Queensland in September 2018: warm in the east, very dry overall

Rain for the month was confined to the southeast corner of the State and in pockets along the east coast away from the peninsula, but a very dry month overall. Daytime temperatures were above average over much of the State and overnight temperatures were slightly warmer than average overall.

Dry month for most of Queensland except for the southeast

  • Total rainfall for the State was about 79% below the long-term average
  • Just over 70% of the State received below to very much below average rainfall for the month
  • Some sites along the north tropical coast reported their driest September rainfall for at least 20 years
  • Alva Beach in the Central Coast district recorded only 0.2 mm in total, which was its lowest September rainfall total on 20 years of record
  • Moist onshore winds, as a result of a complex area of low pressure, caused some moderate falls along the mid tropical coast and adjacent inland regions on the 3rd
  • From the 25th, a high pressure ridge and persistent upper level trough along the east coast, combined with an onshore flow, generated severe thunderstorms and moderate to heavy falls in the southeast. Some locations reported falls in excess of 40 mm
  • Coomera Foxwell Road station had its wettest September since 1998

Warm days across most of Queensland

  • Daytime temperatures were warmer than average across much of the State and very much above average around the North Tropical Coast; Central Highlands and Coalfields; Gulf Country; and Maranoa and Warrego districts
  • Averaged across the State, daytime temperatures were 1.50 °C above the long-term average
  • The state-wide mean temperature (average of maximum and minimum temperature) was 0.82 °C above the long-term average
  • Warm air ahead of a cold front moving across the southeast corner of the country around the 15th, and many sites in southern inland, saw their warmest September day followed by their coolest day around the 17th as the cooler air spread over the State once the system passed
  • Cool nights and warm days were consistent through the month as high pressure dominated the weather patterns delivering generally clear conditions
  • Innisfail saw its coldest September mean daily minimum temperature for at least 20 years
  • Overnight temperatures were close to average for September, but cooler than average conditions were experienced through inland northern and southwest regions

Severe thunderstorms in the last week

  • Numerous severe thunderstorms impacted the southeast during the last week of the month and produced heavy rain and hail between 2 cm and 4 cm in diameter
  • Severe thunderstorms produced heavy rainfall, small hail and strong winds up to 72 km/h around Bundaberg on the 30th

Further information

Media
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Extremes in September 2018
Hottest day 37.8 °C at Urandangi Aerodrome on the 30th
Warmest days on average 35.4 °C at Kowanyama Airport
Coolest days on average 20.4 °C at Applethorpe
Coldest day 13.8 °C at Applethorpe on the 4th
Coldest night -1.1 °C at Injune Post Office on the 17th
Coolest nights on average 6.9 °C at Applethorpe
Warmest nights on average 23.9 °C at Horn Island
Warmest night 25.2 °C at Horn Island on the 22nd
Warmest on average overall 28.5 °C at Coconut Island
Coolest on average overall 13.7 °C at Applethorpe
Wettest overall 117.2 mm at Caloundra Airport
Wettest day 60.0 mm at Caloundra Airport on the 25th
Strongest wind gust 91 km/h at Cape Moreton Lighthouse on the 4th and 30th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Highest September total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
September
Coomera Foxwell Road 100.0 200.2 in 1998 47.6



Record lowest September total rainfall
New record
(mm)
Old
record
Years of
record
Average for
September
Alva Beach 0.2 0.6 in 2003 21 15.6

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported


Lowest September total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
September
Tully Sugar Mill 4.2 0.0 in 1991 111.3
Lucinda Point 0.2 0.0 in 1991* 25.5
Greenhaven 8.8 3.8 in 1996 65.0

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Lowest September mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
September
Innisfail 16.8 16.0 in 1996 17.0



