedy Airport 31.5 +4.5 37.5 11th 17.3 +3.0 12.7 14th 1.2 12.9 average 9%
Ernabella (Pukatja) 30.9 +3.9 36.3 1st 15.8 +2.5 10.0 30th 6.2 16.7 average 37%
Mount Ive 29.8   38.1 9th 14.3   7.3 30th 8.3 15.9 average 52%
Roxby Downs (Olympic Dam Aerodrome) 31.8 +4.7 38.0 9th 14.9 +2.2 11.3 5th 0 17.8 lowest 0%
Tarcoola Aero 31.5 +4.6 39.6 9th 14.1 +1.9 8.6 13th 1.0 13.2 low 8%
Woomera Aerodrome 30.5 +5.0 38.3 9th 15.8 +2.7 11.4 14th 0 12.3 lowest 0%
Far North (district 17)
Arkaroola 29.6 +4.4 36.5 9th 13.0 +1.8 8.4 5th 0.8 15.1 average 5%
Leigh Creek Airport 31.2 +5.0 37.8 11th 15.7 +2.7 9.5 30th 0 15.1 lowest 0%
Marree Aero 32.9 +4.2 38.5 10th 16.1 +2.0 11.5 29th 0 9.2 lowest 0%
Moomba Airport 33.0 +3.8 37.4 11th 18.4 +2.8 12.4 28th 0 7.1 lowest 0%
Oodnadatta Airport 33.2 +4.7 38.2 10th 17.4 +3.0 11.8 30th 0 10.9 lowest 0%
Western Agricultural (district 18)
Ceduna AMO 27.2 +3.0 41.3 9th 12.7 +2.0 6.0 27th 17.8 19.9 average 89%
Cleve 27.0 +4.3 38.1 9th 14.9 +2.6 9.6 26th 12.8 28.9 average 44%
Cleve Aerodrome 27.0 +3.8 38.5 9th 13.9 +1.6 9.0 30th 8.2 25.7 low 32%
Coffin Bay (Point Avoid) 23.1   31.3 19th 14.2   9.9 30th 20.6
Cultana (Defence) 29.3   38.8 10th 15.1   10.5 30th 12.8
Cummins Aero 26.7 +3.1 36.9 9th 12.0 +1.4 5.5 26th 15.0 28.5 low 53%
Elliston 25.2 +2.9 33.9 19th 13.8 +1.6 9.6 5th 1.8 27.2 v low 7%
Kyancutta 30.1 +4.8 40.3 9th 11.6 +2.1 5.1 29th 3.5 19.5 low 18%
Minnipa Pirsa 28.5 +3.7 39.1 9th 14.3 +2.3 9.1 6th 3.2 15.7 low 20%
Neptune Island 21.0 +1.5 25.8 9th 16.7 +1.7 13.0 14th 21.6 30.3 average 71%
North Shields (Port Lincoln AWS) 25.3 +3.1 36.9 9th 13.6 +1.4 9.8 28th 13.4 19.9 average 67%
Nullarbor 27.9 +3.2 42.2 9th 13.1 +1.5 8.5 7th 10.6 22.6 average 47%
Port Augusta Aero 30.6 +4.0 40.3 10th 14.3 +1.3 9.9 5th 2.6 21.2 low 12%
Whyalla Aero 28.2 +4.4 40.1 10th 13.7 +1.8 7.3 30th 0.6 21.2 lowest 3%
Wudinna Aero 29.5 +4.3 40.0 9th 11.7 +1.6 4.9 30th 3.6 16.5 v low 22%
Upper North (district 19)
Hawker 29.4 +4.0 37.0 10th 13.2 +2.2 9.5 30th 0.8 20.1 low 4%
Yongala 26.7 +4.8 35.5 10th 10.2 +2.9 5.6 13th 7.6 25.3 low 30%
Northeast (district 20)
Gluepot Reserve (Gluepot) 29.2 +4.4 40.0 10th 9.9 +1.4 2.3 30th 0.4 20.8 v low 2%
Yunta Airstrip 28.3 +3.9 37.6 10th 11.4 +2.2 3.2 30th 0.4 11.7 low 3%
Lower North (district 21)
Clare High School 26.0 +4.4 35.4 10th 11.0 +1.9 6.4 3rd 23.2 39.5 average 59%
Port Pirie Aerodrome AWS 29.5   39.0 10th 13.1   7.9 28th 5.2
Snowtown (Rayville Park) 28.5 +3.9 38.0 10th 10.7 +1.3 4.6 30th 13.4 26.4 average 51%
Yorke Peninsula (district 22A)
Edithburgh 24.2 +3.1 37.9 11th 14.2 +1.1 8.9 13th 18.2 25.1 average 73%
Kadina AWS 27.4 +3.5 37.4 9th 11.9 +1.5 7.0 30th 0.2 28.5 v low 1%
Minlaton Aero 26.2 +3.0 37.1 11th 13.3 +1.4 8.6 26th 10.4 24.5 low 42%
Stenhouse Bay 23.5 +2.6 34.3 9th 15.7 +1.6 10.7 30th 21.8 27.1 average 80%
Warooka 24.9 +2.9 33.5 10th 14.5 +1.9 11.4 14th 14.8 32.9 low 45%
Kangaroo Island (district 22B)
Cape Borda 21.8 +2.1 27.8 8th 13.3 +0.9 8.5 4th 23.0 41.1 low 56%
