Queensland in September 2021: wet in the north; warm nights away from the coast

Rainfall was above average in the north, and in south-west and southern inland districts. Below average rainfall was reported in pockets of the central west, south-east inland and Fraser coast, but was close to average elsewhere.
 
Mean maximum temperatures were warmer than usual in the west and most of the south. Mean minimum temperatures were warmer than usual in the north and west.

Wet in the north, south-west and southern interior

  • Rainfall was above average in northern Queensland, and in south-west and southern inland districts; below average rainfall was reported in pockets of the central west, south-east inland and Fraser coast, and close to average elsewhere.
  • It was a wet start to the month in the northern tropics, with a surface and upper level disturbance generating moderate to locally heavy falls around the north tropical coast on the 1st and moderate falls in the north-west on the 2nd. A few sites had their highest September daily rainfall on record.
  • The passage of a cold front and surface trough saw showers and thunderstorms with moderate falls over the south-west on the 4th and the southern interior on the 5th. 
  • At the end of the month, a surface trough and upper level disturbance over inland Queensland generated storms and moderate falls in the central and southern interior, then the south-east on the 30th. Severe thunderstorms also brought giant hail to parts of southern and south-east Queensland on the 30th, with 6 centimetre hail reported on the western Darling Downs.
  • Some sites had their highest total September rainfall for at least 20 years.

Warm days in the west and most of the south

  • Queensland's mean temperature was 1.46 °C above the 1961-1990 average.
  • The mean maximum temperate was 1.27 °C above average, and the coolest since 2016.
  • There were some cool days during the month due to high pressure systems bringing settled and dry weather, and a few sites had their coldest September day (lowest maximum temperature) on record during the month.
  • The mean minimum temperature was 1.65 °C above average.
  • Minimum temperatures were mixed throughout the month, with some warmer and cooler than usual nights during September, but a cold burst saw below average nights across most of the state from the 22nd to 24th.
  • A cold night on the 22nd saw Middle Percy Island report its lowest September temperature on record.

Further information

Media
(03) 9669 4057

Extremes in September 2021
Hottest day 39.9 °C at Bedourie on the 28th
Warmest days on average 35.4 °C at Kowanyama Airport
Coolest days on average 19.3 °C at Applethorpe
Coldest day 12.2 °C at Applethorpe on the 21st
Coldest night -2.2 °C at Applethorpe on the 7th
Coolest nights on average 5.1 °C at Applethorpe
5.1 °C at Stanthorpe Leslie Parade
Warmest nights on average 25.0 °C at Coconut Island
Warmest night 27.9 °C at Urandangi Aerodrome on the 29th
Warmest on average overall 28.4 °C at Coconut Island
28.4 °C at Kowanyama Airport
Coolest on average overall 12.2 °C at Applethorpe
Wettest overall 266.0 mm at Mt Sophia
Wettest day 233.0 mm at Mt Sophia on the 1st
Strongest wind gust 89 km/h at Bougainville Reef on the 8th

Maps

Observed Anomaly Decile 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


Record highest September daily rainfall

New record
(mm)
Old
record
Years of
record
Camooweal Township 38.4 on the 2nd 36.3 on the 5th in 1947 130
Mulgrave Mill 89.0 on the 1st 74.4 on the 14th in 1953 77
Mt Sophia 233.0 on the 1st 88.0 on the 27th in 1988 54
Gereta Station 40.0 on the 2nd 20.1 on the 4th in 1936 34
Mareeba Airport 18.8 on the 1st 12.8 on the 19th in 2017 22



Highest September total rainfall for at least 20 years

Observed
(mm)
Most recent
higher
Average for
September
Moreton Telegraph Station 14.1 25.9 in 1947* 4.3
Mt Sophia 266.0 272.3 in 1972* 77.6
Mulgrave Mill 109.5 110.5 in 1936* 27.4
Kamilaroi Station 29.0 69.4 in 1978 3.8
Fort Constantine Station 34.0 73.8 in 1978* 6.9
Lockhart River Airport 27.4 75.8 in 1992* 15.2

