3 May 2011 - Monthly Climate Summary for Queensland - Product code IDCKGC24R0

Queensland in April 2011: 

Cooler month with more rainfall over the eastern half of the state

  • Wetter conditions over the eastern and tropical parts of the state
  • Dry in the west and southwest
  • Flooding in the Roma area
  • Cooler day and night temperatures across most parts of the state

Main Weather Systems

The month started with cloudy and patchy rain conditions dominating the northern half of the state for a few days due to the interaction between a mid level ridge over the Coral Sea and a mid level trough moving into southeast Australia. Rain areas became heavy through the southern Gulf to central areas, with moderate to locally heavy falls about the tropical coastal areas. There were scattered showers along the southern coast due to the fresher south to southeast airflow.

From the 5th, a fairly strong and very slow moving high in the Bight extended a firm ridge up the east coast of Queensland for the next few days. Strong winds persisted along the tropical and central coasts and rain areas contracted north. Isolated showers persisted along the southeast coast from the 5th to 7th due to the passage of a weak surface trough.

From the 9th to the 11th, the firm east coast ridge started to weaken from the south and strong winds contracted north. A surface trough moved over the southwestern border early on the 10th, swept through the southern districts during the 11th, then crossed the southeast coast on the 12th. Scattered showers and isolated thunderstorms occurred over the southern parts of the state during the 10th and the 11th, then increased to scattered showers and thunderstorms over the Southeast Coast districts on the 12th. Showers persisted over the Cape York Peninsula during this period.

There were fairly stable conditions over most of the state between the 13th to the 14th, apart from isolated showers over the southern and central coasts and scattered showers and thunderstorms over Cape York Peninsula.

A surface trough, coupled with an upper trough, approached the southwestern districts early on the 15th and quickly swept through the southern parts of the state on the 16th. Isolated showers over the southwestern districts on the 15th increased to scattered showers and thunderstorms over the southern interior on the 16th. The upper trough intensified into a cut off low and moved into the central interior during the 17th. Scattered showers and thunderstorms caused moderate to localised heavy falls over the eastern parts of the Central West District. Scattered showers also fell over the Sunshine Coast area and reduced to isolated over the Southeast Coast inland parts as well as over the Darling Downs region.

The upper cutoff low moved towards the southwest into the southern interior on the 18th, while intensifying. Showers and thunderstorms were over most of the Central Coast and the central interior areas, whilst thickening cloud and rain areas developed over the southeast interior. Showers and isolated thunderstorms were over the southwest under the cold mid level trough but rainfall was limited by the lack of lower level moisture. On the 19th, the upper low moved east over the central interior. More widespread and heavier thundery rain areas developed mostly over the southern and central interior as well as the southeast coast, mainly due to the low level convergence of the easterly and northeasterly winds. The Roma area was affected by flooding. The upper level low, or trough, moved off the central coast on the 20th. Scattered showers persisted along the southeast coast during the morning and eased to more isolated during the afternoon. A weak coastal ridge developed along the east coast. The lingering moisture delivered very isolated showers over inland parts. Showers and thunderstorms continued over the Cape York Peninsula during this period.

The east coast ridge continued to develop from the 21st to the 25th and some isolated showers appeared along the central coast. On the 22nd, thunderstorms extended from the southern border ranges through to the Gold Coast Hinterland and then to the southern Brisbane area. Some flash flooding was reported over the Logan and Underwood/Springwood area. On the 23rd, heavy showers and thunderstorms formed near Toowoomba and the western Lockyer Valley during the afternoon.

From the 26th, the strengthening ridge and south to southeasterly winds persisted along the east coast. This combined with an upper level trough that moved over southern and central Queensland. Cloudy conditions with high based thunderstorms were observed over the southwestern districts during the 26th and the 27th. Isolated showers along the east coast during early 26th increased to rain areas and scattered showers from the afternoon of the 26th through to the 27th. Some moderate falls were recorded over the Gold Coast, the northern tropical coast and the southeast of the Upper Flinders. Showers and isolated thunderstorms continued along most parts of the east coast on the 28th, with moderate falls around the Cardwell area and exposed parts and coastal islands of the southern coast.

