Monday, 2 May 2016 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
South Australia in April 2016: Rainfall below average, persistent warmth
Most of South Australia recorded a warmer and drier than normal April. Daytime and night time temperatures were above average in the first half of the month, particularly across the pastoral areas. Rainfall was below average across most of the State, especially across northern and eastern districts.
- Warmest April since 2013
- Below average rainfall, especially in the east
- Warmer days across the State
- Warmer nights across northern districts
Following a wetter March, April was a dry month for most of South Australia, with little rainfall activity being reported across the State. The wettest period was on the 6th as a cold front crossed southern coastal regions, though highest totals were generally below 10 mm following the passage of the front. Rainfall totals for the month generally ranged from 10-25 mm across southern coasts, decreasing to less than 10 mm in northern parts of the agricultural areas. Almost the whole of the pastoral areas recorded little or no rainfall during the month.
South Australia had a warm April. Both the statewide mean maximum and mean minimum temperatures were above the historical average, with day time temperatures in the highest 10% of records across much of the northern and eastern districts. Overall, April 2016 was the warmest April since 2013.
During the first week of the month, warm days occurred across most districts. Maximum temperatures became milder following the passage of a cold frontal system and the establishment of a ridge of high pressure in the Great Australian Bight, during the second week of the month. Warm northwesterly winds during much of the second half of the month resulted in above average daytime temperatures persisting across large areas of the State, with especially warm periods between the 18th and 21st and from the 25th to the 30th.
Nights were warmer than average for northern districts, but generally mild, tending cooler than average across most other areas of South Australia during the first few days of April. The second half of the month saw nights become warmer than average across most areas of the State. The passage of a low pressure trough on the 27th resulted in much of the southern half of the State reporting minimum temperatures in excess of 6 °C above average.
|Extremes in April 2016|
|Hottest day||36.7 °C at Coober Pedy Airport on the 5th|
|Warmest days on average||32.2 °C at Moomba Airport|
|Coolest days on average||18.9 °C at Mount Lofty|
|Coldest day||13.6 °C at Mount Lofty on the 22nd|
|Coldest night||0.0 °C at Yunta Airstrip on the 24th|
|Coolest nights on average||
8.6 °C at Gluepot Reserve (Gluepot)|
8.6 °C at Padthaway South
|Warmest nights on average||17.4 °C at Moomba Airport|
|Warmest night||22.5 °C at Noarlunga on the 27th|
|Warmest on average overall||24.8 °C at Moomba Airport|
|Coolest on average overall||14.8 °C at Mount Lofty|
|Wettest overall||44.0 mm at Mount Schank (Jethia)|
|Wettest day||22.6 mm at Mount Hope (Fairview) on the 29th|
|Strongest wind gust||93 km/h at Coulta (Coles Point) on the 30th|
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|Summary statistics for April 2016|
|Northwest (district 16)|
|Coober Pedy Airport||28.5||+1.5||36.7||5th||15.5||+1.3||10.6||24th||0||12.9||lowest||0%|
|Ernabella (Pukatja)||28.3||+1.2||35.7||5th||14.5||+1.2||6.3||25th||0||15.9||v low||0%|
|Roxby Downs (Olympic Dam Aerodrome)||28.7||+1.6||35.3||5th||14.1||+1.5||4.6||24th||0||16.6||v low||0%|
|Far North (district 17)|
|Leigh Creek Airport||29.0||+2.8||33.3||19th||14.5||+1.6||8.8||25th||2.4||14.7||average||16%|
|Western Agricultural (district 18)|
|Coulta (Coles Point)||22.6||+0.5||29.8||26th||10.9||-0.9||7.0||13th||27.0||22.3||average||121%|
|North Shields (Port Lincoln AWS)||23.4||+1.3||30.7||1st||12.4||+0.2||6.5||25th||17.4||20.8||average||84%|
|Port Augusta Aero||27.7||+1.1||35.3||5th||13.2||+0.3||4.5||24th||3.0||17.9||low||17%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||26.3||+1.5||34.3||20th||8.6||+0.2||0.7||24th||4.2||21.8||low||19%|
|Lower North (district 21)|
|Clare High School||23.4||+1.9||28.5||19th||9.5||+0.5||4.9||23rd||10.0||39.4||low||25%|
|Port Pirie Aerodrome AWS||26.8||33.0||5th||11.6||5.3||24th||7.6|
|Snowtown (Rayville Park)||25.7||+1.1||31.7||19th||9.7||+0.3||3.3||24th||9.8||25.7||low||38%|
|Yorke Peninsula (district 22A)|
|Kadina AWS||24.8||+1.0||30.4||1st||9.7||-0.7||3.6||24th||10.2||31.5||v low||32%|
|Kangaroo Island (district 22B)|
|Cape Borda||19.9||+0.2||24.7||19th||12.6||+0.2||8.3||4th||13.8||42.9||v low||32%|
|Parndana Cfs AWS||21.0||26.9||19th||10.7||5.5||7th||26.8|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||24.8||+2.2||30.1||26th||12.6||+0.2||7.8||18th||9.6||39.6||low||24%|
|Parafield Airport||25.1||+2.4||30.9||26th||11.1||-0.7||5.2||23rd||7.8||38.9||v low||20%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||25.0||+2.0||31.0||20th||10.3||-0.4||3.8||23rd||9.8||36.6||low||27%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||23.2||+1.7||30.3||26th||12.7||+0.5||7.1||18th||9.2||27.4||low||34%|
|Kuitpo Forest Reserve||21.1||+1.6||27.3||20th||12.0||+0.9||8.5||7th||20.0||58.1||low||34%|
|Mount Crawford AWS||21.1||+2.1||26.8||19th||11.6||+1.2||6.1||23rd||13.0||43.6||low||30%|
|Parawa (Second Valley Forest AWS)||19.3||+1.3||25.8||26th||12.3||+1.2||8.4||7th||30.4||58.9||low||52%|
|Victor Harbor (Encounter Bay)||22.6||+1.3||29.4||26th||9.9||-0.4||4.4||18th||16.0||33.5||low||48%|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||25.5||+1.7||32.9||20th||9.5||+1.0||1.7||18th||3.0||17.4||low||17%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||24.9||+2.0||31.0||20th||9.1||-0.1||1.6||18th||6.2||29.5||v low||21%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||24.3||+1.2||32.5||20th||9.6||+0.5||4.1||23rd||6.4||25.9||v low||25%|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||20.8||+0.9||30.6||20th||11.8||+1.2||7.1||18th||22.8||33.9||low||67%|
|Mount Gambier Aero||21.3||+1.8||31.4||20th||9.9||+1.2||3.0||18th||31.4||54.6||low||58%|
|Padthaway South||23.0||+1.1||32.1||20th||8.6||+0.6||2.5||18th||14.0||25.1||v low||56%|
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 8 am on Monday 2 May 2016. 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
(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.