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




Record lowest September daily maximum temperature

New record
(°C)
Old
record
Years of
record
Average for
September
Horn Island 27.2 on the 11th 27.6 on the 18th in 1997 27 30.1
Alva Beach 22.2 on the 22nd 23.2 on the 4th in 2004 25 26.9
Mareeba Airport 22.4 on the 7th = 22.4 on the 14th in 2006 22 28.8
Julia Creek Airport 22.0 on the 2nd 22.2 on the 5th in 2010 21 34.0



Record highest September daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
September
Cardwell Marine Pde 23.9 on the 30th 23.8 on the 3rd in 1992 65 16.4
Richmond Airport 23.8 on the 29th = 23.8 on the 15th in 2008 24 14.8
The Monument Airport 27.6 on the 29th 27.0 on the 26th in 2017 21 13.9



Record lowest September temperature

New record
(°C)
Old
record
Years of
record
Average for
September
Middle Percy Island 13.4 on the 22nd 14.1 on the 12th in 2011 21 18.4



Summary statistics for September 2021

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2021
Diff
from
average
Highest for
September
2021
Mean for
September
2021
Diff
from
average
Lowest for
September
2021
Total for
September
2021
Average
for
September
Rank of
September
2021
Fraction of
September
average
North Peninsula (district 27)
Coconut Island 31.8 +0.7 33.7 30th 25.0 +0.9 23.6 19th 10.8 7.1 high 152%
Coen Airport 31.1 -0.7 34.7 21st 19.8 +1.3 14.6 22nd 2.4 0.8 v high 300%
Horn Island 30.7 +0.6 31.9 30th 24.9 +1.0 23.6 25th 8.4 5.1 high 165%
Scherger RAAF 33.3 -1.0 39.3 7th 21.5 +1.5 17.3 18th 0.6 4.8 average 13%
Weipa Aero 34.4 0.0 37.1 30th 21.4 +1.5 17.0 18th 0.8 1.5 high 53%
South Peninsula (district 28)
Lockhart River Airport 28.9 -0.2 31.4 30th 23.1 +2.5 17.9 22nd 27.4 15.2 high 180%
Palmerville 34.3 +0.7 38.5 14th 16.7 +0.2 11.5 23rd 1.2 8.2 average 15%
Lower Carpentaria (district 29)
Burketown Airport 34.0 +0.4 38.2 26th 19.7 +1.2 15.7 24th 0.4 0.8 high 50%
Century Mine 34.2 -1.1 38.7 27th 19.4 +2.0 10.6 24th 0.2 2.6 average 8%
Cloncurry Airport 32.5 -0.6 38.2 28th 17.8 +1.3 14.2 22nd 15.4 6.3 high 244%
Julia Creek Airport 33.9 -0.1 39.7 28th 14.6 +0.1 4.9 23rd 23.2 5.1 v high 455%
Kowanyama Airport 35.4 +0.7 38.1 15th 21.4 +2.4 17.0 17th 0 2.4 lowest 0%
Lake Julius AWS 32.0   37.7 27th 18.0   11.7 24th 61.0


Mornington Island Airport 31.1   37.0 15th 22.0   17.3 24th 2.0


Mount Isa Aero 32.3 +0.9 38.9 28th 15.7 +1.5 6.0 24th 16.2 8.5 high 191%
Normanton Airport 34.9 +0.1 39.0 15th 21.5 +1.4 16.9 23rd 0 4.8 lowest 0%
Sweers Island 29.2 -0.4 31.2 21st 23.1 +1.0 19.3 22nd 1.8 4.5 high 40%
Upper Carpentaria (district 30)
Georgetown Airport 33.4 -0.2 37.4 14th 18.0 +1.1 12.1 20th 9.0 4.0 high 225%
Hughenden Airport 32.0 -0.4 36.7 27th 16.6 +1.3 8.7 22nd 0.4 7.6 average 5%
Richmond Airport 33.8 +0.4 38.6 28th 16.3 +1.5 7.8 23rd 7.6 3.8 high 200%
Barron North Coast (district 31)
Cairns Aero 29.1 +0.9 31.1 27th 20.1 +1.4 15.6 23rd 12.8 33.2 average 39%
Cairns Racecourse 27.7   31.3 14th 19.3   12.9 23rd 86.2