Cape Willoughby 21.3 +2.2 28.7 9th 15.7 +1.5 11.7 14th 14.6 39.2 low 37%
Kingscote Aero 24.6 +3.0 34.4 9th 10.6 +1.8 3.7 30th 18.4 26.8 average 69%
Parndana Cfs AWS 23.7   31.8 9th 11.4   6.8 30th 18.6
Adelaide Plains (district 23A)
Adelaide (Kent Town) 26.6 +3.9 36.9 11th 14.2 +1.7 8.7 30th 22.2 39.0 average 57%
Adelaide (West Terrace / ngayirdapira) 26.2 +4.1 36.3 11th 14.7 +2.0 8.9 30th 14.4 44.1 low 33%
Adelaide Airport 25.3 +3.1 35.9 9th 14.0 +2.2 7.6 30th 14.6 34.4 low 42%
Edinburgh RAAF 27.1 +4.0 38.2 11th 13.3 +1.6 6.8 30th 10.0 30.2 low 33%
Parafield Airport 27.2 +4.5 38.2 11th 13.1 +1.3 8.2 28th 14.2 38.3 low 37%
Roseworthy AWS 28.0 +4.0 38.7 11th 12.1 +1.7 5.7 29th 18.4 31.8 average 58%
County Light (district 23B)
Nuriootpa Pirsa 25.6 +3.8 36.0 10th 10.5 +1.4 4.9 26th 24.8 34.9 average 71%
Rosedale (Turretfield Research Centre) 27.4 +4.3 37.8 9th 11.9 +1.2 6.0 6th 18.7 36.7 average 51%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 24.3 +2.7 36.0 9th 13.8 +1.5 7.9 30th 12.0 27.2 low 44%
Kuitpo Forest Reserve 23.3 +3.7 33.6 11th 13.2 +2.0 8.5 30th 45.0 58.0 average 78%
Mount Barker 25.2 +4.7 36.0 10th 11.2 +2.8 5.3 28th 53.4 58.1 average 92%
Mount Crawford AWS 23.2 +4.0 33.6 10th 12.8 +2.4 7.8 27th 32.4 44.2 average 73%
Mount Lofty 21.1 +5.3 31.0 11th 12.1 +2.3 7.2 27th 72.6
Noarlunga 25.3 +3.0 35.2 11th 15.5 +1.9 10.9 30th 26.2 33.0 average 79%
Parawa (Second Valley Forest AWS) 21.7 +3.6 30.6 11th 13.3 +2.1 9.0 30th 29.6 58.3 low 51%
Upper Murray Valley (district 24A)
Loxton Research Centre 28.1 +4.2 39.4 10th 9.7 +1.1 3.6 18th 1.6 18.0 v low 9%
Renmark Aero 28.5 +4.1 39.7 10th 10.3 +1.2 3.3 18th 0.8 17.8 v low 4%
Lower Murray Valley (district 24B)
Eudunda 25.7 +4.3 36.0 10th 12.0 +2.1 7.0 30th 15.2 33.3 average 46%
Meningie 24.4 +2.7 34.1 11th 11.7 +0.9 5.6 29th 11.8 37.5 low 31%
Murray Bridge (Pallamana Aerodrome) 27.3 +4.1 39.0 10th 10.6 +1.4 3.0 28th 2.0 27.0 v low 7%
Strathalbyn Racecourse 25.8 +3.6 36.8 11th 12.0 +1.5 6.6 28th 15.4 28.5 low 54%
Upper Southeast (district 25B)
Keith 26.1 +3.6 37.0 11th 10.7 +1.4 3.0 30th 14.7 32.7 average 45%
Keith (Munkora) 26.3 +3.1 37.5 11th 9.1 +1.0 0.9 27th 11.2 24.6 average 46%
Lameroo (Austin Plains) 27.0 +3.8 39.2 10th 9.6 +0.4 4.7 30th 3.0 26.1 v low 11%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 22.2 +2.3 32.3 9th 12.3 +1.6 5.6 18th 20.4 33.7 low 61%
Coonawarra 23.5 +2.5 32.9 10th 9.5 +1.7 2.6 18th 29.4 37.3 average 79%
Mount Gambier Aero 22.1 +2.6 34.2 10th 9.8 +1.0 3.0 29th 40.4 54.5 average 74%
Naracoorte Aerodrome 24.6 +2.6 33.4 8th 9.6 +1.6 1.6 18th 19.0 27.8 average 68%
Padthaway South 24.5 +2.5 35.4 11th 9.6 +1.5 1.5 30th 29.2 28.7 average 102%
Robe Airfield 22.2 +1.7 32.6 9th 10.4 +0.9 1.7 30th 42.2 42.4 average 100%

Extremes Maps Records Summaries Important notes the top

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 May 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

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