Brisbane in summer 2014-15: Above average rainfall, warm nights

Rainfall was above average across the Brisbane metropolitan area during summer, with all the sites recording more than their historical mean. During December, thunderstorm activity generated the majority of the monthly rainfall. In January, heavy rainfall was recorded on the 23rd and 24th  as a surface trough and upper level disturbance affected the southeast, while in February, the remnants of ex-tropical cyclone Marcia affected the southeast coast between the 20th and the 22nd.

Both maximum and minimum temperatures for summer were above the historical average at all metropolitan sites, with the hottest day occurring on 17 December at Amberley with 39.6 C.  Relatively cool overnight conditions preceded the hottest summer day, with the coolest summer nights recorded on 15 and 16 December. 

  • Wetter than average summer
  • Above average daytime temperatures
  • Warmer than average overnight temperatures

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Extremes in summer 2014-15
Hottest day 39.6 C at Amberley AMO on 17 Dec 2014
Warmest days on average 31.1 C at Amberley AMO
Coolest days on average 28.7 C at Redcliffe
Coldest day 22.4 C at Logan City Water Treatment Plant on 20 Feb 2015
Coldest night 13.9 C at Amberley AMO on 15 Dec 2014
Coolest nights on average 19.6 C at Amberley AMO
Warmest nights on average 22.0 C at Redcliffe
Warmest night 26.5 C at Brisbane on 19 Jan 2015
Warmest on average overall 25.7 C at Brisbane
Coolest on average overall 25.1 C at Brisbane Aero and at Logan City Water Treatment Plant
Wettest overall 908.2 mm at Hilltop Gardens
Driest overall416.8 mm at Amberley 
Wettest day 169.0 mm at Hilltop Gardens on 22 Feb 2015
Strongest wind gust 93 km/h at Archerfield Airport on 18 Dec 2014




Summary statistics for summer 2014-15
Maximum temperatures
(C)
Minimum temperatures
(C)
Rainfall
(millimetres)
Mean for
summer
2014-15
Diff
from
average
Highest for
summer
2014-15
Mean for
summer
2014-15
Diff
from
average
Lowest for
summer
2014-15
Total for
summer
2014-15
Average
for
summer
Rank of
summer
2014-15
Fraction of
summer
average
Amberley AMO 31.1 +0.3 39.6 17 Dec 2014 19.6 +0.4 13.9 15 Dec 2014 416.8 359.0 high 116%
Archerfield Airport 30.3 +0.5 37.4 18 Jan 2015 20.7 +0.9 15.5 15 Dec 2014 549.4 418.0 high 131%
Brisbane 29.9 +0.1 36.7 25 Jan 2015 21.5 +0.5 17.5 16 Dec 2014 721.6 445.9 high 162%
Brisbane Aero 28.8 +0.1 36.3 15 Jan 2015 21.4 +0.6 16.8 15 Dec 2014 602.4 414.1 high 145%
Logan City Water Treatment Plant 29.5 +0.2 38.5 17 Dec 2014 20.8 +0.8 15.4 4 Feb 2015 564.7 412.5 high 137%
Redcliffe 28.7 +0.1 36.6 15 Jan 2015 22.0 +0.4 17.1 15 Dec 2014 619.0 393.0 high 157%

Notes

A Seasonal Climate Summary is prepared to list 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, usually published in the fourth week of the month.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 3 pm on Sunday 1 March 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