Monday, 3 August 2009 - Monthly Climate Summary for Queensland - Product code IDCKGC24R0

A dry and warm July 2009

  • Lower than expected rainfall for July
  • Warmer than average daytime temperatures
  • Average minimum temperatures in the south
  • Cooler than average minimum temperatures across the north

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

Details

Dry conditions occurred across most of the state, with only parts of the northern districts receiving average rainfall. Area averaged across the state, rainfall was ranked the 5th lowest, based on records since 1900.  

Maximum temperatures were warmer than average, while minimum temperatures were slightly below normal.

Rainfall

Drier than expected conditions occurred across most of the state, however, statistically July is one of the driest months of the year in Queensland. Only some places in the North Tropical Coast district received over 100 mm of rainfall for July, but elsewhere, totals did not exceed 60 mm due to the lack of any significant rain-bearing systems in the state during the month.

Area averaged across the state, July had the 5th lowest rainfall on record, based on figures since 1900. It has also been the driest July since 2007.

The greater southeast of the state expects around 50 mm of rainfall in July, increasing to around 100 mm on average along exposed coastal parts. Other exposed areas along the east coast also expect to receive around 100 mm. Less than 50 mm on average falls in the remaining districts during July, while it is not unusual for the Gulf Country and the western Peninsula regions to receive little or no rainfall at this time of year.

From available figures, some parts of the North Tropical Coast district were the wettest places overall, with 128 mm recorded at Bellenden Ker Top Station, 71 mm of rainfall recorded at Bulgun Creek Alert, and 61 mm at Topaz Alert.

The highest daily rainfall occurred at Bulgun Creek Alert with 33 mm on the 29th, and then Mt Sophia with 26 mm on the 26th. 

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

Temperature

Temperatures in all districts were warmer than average during the day, and close to average, or slightly cooler than average overnight, more so in the northern interior.

Maximum temperature

Preliminary figures of state-wide area averaged maximum temperature rank July as the 9th warmest on record, based on figures since 1950. The area averaged maximum temperature was 1.19°C above the long term average (which is 22.95°C for July).

Warmer than usual daytime temperatures can be attributed to the north to northwest winds directed over the state during the month. Some places had their highest July mean daily maximum temperature on record.

The hottest day was 35.2°C at Century Mine on the 1st. Some record high daily maximum temperatures also occurred at some stations in the central districts due to warm north to northwest winds ahead of a surface trough on the 1st. A map of the maximim temperature anomalies for the 1st of July can be seen here.

The warmest days on average were 31.9°C at Scherger RAAF.

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

Minimum temperature

Average and slightly below average minimum temperatures were recorded over much of the state, with the largest anomalies in the north. Lower than average overnight temperatures were due to the lack of cloud cover during the month. Only the southwest districts experienced slightly above average.

From preliminary figures, the state-wide area averaged minimum temperature was slightly below the long term normal. Based on figures since 1950, the area averaged minimum temperature was −0.11°C below the long term average (which is 8.94°C for July)

The coldest night was −4.0°C at Stanthorpe Leslie Parade on the 29th, while the coolest nights on average were 1.4°C, also at Stanthorpe Leslie Parade.

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

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

Wind

The strongest wind gust was 96 km/h at Double Island Point Lighthouse and then 91 km/h at Cape Moreton Lighthouse, both on the 10th.

Other phenomena

Widespread dust was observed across the state on the 1st and 2nd.

