Monday, 2 November 2009 - Monthly Climate Summary for Queensland - Product code IDCKGC24R0

Queensland in October 2009

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

Rainfall

Rainfall overall was below the long term average across most of the state. Only parts of the southern and central interior, and the western Peninsula received above average rainfall.

Area averaged across the state and based on records since 1900, the October rainfall was 12.62 mm. The long term average for October is 26.18 mm

The first significant rainfall occurred on the 4th, where isolated afternoon showers and thunderstorms over the interior of Cape York Peninsula produced some locally heavy falls and high wind gusts. At 9am on the 5th, Scherger RAAF recorded 66 mm and Weipa recorded 39 mm. Weipa also recorded a maximum wind gust of 120km/hr, which was the strongest recorded wind gust for October.

An upper trough over south east Queensland produced some patchy thundery rain about the south east corner on the 11th, with daily totals ranging from 20 mm to 30 mm. 

An eastward moving trough lying over the south western districts brought isolated showers and thunderstorms to the south east interior and coast on the 12th. Showers and gusty thunderstorms also occurred in the central districts and over the south eastern corner of the state on the 13th. Small hail was reported at Toowoomba, and at some Brisbane and Gold Coast suburbs. Wind gusts exceeded 90km/hr in Brisbane and bay side suburbs.

On the 18th, some isolated showers occurred along parts of the east coast, with isolated thunderstorms over the south east corner. Fresh to strong onshore south easterly winds produced falls of around 40 mm in the south east, and around 60 mm in the exposed central and north coast areas.

The combination of a surface trough extending from the Northern Territory into south east Queensland, and an upper level trough located over the southern interior on the 26th, resulted in a thundery rainband over parts of the southern and south east interior, and the south east corner of the state. Rainfall totals ranged from around 10 mm to 20 mm in the Maranoa and Warrego, the Darling Downs and in southern coastal areas. Around 30 mm to 60 mm fell over the Wivenhoe and Somerset dams, with totals increasing to around 80 mm to 100 mm in the Pine and Caboolture areas. 

From the 27th to 29th numerous thunderstorms continued to develop over the state's interior east of the surface trough that extended from the Gulf to the southern interior. Three day rainfall totals ranged from 20 mm to 70 mm over the Maranoa and Warrego, the Central West and the Central Highlands districts. Some stations had their highest October daily rainfall on record and their highest total October rainfall on record.  A high pressure system over the Tasman Sea directed an easterly flow that also generated isolated showers over the east coast, and rain areas along the tropical east coast. Three day rainfall totals ranged from around 80 mm to 160 mm in the area.

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

Maximum temperature

Mean maximum temperatures were generally above the long term average in the eastern half of the state, and below average in the west. Area averaged across the state, and based on records since 1950, the maximum temperature was 32.25°C, while the long term average is 31.99°C.

Some sites had their highest October mean daily maximum temperature on record.

The hottest day was 41.5°C at Birdsville Airport on the 24th, followed by 41.0°C at Bedourie Police Station on the 25th, followed by 40.9°C at Thargomindah Airport on the 22nd.

The warmest days on average were 36.9°C at Kowanyama Airport, followed by 36.7°C at Normanton Airport, followed by 36.4°C at Century Mine, followed by 36.4°C at Croydon Township.

The coolest days on average were 23.2°C at Applethorpe, followed by 23.9°C at Stanthorpe Leslie Parade, followed by 24.7°C at Cape Moreton Lighthouse.

The coldest day was 13.4°C at Stanthorpe Leslie Parade on the 11th, followed by 14.8°C at Applethorpe on the 11th, followed by 18.0°C at Maleny Tamarind St on the 11th.

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

Minimum temperature

Mean minimum temperatures were below the long term average across most of the state, with the largest anomalies in western districts. Area averaged, and based on records since 1950, the minimum temperature for the state was 16.27°C, where the long term average is 17.33°C.

A complex low pressure system was located off the New South Wales coast on the 7th and 8th. A trough extended north from this low through to eastern Queensland and into the Gulf Country. To the west of the trough a large high in the Great Australian Bight directed cool, dry south west to south east winds as far north as Burketown, and produced well below average minimum temperatures. Some sites had their lowest October temperature on record.