Cape Flattery 28.6 -0.4 30.3 30th 22.8 +0.6 20.0 22nd 8.0 6.9 high 116%
Cooktown Airport 28.8 0.0 31.0 30th 22.0 +1.2 14.2 22nd 16.6 8.9 high 187%
Low Isles Lighthouse 27.5 -1.1 31.5 29th 22.2 +0.3 20.2 24th 40.2 36.3 average 111%
Mareeba Airport 27.7 -1.1 32.5 14th 16.5 +1.1 12.0 23rd 19.0 5.0 high 380%
Walkamin Research Station 26.0 -1.2 31.0 13th 15.5 +0.7 10.2 23rd 18.5 8.8 high 210%
Herbert North Coast (district 32)
Cardwell Marine Pde 26.9 -0.7 28.5 19th 18.6 +2.2 11.7 23rd 17.6 38.1 average 46%
Cowley Beach (Defence) 26.5   29.1 29th 19.6   14.7 22nd 36.6


Innisfail Aerodrome 26.7   29.4 14th 17.4   10.3 23rd 129.8


Mount Stuart (Defence) 27.8   34.7 14th 17.6   14.1 23rd 16.6


South Johnstone Exp Stn 26.5 -0.6 29.8 14th 18.6 +1.9 12.8 23rd 122.8 84.5 high 145%
Townsville Aero 27.7 -0.1 35.0 21st 18.1 +0.7 10.3 23rd 7.2 10.1 high 71%
Townsville- Air Weapons Range (Defence) 27.5   34.8 14th 15.8   9.2 23rd 8.6


East Central Coast (district 33)
Alva Beach 25.7 -1.2 32.8 21st 18.5 -0.5 12.3 23rd 60.2 17.4 v high 346%
Ayr DPI Research Stn 27.5 -0.7 34.1 14th 16.3 +1.2 9.7 23rd 4.0 9.6 average 42%
Bowen Airport AWS 27.2   33.7 21st 16.5   10.1 23rd 9.6


Collinsville Post Office 29.3 -0.5 34.7 14th 15.5 +1.9 7.6 23rd 6.8 11.1 average 61%
Hamilton Island Airport 24.6 -0.7 28.1 30th 19.8 -0.3 16.1 22nd 11.0 26.5 average 42%
Mackay Aero 25.9 -0.1 31.0 21st 14.7 -0.1 8.8 22nd 5.6 23.1 average 24%
Mackay M.O 25.2 -0.2 29.7 30th 16.8 0.0 11.9 23rd 6.6 19.3 average 34%
Ooralea Racecourse (Mackay Turf Club) 25.3   32.6 21st 14.3   9.1 23rd 5.6


Proserpine Airport 27.0 -1.5 34.6 21st 14.3 -0.1 7.4 23rd 14.0 18.0 average 78%
Samuel Hill Aero 25.4 -0.8 29.5 21st 11.9 -0.4 5.7 15th 33.8 40.5 average 83%
St Lawrence 26.9 -0.4 32.6 21st 13.5 -1.1 8.5 16th 31.2 21.4 average 146%
Townsville- Fanning River (Defence) 28.2   34.5 14th 15.2   9.0 23rd 7.4