Further information

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

Extremes

Hottest day
Highest temperature
35.2°C at Century Mine on the 1st
Warmest days on average
Highest mean daily maximum temperature
31.9°C at Scherger RAAF
Coolest days on average
Lowest mean daily maximum temperature
14.3°C at Applethorpe
Coldest day
Lowest daily maximum temperature
8.6°C at Applethorpe on the 16th
Coldest night
Lowest temperature
−4.0°C at Stanthorpe Leslie Parade on the 29th
Coolest nights on average
Lowest mean daily minimum temperature
1.4°C at Stanthorpe Leslie Parade
Warmest nights on average
Highest mean daily minimum temperature
24.0°C at Coconut Island
Warmest night
Highest daily minimum temperature
25.0°C at Coconut Island on the 8th and the 10th
Wettest overall
Highest total rainfall
128 mm at Bellenden Ker Top Station
71 mm at Bulgun Creek
61 mm at Topaz Alert
Wettest day
Highest daily rainfall
33 mm at Bulgun Creek Alert
Highest wind gust
96 km/h at Double Island Point Lighthouse on the 10th
91 km/h at Cape Moreton Lighthouse on the 10th

Records


Record highest July temperature
Highest temperature
in July 2009 (°C)
Previous highest
for July
Years of
record
Average for
July
Tambo Post Office 30.0 on the 1st 29.6 on the 19th in 1996 53 21.2
Taroom Post Office 30.0 on the 1st 29.4 on the 29th in 1958 53 20.9
Gladstone Radar 29.4 on the 2nd 28.7 on the 14th in 1964 52 22.8
Clermont Sirius St 30.7 on the 1st 30.5 on the 25th in 1996 48 23.0
Monto Township 28.4 on the 1st 28.3 on the 21st in 1963 37 20.8



Record highest July mean daily maximum temperature
Mean daily maximum
temperature
for July 2009 (°C)
Previous highest
for July
Years of
record
Average for
July
Rockhampton Aero 25.0 24.6 in 2004 69 23.1
Gladstone Radar 24.8 24.7 in 2005 51 22.8
Kairi Research Station 23.4 22.9 in 1995 47 21.0
Lockhart River Airport 28.3 28.1 in 1988 43 27.0
Walkamin DPI 24.8 = 24.8 in 1995 40 23.2



Record highest July daily minimum temperature
Highest daily minimum
temperature
in July 2009 (°C)
Previous highest
for July
Years of
record
Average for
July
Low Isles Lighthouse 23.7 on the 1st 23.5 on the 1st in 1981 42 20.4