The coldest night was −1.5°C at Stanthorpe Leslie Parade on the 17th, followed by −1.1°C at Applethorpe on the 17th, followed by −0.6°C at Stanthorpe Leslie Parade on the 8th.

The coolest nights on average were 8.1°C at Stanthorpe Leslie Parade, followed by 8.6°C at Applethorpe, followed by 10.0°C at Kingaroy Airport. Some sites had their lowest October mean daily minimum temperature on record.

The warmest nights on average were 24.8°C at Horn Island, followed by 24.6°C at Coconut Island, followed by 23.7°C at Willis Island.

The warmest night was 27.0°C at Ingham Composite on the 31st, followed by 26.8°C at Birdsville Airport on the 31st, followed by 26.5°C at Thargomindah Airport on the 25th.

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

Wind

The strongest wind gust was 120 km/h at Weipa Aero on the 4th. Strong wind gusts were also recorded on the 13th, with 94 km/h at Cape Moreton Lighthouse and 93 km/h at Brisbane.

Other phenomena

Areas of raised dust were reported over the southern and south west parts of Queensland on the 13th following the passage of a surface trough. Dust haze extended to the south east coast on the 14th.

Further information

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

Extremes

Hottest day
Highest temperature
41.5°C at Birdsville Airport on the 24th
Warmest days on average
Highest mean daily maximum temperature
36.9°C at Kowanyama Airport
Coolest days on average
Lowest mean daily maximum temperature
23.2°C at Applethorpe
Coldest day
Lowest daily maximum temperature
13.4°C at Stanthorpe Leslie Parade on the 11th
Coldest night
Lowest temperature
−1.5°C at Stanthorpe Leslie Parade on the 17th
Coolest nights on average
Lowest mean daily minimum temperature
8.1°C at Stanthorpe Leslie Parade
Warmest nights on average
Highest mean daily minimum temperature
24.8°C at Horn Island
Warmest night
Highest daily minimum temperature
27.0°C at Ingham Composite on the 31st
Wettest overall
Highest total rainfall
163.0 mm at Deception Bay Alert
Wettest day
Highest daily rainfall
132.0 mm at Deception Bay Alert on the 27th
Highest wind gust
120 km/h at Weipa Aero on the 4th

Records

Record highest October daily rainfall
Highest daily rainfall
in October 2009 (mm)
Previous highest
for October
Years of
record
Strathtay Station 53.4 on the 29th 43.4 on the 22nd in 1975 40
Eastmere 75.0 on the 28th 55.0 on the 23rd in 1986 39
Wallen 42.8 on the 28th 30.0 on the 18th in 1996 34



Record highest total October rainfall
Total rainfall
for October 2009 (mm)
Previous highest
for October
Years of
record
Average for
October
Wallen 97.0 71.2 in 2000 35 26.4



Record highest October mean daily maximum temperature
Mean daily maximum
temperature
for October 2009 (°C)
Previous highest
for October
Years of
record
Average for
October
St Lawrence Post Office 30.5 = 30.5 in 1987 68 28.9


Record lowest October temperature
Lowest temperature
in October 2009 (°C)
Previous lowest
for October
Years of
record
Average for
October
Monto Township 2.1 on the 9th 2.8 on the 1st in 1962 36 13.4



Record lowest October mean daily minimum temperature
Mean daily minimum
temperature
for October 2009 (°C)
Previous lowest
for October
Years of
record
Average for
October
Urandangi 14.1 14.8 in 2002 68 17.6