Summary statistics for September 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2018
Diff
from
average
Highest for
September
2018
Mean for
September
2018
Diff
from
average
Lowest for
September
2018
Total for
September
2018
Average
for
September
Rank of
September
2018
Fraction of
September
average
North Peninsula (district 27)
Coconut Island 33.3 +2.3 34.1 30th 23.8 -0.4 23.0 5th 1.4 7.3 low 19%
Coen Airport 31.8 -0.1 34.9 16th 17.3 -1.3 12.9 17th 0 0.7 v low 0%
Horn Island 30.2 +0.1 31.4 20th 23.9 0.0 20.4 17th 0 5.2 lowest 0%
Scherger RAAF 34.4 0.0 36.3 17th 19.0 -1.2 17.2 17th 0 5.8 v low 0%
Weipa Aero 34.8 +0.4 36.4 17th 19.4 -0.5 17.5 9th 0 1.6 lowest 0%
South Peninsula (district 28)
Lockhart River Airport 29.9 +0.8 30.9 13th 21.0 +0.5 16.4 17th 2.0 15.0 low 13%
Palmerville 34.8 +1.2 37.1 16th 14.4 -2.2 11.4 30th 0 8.4 lowest 0%
Lower Carpentaria (district 29)
Burketown Airport 33.8 +0.2 37.2 2nd 17.3 -1.2 12.8 6th 0 0.9 v low 0%
Century Mine 35.1 -0.2 37.3 30th 16.5 -0.8 10.1 18th 0 3.0 v low 0%
Cloncurry Airport 32.8 -0.3 36.6 29th 15.9 -0.6 8.6 18th 0 6.3 lowest 0%
Julia Creek Airport 33.6 -0.4 37.6 30th 14.5 +0.1 7.9 5th 0 3.1 v low 0%
Kowanyama Airport 35.4 +0.7 37.7 21st 18.6 -0.5 13.9 5th 0.6 2.5 high 24%
Lake Julius AWS 33.1   36.2 30th 16.8   9.9 18th 0
Mornington Island Airport 30.9   33.3 18th 20.8   16.5 18th 1.2
Mount Isa Aero 32.4 +1.0 36.0 30th 14.1 -0.1 5.5 18th 0 8.2 lowest 0%
Normanton Airport 34.7 0.0 37.0 21st 19.2 -1.0 13.4 6th 0 5.6 v low 0%
Sweers Island 29.6 -0.1 33.6 2nd 21.7 -0.4 17.8 18th 0 5.0 lowest 0%
Upper Carpentaria (district 30)
Georgetown Airport 33.4 -0.2 35.7 20th 15.4 -1.6 8.7 5th 0 4.2 v low 0%
Hughenden Airport 31.8 -0.6 35.7 30th 15.2 -0.2 7.4 17th 0 8.3 v low 0%
Richmond Airport 33.1 -0.2 37.2 30th 13.7 -1.1 7.3 5th 0 3.4 lowest 0%
Richmond Post Office 32.3 0.0 35.5 27th 14.1 +0.1 7.4 5th 0 6.3 lowest 0%
Barron North Coast (district 31)
Cairns Aero 29.5 +1.4 31.9 3rd 18.1 -0.6 14.1 4th 7.6 33.2 low 23%
Cairns Racecourse 29.3   31.3 17th 16.6   12.8 4th 13.2
Cape Flattery 29.2 +0.2 29.9 12th 21.9 -0.3 18.7 4th 2.2 6.2 average 35%
Low Isles Lighthouse 29.4 +0.8 31.7 16th 22.1 +0.2 20.0 23rd 13.8 36.4 average 38%
Mareeba Airport 29.2 +0.4 33.0 16th 14.9 -0.6 10.9 28th 0 4.7 v low 0%
Walkamin Research Station 27.5 +0.3 31.0 16th 14.0 -0.8 10.8 4th 0.8 8.6 low 9%
Herbert North Coast (district 32)
Cardwell Marine Pde 27.6 0.0 29.7 30th     14.0 17th 2.2 38.5 low 6%
Cowley Beach (Defence) 28.1   29.6 29th 17.5   12.5 4th 9.4
Innisfail 27.4 +0.7 29.3 16th 16.8 -0.2 13.5 4th 23.6 85.9 low 27%
