Greater Adelaide in autumn 2024

Rainfall

  • Rainfall in autumn was very much below average across Adelaide and the Hills.
  • Rainfall totals ranged from 19% of average at Adelaide (West Terrace / ngayirdapira) to 34% at Mount Lofty.
  • March, April and May were each drier than average across Greater Adelaide.
  • Adelaide (West Terrace / ngayirdapira) recorded an autumn rainfall total of 25.4 mm, which was the driest autumn on record at Adelaide's primary site on West Terrace, but Kent Town recorded 23.0 mm in autumn 2005 (before West Terrace / ngayirdapira re-opened in 2017).

Temperature

  • Mean maximum temperatures for autumn were above average at all sites across Adelaide and the Hills.
  • Mean maximum temperatures for autumn ranged from 0.7 °C above average at Noarlunga and Kuitpo Forest Reserve to 2.8 °C above average at Mount Lofty.
  • Mount Lofty had its highest autumn mean daily maximum temperature on record.
  • Mean minimum temperatures for autumn were close to average or below average at all sites across Adelaide and the Hills.
  • Mean minimum temperatures for autumn ranged from 1.7 °C below average at Parafield Airport to 0.2 °C above average at Mount Barker.
  • Three sites had their lowest autumn mean daily minimum temperature for at least 20 years.
  • Both days and nights were warmer than average at all sites across Greater Adelaide during March, but were both cooler than average during April, while in May, days were generally warmer than average and nights cooler.

Adelaide (West Terrace / ngayirdapira)

  • Total rainfall for Adelaide (West Terrace / ngayirdapira) was 25.4 mm, which is 19% of the long-term average of 134.8 mm.
  • The mean daily maximum temperature for Adelaide (West Terrace / ngayirdapira) was 23.9 °C, which is 1.6 °C above the long-term average of 22.3 °C.
  • The warmest day was 39.9 °C on 9 March, and the coolest day was on 19 May when the temperature reached 16.0 °C.
  • The mean daily minimum temperature for Adelaide (West Terrace / ngayirdapira) was 12.1 °C, which is 0.7 °C below the long-term average of 12.8 °C.
  • The coldest morning was 3.7 °C on 22 May, and the warmest morning was on 10 March when the minimum temperature was 26.6 °C.

Extremes in autumn 2024
Hottest day 42.1 °C at Edinburgh RAAF on 9 Mar
Warmest days on average 24.8 °C at Parafield Airport
Coolest days on average 19.0 °C at Mount Lofty
Coldest day 9.4 °C at Mount Lofty on 21 May
Coldest night 0.3 °C at Edinburgh RAAF on 22 May
Coolest nights on average 8.8 °C at Mount Barker
Warmest nights on average 12.9 °C at Noarlunga
Warmest night 28.6 °C at Noarlunga on 10 Mar
Warmest on average overall 18.0 °C at Adelaide (West Terrace / ngayirdapira)
Coolest on average overall 14.3 °C at Mount Lofty
Wettest overall 73.8 mm at Mount Lofty
Wettest day 21.0 mm at Mount Bold Reservoir on 31 May
Strongest wind gust 80 km/h at Kuitpo Forest Reserve on 30 May

Record highest autumn mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Mount Lofty 19.0 18.7 in 2018 23 16.2



Lowest autumn mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
autumn
Edinburgh RAAF 10.9 10.8 in 2001 11.9
Parafield Airport 10.2 10.0 in 2001 11.9
Adelaide Airport 11.7 11.5 in 2004 12.1

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




Summary statistics for autumn 2024
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
autumn
2024
Diff
from
average
Highest for
autumn
2024
Mean for
autumn
2024
Diff
from
average
Lowest for
autumn
2024
Total for
autumn
2024
Average
for
autumn
Rank of
autumn
2024
Fraction of
autumn
average
Adelaide (West Terrace / ngayirdapira) 23.9 +1.6 39.9 9 Mar 12.1 -0.7 3.7 22 May 25.4 134.8 lowest 19%
Adelaide Airport 22.9 +0.8 38.4 9 Mar 11.7 -0.4 3.3 22 May 24.6 107.7 v low 23%
Edinburgh RAAF 24.3 +1.2 42.1 9 Mar 10.9 -1.0 0.3 22 May 25.2 99.2 v low 25%
Kuitpo Forest Reserve 20.4 +0.7 38.0 10 Mar 10.9 -0.3 5.2 23 May 52.6 169.8 v low 31%
Mount Barker 22.3 +1.7 38.4 9 Mar 8.8 +0.2 1.0 23 May 51.2 174.8 v low 29%
Mount Crawford AWS 20.7 +1.5 37.1 9 Mar 10.3 -0.2 4.1 23 May 28.2 137.5 v low 21%
Mount Lofty 19.0 +2.8 34.9 9 Mar 9.6 0.0 3.0 22 May 73.8 217.2 v low 34%
Noarlunga 22.8 +0.7 39.5 9 Mar 12.9 -0.7 6.0 19 May 34.2 104.5 v low 33%
Parafield Airport 24.8 +1.9 41.0 10 Mar 10.2 -1.7 0.5 22 May 24.2 106.6 v low 23%

Notes

The Seasonal climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Adelaide using the most timely and accurate information available on the date of publication; it will generally not be updated.

This summary includes data from observing sites in or near the Greater Adelaide “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to represent a socio-economic definition of each capital city. This means the greater capital city boundary includes people who regularly socialise, shop or work within the capital city, but live in the small towns and rural areas surrounding the capital city. It does not define the built up edge of the capital city.

This statement has been prepared based on information available at 9 am on Sunday 2 June 2024. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.


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