Showers eased to isolated over the southeast coast, the tropical coast and some exposed parts of the central coast during the last two days of the month.

Flooding

Heavy rain between the 18th and the 19th caused flooding over the Roma area.

Rainfall

The state averaged April monthly rainfall was 36.74 mm which was slightly below the long-term (1961-1990) April mean rainfall of 41.88 mm. 3.3% of the state received very much above the average rainfall (decile 10 range). These areas included the northwestern parts of the Darling Downs and the southern parts of the Central Coast.

Most of the eastern half of the state as well as the tropical region received above the average rainfall, apart from the northern Tropical Coast between Cairns and Ingham which was below the average. The rainfall over the western and southwestern districts was below the long-term mean with large parts recording no rain.

The wettest overall was Daradgee with 618.4 mm, followed by Bingil Bay with 606.1 mm, then Innisfail with 562.8 mm.

Some sites had their highest total April rainfall for at least 20 years.

The wettest single day was at Coconut Island with 180.0 mm on the 18th, followed by Plane Creek Sugar Mill with 160.0 mm on the 2nd, then Daradgee with 155.4 mm on the 2nd.

Some sites had their highest April daily rainfall on record. See a map of total rainfall. See a map of rainfall deciles.

Temperature

The state averaged mean temperature in April was 22.48 C, which was 1.12 C below the long-term (1961-1990) average of 23.60 C. This figure was ranked the 6th coldest April since the area-averaged dataset records started in 1950 and was the coldest since 2008 (4th).

The warmest on average was Coconut Island with 28.1 C, followed by Scherger RAAF with 27.6 C, then Horn Island with 27.5 C.

The coolest on average was Applethorpe with 15.1 C, followed by Stanthorpe Leslie Parade with 15.7 C, then Toowoomba Airport with 17.7 C.

Maximum temperature

The state averaged maximum temperature in April was 28.89 C, which was 0.98 C below the long-term mean of 29.87 C. This figure was ranked the 11th coldest April since the area-averaged dataset records started in 1950 and was the coldest since 2000 (9th).

The hottest day with 34.7 C was at Century Mine on the 15th and at Burketown Airport on the 21st, followed by 34.5 C at Urandangi on the 8th and at Burketown Airport on the 15th, then 34.3 C at Burketown Airport on the 22nd and at Century Mine on the 22nd.

The warmest days on average were at Burketown Airport with 32.9 C, followed by Kowanyama Airport with 32.5 C, then Scherger RAAF with 32.2 C.

The coolest days on average were at Applethorpe with 20.0 C, followed by Stanthorpe Leslie Parade with 20.9 C, then Toowoomba Airport with 22.0 C.

The coldest day was at Charleville Aero with 15.5 C on the 15th, followed by Applethorpe with 15.9 C on the 27th, then Applethorpe with 16.0 C on the 16th.

Some sites had their coldest April day (lowest maximum temperature) on record. Some sites had their lowest April mean daily maximum temperature for at least 20 years. See a map of mean maximum temperatures. See a map of maximum temperature anomalies.

Minimum temperature

The state averaged minimum temperature in April was 16.09 C, which was 1.25 C below the long-term mean of 17.34 C. This figure was ranked the 8th coldest April since the area-averaged dataset records started in 1950 and was the coldest since 2008 (2nd).

The coldest night was at Applethorpe with 2.5 C on the 13th, followed by Stanthorpe Leslie Parade with 2.5 C on the 13th, then Stanthorpe Leslie Parade with 3.2 C on the 14th.

The coolest nights on average were at Applethorpe with 10.3 C, followed by Stanthorpe Leslie Parade with 10.5 C, then Mitchell Post Office and Tambo Post Office with 10.9 C.

The warmest nights on average were at Coconut Island with 25.1 C, followed by Horn Island with 25.1 C, then Willis Island with 25.0 C.