Innisfail Aerodrome 28.6   31.0 16th 14.4   10.4 4th 27.0
Lucinda Point 25.4 -0.4 27.6 9th 20.8 -0.1 17.4 4th 0.2 25.5 v low 1%
Mount Stuart (Defence) 29.5   35.5 2nd 18.1   16.3 11th 0.4
South Johnstone Exp Stn 27.8 +0.7 31.1 16th 16.3 -0.4 12.0 4th 30.0 83.9 low 36%
Townsville Aero 28.8 +1.0 33.9 9th 17.3 -0.1 13.2 3rd 16.0 10.3 high 155%
Townsville- Air Weapons Range (Defence) 29.7   34.0 16th 14.9   10.0 4th 2.8
East Central Coast (district 33)
Alva Beach 26.9 -0.1 29.8 2nd 18.8 -0.2 15.2 16th 0.2 15.6 lowest 1%
Ayr DPI Research Stn 29.2 +1.1 34.5 2nd 15.6 +0.5 13.3 16th 1.0 10.0 average 10%
Bowen Airport AWS 28.5   32.5 2nd 16.7   13.3 16th 0.2
Collinsville Post Office 31.6 +1.9 34.1 30th 13.0 -0.7 9.5 11th 0 11.4 lowest 0%
Hamilton Island Airport 25.6 +0.2 29.4 2nd 20.4 +0.2 17.6 5th 32.0 28.8 high 111%
Mackay Aero 27.3 +1.3 33.9 2nd 15.4 +0.7 10.1 3rd 23.2 24.7 high 94%
Mackay M.O 26.2 +0.8 29.9 2nd 17.3 +0.6 13.8 3rd 16.6 19.9 average 83%
Ooralea Racecourse (Mackay Turf Club) 26.3   33.3 2nd 14.5   9.8 3rd 55.0
Proserpine Airport 29.0 +0.5 35.2 2nd 14.2 -0.3 9.4 3rd 6.0 18.8 average 32%
Samuel Hill Aero 26.2 0.0 30.5 16th 11.9 -0.4 8.3 10th 6.8 43.2 low 16%
St Lawrence 28.1 +0.9 32.7 2nd 14.2 -0.6 8.6 2nd 0.4 22.3 low 2%
Townsville- Fanning River (Defence) 30.2   33.7 16th 14.6   11.6 4th 0
Williamson 28.0 +0.8 31.6 2nd 13.5 -0.6 7.4 10th 0 17.1 v low 0%
Yeppoon The Esplanade 24.4 0.0 29.3 20th 17.2 +1.5 12.5 2nd 11.6 34.9 average 33%
West Central Coast (district 34)
Charters Towers Airport 31.1 +0.8 33.8 16th 14.8 -0.5 12.0 11th 0 9.4 lowest 0%
Moranbah Airport 31.0   34.0 16th 12.9   8.9 2nd 0
Central Highlands (district 35)
Blackwater Airport 30.0   32.8 30th 13.7   8.3 2nd 1.2
Clermont Airport 30.5   33.9 20th 11.9   4.3 10th 0
Emerald Airport 30.3 +1.3 33.9 28th 14.0 +0.5 10.3 2nd 0.4 27.2 low 1%
Lochington 30.2   33.1 28th 11.8   4.2 10th 0
Rolleston Airport 28.9   32.6 28th 11.5   4.2 17th 14.4
Springsure Comet St 28.6 +1.0 31.6 28th 11.1 -0.2 5.5 11th 7.4 30.2 average 25%
Tambo Post Office 28.8 +1.4 33.0 29th 10.4 +1.3 2.8 17th 4.6 21.8 average 21%
Taroom Post Office 28.9 +2.0 33.6 29th 11.1 +0.6 1.8 17th 3.4 32.0 low 11%
Central Lowlands (district 36)
Barcaldine Post Office     34.5 30th 14.5 +1.1 7.8 17th 0 16.6 lowest 0%
Blackall Airport 29.8 +0.4 34.1 29th 12.5 +0.1 3.5 10th 0 26.2 v low 0%
Isisford Post Office 30.8 +1.5 35.6 28th 12.2 0.0 4.4 17th 0.2 15.3 average 1%
Longreach Aero 31.2 +0.9 35.7 28th 13.0 +0.4 6.7 5th 0 11.7 lowest 0%
Upper Western (district 37)
Camooweal Township 33.9 +1.5 37.4 30th 15.2 0.0 6.7 10th 0 6.4 lowest 0%