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 October 2009
Maximum temperatures
for October
(°C)
Minimum temperatures
for October
(°C)
Rainfall
for October
(millimetres)
Mean for
October
2009
Diff
from
average
Highest for
October
2009
Mean for
October
2009
Diff
from
average
Lowest for
October
2009
Total for
October
2009
Average
for
October
Rank of
October
2009
Fraction of
October
average
North Peninsula (district 27)
Coconut Island 33.2 +1.7 34.9 30th 24.6 +0.1 21.3 27th 1.4 7.2 average 19%
Coen Airport 33.2   37.4 15th 20.0   16.1 14th 0
Horn Island 31.3 +0.4 32.5 18th 24.8 +0.1 18.8 28th 1.2 8.7 average 14%
Scherger RAAF 35.4   38.0 15th 21.8   19.4 14th 99.6
Weipa Aero 35.6 0.0 36.8 16th 21.4 −0.4 18.9 21st 48.8 18.7 high 261%
South Peninsula (district 28)
Lockhart River Airport 30.8 +0.4 33.6 5th 21.8 0.0 16.1 14th 1.4 27.4 very low 5%
Musgrave 36.0 +1.4 38.9 16th 17.1 −1.4 13.5 23rd 0 13.7 lowest 0%
Lower Carpentaria (district 29)
Burketown Airport 35.4   38.2 15th 20.8   17.7 6th 0
Century Mine 36.4   39.4 26th 19.5   14.7 11th 0
Cloncurry Airport 34.8 −1.7 38.7 25th 18.1 −2.4 13.3 6th 0 21.7 very low 0%
Croydon Township 36.4 −0.5 38.0 25th 21.8 −0.6 15.1 6th 11.0 13.7 average 80%
Julia Creek Airport 35.7   38.7 25th 16.9   10.2 9th 0.2
Kowanyama Airport 36.9 +0.6 39.6 15th 21.3 −0.5 17.7 6th 0.2 15.6 average 1%
Mornington Island 32.6 +0.3 35.2 15th 23.1 −0.5 19.7 7th 0.2 12.5 average 2%
Mount Isa Aero 33.9 −0.8 38.0 25th 16.5 −2.1 9.3 11th 0 19.2 lowest 0%
Normanton Airport 36.7   38.8 15th 22.9   20.1 6th 0
Sweers Island 31.8   35.4 15th 23.5   18.9 8th 0 7.7 very low 0%
Upper Carpentaria (district 30)
Georgetown Airport 35.7   38.5 3rd 20.1   16.0 21st 0.4
Hughenden Airport 34.4   38.8 2nd 16.9   9.2 8th 4.6
Richmond Airport 35.3 −1.5 38.7 25th 16.5 −2.7 8.2 9th 0.4 10.8 average 4%
Richmond Post Office 35.1 −0.7 38.3 25th 17.5 −0.5 12.0 6th 0 16.2 lowest 0%
Barron North Coast (district 31)
Cairns Aero 30.2 +0.7 33.9 5th 19.8 −0.8 15.9 13th 31.0 39.7 average 78%
Cape Flattery 31.0   31.7 30th 22.5   15.9 14th 0.2
Cooktown Airport 30.6   32.7 5th 21.4   14.6 14th 7.6 21.3 low 36%
Green Island 29.1 −0.6 30.5 28th 23.3 +0.2 21.9 2nd
Kairi Research Station 28.7 +1.7 33.1 3rd 13.6 −1.5 9.3 13th 9.6 30.0 low 32%
Low Isles Lighthouse 31.4 +1.0 32.3 18th 23.0 −0.2 20.9 21st 29.0 43.8 average 66%
Mareeba Airport 30.6   36.0 14th 16.2   12.9 13th 8.6 8.4 high 102%
Walkamin DPI 29.8 +0.5 35.2 14th 16.0 −0.7 11.6 13th 16.2 21.8 average 74%
Herbert North Coast (district 32)
Cardwell Marine Pde 28.7 −0.7 31.0 4th 19.0 +0.1 14.4 17th 34.5 52.8 average 65%
