Wednesday, 1 April 2009 - Monthly Climate Summary for Brisbane Metro - Product code IDCKGC24R0

Brisbane Metro in March 2009

  • Less than 50% of long-term average rainfall at most sites
  • Slightly above average temperatures
  • Slightly above average sunshine hours

An archive of previous monthly summaries for Brisbane Metro is also available, as are summaries for other states and many other climate summaries and diagnostics.

Details

A large high pressure system located over central western Queensland produced a relatively dry, stable and hot air mass over much of the state, including the southeast, on the 1st of the month. Conditions eased in the east of the state on the 2nd.

Within the Brisbane metro area only Redcliffe received more than 50% of its average rainfall for March, reaching 60% of its long-term average for the month. During the first week of March very little rain fell in the Brisbane metro area. On the 9th light rain from a cloudband associated with Tropical Cyclone Hamish brought falls of up to 6.6mm to the area. On the 10th and 11th the combination of a high pressure system near Tasmania and Tropical Cyclone Hamish produced moderate to fresh southeast to easterly winds over the southeast of the state and strong to gale force winds near the coast and islands. These winds directed a mixture of showers and drizzle over the Brisbane metro area. Rain areas developed from the east coast on the 12th and spread west and, along with shower activity, produced falls of between 1.4 and 3.6mm over the Brisbane metro area. Scattered showers continued about the Southeast Coast on the 13th, with more isolated activity inland, and in the twenty four hours up until 9am on the 14th, daily rainfall totals of up to 6.0mm were recorded in the Brisbane metro area.

On the 16th, instability increased over the southeast of the state as an upper trough approached. During the afternoon showers and thunderstorms developed about the southeast to the east of a surface trough and rainfall totals of between 13.2mm and 25.2mm were recorded in the Brisbane metro area in the twenty four hour period up until 9am on the 17th. On the 20th cold middle level air destabilized conditions about the southeast of the state and scattered showers developed, bringing falls of up the 5.6mm to the Brisbane metro area. On the 28th instability increased over the southeast of the state as an upper level cold pool moved over the area and showers developed. Rain areas occurred over the southeast on the 29th and 30th.

The wettest overall was 76.0 mm at Redcliffe, followed by 58.6 mm at Brisbane Aero, followed by 54.5 mm at Logan City Water Treatment station.

The driest overall was 29.6 mm at Amberley AMO, followed by 46.2 mm at Archerfield Airport, followed by 47.6 mm at the Brisbane city weather station.

The wettest single day was 25.2 mm at Brisbane Aero on the 17th, followed by 20.6 mm at Archerfield Airport on the 17th, followed by 20.4 mm at Logan City Water Treatment station on the 17th.

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

Maximum temperatures

The hottest day was 35.8 °C at Amberley AMO on the 1st, followed by 35.1 °C at Logan City Water Treatment station on the 1st, followed by 34.4 °C at Archerfield Airport on the 1st.

The warmest days on average were 30.3 °C at Amberley AMO, followed by 29.0 °C at Archerfield Airport, followed by 29.0 °C at the Brisbane city weather station. 

The coolest days on average were 28.2 °C at Brisbane Aero, followed by 28.2 °C at Redcliffe, followed by 28.7 °C at Logan City Water Treatment station.

The coldest day was 25.3 °C at the Brisbane city weather station on the 13th, followed by 25.8 °C at the Brisbane city weather station on the 11th, followed by 25.8 °C at Amberley AMO on the 13th.

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

Minimum temperatures

The coldest night was 11.5 °C at Amberley AMO on the 26th, followed by 12.0 °C at Amberley AMO on the 25th, followed by 12.3 °C at Amberley AMO on the 27th.

The coolest nights on average were 17.1 °C at Amberley AMO, followed by 18.6 °C at Archerfield Airport, followed by 19.5 °C at Logan City Water Treatment station.

The warmest nights on average were 20.5 °C at Redcliffe, followed by 20.1 °C at the Brisbane city weather station, followed by 19.7 °C at Brisbane Aero.

The warmest night was 24.1 °C at Archerfield Airport on the 3rd, followed by 24.0 °C at the Brisbane city weather station on the 3rd, followed by 24.0 °C at Brisbane Aero on the 9th.

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

Wind

The strongest wind gust was 76 km/h at Archerfield Airport on the 16th, followed by 74 km/h at Redcliffe on the 28th, followed by 67 km/h at Redcliffe on the 9th.