The warmest nights on average were at Coconut Island and Horn Island with 25.1 C, followed by Willis Island with 25.0 C, then with 24.1 C at Cape FlatteryLow Isles Lighthouse and Sweers Island.

The warmest night with 27.2 C was at Willis Island on the 1st and at Coconut Island on the 21st, followed by 26.8 C at Coconut Island on the 6th and at Willis Island on the 10th, then Horn Island with 26.7 C on the 21st.

Some sites had their lowest April mean daily minimum temperature for at least 20 years. See a map of mean minimum temperatures. See a map of minimum temperature anomalies.

Wind

The strongest wind gust was at Hamilton Island Airport with 91 km/h on the 26th, followed by Cape Moreton Lighthouse with 89 km/h on the 8th, then Double Island Point Lighthouse with 87 km/h on the 5th.

Further information

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Extremes in April 2011
Hottest day 34.7 C at Century Mine on the 15th
34.7 C at Burketown Airport on the 21st
34.5 C at Urandangi on the 8th
34.5 C at Burketown Airport on the 15th
34.3 C at Burketown Airport on the 22nd
34.3 C at Century Mine on the 22nd
Warmest days on average 32.9 C at Burketown Airport
32.5 C at Kowanyama Airport
32.2 C at Scherger RAAF
Coolest days on average 20.0 C at Applethorpe
20.9 C at Stanthorpe Leslie Parade
22.0 C at Toowoomba Airport
Coldest day 15.5 C at Charleville Aero on the 15th
15.9 C at Applethorpe on the 27th
16.0 C at Applethorpe on the 16th
Coldest night 2.5 C at Applethorpe on the 13th
2.5 C at Stanthorpe Leslie Parade on the 13th
3.2 C at Stanthorpe Leslie Parade on the 14th
Coolest nights on average 10.3 C at Applethorpe
10.5 C at Stanthorpe Leslie Parade
10.9 C at Mitchell Post Office
10.9 C at Tambo Post Office
Warmest nights on average 25.1 C at Coconut Island
25.1 C at Horn Island
25.0 C at Willis Island
24.1 C at Cape Flattery
24.1 C at Low Isles Lighthouse
24.1 C at Sweers Island
Warmest night 27.2 C at Willis Island on the 1st
27.2 C at Coconut Island on the 21st
26.8 C at Coconut Island on the 6th
26.8 C at Willis Island on the 10th
26.7 C at Horn Island on the 21st
Warmest on average overall 28.1 C at Coconut Island
27.6 C at Scherger RAAF
27.5 C at Horn Island
27.5 C at Weipa Aero
Coolest on average overall 15.1 C at Applethorpe
15.7 C at Stanthorpe Leslie Parade
17.7 C at Toowoomba Airport
Wettest overall 618.4 mm at Daradgee
606.1 mm at Bingil Bay
562.8 mm at Innisfail
Wettest day 180.0 mm at Coconut Island on the 18th
160.0 mm at Plane Creek Sugar Mill on the 2nd
155.4 mm at Daradgee on the 2nd
Highest wind gust 91 km/h at Hamilton Island Airport on the 26th
89 km/h at Cape Moreton Lighthouse on the 8th
87 km/h at Double Island Point Lighthouse on the 5th

Record highest April daily rainfall
Highest daily rainfall
in April 2011 (mm)
Previous wettest
for April
Years of
record
Rosedale Post Office 149.6 on the 19th 141.0 on the 12th in 1953 113
Wallumbilla Post Office 82.4 on the 19th 69.6 on the 28th in 1942 112
Monto Township 68.0 on the 19th 64.4 on the 28th in 1983 70
Gladstone Radar 97.8 on the 19th 93.4 on the 25th in 1989 53



