Brisbane in autumn 2016: Very warms days; below average seasonal rainfall

Autumn rainfall was below average in the Brisbane metropolitan area. Both mean maximum and mean minimum temperatures were above average.

  • Autumn daytime temperatures warmest on record at some locations
  • Overnight temperatures above average for autumn
  • Below average autumn rainfall

Rainfall was below average for autumn in the metropolitan area. At the beginning of the season, near-average rainfall totals were recorded across Brisbane in March. Showers and thunderstorms in March produced the bulk of the autumn rainfall totals in the metropolitan area. April rainfall in the Brisbane area was well below average, with Brisbane Aero reporting its lowest April rainfall on record. There were very few days of rain in April around Brisbane, with only small totals accumulating in the middle, and at the end of the month. May was another dry month, resulting in below average autumn rainfall in the Brisbane metropolitan area.

Both the mean maximum and mean minimum temperatures were above average for autumn in Brisbane.
Mean maximum temperatures were the warmest on record for several locations in the metropolitan area in autumn, including Brisbane City. Daytime temperatures during March were around1 C above average, with particularly warm days occurring on 19 March, including the hottest autumn day.  Mean maximum temperatures in the Brisbane area during April were more than 1 C warmer than average, with the first half of April particularly warm.  May daytime temperatures around Brisbane were more than 2 C above the long-term average. 

Mean minimum temperatures were above average in autumn. Overnight temperatures during March were mostly above average in the first three weeks of the month, with cooler nights occurring during the last week of March. In April, mean minimum temperatures were above average during the first half of the month, with milder nights at some locations mid-April. Warmth returned to the Brisbane area in the last part of April. May had particularly warm nights up to the 11th, before a cool spell saw overnight temperatures drop to well below average for a few days mid-month. Cooler than average overnight temperatures in the last part of May brought a cool close to autumn. Overall, autumn overnight temperatures were more than 1 C above average at most locations.

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Extremes in autumn 2016
Hottest day 34.9 C at Amberley AMO on 19 Mar
Warmest days on average 29.3 C at Amberley AMO
Coolest days on average 27.0 C at Redcliffe
Coldest day 20.8 C at Redcliffe on 29 May
Coldest night 0.4 C at Amberley AMO on 30 May
Coolest nights on average 14.2 C at Amberley AMO
Warmest nights on average 18.7 C at Redcliffe
Warmest night 24.6 C at Redcliffe on 3 Mar
Warmest on average overall 23.3 C at Brisbane
Coolest on average overall 21.7 C at Amberley AMO
Wettest overall 215.6 mm at Hilltop Gardens
Driest overall 88.0 mm at Amberley AMO
Wettest day 34.2 mm at Boondall on 19 Mar
Strongest wind gust 85 km/h at Amberley AMO on 22 Mar

Record lowest autumn total rainfall
New record
(mm)
Old
record
Years of
record
Average for
autumn
Logan City Water Treatment Plant 107.3 128.4 in 2007 24 307.4



Record highest autumn mean daily maximum temperature
New record
(C)
Old
record
Years of
record
Average for
autumn
Brisbane City^28.628.4in 200711525.8
Archerfield Airport 28.9 28.8 in 2007 40 26.4
Logan City Water Treatment Plant 28.1 27.4 in 2007 23 26.2
Brisbane Aero 27.2 27.0 in 2007 20 25.8
^Record is from comparing both the new (open) and old (closed) stations in Brisbane City

Record highest autumn mean daily minimum temperature
New record
(C)
Old
record
Years of
record
Average for
autumn
Brisbane Aero 17.4 17.2 in 2007 20 16.3

Highest autumn mean daily minimum temperature for at least 20 years
Observed
(C)
Most recent
higher
Average for
autumn
Archerfield Airport 16.3 16.4 in 1990 15.1



Record highest autumn mean temperature
New record
(C)
Old
record
Years of
record
Average for
autumn
Archerfield Airport 22.6 22.4 in 2007 40 20.8
Logan City Water Treatment Plant 22.5 22.1 in 2014 23 21.0
Brisbane Aero 22.3 22.1 in 2007 20 21.0



Summary statistics for autumn 2016
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean for
autumn
2016
Diff
from
average
Highest for
autumn
2016
Mean for
autumn
2016
Diff
from
average
Lowest for
autumn
2016
Total for
autumn
2016
Average
for
autumn
Rank of
autumn
2016
Fraction of
autumn
average
Amberley AMO 29.3 +2.4 34.9 19 Mar 14.2 +0.3 0.4 30 May 88.0 192.4 low 46%
Archerfield Airport 28.9 +2.5 33.1 19 Mar 16.3 +1.2 4.9 26 May 97.8 277.1 v low 35%
Brisbane 28.6 +1.8 33.5 19 Mar 18.1 +1.2 9.3 12 May 157.8 245.0 average 64%
Brisbane Aero 27.2 +1.4 30.7 19 Mar 17.4 +1.1 7.0 30 May 156.3 282.1 low 55%
Logan City Water Treatment Plant 28.1 +1.9 32.4 30 Mar 17.0 +1.2 6.4 30 May 107.3 307.4 lowest 35%
Redcliffe 27.0 +1.4 30.2 11 Apr 18.7 +1.3 9.5 30 May 152.8 297.1 v low 51%

Notes

The Seasonal climate summary lists the main features of the weather in Brisbane 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 9 am on Wednesday 1 June 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 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.

The ACORN-SAT dataset is used for temperature area averages.

Further information

Media
(03) 9669 4057
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