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 July 2009
Maximum temperatures
for July
(°C)
Minimum temperatures
for July
(°C)
Rainfall
for July
(millimetres)
Mean for
July
2009
Diff
from
average
Highest for
July
2009
Mean for
July
2009
Diff
from
average
Lowest for
July
2009
Total for
July
2009
Average
for
July
Rank of
July
2009
Fraction of
July
average
North Peninsula (district 27)
Coconut Island 31.4 +2.5 32.5 9th 24.0 +0.3 21.9 3rd 6.2 15.2 low 41%
Coen Airport 29.7   31.4 23rd 16.1   13.2 17th 0
Horn Island 29.4 +0.8 30.1 20th 23.2 +0.3 19.8 15th 2.6 8.5 very low 31%
Scherger RAAF 31.9   33.2 25th 18.1   15.4 17th 1.0
Weipa Aero 31.7 +0.8 33.2 24th 18.3 −0.3 15.2 17th 0 1.1 very low 0%
South Peninsula (district 28)
Lockhart River Airport 28.3 +1.3 29.7 15th 18.1 −1.2 14.9 12th 20.0 41.6 low 48%
Musgrave 31.6 +2.0 33.2 31st 12.6 −0.9 6.9 16th 0 4.0 lowest 0%
Palmerville 30.5 +0.7 33.7 2nd 13.0 −1.0 6.1 16th 0 5.2 lowest 0%
Lower Carpentaria (district 29)
Burketown Airport 28.8   34.6 1st 12.8   8.8 17th 0
Century Mine 28.6   35.2 1st 11.1   4.5 18th 0
Cloncurry Airport 26.4 +0.1 34.4 1st 9.1 −1.3 3.7 18th 0 0.9 very low 0%
Croydon Township 29.3 +0.1 33.8 1st 12.2 −1.8 5.4 16th 0 4.0 lowest 0%
Julia Creek Airport 27.1   34.2 1st 7.3   2.3 18th 0
Kowanyama Airport 31.5 +0.9 33.2 24th 13.9 −1.4 6.3 18th 0 2.5 lowest 0%
Mornington Island 26.5 +0.9 30.7 2nd 15.4 −0.6 10.0 18th 0.2 2.4 average 8%
Mount Isa Aero 25.3 +0.6 33.1 1st 7.5 −1.1 −0.4 18th 0 6.0 lowest 0%
Normanton Airport 29.8   33.6 2nd 15.0   9.6 16th 0.4
Sweers Island 25.9   28.7 2nd 17.2   12.5 7th 1.0 4.0 high 25%
Upper Carpentaria (district 30)
Georgetown Airport 29.0   33.2 2nd 10.8   0.5 16th 0
Hughenden Airport 26.5   33.1 1st 7.0   0.5 17th 0
Richmond Airport 27.1 +0.7 33.5 1st 6.2 −2.5 1.0 18th 0 6.4 very low 0%
Richmond Post Office 27.2 +1.3 34.0 1st 7.8 −0.8 1.9 15th 0 9.4 lowest 0%
Barron North Coast (district 31)
Cairns Aero 27.0 +1.4 29.9 24th 16.6 −0.4 11.4 5th 4.8 29.3 very low 16%
Cape Flattery 27.9   29.3 8th 20.9   15.7 3rd 28.2
Cooktown Airport 27.6   29.1 15th 16.5   11.3 17th 8.4 20.1 low 42%
Green Island 23.8 +0.3 25.3 21st 21.1 +1.0 19.2 17th
Kairi Research Station 23.4 +2.3 27.8 2nd 9.9 −1.2 3.4 17th 5.8 27.2 very low 21%
Mareeba Airport 25.9   30.3 3rd 13.2   9.5 17th 0 5.6 very low 0%
Walkamin DPI 24.8 +1.6 29.4 2nd 12.3 −0.6 7.1 18th 0.6 11.2 very low 5%
Herbert North Coast (district 32)
Cardwell Marine Pde 25.2 +0.4 27.8 3rd 14.4 +0.8 7.6 18th 7.6 31.2 low 24%
Ingham Composite 25.9 +1.0 30.3 2nd 14.0 +0.4 7.5 17th 8.8 34.8 low 25%
Innisfail 25.1 +1.0 27.7 24th 16.1 +0.9 10.8 18th 46.8 134.5 low 35%