Highest total April rainfall for at least 20 years
Total rainfall
for April 2011 (mm)
Most recent April
at least this wet
Years since
wetter
Average for
April
Anakie Richardson St 101.0 227.8 in 1983 28 34.5
Dalveen 66.3 167.2 in 1990 21 49.5
Glenlyon Dam 59.4 134.8 in 1990 21 36.3
Glenorie 63.0 272.8 in 1990 21 32.0
Mt Perry The Pines 130.8 195.6 in 1990 21 56.9
Pacific Heights 261.8 448.2 in 1990 21 107.6
Rockley 111.0 183.8 in 1990 21 45.5
Rosedale Post Office 168.0 177.4 in 1990 21 69.3
Springbrook Road 273.9 551.5 in 1990 21 227.5
The Head 177.8 189.6 in 1990 21 81.4
Walterhall 122.2 166.6 in 1990 21 47.0
Glenlands 77.0 195.0 in 1990 20 37.6
Taroom Post Office 114.6 141.4 in 1990 20 35.6



Record lowest April daily maximum temperature
Lowest daily maximum
temperature
in April 2011 (C)
Previous coolest
for April
Years of
record
Average for
April
Charleville Aero 15.5 on the 15th = 15.5 on the 26th in 1983 70 28.1



Lowest April mean daily maximum temperature for at least 20 years
Mean daily maximum
temperature
for April 2011 (C)
Most recent April
at least this cool
Years since
cooler
Average for
April
Clermont Sirius St 26.8 26.3 in 1941 65 29.5
Mornington Island 30.3 =30.3 in 1985 24 31.5
Baralaba Post Office 28.0 27.9 in 1983 23 30.4



Lowest April mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for April 2011 (C)
Most recent April
at least this cool
Years since
cooler
Average for
April
Boulia Airport 15.7 14.5 in 1978 33 17.1
Windorah Post Office 13.9 13.0 in 1978 33 16.1
Camooweal Township 15.3 14.9 in 1978 31 18.0