Other phenomena

The average daily number of sunshine hours in Brisbane during March was 8.3, which is slightly above the March average of 7.8. There was only one day of thunderstorm activity at Brisbane Aero in March, compared with an average of two. Thunderstorms occurred in the Ipswich area on the 2nd, 4th, 16th and 21st of the month and in the Brisbane/Logan area on the 4th, 16th, 20th and 21st of the month.

Further information

Queensland Climate Services Centre
Bureau of Meteorology
Phone (07) 3239 8700
Email climate.qld@bom.gov.au

Extremes

Hottest day
Highest temperature
35.8 °C at Amberley AMO on the 1st
35.1 °C at Logan City Water Treatment on the 1st
34.4 °C at Archerfield Airport on the 1st
Warmest days on average
Highest mean daily maximum temperature
30.3 °C at Amberley AMO
29.0 °C at Archerfield Airport
29.0 °C at Brisbane
Coolest days on average
Lowest mean daily maximum temperature
28.2 °C at Brisbane Aero
28.2 °C at Redcliffe
28.7 °C at Logan City Water Treatment
Coldest day
Lowest daily maximum temperature
25.3 °C at Brisbane on the 13th
25.8 °C at Brisbane on the 11th
25.8 °C at Amberley AMO on the 13th
Coldest night
Lowest temperature
11.5 °C at Amberley AMO on the 26th
12.0 °C at Amberley AMO on the 25th
12.3 °C at Amberley AMO on the 27th
Coolest nights on average
Lowest mean daily minimum temperature
17.1 °C at Amberley AMO
18.6 °C at Archerfield Airport
19.5 °C at Logan City Water Treatment
Warmest nights on average
Highest mean daily minimum temperature
20.5 °C at Redcliffe
20.1 °C at Brisbane
19.7 °C at Brisbane Aero
Warmest night
Highest daily minimum temperature
24.1 °C at Archerfield Airport on the 3rd
24.0 °C at Brisbane on the 3rd
24.0 °C at Brisbane Aero on the 9th
Wettest overall
Highest total rainfall
76.0 mm at Redcliffe
58.6 mm at Brisbane Aero
54.5 mm at Logan City Water Treatment
Driest overall
Lowest total rainfall
29.6 mm at Amberley AMO
46.2 mm at Archerfield Airport
47.6 mm at Brisbane
Wettest day
Highest daily rainfall
25.2 mm at Brisbane Aero on the 17th
20.6 mm at Archerfield Airport on the 17th
20.4 mm at Logan City Water Treatment on the 17th
Highest wind gust
76 km/h at Archerfield Airport on the 16th
74 km/h at Redcliffe on the 28th
67 km/h at Redcliffe on the 9th

Records




Summaries

In this table, key sites have been highlighted to make them easier to find. This table is very wide and may not fit if printed.

Summary statistics for March 2009
Maximum temperatures
for March
(°C)
Minimum temperatures
for March
(°C)
Rainfall
for March
(millimetres)
Mean for
March
2009
Diff
from
average
Highest for
March
2009
Mean for
March
2009
Diff
from
average
Lowest for
March
2009
Total for
March
2009
Average
for
March
Rank of
March
2009
Fraction of
March
average
Moreton South Coast (district 40)
Amberley AMO 30.3 +1.0 35.8 1st 17.1 -0.7 11.5 26th 29.6 81.3 average 36%
Archerfield Airport 29.0 +0.3 34.4 1st 18.6 +0.4 14.0 26th 46.2 124.2 low 37%
Brisbane* 29.0 +1.0 33.8 1st 20.1 +0.7 17.3 27th 47.6 140.7 low 34%
Brisbane Aero 28.2 +0.2 31.2 5th 19.7 +0.4 16.3 27th 58.6 76.2 average 77%
Logan City Water Treatment 28.7 +0.3 35.1 1st 19.5 +0.8 15.7 25th 54.5 111.7 low 49%
Redcliffe* 28.2 +0.7 32.8 1st 20.5 +0.6 17.7 27th 76.0 126.8 average 60%

Notes

This statement has been prepared based on information available at 10 am on Wednesday 1 April 2009. 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 10 years of record, as they cannot then be calculated reliably. *In this case, averages from a nearby suitable site have been used instead (these are marked with an *).
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

Queensland Climate Services Centre
Bureau of Meteorology
Phone (07) 3239 8700
Email climate.qld@bom.gov.au