Ingham Composite 30.9 +0.5 35.2 16th 18.1 −0.4 13.5 13th 83.0 47.8 high 174%
Innisfail 29.0 +0.6 31.9 17th 19.4 +0.5 16.8 13th 57.4 82.9 average 69%
Lucinda Point 27.0 −0.2 29.8 17th 22.6 −0.3 20.7 13th 10.8 18.7 average 58%
South Johnstone Exp Stn 29.7 +0.7 33.0 15th 18.0 −0.8 14.6 13th 89.2 89.3 average 100%
Townsville Aero 30.7 +1.3 36.3 4th 20.3 −0.4 15.1 17th 1.2 24.5 very low 5%
East Central Coast (district 33)
Alva Beach 29.3 +0.5 34.3 4th 21.4 −0.7 15.4 17th 2.8 20.6 low 14%
Ayr DPI Research Stn 30.7 +0.9 36.4 15th 18.3 +0.3 14.3 17th 4.8 27.4 average 18%
Bowen Airport 30.0 +0.8 35.7 4th 18.8 −1.1 15.2 5th 6.6 13.4 average 49%
Collinsville Post Office 33.2 +1.0 36.6 15th 16.6 −0.7 12.9 6th 0.6 21.5 low 3%
Hamilton Island Airport 27.7   31.7 16th 22.2   20.1 22nd 36.4
Mackay Aero 29.7 +1.5 34.1 14th 17.5 −0.7 12.0 5th 1.4 35.8 very low 4%
Mackay M.O 28.9 +1.4 32.3 14th 20.0 +0.3 15.5 5th 3.2 36.1 low 9%
Proserpine Airport 31.4 +1.2 37.8 4th 16.1 −1.5 10.1 5th 17.0 37.4 average 45%
Samuel Hill Aero 28.8   34.8 16th 14.2   6.9 9th 28.0
St Lawrence 30.2   36.4 16th 17.3   10.4 9th 12.2
St Lawrence Post Office 30.5 +1.7 36.9 16th 17.9 +0.2 13.0 9th 13.4 45.1 average 30%
Williamson 29.8   35.4 16th 17.3   10.9 1st 22.0
Woolshed 28.5 +1.1 34.6 15th 16.6 −1.2 11.1 16th 7.6 18.9 low 40%
Yeppoon The Esplanade 27.1 +1.0 35.9 14th 19.6 +0.5 13.5 9th 5.0 49.9 very low 10%
West Central Coast (district 34)
Charters Towers Airport 33.4 +0.5 36.1 14th 17.3 −1.2 13.0 6th 0 16.2 very low 0%
Moranbah Water Treatment Plant 33.0 +0.6 36.0 26th 16.9 −0.8 12.2 5th 2.6 36.1 low 7%
Central Highlands (district 35)
Brigalow Research Stn 31.5 +1.4 35.2 25th 14.2 −0.7 7.1 9th 23.5 62.5 low 38%
Clermont Sirius St 32.4 +0.4 36.5 13th 15.3 −1.0 7.4 9th 24.2 35.4 average 68%
Emerald Airport 32.4 +0.7 36.1 13th 15.5 −1.9 10.7 9th 11.0 42.5 low 26%
Rolleston 31.9 +0.2 36.0 1st 13.6 −1.4 6.7 9th 13.3 45.9 low 29%
Springsure Dame St 31.1 +0.4 35.1 28th 14.8 −0.4 8.9 9th 18.0 47.4 low 38%
Tambo Post Office 30.8 −0.1 37.0 25th 12.6 −1.2 3.7 9th 24.1 33.5 average 72%
Taroom Post Office 31.3 +1.5 36.7 25th 14.0 −0.7 4.2 9th 23.8 55.3 low 43%
Central Lowlands (district 36)
Barcaldine Post Office 32.2 0.0 37.0 25th 17.1 −0.4 10.2 10th 27.1 29.1 average 93%
Blackall Airport 32.1   38.0 25th 15.2   5.0 9th 51.0
Isisford Post Office 32.9 −0.2 39.7 25th 16.1 −0.5 7.4 9th 19.4 26.4 average 73%
Longreach Aero 33.7 −0.2 40.2 25th 15.7 −1.3 6.5 10th 17.8 23.8 average 75%
Upper Western (district 37)
Camooweal Township 35.1 −0.7 39.0 25th 17.3 −2.2 8.8 6th 0.2 14.1 low 1%