Williamson 26.9 -0.5 31.3 21st 12.6 -1.3 5.7 15th 1.4 15.4 average 9%
Woolshed 24.2 -1.6 30.1 21st 14.8 -0.5 7.9 23rd 23.4 13.9 high 168%
Yeppoon The Esplanade 24.0 -0.4 28.7 21st 15.9 +0.1 10.4 16th 32.4 33.0 average 98%
West Central Coast (district 34)
Charters Towers Airport 29.8 -0.6 34.4 14th 13.9 -1.4 7.7 23rd 1.6 8.7 average 18%
Moranbah Airport 28.1   32.0 13th 12.5   5.7 23rd 21.8 9.7 high 225%
Central Highlands (district 35)
Blackwater Airport 28.4   33.1 13th 13.1   5.6 22nd 6.0


Clermont Airport 28.5 -1.0 33.5 13th 11.3 -0.4 2.4 23rd 2.6 25.8 average 10%
Emerald Airport 29.2 0.0 35.6 13th 13.7 +0.1 8.9 23rd 11.4 25.1 average 45%
Lochington 29.2 0.0 35.1 13th 11.1 -0.2 2.7 7th 15.2 22.9 average 66%
Rolleston Airport 28.6 +0.2 34.6 13th 11.4 +0.2 4.6 23rd 4.8 36.1 average 13%
Springsure Comet St 28.2 +0.6 33.6 13th 12.3 +1.0 3.6 22nd 7.2 29.8 average 24%
Tambo Post Office 27.9 +0.4 32.6 20th 10.1 +1.0 1.0 22nd 3.0 21.5 average 14%
Taroom Post Office 27.9 +0.9 33.0 25th 11.2 +0.7 2.7 23rd 30.2 31.8 average 95%
Central Lowlands (district 36)
Barcaldine Post Office 29.7 +0.9 34.0 26th 15.0 +1.6 8.0 22nd 0 16.6 lowest 0%
Blackall Airport 29.3 -0.2 34.2 20th 13.3 +0.8 3.5 22nd 7.4 25.2 average 29%
Isisford Post Office 30.1 +0.7 35.2 17th 13.1 +0.9 4.1 22nd 12.4 15.5 high 80%
Longreach Aero 31.3 +0.9 36.3 27th 14.9 +2.2 6.9 22nd 3.2 11.5 average 28%
Upper Western (district 37)
Camooweal Township 33.0 +0.6 39.2 28th 16.3 +1.1 7.2 23rd 40.0 6.7 v high 597%
Carters Bore 31.8   38.5 28th 18.4   11.2 22nd 16.4


New May Downs 31.6   38.1 28th 17.7   11.5 22nd 17.6


The Monument Airport 32.0 +0.4 39.8 28th 14.3 +0.4 6.4 23rd 0.6 9.4 average 6%
Trepell Airport 31.9 0.0 39.0 28th 14.8 +0.3 6.0 22nd 12.6 6.9 high 183%
Urandangi Aerodrome 32.6   38.9 17th 13.8   5.0 23rd 2.8 10.8 high 26%
Winton Airport 32.6 +0.5 38.4 28th 15.0 +0.7 8.4 15th 0 12.1 v low 0%
Lower Western (district 38)
Bedourie 30.7 +0.6 39.9 28th 13.9 +0.6 6.9 22nd 0 9.3 lowest 0%
Birdsville Airport 29.5 -0.2 38.4 17th 13.1 -0.2 5.5 22nd 8.8 7.9 high 111%
Boulia Airport     37.2 30th 15.4 +1.7 8.9 22nd 7.0 7.9 average 89%
Windorah Airport 29.8   37.5 17th 14.7   7.1 22nd 0.4


