Brisbane Metro in August 2012: Dry, warm days, cold nights

  • There was a record dry spell of 41 consecutive days of zero rainfall for Brisbane (July & August only), with the previous being 38 days in 1991 
  • Redlands and Logan City both received record low rainfall
  • A record high daily minimum temperature was also measured at Redlands

Rainfall

The wettest overall was Amberley AMO with 4.8 mm, followed by Logan City Water Treatment Plant with 1.4 mm, followed by Redcliffe with 0.4 mm. Some sites had their lowest total August rainfall on record.

The wettest single day was at Amberley AMO with 4.4 mm on the 31st, followed by Amberley AMO with 0.4 mm on the 18th, followed by Redcliffe with 0.4 mm on the 31st, followed by Brisbane Aero with 0.2 mm on the 19th, followed by Logan City Water Treatment Plant with 0.2 mm on the 24th, followed by Archerfield Airport with 0.2 mm on the 31st, followed by Brisbane with 0.2 mm on the 31st.

The previous record dry spell for July & August was actually the start of a 64-day dry-spell which extended into late September, 25 July - 26 September, and is Brisbane's record for any months (the driest July & August was 5.1 mm in 1841);

Temperature

The warmest on average was Brisbane with 16.5 C, followed by Redcliffe with 16.1 C, followed by Logan City Water Treatment Plant with 15.5 C.

The coolest on average was Amberley AMO with 13.7 C, followed by Archerfield Airport with 15.2 C, followed by Brisbane Aero with 15.4 C.

Maximum temperature

The hottest day was at Amberley AMO with 28.6 C on the 30th, followed by Amberley AMO with 28.4 C on the 24th, followed by Amberley AMO with 28.3 C on the 23rd, followed by Archerfield Airport with 28.3 C on the 24th.

The warmest days on average were at Amberley AMO with 24.0 C, followed by Archerfield Airport with 23.6 C, followed by Brisbane with 23.3 C.

The coolest days on average were at Redcliffe with 22.1 C, followed by Brisbane Aero with 22.3 C, followed by Logan City Water Treatment Plant with 23.0 C.

The coldest day was at Redcliffe with 18.4 C on the 10th, followed by Redcliffe with 19.0 C on the 1st, followed by Logan City Water Treatment Plant with 19.0 C on the 10th, followed by Brisbane with 19.3 C on the 10th.

Minimum temperature

The coldest night was at Amberley AMO with -1.6 C on the 4th, followed by Amberley AMO with -1.4 C on the 5th, followed by Amberley AMO with -1.4 C on the 8th, followed by Amberley AMO with -1.2 C on the 3rd.

The coolest nights on average were at Amberley AMO with 3.4 C, followed by Archerfield Airport with 6.8 C, followed by Logan City Water Treatment Plant with 8.0 C.

The warmest nights on average were at Redcliffe with 10.2 C, followed by Brisbane with 9.6 C, followed by Brisbane Aero with 8.5 C.

The warmest night was at Redlands HRS with 18.9 C on the 24th, followed by Redcliffe with 18.6 C on the 24th, followed by Brisbane with 17.9 C on the 24th, followed by Brisbane Aero with 17.9 C on the 24th.

Some sites had their warmest August night (highest daily minimum temperature) on record.

There was no record for a Brisbane cold spell (less than 10 C) for July & August only, which was 13 days (in 2008 there were also 13 days, all occurring in August). The record (for July & August only) is currently 24 days, 25 July to 17 August 1941. 

Wind

The strongest wind gust was at Archerfield Airport with 63 km/h on the 18th, followed by Brisbane Aero with 57 km/h on the 10th, followed by Archerfield Airport with 56 km/h on the 10th.

Further information

Media
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Extremes in August 2012
Hottest day 28.6 C at Amberley AMO on the 30th
28.4 C at Amberley AMO on the 24th
28.3 C at Amberley AMO on the 23rd
28.3 C at Archerfield Airport on the 24th
Warmest days on average 24.0 C at Amberley AMO
23.6 C at Archerfield Airport
23.3 C at Brisbane
Coolest days on average 22.1 C at Redcliffe
22.3 C at Brisbane Aero
23.0 C at Logan City Water Treatment Plant
Coldest day 18.4 C at Redcliffe on the 10th
19.0 C at Redcliffe on the 1st
19.0 C at Logan City Water Treatment Plant on the 10th
Coldest night -1.6 C at Amberley AMO on the 4th
-1.4 C at Amberley AMO on the 5th
-1.4 C at Amberley AMO on the 8th
Coolest nights on average 3.4 C at Amberley AMO
6.8 C at Archerfield Airport
8.0 C at Logan City Water Treatment Plant
Warmest nights on average 10.2 C at Redcliffe
9.6 C at Brisbane
8.5 C at Brisbane Aero
Warmest night 18.9 C at Redlands HRS on the 24th
18.6 C at Redcliffe on the 24th
17.9 C at Brisbane on the 24th
17.9 C at Brisbane Aero on the 24th
Warmest on average overall 16.5 C at Brisbane
16.1 C at Redcliffe
15.5 C at Logan City Water Treatment Plant
Coolest on average overall 13.7 C at Amberley AMO
15.2 C at Archerfield Airport
15.4 C at Brisbane Aero
Wettest overall 4.8 mm at Amberley AMO
1.4 mm at Logan City Water Treatment Plant
0.4 mm at Redcliffe
Wettest day 4.4 mm at Amberley AMO on the 31st
0.4 mm at Amberley AMO on the 18th
0.4 mm at Redcliffe on the 31st
Highest wind gust 63 km/h at Archerfield Airport on the 18th
57 km/h at Brisbane Aero on the 10th
56 km/h at Archerfield Airport on the 10th

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


Record lowest total August rainfall
Total rainfall
for August 2012 (mm)
Previous driest
for August
Years of
record
Average for
August
Redlands HRS 0.0 = 0.0 in 1991 62 52.2
Logan City Water Treatment Plant 1.4 2.0 in 1997 20 47.0



Record highest August daily minimum temperature
Highest daily minimum
temperature
in August 2012 (C)
Previous warmest
for August
Years of
record
Average for
August
Redlands HRS 18.9 on the 24th 18.2 on the 31st in 2004 47 8.3



Summary statistics for August 2012
Maximum temperatures
for August
(C)
Minimum temperatures
for August
(C)
Rainfall
for August
(millimetres)
Mean for
August
2012
Diff
from
average
Highest for
August
2012
Mean for
August
2012
Diff
from
average
Lowest for
August
2012
Total for
August
2012
Average
for
August
Rank of
August
2012
Fraction of
August
average
Moreton South Coast (district 40)
Amberley AMO 24.0 +1.3 28.6 30th 3.4 -2.9 -1.6 4th 4.8 29.1 v low 16%
Archerfield Airport 23.6 +1.1 28.3 24th 6.8 -1.2 1.9 5th 0.2 37.6 v low 1%
Brisbane 23.3 +0.2 27.6 24th 9.6 -1.0 4.1 3rd 0.2 41.4 v low 0%
Brisbane Aero 22.3 +0.6 25.4 9th 8.5 -1.1 3.7 3rd 0.2 40.5 v low 0%
Logan City Water Treatment Plant 23.0 +0.5 26.8 23rd 8.0 -1.3 3.6 3rd 1.4 47.0 lowest 3%
Redcliffe 22.1   26.6 24th 10.2   5.5 3rd 0.4 41.8 v low 1%

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 9 am on Monday 3 September 2012. 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