The Monument Airport 33.6   39.5 25th 15.9   7.5 9th 0
Trepell Airport 33.8   38.8 25th 16.0   8.6 9th 0
Urandangi 34.2 −0.9 40.0 25th 14.1 −3.5 9.0 6th 0 14.3 lowest 0%
Winton Airport 34.6   39.2 25th 16.4   8.6 10th 0.4
Winton Post Office 34.1 −0.6 38.8 25th 18.1 +0.3 11.6 10th 0.4 18.1 low 2%
Lower Western (district 38)
Birdsville Airport 32.2   41.5 24th 15.2   8.9 9th 0 10.1 very low 0%
Boulia Airport 33.4 −0.8 40.5 25th 16.6 −1.3 9.5 7th 0 14.8 lowest 0%
Windorah Post Office 32.5 −0.1 40.5 25th 15.5 −1.0 8.3 8th 0.4 17.6 low 2%
Port Curtis South Coast (district 39)
Baralaba Post Office 32.7 +1.4 36.3 25th 15.0 −0.6 6.7 9th 7.8 55.6 low 14%
Bundaberg Aero 28.0 +1.2 33.0 16th 16.5 −0.1 12.5 9th 4.4 71.8 very low 6%
Gayndah Airport 31.0   35.9 25th 13.5   6.6 9th 51.0
Gladstone Airport 28.7 +1.2 35.9 14th 18.0 −0.6 12.7 9th 3.6 61.2 low 6%
Gladstone Radar 30.4 +2.0 36.0 14th 19.1 +0.4 17.4 8th 9.8 61.3 very low 16%
Lady Elliot Island 26.6 +1.1 28.3 26th 21.2 +0.9 19.1 8th 2.0 56.8 lowest 4%
Monto Township 30.5 +1.5 34.8 25th 12.3 −1.1 2.1 9th 14.8 55.5 low 27%
Rockhampton Aero 31.4 +1.7 37.9 14th 17.1 +0.1 11.6 9th 10.8 49.6 low 22%
Rundle Island 25.0 0.0 27.0 1st 21.5 +0.3 18.3 10th
Sandy Cape Lighthouse 27.0 +1.0 29.6 15th 18.8 +0.1 16.4 10th 8.0 59.1 very low 14%
Seventeen Seventy 27.6 +1.7 29.5 27th 19.2 −0.2 15.1 9th 2.0 59.0 lowest 3%
Thangool Airport 31.8 +1.4 35.2 25th 11.8 −1.8 2.6 9th 13.2 57.5 low 23%
Moreton South Coast (district 40)
Amberley AMO 29.3 +1.6 35.2 13th 11.5 −1.9 5.1 17th 41.0 73.7 low 56%
Archerfield Airport 28.1 +1.2 35.3 13th 13.7 −0.6 8.5 8th 43.6 77.2 low 56%
Beaudesert Drumley Street 28.8   33.7 13th 11.5   4.4 8th 55.6
Beerburrum Forest Station 28.4 +0.6 35.2 3rd 13.4 −1.4 8.2 9th 127.2 86.9 high 146%
Brisbane* 27.8 +1.7 35.0 13th 15.6 −0.2 11.8 8th 57.4 75.4 average 76%
Brisbane Aero 26.7 +1.3 34.8 3rd 14.7 −1.1 9.8 8th 59.0 64.9 average 91%
Cape Moreton Lighthouse 24.7 +1.7 29.4 16th 18.8 +1.0 14.4 8th 10.4 79.6 very low 13%
Coolangatta 26.6 +2.4 34.6 3rd 14.9 −1.1 6.3 8th 12.2 85.0 very low 14%
Double Island Point Lighthouse 26.9 +2.4 30.0 16th 18.8 +0.3 15.1 8th 17.0 70.8 low 24%
Gold Coast Seaway 26.6 +1.4 35.0 3rd 16.4 −0.5 12.3 8th 20.8 88.1 very low 24%
Gympie 29.3 +0.9 33.9 3rd 12.2 −1.6 6.3 9th 23.6 71.7 low 33%
Hervey Bay Airport 27.2 +0.8 31.3 16th 15.2 −2.3 10.2 1st 9.8 76.7 low 13%
Jimna Forestry 26.2   31.0 25th 10.8   3.9 9th 79.4 70.3 average 113%
Kingaroy Airport 28.1   34.0 25th 10.0   0.3 9th 31.0
Logan City Water Treatment 27.8 +1.5 35.0 3rd 14.3 −0.5 9.6 8th 36.3 58.6 low 62%
