Brisbane Metro in autumn 2011: A Cooler Autumn

  • Near seasonal average rainfall
  • Cooler than the seasonal means for both the averaged daily mean and maximum temperatures
  • Slightly warmer than the long-term averages for the averaged daily minimum temperatures

Rainfall

Near the seasonal average rainfall was recorded over the Brisbane metropolitan area for this autumn, although above average over the western areas.

The wettest overall was Redlands HRS with 518.2 mm, followed by Redcliffe with 388.4 mm, then Logan City Water Treatment Plant with 384.4 mm.

The driest overall was Amberley AMO with 219.4 mm, followed by Archerfield Airport with 265.0 mm, then Brisbane with 318.6 mm.

The wettest single day was at Redlands HRS with 69.8 mm on 4 Mar, followed by Redcliffe with 65.2 mm on 20 Mar, then Brisbane Aero with 56.6 mm on 4 Mar.

See a map of total rainfall. See a map of rainfall deciles.

Temperature

The averaged daily mean and maximum temperatures for this autumn were slightly, less than 1 C, cooler than the long-term (1961-1990) averaged figures, respectively. The averaged daily minimum temperatures around the Brisbane area were marginally, less than 1 C, warmer than the long-term means.

The warmest on average was Brisbane with 21.5 C, followed by Redcliffe with 21.2 C, then Logan City Water Treatment Plant with 20.9 C.

The coolest on average was Amberley AMO with 19.8 C, followed by Archerfield Airport with 20.5 C, then Brisbane Aero with 20.7 C.

Maximum temperature

The hottest day was at Logan City Water Treatment Plant with 35.5 C on 22 Mar, followed by 35.2 C on the 1 Mar at the same location, then Brisbane with 34.5 C on 22 Mar.

The warmest days on average were at Brisbane with 26.1 C, followed by Amberley AMO with 26.0 C, then Archerfield Airport with 25.8 C.

The coolest days on average were at Redcliffe with 24.9 C, followed by Brisbane Aero with 25.1 C, then Logan City Water Treatment Plant with 25.7 C.

The coldest day was at Archerfield Airport with 17.8 C on 9 May, followed by Amberley AMO with 18.3 C on 9 May, then Redcliffe with 18.4 C on 25 May.

See a map of mean maximum temperatures. See a map of maximum temperature anomalies.

Minimum temperature

The coldest nights all  happened at Amberley AMO with 2.9 C on 27 May, followed 3.2 C on both 13 May and 15 May, then 3.6 C on 28 May.

The coolest nights on average were at Amberley AMO with 13.6 C, followed by Archerfield Airport with 15.3 C, then Logan City Water Treatment Plant with 15.9 C.

The warmest nights on average were at Redcliffe with 17.5 C, followed by Brisbane with 16.8 C, then Brisbane Aero with 16.4 C.

The warmest night was at Redcliffe with 24.2 C on 3 Mar, followed by Redcliffe with 23.9 C on 12 Mar, then with 23.8 C at Brisbane on 3 Mar and at Brisbane Aero on 3 Mar.

See a map of mean minimum temperatures. See a map of minimum temperature anomalies.

Wind

The strongest wind gust all happed at Redcliffe with 74 km/h on 5 Mar, followed by 72 km/h on 6 Mar, then 65 km/h on 5 Apr.

Further information

Media
(03) 9669 4057
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Extremes in autumn 2011
Hottest day 35.5 C at Logan City Water Treatment Plant on 22 Mar
35.2 C at Logan City Water Treatment Plant on 1 Mar
34.5 C at Brisbane on 22 Mar
Warmest days on average 26.1 C at Brisbane
26.0 C at Amberley AMO
25.8 C at Archerfield Airport
Coolest days on average 24.9 C at Redcliffe
25.1 C at Brisbane Aero
25.7 C at Logan City Water Treatment Plant
Coldest day 17.8 C at Archerfield Airport on 9 May
18.3 C at Amberley AMO on 9 May
18.4 C at Redcliffe on 25 May
Coldest night 2.9 C at Amberley AMO on 27 May
3.2 C at Amberley AMO on 13 & 15 May
3.6 C at Amberley AMO on 28 May
Coolest nights on average 13.6 C at Amberley AMO
15.3 C at Archerfield Airport
15.9 C at Logan City Water Treatment Plant
Warmest nights on average 17.5 C at Redcliffe
16.8 C at Brisbane
16.4 C at Brisbane Aero
Warmest night 24.2 C at Redcliffe on 3 Mar
23.9 C at Redcliffe on 12 Mar
23.8 C at Brisbane & Brisbane Aero on 3 Mar
Warmest on average overall 21.5 C at Brisbane
21.2 C at Redcliffe
20.9 C at Logan City Water Treatment Plant
Coolest on average overall 19.8 C at Amberley AMO
20.5 C at Archerfield Airport
20.7 C at Brisbane Aero
Wettest overall 518.2 mm at Redlands HRS
388.4 mm at Redcliffe
384.4 mm at Logan City Water Treatment Plant
Driest overall 219.4 mm at Amberley AMO
265.0 mm at Archerfield Airport
318.6 mm at Brisbane
Wettest day 69.8 mm at Redlands HRS on 4 Mar
65.2 mm at Redcliffe on 20 Mar
56.6 mm at Brisbane Aero on 4 Mar
Highest wind gust 74 km/h at Redcliffe on 5 Mar
72 km/h at Redcliffe on 6 Mar
65 km/h at Redcliffe on 5 Apr




Summary statistics for autumn 2011
Maximum temperatures
for autumn
(C)
Minimum temperatures
for autumn
(C)
Rainfall
for autumn
(millimetres)
Mean for
autumn
2011
Diff
from
average
Highest for
autumn
2011
Mean for
autumn
2011
Diff
from
average
Lowest for
autumn
2011
Total for
autumn
2011
Average
for
autumn
Rank of
autumn
2011
Fraction of
autumn
average
Moreton South Coast (district 40)
Amberley AMO 26.0 -0.9 34.4 22 Mar 13.6 -0.3 2.9 27 May 219.4 191.7 average 114%
Archerfield Airport 25.8 -0.6 34.4 22 Mar 15.3 +0.2 7.1 13 May 265.0 279.1 average 95%
Brisbane 26.1 -0.8 34.5 22 Mar 16.8 -0.1 7.9 13 May 318.6 218.3 high 146%
Brisbane Aero 25.1 -0.8 32.3 23 Mar 16.4 +0.2 7.4 13 May 327.6 271.8 average 121%
Logan City Water Treatment Plant 25.7 -0.5 35.5 22 Mar 15.9 +0.2 6.1 14 May 384.4 308.2 average 125%
Redcliffe 24.9   32.3 23 Mar 17.5   9.6 13 May 388.4

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 10 am on Wednesday 1 June 2011. 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.

Further information

Media
(03) 9669 4057
Enquiries