Brisbane Metro in summer 2013-14: Dry summer, warm days

  • Five out of six metropolitan stations recorded less than 50% of their summer rainfall
  • Warm days, within a degree of the average maximum temperature
  • Average days, less than one degree of the long term minimum temperature

Rainfall

Five of the metropolitan sites recorded less than 50% of the summer rainfall. The highest summer rainfall recorded at the metropolitan sites was at Brisbane with 178.8 mm, but even this was only 42% of the summer average.

Archerfield had its lowest summer rainfall since 1951 with 178.4 mm

The wettest single day was on 24 January, when Archerfield Airport recorded 104.8 mm, Brisbane 94.0 mm and Amberley 93.6 mm -.due to thunderstorm activity in the area on 23 January.

Temperature

Northwest winds extended to near the coast of southeast Queensland on 4 January, bringing extreme heat to metropolitan Brisbane and surrounding regions.

The warmest on average was Brisbane with 25.5 C and the coolest on average was Brisbane Aero with 24.7 C.

Maximum temperature

Daytime maximum temperatures were above average at most sites in the metropolitan area, typically by about half a degree. The hottest day was on 4 January when Amberley reached 43.9 C and Archerfield Airport reached 43.5 C. Several very hot days occurred in the metropolitan sites in January, and some sites had their highest summer temperature on record.

The warmest days on average were at Amberley with 31.5 C and the coolest days on average were at Redcliffe with 28.4 C.

The coldest day was at Redcliffe with 24.3 C on 1 Dec 2013

Minimum temperature

Overnight minimum temperatures were below average at most sites, although mostly by only a fraction of a degree. The coldest night was at Amberley with 10.4 C on 7 December, whilst the warmest night was at Redcliffe with 26.5 C on 4 January  2014.

The coolest nights on average were at Amberley with 18.1 C and the warmest nights on average were at Redcliffe with 21.5 C.

Wind

The strongest wind gust was 70km/.h at Brisbane Aero 3 January and at Archerfield Airport on 17 January.

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Extremes in summer 2013-14
Hottest day 43.9 C at Amberley on 4 Jan 2014
Warmest days on average 31.5 C at Amberley
Coolest days on average 28.4 C at Redcliffe
Coldest day 24.3 C at Redcliffe on 1 Dec 2013
Coldest night 10.4 C at Amberley on 7 Dec 2013
Coolest nights on average 18.1 C at Amberley
Warmest nights on average 21.5 C at Redcliffe
Warmest night 26.5 C at Redcliffe on 4 Jan 2014
Warmest on average overall 25.5 C at Brisbane
Coolest on average overall 24.7 C at Brisbane Aero
Wettest overall 178.8 mm at Brisbane
Wettest day 104.8 mm at Archerfield Airport on 24 Jan 2014
Highest wind gust 70 km/h at Brisbane Aero on 3 Jan 2014 and at Archerfield Airport on 17 Jan 2014

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Lowest total summer rainfall for at least 20 years
Total rainfall
for summer 2013-14 (mm)
Most recent summer
at least this dry
Years since
drier
Average for
summer
Archerfield Airport 178.4 103.3 in 1951* 59 416.4

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




Record highest summer temperature
Highest temperature
in summer 2013-14 (C)
Previous warmest
for summer
Years of
record
Average for
summer
Archerfield Airport 43.5 on 4 Jan 2014 43.3 on 26 Jan 1940 39 29.8
Logan City Water Treatment Plant 41.9 on 4 Jan 2014 41.0 on 21 Feb 2004 22 29.3



Summary statistics for summer 2013-14
Maximum temperatures
for summer
(C)
Minimum temperatures
for summer
(C)
Rainfall
for summer
(millimetres)
Mean for
summer
2013-14
Diff
from
average
Highest for
summer
2013-14
Mean for
summer
2013-14
Diff
from
average
Lowest for
summer
2013-14
Total for
summer
2013-14
Average
for
summer
Rank of
summer
2013-14
Fraction of
summer
average
Moreton South Coast (district 40)
Amberley AMO 31.5 +0.7 43.9 4 Jan 2014 18.1 -1.1 10.4 7 Dec 2013 168.2 361.6 v low 47%
Archerfield Airport 30.7 +0.9 43.5 4 Jan 2014 19.7 -0.1 12.0 7 Dec 2013 178.4 416.4 v low 43%
Brisbane 30.2 +0.4 38.7 4 Jan 2014 20.8 -0.2 15.0 7 Dec 2013 178.8 426.2 v low 42%
Brisbane Aero 28.7 0.0 34.3 4 Jan 2014 20.7 -0.1 14.2 2 Dec 2013 150.4 403.7 v low 37%
Logan City Water Treatment Plant 29.7 +0.4 41.9 4 Jan 2014 20.2 +0.2 13.5 7 Dec 2013 162.3 403.9 v low 40%
Redcliffe 28.4 -0.3 34.4 5 Dec 2013 21.5 -0.1 15.7 3 Dec 2013 134.2

Notes

A Seasonal Climate Summary is prepared to list the main features of the weather in Brisbane Metro 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.

This statement has been prepared based on information available at 1 pm on Monday 3 March 2014. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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 9 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 being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.

Further information

Media
(03) 9669 4057
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