Port Curtis South Coast (district 39)
Bundaberg Aero 25.7 0.0 29.0 25th 13.2 -0.5 8.7 15th 13.2 34.4 average 38%
Gayndah Airport 27.9 -0.2 33.2 13th 11.1 -0.4 3.9 8th 7.2 27.2 low 26%
Gladstone Airport 25.5 -0.7 28.9 21st 15.2 -0.4 11.0 16th 16.4 26.0 average 63%
Gladstone Radar 26.3 -0.3 29.9 13th 16.6 0.0 10.9 22nd 25.0 26.5 average 94%
Lady Elliot Island 24.7 +0.9 27.0 30th 18.7 -0.1 14.2 22nd 9.2 38.1 low 24%
Rockhampton Aero 27.8 +0.3 32.6 13th 13.9 +0.1 8.3 16th 20.0 23.9 average 84%
Rundle Island 23.0 -0.1 28.6 21st 18.9 -0.4 13.6 22nd



Thangool Airport 28.1 -0.1 32.9 13th 8.8 -1.1 1.8 8th 12.6 24.8 average 51%
Moreton South Coast (district 40)
Amberley AMO 26.5 +0.8 32.8 25th 8.6 -0.9 0.6 8th 19.6 32.6 average 60%
Archerfield Airport 25.8 +0.5 31.2 25th 11.5 +0.3 6.5 8th 10.2 34.3 low 30%
Beaudesert Drumley Street 25.9 -0.5 31.5 13th 9.7 -0.3 3.6 15th 19.0 33.3 average 57%
Beerburrum Forest Station 25.6 -0.4 32.8 13th 11.5 -0.5 5.9 15th 10.8 45.9 low 24%
Brisbane 25.2 -0.5 30.1 10th 13.7 -0.2 9.8 8th 10.8 26.6 low 41%
Brisbane Aero 24.0 -0.2 26.6 19th 13.0 +0.1 8.0 15th 14.8 31.1 average 48%
Canungra (Defence) 24.4   30.1 25th 7.9   1.4 15th 29.4


Cape Moreton Lighthouse 22.4 +0.8 24.2 25th 16.6 +0.6 11.9 22nd 18.0 63.4 low 28%
Coolangatta 24.0 +0.6 28.5 25th 14.0 +0.7 6.8 11th 49.0 39.6 average 124%
Double Island Point Lighthouse 23.8 +1.0 27.8 13th 16.9 +0.2 11.7 22nd 11.0 49.4 low 22%
Gold Coast Seaway 24.0 0.0 29.9 25th 15.0 +0.2 9.2 11th 41.0 41.2 average 100%
Greenbank (Defence) 26.1   32.5 25th 8.8   2.0 22nd 15.2


Gympie 26.2 +0.1 32.1 13th 10.1 -0.2 3.0 8th 17.2 44.4 low 39%
Hervey Bay Airport 24.7 -0.3 27.6 21st 12.8 -1.2 6.5 15th 5.8 35.1 low 17%
Kingaroy Airport 24.4 -0.7 29.4 25th 7.2 -0.9 0.5 23rd 5.8 25.2 low 23%
Logan City Water Treatment Plant 25.4 +0.2 31.2 25th 12.4 -0.2 7.6 22nd 17.4 38.2 low 46%
Maryborough 25.7 0.0 29.5 25th 11.5 -0.6 6.1 15th 15.8 41.8 low 38%
Nambour Daff - Hillside 25.2 -0.3 31.8 13th 12.9 -0.5 7.5 8th 19.8 47.5 low 42%
Rainbow Beach 24.1 -0.2 28.4 13th      
12.7 55.9 low 23%
Redcliffe 23.8 -0.3 28.4 13th 14.2 -0.3 9.6 15th 25.2 36.3 average 69%
Redland (Alexandra Hills) 23.6   27.4 10th 13.0   7.6 22nd 15.4


Sunshine Coast Airport 24.1 -0.3 30.0 13th 12.3 -0.7 4.9 15th 9.4 51.7 low 18%
Tewantin RSL Park 24.2 -0.2 31.5 13th 14.1 -0.4 8.7 15th 23.0 55.8 low 41%
Tin Can Bay (Defence) 24.7   30.3 25th 12.3   5.9 22nd 17.8