Summary statistics for April 2011
Maximum temperatures
for April
(C)
Minimum temperatures
for April
(C)
Rainfall
for April
(millimetres)
Mean for
April
2011
Diff
from
average
Highest for
April
2011
Mean for
April
2011
Diff
from
average
Lowest for
April
2011
Total for
April
2011
Average
for
April
Rank of
April
2011
Fraction of
April
average
North Peninsula (district 27)
Coconut Island 31.1 -0.1 33.7 28th 25.1 -0.6 22.8 18th 546.4 165.6 v high 330%
Coen Airport 30.7   32.5 23rd 22.1   18.1 30th 110.8 68.0 high 163%
Horn Island 29.9 -0.5 31.8 1st 25.1 -0.1 22.5 14th 345.2 243.2 high 142%
Scherger RAAF 32.2   33.4 27th 22.9   19.7 30th 328.0
Weipa Aero 31.8 -0.5 33.2 13th 23.2 +0.4 20.5 30th 321.6 106.8 v high 301%
South Peninsula (district 28)
Lockhart River Airport 29.2 -0.6 30.5 21st 22.9 0.0 19.7 30th 439.2 302.0 high 145%
Musgrave 31.4 -0.4 33.5 2nd 21.0 +1.1 17.6 30th 107.2 74.2 high 144%
Palmerville 31.7 -0.5 33.0 20th 19.8 +0.1 15.1 29th 83.0 49.2 high 169%
Lower Carpentaria (district 29)
Burketown Airport 32.9 -1.4 34.7 21st 20.0 -1.9 16.4 19th 0 64.2 v low 0%
Century Mine 32.1   34.7 15th 19.0   14.8 19th 5.2 46.8 average 11%
Cloncurry Airport 30.9 -2.7 33.7 15th 17.5 -2.6 11.8 13th 14.2 19.9 high 71%
Croydon Township 31.9 -2.1 33.9 21st 20.0 -1.0 16.0 19th 13.2 25.5 average 52%
Julia Creek Airport 30.8 -4.0 33.8 15th 15.1 -2.7 10.2 12th 0.2 16.3 average 1%
Kowanyama Airport 32.5 -0.4 34.1 22nd 22.3 +0.5 16.9 30th 79.2 55.9 high 142%
Mornington Island 30.3 -1.2 33.5 10th 23.1 -0.1 18.7 19th 77.8 55.0 high 141%
Mount Isa Aero 29.6 -2.3 31.8 24th 16.1 -2.4 8.2 13th 6.8 15.5 average 44%
Normanton Airport 31.9 -2.4 34.1 21st 21.6 -1.3 17.7 19th 35.8 32.3 high 111%
Sweers Island 29.9 -1.7 31.6 21st 24.1 -0.6 20.2 19th 41.0 52.7 average 78%
Upper Carpentaria (district 30)
Georgetown Airport 31.0   33.3 23rd 19.0   14.9 30th 5.2
Hughenden Airport 30.2 -2.0 33.5 13th 16.5 -1.7 12.2 30th 12.2 25.0 high 49%
Richmond Airport 30.5 -2.8 33.2 22nd 15.8 -2.2 11.0 30th 10.6 35.5 average 30%
Richmond Post Office 30.8 -1.9 34.2 15th 16.6 -0.4 12.4 30th 9.3 22.6 average 41%
Barron North Coast (district 31)
Cairns Aero 29.2 0.0 31.0 23rd 21.8 +0.2 18.3 14th 68.0 197.1 low 35%
Cape Flattery 29.1   30.4 17th 24.1   22.5 11th 438.2
Cooktown Airport 28.7 -0.4 30.5 2nd 22.5 -0.5 19.0 15th 123.4 160.9 average 77%
Low Isles Lighthouse 28.7 -0.7 30.9 22nd 24.1 0.0 22.8 29th 99.4 231.8 low 43%
Mareeba Airport 28.0 -0.3 30.3 23rd 19.0 +0.1 15.2 30th 2.4 37.1 low 6%
Walkamin Research Station 26.3 -0.2 28.8 22nd 18.1 -0.1 14.7 16th 11.0 51.4 v low 21%
Herbert North Coast (district 32)
Cardwell Marine Pde 28.0 -1.2 29.2 7th     17.4 29th 68.8 210.1 low 33%
Ingham Composite 28.9 -0.1 32.0 22nd 20.4 +0.1 17.5 29th 71.4 204.8 low 35%
Innisfail 27.7 -0.6 29.9 22nd 21.4 +0.9 19.3 30th 562.8 462.1 high 122%