Lucinda Point 23.3 +0.2 25.9 14th 18.3 +0.5 14.3 18th 15.4 21.3 average 72%
Townsville Aero 26.2 +1.2 28.8 2nd 13.0 −0.6 6.7 17th 0.2 13.9 low 1%
East Central Coast (district 33)
Alva Beach 24.8 +0.5 26.9 2nd 13.5 −0.5 7.9 17th 0 14.7 very low 0%
Ayr DPI Research Stn 26.1 +1.0 30.4 2nd 11.3 −0.2 4.3 17th 0 14.7 lowest 0%
Bowen Airport 25.5 +1.0 27.8 2nd 13.1 −0.4 6.2 17th 0 19.3 lowest 0%
Collinsville Post Office 26.4 +1.4 31.4 2nd 8.1 −0.9 1.6 18th 0 20.2 lowest 0%
Hamilton Island Airport 21.9   25.6 2nd 18.4   16.8 17th 0.2
Mackay Aero 23.5 +1.1 28.1 14th 9.7 −1.3 3.7 17th 0.4 34.2 very low 1%
Mackay M.O 22.2 +0.9 27.0 2nd 13.0 +0.2 7.5 18th 0.8 39.4 very low 2%
Proserpine Airport 24.9 +0.6 29.1 14th 9.0 −1.9 0.6 17th 0 20.8 lowest 0%
Samuel Hill Aero 23.1   27.3 23rd 7.3   0.7 18th 8.2
St Lawrence 24.8   30.5 2nd 9.0   1.4 18th 0
St Lawrence Post Office 25.1 +1.3 30.3 2nd 10.8 0.0 4.3 18th 0 31.5 lowest 0%
Williamson 24.9   30.2 2nd 7.0   0.1 18th 0
Woolshed 23.1 +1.4 30.1 2nd 10.8 +0.8 1.1 17th 0 22.9 very low 0%
Yeppoon The Esplanade 21.9 +0.6 29.0 2nd 10.7 −1.0 4.7 18th 0.6 26.7 very low 2%
West Central Coast (district 34)
Charters Towers Airport 25.8 +1.0 31.9 2nd 11.1 −0.3 4.4 18th 0 15.9 very low 0%
Moranbah Water Treatment Plant 24.8 +1.1 30.0 1st 9.6 −0.2 3.5 17th 0 18.5 lowest 0%
Central Highlands (district 35)
Brigalow Research Stn 23.3 +1.6 27.7 21st 5.3 −1.1 0.5 15th 0 30.5 lowest 0%
Clermont Sirius St 24.4 +1.4 30.7 1st     −3.5 18th 0 24.9 lowest 0%
Emerald Airport 23.9 +0.6 29.3 1st 7.3 −1.7 2.7 15th 0 12.3 very low 0%
Rolleston 23.7 +0.8 28.9 2nd 4.3 −1.3 −0.5 19th 0 28.9 lowest 0%
Springsure Dame St 22.7 +0.6 29.2 1st 7.2 +1.0 1.6 15th 0 28.6 lowest 0%
Tambo Post Office 22.7 +1.5 30.0 1st 3.2 −0.5 −2.0 17th 0 27.2 lowest 0%
Taroom Post Office 22.5 +1.6 30.0 1st 4.6 −0.4 −0.8 18th 0 33.6 lowest 0%
Central Lowlands (district 36)
Barcaldine Post Office 23.9 +1.2 31.9 1st 8.5 +0.6 2.9 17th 0 22.9 lowest 0%
Blackall Airport 23.1   31.2 1st 5.7   0.0 17th 0
Isisford Post Office 24.2 +1.6 31.9 1st 6.8 +0.3 1.4 17th 0 20.7 lowest 0%
Longreach Aero 24.9 +1.4 33.6 1st 6.2 −0.8 1.0 19th 0.2 18.8 average 1%
Upper Western (district 37)
Camooweal Township 26.4 +0.7 33.7 1st 8.6 −0.1 3.2 18th 0 5.5 lowest 0%
The Monument Airport 24.3   32.0 22nd 6.8   1.5 18th 0
Trepell Airport 24.7   31.5 22nd 6.7   3.2 17th 0
Urandangi 24.5 +0.5 32.5 22nd 6.6 −0.4 3.0 16th 0 8.9 lowest 0%
Winton Airport 25.8   33.7 1st 6.7   1.8 18th 0
Winton Post Office 25.2 +0.8 32.6 1st 8.2 +0.1 2.6 18th 0 14.8 lowest 0%
Lower Western (district 38)
Bedourie Police Station 23.5 +0.2 33.0 1st     5.2 8th 0 10.2 lowest 0%
