1 February 2010 - Monthly Climate Summary for Brisbane Metro - Product code IDCKGC24R0

Brisbane Metro in January 2010

Hot and dry with a rainy finish.

• Daytime temperatures hotter than usual. 
• Lower than average January rainfall.
• Most rain received at end of January

Details Extremes Records Summaries Important notes the top

Rainfall

Rain was recorded at most sites each day until the 9th in common with a large part of the rest of the state. Very little rain was recorded later, except on the 18th, until the last few days of the month.

During the last few days of January ex Tropical Cyclone Olga traversed southeast through the interior, the monsoon trough was drawn further south along the east coast and a high pressure system over the Tasman Sea helped tighten the surface pressure gradient from the south. This situation brought a strong moist east to northeast flow with showers through the Brisbane area. Rain from the interior was also advected through the area at higher levels.  Most sites recorded their highest daily total on the 30th or 31st. 

The total monthly rain ranged from 27% at Amberley to 56% at Logan of the normal January rainfall for the main weather stations where totals were near 30 mm.

Thunderstorms were recorded during the 3rd, in western parts on the 6th and 8th, in all but the Gold Coast area on the 17th and 18th, in the south and west on the 27 and 28th and throughout on the 29th.

King tides led to salt water incursion to some of the more vulnerable coastal suburbs at month's end.

The wettest overall was 60.5 mm at Logan City Water Treatment, followed by 49.8 mm at Redcliffe, followed by 47.8 mm at Brisbane Aero. 

Further afield in the greater southeast, a selection of the higher totals were Biggenden Post Office with 296.8mm, Eerwah Vale 249.6mm, Ball Lookout Alert* 249mm, Cooroy Composite 238mm,  Eumundi - Crescent Rd 192.2mm, Wamuran Alert* 176mm, Upper Caboolture Alert* 127mm, Springbrook Road 121.6mm, Hinze Dam 118.6mm, Gatton Alert 94mm, Petrie Alert* 88mm.

The driest overall was 30.2 mm at Amberley AMO, followed by 40.2 mm at Brisbane, followed by 46.4 mm at Archerfield Airport.

The wettest single day 33.0 mm at Logan City Water Treatment on the 4th, followed by 20.6 mm at Brisbane on the 4th, followed by 19.6 mm at Archerfield Airport on the 4th.

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

* Alert gauges are part of the operational real time flood warning network with limited quality control.

Temperature

Maximum temperature

Record high mean daily maximum temperatures were recorded at  Cape Moreton and Coolangatta under unusually clear dry January skies and Coolangatta recorded their highest January temperature with 35.9 °C on the 18th.

The daily maximum temperatures were colder than average between the 4th and 7th and then returned to near average until the 16th. Most days from the 17th were hotter than average though the rainy cloud covered skies at the end of the month was a pleasant change.

The hottest day was 38.0 °C at Amberley AMO on the 18th, followed by 37.7 °C at Logan City Water Treatment on the 18th, followed by 37.3 °C at Amberley AMO on the 27th.

The warmest days on average were 32.6 °C at Amberley AMO, followed by 31.3 °C at Archerfield Airport, followed by 31.2 °C at Logan City Water Treatment.

The coolest days on average were 29.7 °C at Brisbane Aero, followed by 29.9 °C at Redcliffe, followed by 31.1 °C at Brisbane.

The coldest day was 26.9 °C at Logan City Water Treatment on the 4th, followed by 27.2 °C at Brisbane Aero on the 31st, followed by 27.3 °C at Amberley AMO on the 4th, followed by 27.3 °C at Redcliffe on the 4th.

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

Minimum temperature

Daily minimum temperatures were close to average prior to the 19th. A cold airmass pushed into the area between the 19th and 21st with most locations recording their coldest overnight temperature for the month early on the 19th. Minima returned to near average until the end of the month.

The coldest night was 12.3 °C at Amberley AMO on the 19th, followed by 15.5 °C at Amberley AMO on the 20th, followed by 16.8 °C at Archerfield Airport on the 19th.

