Brisbane Metro in April 2011: Above the average rainfall

  • Above the average rainfall
  • Cooler daytime temperatures while near the average during nighttime

Rainfall

Rainfall during April was above the long-term average across most sites around the Brisbane area. The wettest periods were between the 7th to the 9th and between the 18th to the 20th. On the 22nd, some flash flooding was reported near the Logan, Underwood and Springwood areas due to slow moving thunderstorms.

The wettest overall was Redlands HRS with 226.0 mm, followed by Logan City Water Treatment Plant with 151.0 mm, then Redcliffe with 150.0 mm.

The driest overall was Amberley AMO with 42.0 mm, followed by Archerfield Airport with 96.4 mm, then Brisbane Aero with 97.0 mm.

The wettest single day was at Redcliffe with 40.8 mm on the 19th, followed by Redlands HRS with 40.6 mm on the 19th, then Redlands HRS with 40.2 mm on the 8th.

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

Temperature

The warmest on average was Brisbane with 21.8 C, followed by Redcliffe with 21.5 C, then Brisbane Aero and Logan City Water Treatment Plant with 21.1 C.

The coolest on average was Amberley AMO with 20.4 C, followed by Archerfield Airport with 20.8 C, then Brisbane Aero and Logan City Water Treatment Plant with 21.1 C.

Maximum temperature

The hottest day was at Amberley AMO with 29.9 C on the 22nd, followed by Brisbane with 29.4 C on the 14th and 22nd, then with 29.2 C at Amberley AMO on the 21st and at Archerfield Airport on the 22nd.

The warmest days on average were at Amberley AMO with 26.4 C, followed by Brisbane with 26.2 C, then Archerfield Airport with 25.9 C.

The coolest days on average were at Redcliffe with 24.9 C, followed by Brisbane Aero with 25.3 C, then Logan City Water Treatment Plant with 25.6 C.

The coldest day was at Brisbane Aero with 20.6 C on the 18th, followed by Brisbane with 20.8 C on the 18th, then at Archerfield Airport and Logan City Water Treatment Plant with 21.1 C on the 18th.

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

Minimum temperature

The coldest night was at Amberley AMO with 10.3 C on the 13th, followed by Amberley AMO with 10.8 C on the 10th, then Amberley AMO with 11.3 C on the 30th.

The coolest nights on average were at Amberley AMO with 14.4 C, followed by Archerfield Airport with 15.7 C, then Logan City Water Treatment Plant with 16.6 C.

The warmest nights on average were at Redcliffe with 18.0 C, followed by Brisbane with 17.4 C, then Brisbane Aero with 16.9 C.

The warmest night was at Redcliffe with 19.9 C on the 1st, followed by Redcliffe again with 19.5 C on the 16th, then Brisbane with 19.5 C on the 20th.

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

Wind

The strongest wind gust was at Redcliffe with 65 km/h on the 5th, followed by Redcliffe with 63 km/h on the 26th, then Redcliffe with 61 km/h on the 27th.

Further information

Media
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Extremes in April 2011
Hottest day 29.9 C at Amberley AMO on the 22nd
29.4 C at Brisbane on the 14th
29.4 C at Brisbane on the 22nd
29.2 C at Amberley AMO on the 21st
29.2 C at Archerfield Airport on the 22nd
Warmest days on average 26.4 C at Amberley AMO
26.2 C at Brisbane
25.9 C at Archerfield Airport
Coolest days on average 24.9 C at Redcliffe
25.3 C at Brisbane Aero
25.6 C at Logan City Water Treatment Plant
Coldest day 20.6 C at Brisbane Aero on the 18th
20.8 C at Brisbane on the 18th
21.1 C at Archerfield Airport on the 18th
21.1 C at Logan City Water Treatment Plant on the 18th
Coldest night 10.3 C at Amberley AMO on the 13th
10.8 C at Amberley AMO on the 10th
11.3 C at Amberley AMO on the 30th
Coolest nights on average 14.4 C at Amberley AMO
15.7 C at Archerfield Airport
16.6 C at Logan City Water Treatment Plant
Warmest nights on average 18.0 C at Redcliffe
17.4 C at Brisbane
16.9 C at Brisbane Aero
Warmest night 19.9 C at Redcliffe on the 1st
19.5 C at Redcliffe on the 16th
19.5 C at Brisbane on the 20th
19.4 C at Brisbane Aero on the 20th
19.4 C at Redcliffe on the 21st
Warmest on average overall 21.8 C at Brisbane
21.5 C at Redcliffe
21.1 C at Brisbane Aero
21.1 C at Logan City Water Treatment Plant
Coolest on average overall 20.4 C at Amberley AMO
20.8 C at Archerfield Airport
21.1 C at Brisbane Aero
21.1 C at Logan City Water Treatment Plant
Wettest overall 226.0 mm at Redlands HRS
151.0 mm at Logan City Water Treatment Plant
150.0 mm at Redcliffe
Driest overall 42.0 mm at Amberley AMO
96.4 mm at Archerfield Airport
97.0 mm at Brisbane Aero
Wettest day 40.8 mm at Redcliffe on the 19th
40.6 mm at Redlands HRS on the 19th
40.2 mm at Redlands HRS on the 8th
Highest wind gust 65 km/h at Redcliffe on the 5th
63 km/h at Redcliffe on the 26th
61 km/h at Redcliffe on the 27th




Summary statistics for April 2011
Maximum temperatures
for April
(C)
Minimum temperatures
for April
(C)
Rainfall
for April
(millimetres)
Mean for
April
2011
Diff
from
average
Highest for
April
2011
Mean for
April
2011
Diff
from
average
Lowest for
April
2011
Total for
April
2011
Average
for
April
Rank of
April
2011
Fraction of
April
average
Moreton South Coast (district 40)
Amberley AMO 26.4 -0.8 29.9 22nd 14.4 +0.4 10.3 13th 42.0 55.2 average 76%
Archerfield Airport 25.9 -0.5 29.2 22nd 15.7 +0.7 12.8 10th 96.4 80.3 high 120%
Brisbane 26.2 -1.0 29.4 22nd 17.4 +0.1 15.3 10th 100.2 60.0 high 167%
Brisbane Aero 25.3 -0.7 28.8 14th 16.9 +0.6 14.8 13th 97.0 67.5 high 144%
Logan City Water Treatment Plant 25.6 -0.8 29.0 14th 16.6 +0.7 14.0 10th 151.0 78.9 v high 191%
Redcliffe 24.9   26.9 11th 18.0   16.1 30th 150.0

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 10 am on Tuesday 3 May 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