Birdsville Airport 22.0   31.1 21st 7.4   3.5 18th 0 3.7 very low 0%
Boulia Airport 24.0 +1.1 32.4 21st 8.0 +0.3 3.4 18th 0 9.3 lowest 0%
Windorah Post Office 22.5 +1.1 30.0 21st 7.0 +0.5 2.8 19th 0 14.8 lowest 0%
Port Curtis South Coast (district 39)
Baralaba Post Office 24.3 +1.2 29.4 1st 6.6 −0.8 1.7 18th 0 29.3 lowest 0%
Bundaberg Aero 22.6 +0.6 26.7 2nd 10.5 +0.3 5.6 17th 0.2 41.7 very low 0%
Gayndah Airport 22.6   26.3 23rd 5.8   1.3 17th 0.8
Gladstone Airport 23.7 +0.9 29.6 2nd 11.2 −0.6 6.1 18th 0 22.4 very low 0%
Gladstone Radar 24.8 +2.1 29.4 2nd 13.6 +0.2 10.7 17th 0.8 34.4 very low 2%
Lady Elliot Island 21.5 +0.5 24.3 23rd 16.6 0.0 12.9 1st 19.8 92.9 low 21%
Monto Township 22.4 +1.7 28.4 1st 4.1 −1.2 −1.1 18th 0 36.1 lowest 0%
Rockhampton Aero 25.0 +1.9 29.9 2nd 9.3 −0.1 3.2 18th 0.2 29.2 very low 1%
Rundle Island 20.8 +0.2 23.3 23rd 16.0 0.0 12.7 17th
Sandy Cape Lighthouse 21.6 +0.5 24.6 21st 14.6 +0.4 10.8 5th 20.1 89.9 low 22%
Seventeen Seventy 22.2 +1.0 23.6 20th 13.8 0.0 10.0 6th 0 40.4 lowest 0%
Thangool Winston Street 23.4 +0.2 27.1 23rd 5.4 −0.1 −0.4 17th 0 29.1 lowest 0%
Moreton South Coast (district 40)
Amberley AMO 21.6 +0.4 26.2 23rd 4.8 −0.5 0.3 15th 2.6 39.5 very low 7%
Archerfield Airport 21.2 +0.1 25.7 23rd 7.5 0.0 3.0 15th 2.2 49.7 very low 4%
Beaudesert Drumley Street 21.1   25.6 23rd 4.9   −0.9 17th 0.2
Beerburrum Forest Station 21.4 −0.4 26.2 23rd 8.9 −0.2 5.2 17th 13.8 67.3 low 21%
Brisbane* 21.4 +1.0 25.8 23rd 10.2 +0.7 6.2 15th 3.6 56.5 very low 6%
Brisbane Aero* 20.8 +0.2 25.3 13th 8.8 −0.7 3.7 15th 3.0 62.6 very low 5%
Cape Moreton Lighthouse 19.2 +0.3 22.0 27th 13.8 +0.6 10.1 17th 51.8 115.6 low 45%
Coolangatta 20.8 +0.3 25.9 23rd 9.5 −0.7 3.1 4th 15.8 74.8 low 21%
Double Island Point Lighthouse 20.0 +0.5 23.9 2nd 14.0 +0.1 8.5 17th 7.0 87.0 very low 8%
Gold Coast Seaway 21.4 +0.3 25.7 23rd 11.4 −0.6 6.8 15th 7.2 44.6 average 16%
Gympie 21.8 −0.1 26.3 23rd 6.0 −0.2 1.2 18th 3.0 53.0 low 6%
Hervey Bay Airport 21.5 −0.1 23.7 21st 9.7 −0.1 3.8 17th 2.8 51.4 low 5%
Jimna Forestry 17.7   23.0 1st 4.5   −0.3 30th 3.8 24.4 low 16%
Kingaroy Airport 19.5   24.3 1st 3.0   −2.3 15th 0.4
Logan City Water Treatment 21.4 0.0 26.5 23rd 9.7 +1.3 6.0 15th 4.6 35.6 low 13%
Maleny Tamarind St 18.7   23.4 23rd 9.5   5.8 5th 16.4 90.0 low 18%
Maroochydore Aero 21.1 +0.3 25.6 23rd 8.8 −0.5 4.1 5th 4.8 67.0 low 7%
Maryborough 22.4 +0.4 26.2 23rd 8.2 −0.4 3.0 5th 1.8 52.5 very low 3%
Nambour DPI - Hillside 21.2   25.1 23rd 10.0   5.5 15th 12.2
Point Lookout 21.5 +0.7 24.4 3rd 12.7 −1.0 8.3 18th 39.1 102.7 low 38%
Rainbow Beach 21.0 −0.2 25.1 2nd       5.4 78.1 very low 7%