Carters Bore 31.7   35.5 30th 16.9   10.7 5th 0
New May Downs 32.0   35.5 29th 16.3   11.0 17th 0
The Monument Airport 31.7 +0.2 36.6 29th 11.8 -2.3 4.0 17th 0 9.8 v low 0%
Trepell Airport 31.5 -0.4 36.7 30th 13.1 -1.5 6.2 18th 0 6.4 v low 0%
Urandangi Aerodrome 32.4   37.8 30th 11.9   4.3 17th 0
Winton Airport 31.9 -0.1 36.4 30th 12.8 -1.6 6.3 5th 0 13.3 v low 0%
Lower Western (district 38)
Birdsville Airport 28.3 -1.4 35.9 28th 11.1 -2.4 5.1 17th 0 8.2 v low 0%
Boulia Airport 31.1 +0.9 37.3 29th 13.9 +0.2 8.1 17th 0 7.9 lowest 0%
Windorah Airport 29.8   36.0 28th 12.1   6.6 17th 0
Port Curtis South Coast (district 39)
Bundaberg Aero 27.0 +1.4 31.5 20th 13.3 -0.4 8.6 10th 6.6 35.6 low 19%
Gayndah Airport 28.4 +0.5 31.7 29th 10.9 -0.6 5.3 10th 29.0 31.1 average 93%
Gladstone Airport 26.5 +0.4 31.5 20th 15.6 0.0 11.9 2nd 0.6 27.4 low 2%
Gladstone Radar 27.8 +1.2 31.4 16th 17.0 +0.5 15.2 10th 1.0 26.5 low 4%
Lady Elliot Island 25.1 +1.3 26.9 30th 18.9 +0.1 14.6 15th 20.0 38.8 average 52%
Rockhampton Aero 29.0 +1.5 33.5 16th 15.0 +1.2 11.2 10th 5.2 24.4 average 21%
Sandy Cape Lighthouse 24.8 +0.5 26.4 30th 17.7 +0.8 15.6 21st 9.8 50.3 low 19%
Seventeen Seventy 24.6 +0.4 27.0 30th 17.2 +0.1 14.6 3rd 5.0 35.2 low 14%
Thangool Airport 29.1 +1.0 31.8 30th 9.4 -0.4 4.2 10th 16.4 25.3 average 65%
Moreton South Coast (district 40)
Amberley AMO 27.0 +1.4 32.4 15th 9.5 0.0 5.1 2nd 9.6 33.3 low 29%
Archerfield Airport 25.5 +0.2 29.7 20th 11.8 +0.7 8.6 22nd 23.6 35.2 average 67%
Beaudesert Drumley Street 25.9 -0.2 30.8 15th 10.5 +0.6 5.7 2nd 68.0 36.0 high 189%
Beerburrum Forest Station 25.2 -0.8 30.5 20th 11.3 -0.7 7.6 10th 27.2 47.2 average 58%
Brisbane 24.9 -0.8 28.9 29th 13.9 +0.1 12.1 11th 15.6 29.4 average 53%
Brisbane Aero 23.4 -0.8 27.2 20th 12.9 0.0 10.0 2nd 42.4 33.7 high 126%
Canungra (Defence) 24.3   29.2 15th 8.5   4.5 2nd 53.4
Cape Moreton Lighthouse 22.3 +0.8 24.8 20th 16.9 +0.9 14.4 4th 62.0 64.4 average 96%
Coolangatta 23.1 -0.3 26.0 1st 13.7 +0.4 7.4 2nd 56.8 40.3 high 141%
Double Island Point Lighthouse 24.1 +1.4 30.9 20th 17.3 +0.7 15.3 6th 30.6 50.0 average 61%
Gold Coast Seaway 23.5 -0.5 26.9 1st 14.7 -0.1 11.2 2nd 56.6 42.6 high 133%
Greenbank (Defence) 25.5   29.8 29th 9.7   4.8 2nd 11.4
Gympie 26.6 +0.5 32.2 20th 10.4 +0.1 4.4 10th 12.6 45.0 low 28%
Hervey Bay Airport 25.2 +0.3 26.7 9th 13.1 -1.0 7.4 2nd 8.2 36.4 low 23%
Kingaroy Airport 24.9 -0.1 29.4 15th 8.2 +0.1 2.0 2nd 8.0 28.0 low 29%
Logan City Water Treatment Plant 24.1 -1.1 28.4 29th 12.8 +0.3 10.2 18th 27.1 40.8 average 66%
Maryborough 27.1 +1.4 32.7 20th 11.4 -0.7 6.9 2nd 10.2 42.2 low 24%