South Johnstone Exp Stn 27.7 -0.5 31.4 22nd 21.1 +0.7 18.4 16th 462.4 397.3 average 116%
Townsville Aero 29.1 -0.5 31.2 22nd 20.8 +0.2 16.8 30th 86.6 66.6 high 130%
East Central Coast (district 33)
Alva Beach 28.1 -1.0 30.0 22nd 20.0 -1.0 16.2 30th 42.4 71.1 average 60%
Ayr DPI Research Stn 29.0 -0.5 31.7 21st 19.1 +0.1 15.4 29th 25.0 48.6 average 51%
Bowen Airport 28.0 -1.3 30.1 22nd 19.3 -1.6 14.2 30th 40.0 61.4 average 65%
Collinsville Post Office 28.7 -1.6 31.1 23rd 16.7 -0.3 11.8 30th 68.0 42.0 high 162%
Hamilton Island Airport 25.7 -1.3 27.3 24th 22.0 -0.7 19.0 29th 314.8 139.7 v high 225%
Mackay Aero 26.7 -0.9 28.0 25th 19.3 -0.1 15.0 30th 159.0 175.8 average 90%
Mackay M.O 25.9 -0.8 27.5 14th 19.9 -0.3 16.1 30th 36.8 144.7 v low 25%
Proserpine Airport 27.8 -0.9 30.1 22nd 18.8 -0.4 14.5 30th 81.4 121.2 average 67%
Samuel Hill Aero 26.4 -1.0 29.1 22nd 18.5 +0.5 14.5 30th 205.6 126.8 high 162%
St Lawrence 27.9   31.0 22nd 18.3   14.1 30th 40.4
St Lawrence Post Office 27.9 -1.4 31.0 22nd 18.5 +0.1 14.5 30th 40.7 59.3 average 69%
Williamson 27.7   30.6 22nd 18.2   12.6 30th 41.8
Woolshed 25.6 -0.4 28.8 22nd 17.3 -0.6 12.4 30th 50.2 71.4 average 70%
Yeppoon The Esplanade 25.9 -0.8 27.4 21st 19.3 -0.4 16.5 30th 159.0 70.4 high 226%
West Central Coast (district 34)
Charters Towers Airport 27.9 -2.4 30.9 22nd 17.6 -0.8 14.3 30th 66.2 29.4 high 225%
Central Highlands (district 35)
Clermont Airport 27.0   30.7 22nd 14.7   8.8 30th 74.8
Clermont Sirius St 26.8 -2.7 30.5 14th 15.2 -0.5 10.5 30th 80.0 38.8 high 206%
Emerald Airport 27.2 -2.8 30.6 22nd 15.9 -1.2 12.6 19th 84.6 33.7 high 251%
Lochington 27.3   30.2 22nd 14.7   10.9 29th 69.2
Rolleston Airport 27.1   29.8 14th 14.6   11.0 30th 99.2
Springsure Comet St 26.9 -2.1 29.9 22nd 14.7 -0.1 11.0 19th 71.6 40.1 high 179%
Tambo Post Office 27.7 -1.4 30.4 21st 10.9 -1.8 6.0 13th 20.4 37.3 average 55%
Taroom Post Office 27.7 -1.1 31.0 14th 14.1 0.0 11.0 17th 114.6 35.6 v high 322%
Central Lowlands (district 36)
Barcaldine Post Office 28.9 -1.1 32.9 15th 15.5 -1.3 10.9 12th 52.7 36.7 high 144%
Blackall Airport 28.7 -2.3 31.8 14th 13.0 -3.0 6.5 12th 13.2 32.6 average 40%
Isisford Post Office 30.4 -0.3 33.9 14th 14.1 -1.9 8.0 12th 4.0 36.9 average 11%
Longreach Aero 30.5 -0.9 33.8 15th 14.1 -2.3 7.8 13th 0 38.0 lowest 0%
Upper Western (district 37)
Camooweal Township 30.4 -2.6 33.0 9th 15.3 -2.7 10.5 18th 12.2 14.5 high 84%
The Monument Airport 30.1 -2.6 33.0 14th 14.6 -2.8 8.7 13th 0.2 17.6 low 1%
Trepell Airport 29.9 -3.4 32.7 24th 14.3 -3.7 9.7 13th 0 16.9 v low 0%
Urandangi 30.8 -1.6 34.5 8th     8.1 29th 0 13.1 lowest 0%
Winton Airport 30.7   33.7 14th 15.5   10.3 12th 4.6 25.2 average 18%
Winton Post Office 30.4 -1.7 33.1 14th 16.6 -0.6 12.2 13th 5.2 22.4 average 23%