University of Queensland Gatton 26.3 +0.7 33.3 25th 9.3 -0.2 2.4 8th 12.2 34.4 low 35%
East Darling Downs (district 41)
Applethorpe 19.3 +0.1 24.4 20th 5.1 -0.7 -2.2 7th 29.8 40.5 average 74%
Dalby Airport 25.0 -0.7 30.8 25th 7.9 -0.8 0.4 8th 9.6 27.0 average 36%
Goondiwindi Airport 24.5   30.3 20th 8.6   1.8 8th 3.6


Oakey Aero 24.5 +0.4 30.5 20th 6.7 -0.6 -1.8 8th 13.8 29.5 average 47%
Stanthorpe Leslie Parade 20.2 +0.4 25.4 1st 5.1 0.0 -2.0 22nd 19.2 50.1 low 38%
Texas Post Office 23.9 -0.7 29.0 25th 7.5 -0.4 0.7 22nd 34.8 39.2 average 89%
Toowoomba Airport 21.3 -1.1 27.0 20th 9.6 -1.0 2.3 22nd 14.0 32.4 low 43%
Warwick 23.1 -0.6 28.2 20th 5.9 -1.2 -0.9 8th 18.0 32.2 average 56%
West Darling Downs (district 42)
Miles Constance Street 26.1 -0.6 31.5 25th 9.2 -0.8 0.3 23rd 13.4 25.1 average 53%
Maranoa (district 43)
Injune Post Office 27.0 +0.7 32.5 20th 8.1 -0.2 0.5 23rd 42.8 26.7 high 160%
Mitchell Post Office 27.8 +1.9 32.9 20th 7.9 +0.3 -0.1 8th 43.6 26.9 high 162%
Roma Airport 27.1 +0.3 33.8 20th 8.3 -1.0 -0.5 7th 20.4 25.2 average 81%
St George Airport 26.3 -0.3 32.2 20th 10.3 -0.4 3.2 22nd 19.8 24.9 average 80%
Surat 26.5 +0.7 32.7 20th 9.4 -0.1 1.0 8th 39.4 29.0 high 136%
Warrego (district 44)
Bollon Mary St 26.8 +1.1 32.2 12th 11.0 +1.6 4.8 6th 24.6 24.1 average 102%
Charleville Aero 27.6 +1.4 32.7 17th 11.3 +1.3 3.9 8th 42.2 23.8 high 177%
Cunnamulla Post Office 27.5 +1.8 32.2 17th 12.1 +1.3 6.3 14th 24.4 18.2 high 134%
Far Southwest (district 45)
Ballera Gas Field 27.9 -0.2 36.0 28th 13.2 0.0 5.6 22nd 16.4 12.1 high 136%
Thargomindah Airport 27.5 -0.2 34.8 17th 12.3 -0.4 5.8 14th 5.8 11.0 average 53%
Offshore Islands (district 200)
Bougainville Reef 25.5   26.2 1st 23.5   19.9 9th



Cato Island 23.2   26.0 14th 19.8   17.7 22nd



Creal Reef 23.4   25.2 13th 21.1   17.1 22nd



Flinders Reef 24.8   26.8 30th 22.7   20.3 23rd



Frederick Reef 23.2   27.2 13th 21.1   18.2 22nd



Gannet Cay     25.0 29th 20.5   17.3 23rd



Holmes Reef 25.5   26.7 14th 23.3   21.2 7th



Lihou Reef Lighthouse 25.1   26.3 30th 23.0   20.5 8th



Marion Reef 24.2   27.7 13th 21.9   19.4 23rd



Middle Percy Island 23.4 -0.4 27.7 21st 18.0 -0.4 13.4 22nd 6.2 26.6 average 23%
Willis Island 27.6 +0.2 29.3 30th 23.3 +0.7 20.7 8th 15.8 16.0 high 99%

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 10 pm on Monday 4 October 2021. 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

Climate