Monday, 2 February 2009 - Monthly Climate Summary for Brisbane Metro - Product code IDCKGC14R0

Brisbane Metro in January 2009
Late rain brings some relief

  • Below average rainfall, closer to average near the coast
  • Close to average maximum and minimum temperatures
  • Below average sunshine

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

During the first three weeks of the year there was little rainfall recorded in the Brisbane region.  Cloudy conditions with patchy rain on the 2nd, associated with an upper trough over southeast Queensland, brought falls of less than 9 mm to parts of the Brisbane metro area.  Showers along the southern Queensland coast in the onshore southeasterly flow on the 3rd again brought falls of less than 9 mm to parts of the Brisbane region.  These were largest daily falls recorded for the month until a cloud and rainband associated with an upper trough brought falls of between 16 and 34.9 mm to the Brisbane metro area between 9am on the 22nd and 9am on the 23rd.  After the cloud band moved north during the afternoon and evening of the 23rd, showers persisted over the Brisbane region in a moist onshore flow.  Shower activity then increased about the region on the 25th as a ridge built over southeast Queensland and the low level flow tended east to northeasterly.  Showers continued in the moist onshore flow on the 26th and 27th, easing a little on the 28th and 29th but persisting until the end of the month.

The wettest location overall was Redcliffe, with 90.8 mm.

The driest location overall was Archerfield Airport with 37.4 mm.

The wettest single day was at Logan City Water Treatment station on the 23rd, when 34.9 mm of rainfall was recorded, followed by 29.8 mm at Brisbane on the 26th, followed by 26.6 mm at Brisbane on the 23rd.

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

Maximum temperature

The hottest day was at Amberley AMO on the 16th, with 37.3 °C, followed by 37.0 °C on the 1st, followed by 35.6 °C at Logan City Water Treatment station, also on the 1st.

The warmest days on average were at Amberley AMO with 31.0 °C, followed by 30.4 °C at Archerfield Airport, followed by 30.1 °C at the Brisbane city weather station at Kangaroo Point.

The coolest days on average were at Redcliffe, with 29.0 °C, followed by 29.2 °C at Brisbane Aero, followed by 29.4 °C at Logan City Water Treatment station.

The coldest day was on the 3rd when 24.9 °C was recorded at Archerfield Airport, 25.7 °C at Brisbane Aero, 25.7 °C at Logan City Water Treatment station and 25.9 °C at Redcliffe.

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

Minimum temperature

The coldest night was at Amberley AMO on the 10th, with 14.5 °C , followed by 15.0 °C on the 19th, followed by 15.7 °C on the 11th.

The coolest nights on average were at Amberley AMO with 19.6 °C, followed by Archerfield Airport with 20.2 °C, followed by Logan City Water Treatment station with 20.8 °C.

The warmest nights on average were at Redcliffe, with 21.8 °C , followed by 21.3 °C at both the Brisbane city weather station and Brisbane Aero, followed by 20.8 °C at Logan City Water Treatment station.

The warmest night was at Logan City Water Treatment station on the 25th, with 25.5 °C , followed by 25.2 °C at the Brisbane city weather station on the 25th, followed by 25.0 °C on the 22nd.

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

Wind

The strongest wind gust was 76 km/h at Redcliffe on the 1st, followed by 74 km/h at Redcliffe on the 3rd, followed by 72 km/h at Redcliffe on the 17th.

Other phenomena

The average daily number of sunshine hours in Brisbane during January was 7.9, below the January average of 8.5.  There were two days of thunderstorm activity at Brisbane Aero in January, compared with an average of three days. On the 1st, isolated showers and thunderstorms developed east of an inland trough and thunderstorms were observed in the Brisbane metro area.  Between the 2nd and the 21st there were no thunderstorms in the area.  Thunderstorms occurred in the Ipswich area on the 22nd, 23rd, 25th, 26th and 27th and in the Brisbane city area on the 25th.

Further information

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

Extremes

Hottest day
Highest temperature
37.3 °C at Amberley AMO on the 16th
37.0 °C at Amberley AMO on the 1st
35.6 °C at Logan City Water Treatment on the 1st
Warmest days on average
Highest mean daily maximum temperature
31.0 °C at Amberley AMO
30.4 °C at Archerfield Airport
30.1 °C at Brisbane
Coolest days on average
Lowest mean daily maximum temperature
29.0 °C at Redcliffe
29.2 °C at Brisbane Aero
29.4 °C at Logan City Water Treatment
Coldest day
Lowest daily maximum temperature
24.9 °C at Archerfield Airport on the 3rd
25.7 °C at Brisbane Aero on the 3rd
25.7 °C at Logan City Water Treatment on the 3rd
25.9 °C at Redcliffe on the 3rd
Coldest night
Lowest temperature
14.5 °C at Amberley AMO on the 10th
15.0 °C at Amberley AMO on the 19th
15.7 °C at Amberley AMO on the 11th
Coolest nights on average
Lowest mean daily minimum temperature
19.6 °C at Amberley AMO
20.2 °C at Archerfield Airport
20.8 °C at Logan City Water Treatment
Warmest nights on average
Highest mean daily minimum temperature
21.8 °C at Redcliffe
21.3 °C at Brisbane
21.3 °C at Brisbane Aero
20.8 °C at Logan City Water Treatment
Warmest night
Highest daily minimum temperature
25.5 °C at Logan City Water Treatment on the 25th
25.2 °C at Brisbane on the 25th
25.0 °C at Brisbane on the 22nd
Wettest overall
Highest total rainfall
90.8 mm at Redcliffe
87.0 mm at Logan City Water Treatment
77.4 mm at Brisbane
Driest overall
Lowest total rainfall
37.4 mm at Archerfield Airport
52.2 mm at Amberley AMO
71.2 mm at Brisbane Aero
Wettest day
Highest daily rainfall
34.9 mm at Logan City Water Treatment on the 23rd
29.8 mm at Brisbane on the 26th
26.6 mm at Brisbane on the 23rd
Highest wind gust
76 km/h at Redcliffe on the 1st
74 km/h at Redcliffe on the 3rd
72 km/h at Redcliffe on the 17th

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 January 2009
Maximum temperatures
for January
(°C)
Minimum temperatures
for January
(°C)
Rainfall
for January
(millimetres)
Mean for
January
2009
Diff
from
average
Highest for
January
2009
Mean for
January
2009
Diff
from
average
Lowest for
January
2009
Total for
January
2009
Average
for
January
Rank of
January
2009
Fraction of
January
average
Moreton South Coast (district 40)
Amberley AMO 31.0 -0.1 37.3 16th 19.6 -0.1 14.5 10th 52.2 111.4 low 47%
Archerfield Airport 30.4 0.0 34.8 1st 20.2 0.0 16.6 14th 37.4 133.8 low 28%
Brisbane* 30.1 +0.7 33.9 1st 21.3 +0.6 18.6 12th 77.4 159.6 low 49%
Brisbane Aero* 29.2 +0.1 31.4 1st 21.3 +0.4 17.6 14th 71.2 157.7 low 45%
Logan City Water Treatment 29.4 -0.2 35.6 1st 20.8 +0.5 16.6 15th 87.0 110.3 average 79%
Redcliffe* 29.0 0.0 31.8 1st 21.8 -0.1 19.0 15th 90.8 111.6 average 81%

Notes

This statement has been prepared based on information available at 7 am on Monday 2 February 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, normals from a nearby suitable site may be included to calculate statistics (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