Brisbane Metro in September 2010: Wetter than average

  • Above average September rainfall
  • Cool day time temperatures
  • Warmer than average night time temperatures

Rainfall

The highest daily rainfall in the Brisbane Metro area during September was 35.0 mm at Redcliffe on the 29th, associated with thunderstorm activity.  The next highest falls occurred on the 6th, when 33.8 mm was recorded at Amberley AMO and 32.0 mm was recorded at Brisbane Aero.  A thundery rain band extended into south eastern districts on the evening of the 5th and morning of the 6th of September, before clearing off the east coast by the afternoon.  

An upper level trough located over South Australia and New South Wales maintained cloud and rain areas over eastern Queensland, and a surface trough near the east coast produced locally heavy rain and storms on the 20th.  Thunderstorms also occurred over the Brisbane Metropolitan area on the afternoon of the 28th, with some locally heavy falls.

The highest monthly rainfall total  was 107.0 mm at Amberley AMO, followed by 103.6 mm at Brisbane, followed by 97.4 mm at Redcliffe.

Amberley AMO had its highest total September rainfall for at least 20 years.

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

Temperature

Mean maximum temperatures were below the long term average for every station in the Brisbane Metropolitan area, due to cloudy conditions and rain periods during the month.  

Mean minimum temperature were well above average, by up to 3.5 °C above the long term mean, which was also the result of persistent cloudy conditions in the area.

Maximum temperature

The hottest day was 29.8 °C at Amberley AMO on the 29th, followed by 28.6 °C at Amberley AMO on the 3rd, followed by 28.4 °C at Brisbane on the 2nd.

The warmest days on average were 24.9 °C at Amberley AMO, followed by 24.8 °C at Brisbane, followed by 24.6 °C at both Archerfield Airport and Logan City Water Treatment Plant.

The coolest days on average were 23.4 °C at Redcliffe, followed by 23.5 °C at Brisbane Aero.

The coldest day was 18.7 °C at Amberley AMO on the 20th, followed by 19.1 °C at Redcliffe on the 20th, followed by 19.5 °C at Archerfield Airport on the 20th.

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

Minimum temperature

Amberley had its highest September mean daily minimum temperature on record

The coldest night was 6.2 °C at Amberley AMO on the 2nd, followed by 6.3 °C at Amberley AMO on the 8th, followed by 6.6 °C at Amberley AMO on the 7th.

The coolest nights on average were 13.0 °C at Amberley AMO, followed by 14.3 °C at Archerfield Airport, followed by 14.8 °C at Logan City Water Treatment Plant.

The warmest nights on average were 15.8 °C at Redcliffe, followed by 15.5 °C at Brisbane, followed by 14.9 °C at Brisbane Aero.

The warmest night was 20.4 °C at Brisbane on the 28th, followed by 20.2 °C at Logan City Water Treatment Plant on the 28th, followed by 19.9 °C at Redcliffe on the 5th.

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

Wind

The strongest wind gust was 70 km/h at Brisbane Aero on the 15th, followed by 69 km/h at Redcliffe on the 28th, followed by 61 km/h at Archerfield Airport on the 15th.

Further information

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Extremes in September 2010
Hottest day 29.8 °C at Amberley AMO on the 29th
28.6 °C at Amberley AMO on the 3rd
28.4 °C at Brisbane on the 2nd
Warmest days on average 24.9 °C at Amberley AMO
24.8 °C at Brisbane
24.6 °C at Archerfield Airport
24.6 °C at Logan City Water Treatment Plant
Coolest days on average 23.4 °C at Redcliffe
23.5 °C at Brisbane Aero
24.6 °C at Archerfield Airport
24.6 °C at Logan City Water Treatment Plant
Coldest day 18.7 °C at Amberley AMO on the 20th
19.1 °C at Redcliffe on the 20th
19.5 °C at Archerfield Airport on the 20th
Coldest night 6.2 °C at Amberley AMO on the 2nd
6.3 °C at Amberley AMO on the 8th
6.6 °C at Amberley AMO on the 7th
Coolest nights on average 13.0 °C at Amberley AMO
14.3 °C at Archerfield Airport
14.8 °C at Logan City Water Treatment Plant
Warmest nights on average 15.8 °C at Redcliffe
15.5 °C at Brisbane
14.9 °C at Brisbane Aero
Warmest night 20.4 °C at Brisbane on the 28th
20.2 °C at Logan City Water Treatment Plant on the 28th
19.9 °C at Redcliffe on the 5th
Wettest overall 107.0 mm at Amberley AMO
103.6 mm at Brisbane
97.4 mm at Redcliffe
Wettest day 35.0 mm at Redcliffe on the 29th
33.8 mm at Amberley AMO on the 6th
32.0 mm at Brisbane Aero on the 6th
Highest wind gust 70 km/h at Brisbane Aero on the 15th
69 km/h at Redcliffe on the 28th
61 km/h at Archerfield Airport on the 15th

Highest total September rainfall for at least 20 years
Total rainfall
for September 2010 (mm)
Most recent higher
for September
Years since
higher
Average for
September
Amberley AMO 107.0 119.9 in 1946 64 34.1



Record highest September mean daily minimum temperature
Mean daily minimum
temperature
for September 2010 (°C)
Previous highest
for September
Years of
record
Average for
September
Amberley AMO 13.0 12.5 in 1973 69 9.5



Summary statistics for September 2010
Maximum temperatures
for September
(°C)
Minimum temperatures
for September
(°C)
Rainfall
for September
(millimetres)
Mean for
September
2010
Diff
from
average
Highest for
September
2010
Mean for
September
2010
Diff
from
average
Lowest for
September
2010
Total for
September
2010
Average
for
September
Rank of
September
2010
Fraction of
September
average
Moreton South Coast (district 40)
Amberley AMO 24.9 -0.6 29.8 29th 13.0 +3.5 6.2 2nd 107.0 34.1 v high 314%
Archerfield Airport 24.6 -0.5 28.1 29th 14.3 +3.4 9.3 1st 70.0 36.2 high 193%
Brisbane 24.8 -1.0 28.4 2nd 15.5 +1.8 11.6 8th 103.6 33.3 v high 311%
Brisbane Aero 23.5 -0.7 26.3 28th 14.9 +2.2 9.9 2nd 78.4 35.4 high 221%
Logan City Water Treatment Plant 24.6 -0.5 28.2 2nd 14.8 +2.4 10.6 1st 68.2 47.5 high 144%
Redcliffe* 23.4 -0.6 26.2 2nd 15.8 +1.9 11.4 7th 97.4 30.2 v high 323%

Notes

A Monthly 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 Friday 1 October 2010. 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 data for September 2010 at this site has been compared to another nearby site with a longer record.

Further information

Media
(03) 9669 4057
Enquiries