Brisbane in winter 2015: Below-average seasonal rainfall

Winter in Brisbane was drier-than-usual at all metropolitan sites. Overall, daytime temperatures were slightly cooler-than-average at bayside and city locations, and slightly warmer-than-average in western metropolitan sites. Overnight temperatures were slightly warmer-than-average at all  metropolitan sites.

  • Below-average winter rainfall for metropolitan sites
  • Above-average maximum temperatures in western suburbs but below-average at bayside locations
  • Slightly warmer-than-average overnight temperatures at most locations

Winter rainfall totals at metropolitan sites ranged between 50 mm and 95 mm, and below the long-term average. Most locations recorded around half their winter rainfall. Rainfall in June was near- to below-average for city locations, followed by a rather dry July, and average rainfall in August.

Mean maximum temperatures were slightly warmer-than-average in western metropolitan locations, and cooler-than-average at bayside and city locations. Some cold days were experienced throughout winter, especially in the middle of July, when a burst of cold southerly air affected southern Queensland. 

Mean minimum temperatures were warmer-than-average at all metropolitan locations. Particularly cold nights were recorded in the middle of July when overnight temperatures dropped significantly on the 17th and 18th. The coldest winter night was at Amberley with -1.8 C on 18 July.

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Extremes in winter 2015
Hottest day 29.3 C at Archerfield Airport on 25 Aug
Warmest days on average 22.3 C at Amberley AMO and at Archerfield Airport
Coolest days on average 21.0 C at Redcliffe
Coldest day 15.2 C at Amberley AMO on 17 Jul
Coldest night -1.8 C at Amberley AMO on 18 Jul
Coolest nights on average 6.3 C at Amberley AMO
Warmest nights on average 11.9 C at Redcliffe
Warmest night 18.2 C at Brisbane on 1 Jun
Warmest on average overall 16.8 C at Brisbane
Coolest on average overall 14.3 C at Amberley AMO
Wettest overall 132.6 mm at Mt Nebo Post Office
Driest overall 50.2 mm at Archerfield Airport
Wettest day 23.0 mm at Mt Nebo Post Office on 30 Aug
Strongest wind gust 83 km/h at Brisbane Aero on 12 Aug




Summary statistics for winter 2015
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean for
winter
2015
Diff
from
average
Highest for
winter
2015
Mean for
winter
2015
Diff
from
average
Lowest for
winter
2015
Total for
winter
2015
Average
for
winter
Rank of
winter
2015
Fraction of
winter
average
Amberley AMO 22.3 +0.5 28.4 26 Aug 6.3 +0.1 -1.8 18 Jul 56.8 112.7 low 50%
Archerfield Airport 22.3 +0.6 29.3 25 Aug 9.3 +1.0 2.4 15 Jul 50.2 151.2 v low 33%
Brisbane 22.1 -0.2 29.1 25 Aug 11.4 +0.6 5.4 15 Jul 71.4 121.0 low 59%
Brisbane Aero 21.3 0.0 26.7 25 Aug 10.5 +0.7 4.5 15 Jul 91.2 138.3 low 66%
Logan City Water Treatment Plant 21.7 -0.2 29.0 26 Aug 10.1 +0.7 3.9 5 Jun 95.9 152.3 low 63%
Redcliffe 21.0 -0.1 26.0 25 Aug 11.9 +0.4 6.2 15 Jul 85.2 151.7 v low 56%

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 Tuesday 1 September 2015. 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
Enquiries