The coolest nights on average were 19.1 °C at Amberley AMO, followed by 20.7 °C at Archerfield Airport, followed by 21.2 °C at Logan City Water Treatment.

The warmest nights on average were 22.1 °C at Redcliffe, followed by 21.9 °C at Brisbane, followed by 21.5 °C at Brisbane Aero.

The warmest night was 24.9 °C at Brisbane on the 3rd, followed by 24.6 °C at Redcliffe on the 3rd, followed by 24.4 °C at Redcliffe on the 15th.

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

Wind

The strongest wind gust was 74 km/h at Archerfield Airport on the 31st, followed by 63 km/h at Redcliffe on the 31st, followed by 61 km/h at Redcliffe on the 4th, followed by 61 km/h at Redcliffe on the 30th, these all being forced by the tight gradient developed between the high pressure system pushing up from the south and the monsoon systems reaching down from the north..

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Extremes in January 2010
Hottest day	38.0 °C at Amberley AMO on the 18th 37.7 °C at Logan City Water Treatment on the 18th 37.3 °C at Amberley AMO on the 27th
Warmest days on average	32.6 °C at Amberley AMO 31.3 °C at Archerfield Airport 31.2 °C at Logan City Water Treatment
Coolest days on average	29.7 °C at Brisbane Aero 29.9 °C at Redcliffe 31.1 °C at Brisbane
Coldest day	26.9 °C at Logan City Water Treatment on the 4th 27.2 °C at Brisbane Aero on the 31st 27.3 °C at Amberley AMO on the 4th 27.3 °C at Redcliffe on the 4th
Coldest night	12.3 °C at Amberley AMO on the 19th 15.5 °C at Amberley AMO on the 20th 16.8 °C at Archerfield Airport on the 19th
Coolest nights on average	19.1 °C at Amberley AMO 20.7 °C at Archerfield Airport 21.2 °C at Logan City Water Treatment
Warmest nights on average	22.1 °C at Redcliffe 21.9 °C at Brisbane 21.5 °C at Brisbane Aero
Warmest night	24.9 °C at Brisbane on the 3rd 24.6 °C at Redcliffe on the 3rd 24.4 °C at Redcliffe on the 15th
Wettest overall	60.5 mm at Logan City Water Treatment 49.8 mm at Redcliffe 47.8 mm at Brisbane Aero
Driest overall	30.2 mm at Amberley AMO 40.2 mm at Brisbane 46.4 mm at Archerfield Airport
Wettest day	33.0 mm at Logan City Water Treatment on the 4th 20.6 mm at Brisbane on the 4th 19.6 mm at Archerfield Airport on the 4th
Highest wind gust	74 km/h at Archerfield Airport on the 31st 63 km/h at Redcliffe on the 31st 61 km/h at Redcliffe on the 4th 61 km/h at Redcliffe on the 30th

Details Extremes Records Summaries Important notes the top

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Details Extremes Records Summaries Important notes the top

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Summary statistics for January 2010
	Maximum temperatures for January (°C)				Minimum temperatures for January (°C)				Rainfall for January (millimetres)
	Mean for January 2010	Diff from average	Highest for January 2010		Mean for January 2010	Diff from average	Lowest for January 2010		Total for January 2010	Average for January	Rank of January 2010	Fraction of January average
Moreton South Coast (district 40)
Amberley AMO	32.6	+1.5	38.0	18th	19.1	-0.5	12.3	19th	30.2	110.6	v low	27%
Archerfield Airport	31.3	+1.0	36.1	18th	20.7	+0.5	16.8	19th	46.4	133.3	low	35%
Brisbane	31.1	+0.8	35.1	18th	21.9	+0.6	17.3	19th	40.2	95.9	low	42%
Brisbane Aero	29.7	+0.7	32.1	18th	21.5	+0.4	17.8	19th	47.8	108.9	low	44%
Logan City Water Treatment	31.2	+1.5	37.7	18th	21.2	+0.8	17.6	19th	60.5	107.5	low	56%
Redcliffe	29.9		32.1	18th	22.1		20.0	19th	49.8

Details Extremes Records Summaries Important notes the top

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