Lower Western (district 38)
Bedourie Police Station 28.9 -3.4 32.2 5th 17.2 -0.2 13.9 13th 1.3 10.0 average 13%
Birdsville Airport 29.1 -3.0 32.4 21st 15.5 -1.7 10.2 12th 0 1.3 v low 0%
Boulia Airport 30.5 -1.0 33.2 25th 15.7 -1.4 11.2 14th 0 13.8 lowest 0%
Windorah Post Office 29.1 -1.1 32.0 1st 13.9 -2.2 9.0 12th 0.4 19.8 low 2%
Port Curtis South Coast (district 39)
Baralaba Post Office 28.0 -2.4 30.7 22nd 16.4 +0.4 13.2 30th 43.2 45.2 average 96%
Bundaberg Aero 27.1 -0.3 29.1 23rd 17.8 +0.3 14.7 30th 63.6 58.5 average 109%
Gayndah Airport 27.6   29.7 23rd 15.4   12.4 10th 56.4 24.6 high 229%
Gladstone Airport 27.3 -0.7 29.4 21st 19.1 +0.1 15.6 30th 106.2 45.4 high 234%
Gladstone Radar 27.4 -1.0 29.7 22nd 19.2 -0.4 16.0 30th 107.6 48.7 v high 221%
Lady Elliot Island 26.2 -0.3 28.3 15th 22.0 +0.2 19.1 14th 82.2 102.7 average 80%
Monto Township 26.1 -1.6 29.0 23rd 14.5 +0.8 9.4 30th 94.8 44.8 v high 212%
Rockhampton Aero 27.7 -1.1 30.1 12th 18.2 +0.3 13.6 30th 40.4 43.8 average 92%
Rundle Island 24.8 -0.8 26.3 14th 21.0 -0.8 18.2 9th
Sandy Cape Lighthouse 26.2 -0.6 28.6 13th 20.2 +0.3 17.2 30th 158.0 121.2 high 130%
Seventeen Seventy 25.3 -1.2 27.1 24th 19.3 0.0 16.5 28th 133.6 108.3 high 123%
Thangool Airport 27.6 -2.3 30.3 13th 14.0 -0.1 10.0 30th 46.8 35.5 high 132%
Moreton South Coast (district 40)
Amberley AMO 26.4 -0.8 29.9 22nd 14.4 +0.4 10.3 13th 42.0 55.2 average 76%
Archerfield Airport 25.9 -0.5 29.2 22nd 15.7 +0.7 12.8 10th 96.4 80.3 high 120%
Beaudesert Drumley Street 25.9   29.6 21st 14.6   10.3 10th 78.2
Beerburrum Forest Station 25.7 -0.8 29.2 14th 16.3 +0.6 14.0 30th 132.2 115.5 high 114%
Brisbane 26.2 -1.0 29.4 22nd 17.4 +0.1 15.3 10th 100.2 60.0 high 167%
Brisbane Aero 25.3 -0.7 28.8 14th 16.9 +0.6 14.8 13th 97.0 67.5 high 144%
Cape Moreton Lighthouse 24.8 +0.6 26.7 21st 19.8 +0.7 17.2 29th 79.8 146.7 average 54%
Coolangatta 25.3 0.0 27.5 14th 17.2 +0.3 14.8 10th 197.8 170.4 high 116%
Double Island Point Lighthouse 25.0 +0.1 28.9 11th 20.0 +0.2 17.4 28th 77.8 131.9 average 59%
Gold Coast Seaway 25.8 +0.1 28.4 14th 18.2 -0.1 16.7 28th 205.8 111.8 high 184%
Gympie 26.1 -1.2 29.5 14th 16.4 +1.8 12.3 30th 103.4 83.7 high 124%
Hervey Bay Airport 26.4 -0.5 28.4 15th 18.1 +0.2 15.2 30th 89.2 72.4 high 123%
Jimna Forestry 22.3 -1.6 25.8 22nd 13.9 +0.9 10.9 10th 110.4 58.1 high 190%
Kingaroy Airport 24.4 -1.8 27.6 14th 13.5 +1.4 8.3 10th 25.4 20.1 average 126%
Logan City Water Treatment Plant 25.6 -0.8 29.0 14th 16.6 +0.7 14.0 10th 151.0 78.9 v high 191%
Maleny Tamarind St 22.6 -1.0 26.4 14th 15.8 +0.9 13.8 30th 278.4 193.7 high 144%
Maryborough 26.9 -0.5 29.8 14th 17.1 +0.5 15.2 30th 70.4 87.1 average 81%
Nambour DPI - Hillside 25.4   28.6 14th 17.2   15.5 10th 196.6
Point Lookout 25.7 -0.5 27.9 22nd 19.2 -0.4 18.0 27th 302.7 182.6 high 166%
Rainbow Beach 25.7 -0.3 27.1 16th       150.0 141.1 average 106%
Redcliffe 24.9   26.9 11th 18.0   16.1 30th 150.0
Sunshine Coast Airport 25.5 -0.3 27.7 11th 17.7 +0.8 16.2 28th 245.6 160.6 high 153%
Tewantin RSL Park 25.1 -0.7 28.0 14th 18.3 +0.3 16.4 28th 297.4 173.3 high 172%
Toolara (Kelly) 25.9 -1.3 29.5 15th 17.4 0.0 14.8 30th 125.2 100.5 high 125%
University of Queensland Gatton 26.4 -0.7 29.5 21st 14.2 +0.5 10.3 13th 73.6 49.8 high 148%
East Darling Downs (district 41)
Applethorpe 20.0 -1.2 23.4 15th 10.3 +0.7 2.5 13th 56.8 44.3 high 128%
Dalby Airport 25.9 -1.5 28.6 22nd 12.6 +0.1 7.7 13th 23.2 20.4 average 114%
Goondiwindi Airport 26.8 -1.1 30.4 3rd 12.2 -0.8 8.3 13th 37.6 19.7 high 191%
Inglewood Forest 25.8 -1.7 28.5 3rd 12.0 -1.2 8.4 12th 29.2 29.4 average 99%
Oakey Aero 25.1 -0.8 28.3 22nd 12.0 +0.1 5.9 13th 20.4 32.4 average 63%
Stanthorpe Leslie Parade 20.9 -1.2 25.1 15th 10.5 +1.0 2.5 13th 44.2 42.3 average 104%
Texas Post Office 26.4 -1.2 30.1 3rd 11.9 +0.2 7.9 13th 60.2 34.2 high 176%
Toowoomba Airport 22.0 -1.4 25.3 22nd 13.4 0.0 10.0 13th 42.8 28.2 high 152%
Warwick 23.1 -2.0 26.9 21st 12.4 +1.1 5.3 13th 18.8 30.2 average 62%
West Darling Downs (district 42)
Miles Constance Street 26.4 -1.6 29.6 15th 13.0 -0.4 9.1 13th 72.6 34.1 high 213%
Maranoa (district 43)
Injune Post Office 25.8 -1.9 29.6 22nd 11.3 -0.7 7.2 13th 118.2 42.6 high 277%
Mitchell Post Office 26.5 -1.0 29.8 1st 10.9 -0.6 5.3 12th 33.3 34.7 average 96%
Roma Airport 26.2 -1.9 30.0 22nd 11.5 -1.1 7.4 13th 117.0 38.6 high 303%
St George Airport 27.4 -0.7 31.2 1st 13.0 -0.9 6.9 13th 32.6 20.8 high 157%
Surat 26.7 -1.6 30.6 3rd 12.4 -0.8 7.8 13th 73.4 31.6 high 232%
Warrego (district 44)
Bollon Mary St 27.8 0.0 33.2 1st 12.5 -0.7 6.0 24th 24.1 31.5 average 77%
Charleville Aero 26.3 -1.8 30.0 1st 12.3 -1.5 6.6 13th 21.0 31.3 average 67%
Cunnamulla Post Office 27.9 0.0 32.7 1st 14.1 0.0 8.3 12th 1.0 27.5 low 4%
Far Southwest (district 45)
Ballera Gas Field 28.1   31.9 5th     9.5 12th 0 12.2 v low 0%
Quilpie Airport 28.1 -1.1 33.0 1st 13.5 -2.2 8.1 13th 11.2 25.0 average 45%
Thargomindah Airport 28.4 -1.2 33.4 1st 14.4 -2.5 8.6 12th 3.0 19.0 average 16%
Offshore Islands (district 200)
Middle Percy Island 25.2   27.1 11th 20.6   17.5 19th 135.8 127.8 average 106%
Willis Island 29.2 +0.3 30.5 18th 25.0 +0.3 22.7 27th 114.6 127.6 average 90%

Notes

A Monthly Climate Summary is prepared to list 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.

This statement has been prepared based on information available at 10 am on Tuesday 3 May 2011. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

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 9 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.

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