Greater Brisbane in autumn 2023

Rainfall

  • Rainfall totals for autumn ranged from 150 to 280 mm for coastal and inland sites, and more than 330 mm at Point Lookout on North Stradbroke Island.
  • Locations in Greater Brisbane reported at least 50% of their autumn average rainfall, with some sites reporting close to their average rainfall, including Amberley in western Brisbane.

Temperature

Brisbane

  • Total rainfall for Brisbane was 192.4 mm, which is 72% of the long-term average of 268.7 mm.
  • The mean daily maximum temperature for Brisbane was 27.4 °C, which is 0.5 °C above the long-term average of 26.9 °C.
  • The warmest day was 36.6 °C on 17 March, and the coolest day was on 16 May when the temperature reached 19.9 °C.
  • The mean daily minimum temperature for Brisbane was 16.7 °C, which is 0.5 °C below the long-term average of 17.2 °C.
  • The coldest morning was 7.3 °C on 21 May, and the warmest morning was on 8 March when the minimum temperature was 24.3 °C.

Extremes in autumn 2023
Hottest day 38.4 °C at Beaudesert Drumley Street on 17 Mar
Warmest days on average 27.8 °C at Amberley AMO
Coolest days on average 24.9 °C at Cape Moreton Lighthouse
Coldest day 18.1 °C at Redland (Alexandra Hills) on 16 May
Coldest night -1.6 °C at Canungra (Defence) on 9 May
Coolest nights on average 11.3 °C at Canungra (Defence)
Warmest nights on average 19.1 °C at Cape Moreton Lighthouse
Warmest night 25.3 °C at Point Lookout on 9 Mar
Warmest on average overall 22.7 °C at Point Lookout
Coolest on average overall 18.9 °C at Canungra (Defence)
Wettest overall 333.6 mm at Point Lookout
Wettest day 95.0 mm at Rocky Point Sugar Mill on 16 May
Strongest wind gust 91 km/h at Cape Moreton Lighthouse on 24 Apr

Record highest autumn daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Logan City Water Treatment Plant 25.0 on 17 Mar 24.9 on 21 Mar 2015 31 16.0



Summary statistics for autumn 2023

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
autumn
2023
Diff
from
average
Highest for
autumn
2023
Mean for
autumn
2023
Diff
from
average
Lowest for
autumn
2023
Total for
autumn
2023
Average
for
autumn
Rank of
autumn
2023
Fraction of
autumn
average
Amberley AMO 27.8 +0.9 37.5 17 Mar 12.1 -1.8 -1.5 9 May 195.0 196.0 average 99%
Archerfield Airport 27.3 +0.8 36.9 17 Mar 14.9 -0.3 4.5 30 May 234.2 278.8 average 84%
Beaudesert Drumley Street 27.5 +0.7 38.4 17 Mar 12.9 -1.0 0.3 21 May 183.8 245.2 average 75%
Beerburrum Forest Station 26.7 +0.3 35.1 17 Mar 15.4 -0.4 7.1 22 May 204.4 407.4 low 50%
Brisbane 27.4 +0.5 36.6 17 Mar 16.7 -0.5 7.3 21 May 192.4 268.7 average 72%
Brisbane Aero 26.3 +0.4 32.8 17 Mar 15.9 -0.6 4.4 9 May 154.2 282.9 low 55%
Canungra (Defence) 26.5   37.6 17 Mar 11.3   -1.6 9 May



Cape Moreton Lighthouse 24.9 +0.8 30.2 11 Mar 19.1 +0.1 11.2 9 May 273.6 483.7 low 57%
Greenbank (Defence) 27.7   38.3 17 Mar 12.6   -1.0 9 May 214.2


Point Lookout 26.5 +0.2 33.3 17 Mar 19.0 -0.4 10.1 27 May 333.6 471.1 low 71%
Redcliffe 26.1 +0.3 32.3 17 Mar 17.0 -0.7 7.5 9 May 263.0 316.3 average 83%
Redland (Alexandra Hills) 26.0   33.7 17 Mar 15.9   6.9 29 May 179.6


University of Queensland Gatton 27.5 +0.7 37.8 17 Mar 12.8 -0.9 0.7 30 May 155.0 171.8 average 90%

Notes

The Seasonal climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Brisbane 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 Brisbane “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 7 am on Monday 5 June 2023. 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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