Maleny Tamarind St 25.0   31.2 3rd 14.0   9.4 8th 71.4 105.5 average 68%
Maroochydore Aero 26.5 +1.1 35.3 3rd 14.8 −0.8 9.1 9th 96.6 72.3 average 134%
Maryborough 29.0 +1.3 34.7 16th 14.2 −1.2 10.1 1st 5.0 74.5 very low 7%
Nambour DPI - Hillside 27.5   35.1 3rd 14.7   10.6 9th 79.0
Point Lookout 26.1 +1.1 31.0 17th 18.2 −0.4 12.8 8th 99.8 101.2 high 99%
Rainbow Beach 26.1 +0.6 31.7 14th       40.5 77.5 low 52%
Redcliffe* 26.1 +0.9 34.7 3rd 16.2 −0.3 12.2 8th 92.6 70.4 high 132%
Tewantin RSL Park 26.2 +0.6 34.2 3rd 15.9 −1.1 11.7 8th 33.8 80.8 low 42%
Toolara 30.0 +1.1 33.9 14th 16.0 −0.7 13.0 8th 28.2 78.1 very low 36%
University of Queensland Gatton 29.9 +1.8 34.5 24th 11.4 −1.8 5.6 8th 17.2 64.4 low 27%
East Darling Downs (district 41)
Applethorpe 23.2 +1.5 30.0 22nd 8.6 −0.4 −1.1 17th 48.8 71.9 average 68%
Dalby Airport 29.3 +0.8 34.7 25th 11.5 −1.2 2.6 9th 6.8 58.2 very low 12%
Goondiwindi Airport 29.1 +0.1 35.8 24th 13.4 −0.2 5.2 9th 12.4 47.7 low 26%
Inglewood Forest 28.7   35.1 24th 12.6   4.8 8th 20.0 50.4 low 40%
Oakey Aero 28.0 +1.4 33.6 25th 11.2 −0.1 2.3 17th 36.0 56.9 average 63%
Stanthorpe Leslie Parade 23.9 +1.3 30.6 24th 8.1 −0.9 −1.5 17th 46.0 69.2 average 66%
Texas Post Office 28.9 +1.0 35.1 24th 12.1 +0.5 4.5 17th 28.6 60.9 low 47%
Toowoomba Airport 25.4 +0.7 31.6 24th 12.2 −0.7 6.3 8th 45.0 61.3 average 73%
Warwick 26.9 +0.9 32.4 24th 10.2 −0.3 1.5 17th 29.4 74.3 low 40%
West Darling Downs (district 42)
Miles Constance Street 30.1 +0.4 36.0 25th 12.7 −1.5 1.4 9th 15.0 39.8 low 38%
Maranoa (district 43)
Injune Post Office 29.9 +0.4 36.4 25th 11.9 −0.9 1.6 9th 34.8 46.9 average 74%
Mitchell Post Office 30.0 +0.7 36.1 25th 11.7 −0.6 1.9 9th 45.5 42.7 average 107%
Roma Airport 30.1 +0.5 37.4 24th 12.9 −1.0 1.8 9th 5.2 56.5 very low 9%
St George Airport 29.7 −0.2 37.4 24th 13.9 −0.8 5.2 8th 13.2 45.2 very low 29%
Surat 29.8 +0.7 36.9 24th 14.1 +0.3 3.0 9th 12.5 49.9 low 25%
Warrego (district 44)
Bollon Mary St 29.9 +0.3 38.2 23rd 13.5 −0.2 6.1 9th 114.7 35.8 very high 320%
Charleville Aero 29.9 +0.1 37.5 25th 13.2 −1.2 4.0 9th 20.6 37.2 average 55%
Cunnamulla Post Office 29.2 −0.4 38.2 22nd 14.5 −0.3 7.7 9th 70.2 25.6 very high 274%
Far Southwest (district 45)
Ballera Gas Field 30.8   39.9 23rd 15.8   8.1 4th 0.6
Quilpie Airport 30.6 −0.5 38.1 25th 15.1 −1.1 8.3 9th 46.3 21.5 high 215%
Thargomindah Airport 30.4 −1.0 40.9 22nd 15.7 −1.2 9.0 4th 17.8 12.1 average 147%

Notes

This statement has been prepared based on information available at 7 am on Monday 2 November 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 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