Redcliffe* 20.3 −0.4 26.3 23rd 10.5  +0.6 6.3 5th 4.0 51.3 very low 8%
Tewantin RSL Park 21.2 0.0 26.1 2nd 10.6 −0.3 6.3 17th 1.8 78.7 very low 2%
Toolara 21.3 −0.6 24.1 21st 10.9 −0.4 4.8 17th 5.2 58.1 low 9%
University of Queensland Gatton 21.4 +0.7 26.5 1st 5.0 −1.2 1.5 30th 1.0 37.7 very low 3%
East Darling Downs (district 41)
Applethorpe 14.3 +0.4 19.5 1st 2.3 +0.5 −3.7 29th 15.0 44.6 low 34%
Dalby Airport 19.4 −0.3 24.3 1st 2.8 −1.3 −1.4 28th 3.0 23.5 low 13%
Goondiwindi Airport 19.0 −0.1 24.4 1st 5.2 +0.7 1.2 6th 8.0 31.2 average 26%
Inglewood Forest 18.6   23.7 1st 6.1   2.1 29th 15.4 23.2 average 66%
Oakey Aero 18.8 +0.3 23.4 1st 2.5 −0.2 −3.3 29th 2.4 30.5 low 8%
Stanthorpe Leslie Parade 15.2 +0.4 20.0 1st 1.4 +0.5 −4.0 29th 11.6 49.0 low 24%
Texas Post Office 18.5 −0.3 22.3 22nd 4.1 +0.6 −0.1 29th 11.8 41.8 low 28%
Toowoomba Airport 16.6 +0.1 22.2 1st 5.9 −0.4 1.4 5th 3.8 30.2 low 13%
Warwick 17.7 −0.3 23.3 1st 3.2 +0.6 −3.2 20th 4.6 24.5 average 19%
West Darling Downs (district 42)
Miles Constance Street 20.1 +0.2 25.9 1st 3.4 −0.7 −2.0 29th 1.2 15.8 low 8%
Maranoa (district 43)
Injune Post Office 21.2 +1.3 29.5 1st 2.1 −1.0 −3.3 18th 0.2 29.9 low 1%
Mitchell Post Office 20.9 +1.6 27.8 1st 2.1 −0.7 −3.2 18th 2.0 33.5 low 6%
Roma Airport 20.1 0.0 26.1 1st 2.8 −1.1 −2.1 18th 1.6 23.9 low 7%
St George Airport 19.7 +0.2 25.3 1st 5.5 +0.7 0.7 25th 5.8 25.1 average 23%
Surat 20.0 +0.3 25.6 1st 4.5 +0.3 −0.4 19th 2.2 38.6 low 6%
Warrego (district 44)
Bollon Mary St 20.3 +1.3 25.7 22nd 5.3 +1.1 0.5 25th 8.5 27.4 average 31%
Charleville Aero 20.6 +1.1 25.9 26th 4.5 +0.3 −0.9 18th 0.8 24.5 low 3%
Cunnamulla Post Office 19.8 +1.0 25.6 12th 7.0 +1.4 2.8 29th 4.6 22.5 average 20%
Far Southwest (district 45)
Ballera Gas Field 20.6   30.2 21st 7.2   2.9 25th 0.4
Quilpie Airport 20.8 +0.7 27.0 21st 6.5 +0.4 1.4 19th 0 15.8 lowest 0%
Thargomindah Airport 20.3 −0.1 27.9 22nd 7.4 +0.7 1.6 18th 0.2 6.4 low 3%

Notes

This statement has been prepared based on information available at 9 am on Monday 3 August 2009. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Please note that the rainfall data from Bureau of Meteorology telemetry gauges (those with ALERT, AL or TM in their names) includes real-time operational data from automated systems and has not been checked.

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 temperature anomaly maps are calculated with respect to the reference period 1961−1990. The rainfall decile maps are based on a reference period comprising all gridded analyses from 1900 to the present available at the time the deciles are calculated

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.