Nambour Daff - Hillside 24.6 -0.9 31.8 20th 12.8 -0.6 8.6 10th 35.8 51.4 average 70%
Point Lookout 23.9 -0.1 26.8 14th 16.5 -0.1 13.4 4th 111.0 57.8 high 192%
Rainbow Beach 24.6 +0.3 31.1 20th       23.4 57.1 low 41%
Redcliffe     27.0 29th 14.2 -0.3 12.0 2nd 41.6 39.8 average 105%
Redland (Alexandra Hills) 22.9   26.1 1st 13.0   9.8 2nd 42.8
Sunshine Coast Airport 23.9 -0.5 29.9 16th 12.9 0.0 7.8 2nd 39.8 54.9 average 72%
Tewantin RSL Park 23.8 -0.6 32.3 20th 14.4 -0.1 9.9 2nd 73.6 57.8 high 127%
Tin Can Bay (Defence) 24.8   31.2 20th 13.3   8.0 2nd 32.8
University of Queensland Gatton 26.8 +1.2 32.1 29th 9.0 -0.5 4.1 10th 13.2 34.8 low 38%
East Darling Downs (district 41)
Applethorpe 20.4 +1.3 25.8 15th 6.9 +1.1 0.8 9th 10.4 42.3 low 25%
Dalby Airport 26.3 +0.7 31.0 15th 8.6 -0.1 1.4 10th 3.2 29.4 v low 11%
Oakey Aero 25.2 +1.2 30.6 15th 8.9 +1.7 0.4 10th 9.2 31.0 low 30%
Stanthorpe Leslie Parade 21.2 +1.5 26.1 15th 7.1 +2.0 0.1 9th 11.6 51.0 low 23%
Texas Post Office 25.4 +0.9 31.1 15th 10.0 +2.1 3.6 21st 14.6 39.8 low 37%
Toowoomba Airport 22.5 +0.2 28.2 15th 10.5 -0.1 6.2 21st 16.6 35.6 low 47%
Warwick 23.9 +0.4 29.5 15th 8.7 +1.6 1.8 2nd 16.4 34.6 low 47%
West Darling Downs (district 42)
Miles Constance Street 26.9 +0.3 32.0 29th 10.0 0.0 -0.7 17th 8.0 26.1 low 31%
Maranoa (district 43)
Injune Post Office 27.8 +1.6 32.7 28th 8.8 +0.6 -1.1 17th 3.0 26.6 low 11%
Mitchell Post Office 28.0 +2.2 35.2 28th 8.1 +0.6 -0.9 17th 4.9 26.9 low 18%
Roma Airport 27.6 +0.9 33.6 28th 9.2 -0.1 -1.0 17th 6.6 25.9 average 25%
St George Airport 27.0 +0.5 33.3 15th 11.2 +0.6 2.6 17th 1.0 26.5 low 4%
Surat 27.1 +1.4 33.2 28th 11.1 +1.7 2.9 17th 13.2 29.1 average 45%
Warrego (district 44)
Charleville Aero 28.2 +2.1 34.4 28th 10.3 +0.4 4.6 10th 0.2 23.9 v low 1%
Cunnamulla Post Office 27.3 +1.6 34.2 15th 10.8 +0.1 4.0 17th 0.4 18.3 low 2%
Far Southwest (district 45)
Ballera Gas Field 27.4 -0.7 34.0 28th 11.7 -1.5 5.5 17th 0 10.3 v low 0%
Thargomindah Airport     34.5 28th 11.4 -1.3 5.8 9th 0.4 10.2 low 4%
Offshore Islands (district 200)
Middle Percy Island 24.2 +0.5 27.3 2nd 18.6 +0.2 16.4 5th 6.0 29.7 average 20%
Willis Island 27.5 +0.1 28.5 9th 23.0 +0.4 20.4 24th 1.6 16.2 low 10%

Notes

The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Queensland using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 8 am on Tuesday 2 October 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites 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.
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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries