Sydney - Greater Sydney in January 2012

Sydney in January 2012: Wettest January in a decade

  • Above average rainfall, wettest since 2001.
  • Close to average maximum temperatures, coolest since 2000.
  • Above average minimum temperatures.
  • Coldest January night since 1997 on the 12th.

Rainfall

Sydney Observatory Hill recorded 138.8 mm of rain during January, above the historical average of 101.2 mm and the wettest January since 2001. This is the first January since 2006 to have above average rainfall in Sydney. Rainfall was generally above average in the northeastern suburbs, breaking short-term records in Chatswood and Castle Hill, but closer to average in western and southern Sydney. The rain fell over thirteen days, average for January, of which five exceeded 10 mm - double the historical average and the most since 1995.

There were three significant rain events during the month. The first was associated with widespread thunderstorm activity, with 31.6 mm to 9am on the 9th at Observatory Hill, reaching 84 mm at Macquarie Park. Further rain fell as a low pressure trough crossed the coast during a period of easterly flow on the 15th and 16th, with daily falls reaching 29 mm at Observatory Hill on the 15th and up to 58.6 mm at Glenbrook on the 16th. Finally, a similar rain event caused falls of 29.6 mm at Observatory Hill on the 26th, reaching 66.4 mm at Glenorie.

Some sites had their highest total January rainfall on record.

Temperature

The average maximum temperature at Sydney Observatory Hill during January was 26.1 °C, slightly above the historical average of 25.9 °C. This is the 12th consecutive January with above average temperatures in Sydney, but the coolest since 24.8 °C was recorded in January 2000. There was only one day above 30 °C at Observatory Hill during the month, reaching 33.2 °C on the 30th, below the historical average of 3 hot days; however, two days reached 29 °C on the 4th and 10th. In western Sydney, most stations recorded below average temperatures, reflecting the shorter length of record, with particularly warm temperatures on the 3rd and 4th.

The average minimum temperature at Sydney Observatory Hill was 19.6 °C during January, 0.9 °C above the historical average for the 12th consecutive warm year, with closer to average conditions at the shorter-record stations in western Sydney. The coolest period was between the 12th and 13th, with two consecutive nights below 15 °C at Observatory Hill, reaching just 13.9 °C on the 12th. This was the coldest January night at Observatory Hill since 13.8 °C was recorded on the 12th of January 1997, and the first time since 1992 with two consecutive cold nights in January.

The average daytime temperatures and warmer nights were associated with the above average rainfall and below average sunshine during the month.

Wind

The prevailing wind direction at Sydney Airport was E-NE during January, forming 70% of 3pm winds, close to normal for January. There were two strong wind days reported at the Airport, with maximum wind gusts in the Sydney region reaching 81 km/hr at Port Botany on the 4th and 83 km/hr at Kurnell on the 11th.

Other phenomena

Sydney Airport reported an average of 7.2 hours of bright sunshine during January, below the historical average of 7.6 hours. There were 3 thunderstorms reported at the Airport, average for January, with six storms anywhere in the Metropolitan region, including reports of hail on the 5th.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in January 2012
Hottest day 37.3 °C at Penrith Lakes AWS on the 4th
Warmest days on average 28.8 °C at Penrith Lakes AWS
Coolest days on average 24.5 °C at Terrey Hills AWS
Coldest day 19.6 °C at Springwood (Valley Heights) on the 6th
19.6 °C at Terrey Hills AWS on the 6th
Coldest night 8.6 °C at Richmond RAAF on the 12th
Coolest nights on average 16.0 °C at Campbelltown (Mount Annan)
Warmest nights on average 19.7 °C at Sydney Airport AMO
Warmest night 25.3 °C at Sydney (Observatory Hill) on the 31st
Warmest on average overall 23.3 °C at Penrith Lakes AWS
23.3 °C at Sydney Airport AMO
Coolest on average overall 20.9 °C at Springwood (Valley Heights)
Wettest overall268.6 mm at Turramurra (Kissing Point Road)
Wettest day84.0 mm at Macquarie Park (Willandra Village) on the 9th
Highest wind gust 83 km/h at Kurnell AWS on the 11th

Record highest total January rainfall
Total rainfall
for January 2012 (mm)
Previous wettest
for January
Years of
record
Average for
January
Castle Hill (Kathleen Ave) 195.3 188.4 in 1986 25 90.3
Chatswood Bowling Club 191.0 182.2 in 1955 22 91.0



Summary statistics for January 2012
Maximum temperatures
for January
(°C)
Minimum temperatures
for January
(°C)
Rainfall
for January
(millimetres)
Mean for
January
2012
Diff
from
average
Highest for
January
2012
Mean for
January
2012
Diff
from
average
Lowest for
January
2012
Total for
January
2012
Average
for
January
Rank of
January
2012
Fraction of
January
average
Badgerys Creek AWS 27.7   35.0 4th 16.6   8.9 12th 119.8
Bankstown Airport AWS 27.4 -0.8 36.2 4th 17.8 -0.3 11.7 12th 94.6 90.8 average 104%
Camden Airport AWS 27.8 -1.7 36.4 4th 16.3 -0.5 8.8 13th 75.8 75.3 average 101%
Campbelltown (Mount Annan) 27.6   34.8 4th 16.0   8.8 12th 103.6
Canterbury Racecourse AWS 26.2   35.6 4th 17.7   12.1 7th 129.4
Holsworthy Control Range 27.1   35.4 4th 16.6   9.8 12th 82.8
Horsley Park Equestrian Centre AWS 27.2   35.2 4th 17.0   10.4 12th 135.0
Liverpool (Michael Wenden Centre) 27.8   35.9 4th 17.2   11.0 12th 68.3
Parramatta North (Masons Drive) 26.7 -1.7 36.1 4th 17.4 -0.1 11.0 12th 169.7 102.0 high 166%
Penrith Lakes AWS 28.8   37.3 4th 17.7   10.6 12th 138.0
Prospect Reservoir 27.4 -1.0 34.9 4th 17.7 +0.1 12.0 12th 140.6 94.1 high 149%
Richmond RAAF 27.6   36.2 4th 17.3   8.6 12th 152.4
Riverview Observatory 26.0 -0.6 33.2 4th 18.0 +0.4 12.1 13th 183.2 106.5 high 172%
Springwood (Valley Heights) 25.6   36.3 4th 16.2   9.8 12th 140.6 125.0 average 112%
Sydney (Observatory Hill) 26.1 +0.2 33.2 30th 19.6 +0.9 13.9 12th 138.8 101.5 high 137%
Sydney Airport AMO 26.9 +0.5 34.6 30th 19.7 +0.9 13.9 12th 103.6 93.9 average 110%
Terrey Hills AWS 24.5   31.8 4th 17.6   11.9 12th 167.8

Daily rainfall
Hunter (61)12345678910111213141516171819202122232425262728293031
Webbs Ck-Wisemans Ferry (Hawkesbury Rive 1.5 - - - - - - - 6.5 - - - - - 2.5 13.0 6.0 0.2 - - - 5.0 1.0 0.8 6.0 39.5 2.0 1.0 1.0 1.5 0.5
Central Tablelands (South) (63)12345678910111213141516171819202122232425262728293031
Springwood (Valley Heights) 0.2 - - - 0.6 2.4 - - 17.4 - - - - 4.6 8.8 28.6 1.4 - - - - 0.4 3.4 2.6 4.2 41.2 2.2 21.0 0.2 1.4 -
Metropolitan (East) (66)12345678910111213141516171819202122232425262728293031
Abbotsford (Blackwall Point Rd)




2.0

34.0



3.4 28.0 7.0 14.2



8.0

6.0 37.0


2.2
Ashfield Bowling Club












0.5 13.0









31.1 1.0



Auburn (Rosnay Golf Club) - - - - - - - - 8.0 1.0 - - - - 25.0 3.0 22.0 - - - - 3.0 2.0 - 3.0 37.0 8.0 1.0 - 2.0 -
Audley (Royal National Park) 1.0 - - - - 2.0 - 1.0 1.0 3.0 - - - 7.0 9.0 4.0 1.0 - - - - 1.0 1.0 3.0 22.0 36.0 2.0 - - 4.0 -
Avalon (Wollstonecraft Ave) 3.0 - - - - 44.0 - - 6.0 1.0 - - - - - 3.0 2.0 1.0 - - - 10.0 5.0 - 6.0 34.0 3.0 1.0 - 2.0 -
Avalon Beach (Avalon (Palmgrove Rd))




3.2















7.4 0.1 0.6 37.0 7.2

2.1 -
Bankstown Airport AWS - - - - - - - 0.2 11.8 - - - 0.2 3.2 5.0 2.2 25.2 - - - - 5.8 0.8 - 1.6 31.6 2.6 0.8 - 3.6 -
Belrose (Evelyn Place)




23.8

48.6 0.8


1.4 3.0 9.0 7.2 2.4

0.4 24.8 0.4 1.4 14.4 44.4 1.6 1.2
3.0 -
Campbelltown (Ingleburn (Long Point)) - - - - - 2.0 - 1.0 1.0 - - - - 5.0 12.0 - 11.0 - - - - 11.0 1.0 - 22.0 47.0 - 1.0 - 4.0 -
Canterbury Racecourse AWS 0.4 - - - - - - - 13.0 - - - - 0.4 35.4 5.0 30.2 - - - - - 0.2 - 2.8 39.4 0.6 0.4 - 1.4 0.2
Castle Cove (Rosebridge Ave)




7.0

52.0 1.0


4.0 24.0 19.0
1.0

1.0 20.0
1.0 13.0 52.0 8.0 2.0
2.5
Chatswood Bowling Club - - - - - 3.0 - - 51.0 - - - - 1.0 35.0 11.0 3.0 1.0 - - 1.0 20.0 - 2.0 11.0 49.0 1.0 1.0 - 1.0 -
Collaroy (Long Reef Golf Club)




8.8

39.2



2.3 3.4 1.8 1.2 0.4


10.2 1.0
5.6 42.8 4.2



Concord Golf Club




0.6

20.6



0.8 27.8 9.2 13.4



6.2 1.6
9.4 37.0 1.2 0.8
0.8
Cronulla South Bowling Club




1.4

3.8




»» 19.0 4.4




3.0
11.0 »» 37.0

3.2
Guildford (Woodville Golf Club) - - - - - 1.0 - - 9.0 - - - - - 20.0 3.0 17.0 - - - - 11.0 1.0 - 3.0 36.0 6.0 - - 3.0 -
Holsworthy Control Range - - - - - 0.8 - - 3.6 - - - - 4.0 8.4 2.2 11.2 - - - - 7.6 1.2 - 7.8 30.6 3.2 - - 2.2 -
Lidcombe (Carnarvon Golf Club) - - - - - - - - 4.0 1.0 - - - - 10.0 3.0 14.0 - - - - - - - 3.0 29.0 - 1.0 - 2.0 -
Liverpool-Scrivener St (Georges River) - - - - - - - - 1.0 - - - - - - - - - - - - - - - - - - - - - -
Lucas Heights (ANSTO) 0.4



0.6

1.4 2.2


10.0 13.6 1.8 21.0



9.0 0.6 1.8
50.0 1.6

2.0
Macquarie Park (Willandra Village)




6.0

84.0 0.8


3.2 »» 82.6 14.2 0.4

1.0 14.8 1.2 2.0 10.4 41.3 1.8



Manley / Warringah (Allambie) - - - - - 10.0 - - 27.5 1.5 0.5 - - 1.5 3.5 7.5 2.5 - - - - 12.0 - 2.0 8.5 39.0 2.5 0.5 - 2.0 -
Manley / Warringah (Belrose) - - - - -
- - 42.0 -
- - - 5.5 8.0 6.0
- - - 20.0 0.5 2.0 13.0 40.0 1.0 1.0
2.5 -
Marrickville Golf Club 1.0 - - - - 2.0 - - 16.0 - - - - 2.0 28.0 8.0 8.0 - - - - 6.0 - - 3.0 34.0 1.0 1.0 - 2.0 -
Milperra Bridge (Georges River) - - - - - - - - 7.0 - - - - 7.0 4.0 5.0 22.0 - - - - 9.0 1.0 - - 33.0 3.0 1.0 - 3.0 -
Mona Vale Golf Club 0.8 0.2 - - - 28.2 - - 13.6 4.2 - - - - 6.0 8.4 4.0 2.8 0.2 - 0.2 17.2 2.0 4.0 9.4 40.0 2.2 0.4 - 3.4 -
Oatley (Woronora Parade)















18.6













Parramatta (Erts) - - - - - 7.5 - - 16.5 - - - - - 18.5 13.0 8.5 - - - - 11.5 - 1.0 4.0 39.5 2.5 0.5 - 2.0 -
Parramatta North (Masons Drive) - - - - - 6.4 - 0.2 39.0 1.0 - - - 0.5 11.8 20.6 12.3 - 0.2 - - 10.4 - 1.2 5.3 45.2 10.4 2.0 - 3.2 -
Peakhurst Golf Club - - - - - 1.0 - - 6.0 - - - - 5.0 7.0 4.0 25.0 - - - - 5.0 1.0 - 2.0 34.0 4.0 - - 3.0 -
Randwick Bowling Club




4.2

19.8



3.8 39.6 9.4 2.2 0.2


8.4 2.2
4.6 31.4 5.4 0.6 0.2 2.6 -
Riverview Observatory - - - - - - - - 42.8 - - - - 2.6 43.4 10.0 5.8 0.4 - - - 17.2 - »» 12.2 42.6 3.4 1.6 - 1.2 -
Rose Bay (Royal Sydney Golf Club)







40.0 0.2


3.4 50.4 27.6 2.8 0.4


14.8 0.2
3.4 29.6 7.4
1.0 3.6
Sans Souci (Public School) - - - - - 2.0 - - 7.0 - - - - 5.0 9.0 8.0 3.0 - - - - - - - 17.0 39.0 2.0 - - 3.0 -
St Ives (Richmond Avenue) 1.0



11.0

49.4 5.0


0.2 27.0 28.0 12.2 0.4


20.2 1.4 4.4 14.4 48.2 2.4 6.8 0.4 2.8 -
Strathfield Golf Club - 2.0 - - - - - - 7.0 - - - - 3.0 9.0 8.0 13.0 - - - - 1.0 - - 7.0 35.0 2.0 1.0 - 2.0 -
Sydney (Observatory Hill) - - - - - 0.8 - - 31.6 0.2 - - - - 29.0 18.6 6.0 - - - - 12.0 0.2 - 7.2 29.6 2.0 0.2 - 1.4 -
Sydney Airport AMO - - - - - 4.8 - - 7.8 0.2 - - - 0.8 31.6 7.4 2.4 0.2 - - - 7.4 - - 4.2 32.0 3.0 0.2 - 1.6 -
Terrey Hills AWS - - - - - 16.4 - - 21.8 2.0 - - - 3.2 5.4 15.8 13.6 - 0.2 - 0.2 17.6 3.2 5.0 17.0 35.8 5.2 1.0 1.2 3.2 -
Turramurra (Kissing Point Road) 1.4



20.6

38.0 3.4


1.0 45.4 32.6 19.6 0.8

1.6 22.2 0.4 3.6 10.6 58.6 3.8 2.2
2.8 -
Metropolitan (West) (67)12345678910111213141516171819202122232425262728293031
Abbotsbury (Fairfield City Farm) - - - - - 11.0 - - 22.0 - - - - - 30.0 17.0 4.0 - - - - 3.0 - 2.0 7.0 48.0 10.0 1.0 - 2.0 -
Badgerys Creek AWS 0.2 - - - - 1.8 - - 6.4 0.2 - - - 0.8 13.0 10.6 2.2 0.2 - - - 4.2 1.4 1.0 6.8 61.4 8.0
- 1.6 -
Baulkham Hills (Swimming Pool ) - - - - - 5.5 - - 44.5 - - - - - 11.0 28.5 5.0 0.5 - - 0.5 6.0 - 2.5 11.0 44.5 3.0 3.5 - 3.0 -
Baulkham Hills Eucalyptus Ct - - - - - 5.0 - - 44.5 - - - - - 5.5 14.0 4.0 - - - - 6.0 0.5 - 11.0 46.5 4.0 0.5 - 3.0 -
Berowra (Goodwyn Road)




21.2

24.0



2.2 7.4 41.2 20.4


0.6 »» 22.0
4.6 »» 74.4



Blacktown (Dog Pound) - - - - - 8.5 - - 10.5 - - - - 1.5 33.5 17.5 4.0 - - - 0.5 12.0 0.5 0.5 16.5 35.5 11.5 3.5 - 2.5 -
Box Hill (Hynds Road) 1.0 - - - - 4.0 - - 42.0 - - - - - 7.0 11.0 1.0 - - - - 3.0 - - 2.0 47.0 2.0 7.0 - 3.0 -
Castle Hill (Kathleen Ave)
0.2

0.2 5.6

60.9



0.1 6.7 27.0 5.8


0.8 12.0 1.8 3.2 12.4 47.8 2.6 4.0 1.0 3.2
Glenorie (Old Northern Rd)




17.0

54.0




43.0 12.0
1.2

6.4 2.6 1.6
5.0 66.4 9.0 3.5


Greystanes (Cumberland Golf Club) - - - - - 3.5 - - 8.5 - - - - - 23.0 16.0 8.0 - - - 1.0 4.5 - 2.5 8.5 49.0 8.0 4.0 - 3.0 -
Horsley Park Equestrian Centre AWS 0.2 - - - -
- - 15.8 0.2 - - - 0.2 34.6 17.6 3.0 - - - - 1.8 1.2 1.2 10.8 40.0 4.6 1.2 - 2.6 -
Kelso Ck (Kelso Creek U/S Levee (Georges - - - - - 0.5 - - 5.0 - - - - 1.5 3.0 4.0 16.5 - - - - 7.0 0.5 - 4.0 25.5 1.0 - - 2.5 -
Kings Langley (NSW Soccer Federation) 0.5 - - - - 4.0 - 0.5 34.5 - - - - - 4.0 19.0 3.5 - - - 1.5 8.0 0.5 1.0 12.0 45.0 3.5 2.5 - 3.0 -
Kings Langley (Solander Rd) - - - - - 5.0 - 0.2 45.2 - - - - - 15.6 14.2 3.4 - - - 0.6 4.4 0.2 0.4 16.8 38.4 3.6 0.8 - 3.0 -
Liverpool (Michael Wenden Centre) - - - - - 0.8 - »» 5.0 - - - »» 2.6 4.4 14.4 8.8 0.1 - - - 1.0 1.2 - 1.0 26.4 - - - 2.6 -
Lower Portland (Hawkesbury River) 0.2 - - - 0.2 - 0.2 - 13.4 - - - - -



- - 0.2 6.4 2.2 0.2 5.8 34.6 2.0 2.6 1.6 1.2 -
Maroota (Tobruk) - - - - - 0.2 0.2 - 0.8 0.4 - - - - 0.8 0.2 - - - - - - - -






Merrylands (Welsford Street)




19.6

18.2




»» 50.6



»» »» »» 36.6 9.8





North Parramatta (Burnside Homes) - - - - - 5.5 - - 36.0 1.0 - - - - 10.5 19.5 11.5 - - - - 9.0 0.5 0.5 5.0 42.0 10.0 1.0 - 3.0 -
North Rocks (Muirfield Golf Club) - - - - - 5.0 0.5 - 52.0 1.0 - - - - 19.5 16.0 7.5 - - - 0.5 8.0 0.5 0.5 8.0 55.5 7.5 1.5 - 3.0 -
Northmead Bowling Club - - - - - 5.0 - 1.0 49.0 2.5 - - - - 5.5 10.0 6.0 - - - - 6.0 1.0 0.5 9.5 45.0 9.0 1.0 - 2.0 0.5
Parramatta (Baulkham Hills West (Sierra - - - - - 4.5 - - 40.0 - - - - - 14.0 14.0 4.0 - - - - 4.5 - - 10.5 40.5 9.5 0.5 - 2.5 -
Penrith Lakes AWS - - - - - 2.2 - 0.2 17.2 - - - - 0.6 27.0 23.2 1.8 - - - 0.2 0.8 2.4 1.2 5.2 34.2 4.4 15.2 0.6 1.6 -
Prospect Reservoir - - - - - 2.9 »» 0.1 8.4 - - - - 0.3 24.2 16.8 4.0 - - - - 12.6 0.8 2.8 9.9 40.0 12.4 2.5 - 2.9 -
Richmond RAAF 0.8 - - - - 3.0 - - 25.0 - - - - - 11.6 13.0 7.4 - - - - 0.8 0.2 - 19.0 50.6 3.2 15.6 0.4 1.6 0.2
Sackville 1.4 - - - - 0.4 - - 22.4 - - - - 1.0 21.6 4.4 5.0 - - - - 2.0 0.4 0.4 6.2 51.8 1.8 5.2 0.8 1.2 0.2
Seven Hills (Radio FM 103.2) - - - - - 6.0 0.5 - 24.5 - - - - - 29.5 12.5 2.5 - - - - 9.0 0.5 - 12.5 40.5 13.0 6.0 - 2.5 -
Seven Hills (Collins St)







50.2


»» »» »» »» 37.2



15.8

8.0 48.4 13.2 3.6
3.2
South Creek (Elizabeth Drive)




4.0

9.0




12.5 5.0 1.0




0.5 0.5 7.0 28.0 4.5

1.0
St Clair (Juba Close) - - - - - 5.0 - - 4.0 - - - - - 32.0 10.0 2.0 - - - - - - 1.0 9.0 25.0 5.0 2.0 - 2.0 -
Toongabbie Bowling Club - - - - - 7.5 - - 31.0 0.5 - - - - 13.0 11.5 4.5 - - - 0.5 5.0 - 0.5 8.0 42.0 9.5 2.0 - 3.0 -
Toongabbie Ck (Redbank Road (Toongabbee - - - - - 7.5 - - 22.5 - - - - - 10.0 19.0 8.5 - - - - 8.0 - 1.0 6.0 47.5 7.5 0.5 0.5 2.0 0.5
West Pennant Hills (Cumberland S F Alert - - - - - 4.0 - - 51.0 0.5 - - - - 17.0 29.0 5.5 - - - 1.0 18.0 2.5 1.0 8.0 39.5 1.0 4.5 - 1.5 -
Willmot (Resolution Ave) - - - - - 1.0 - - 22.0 - - - - - 22.0 10.0 - - - - 4.0 2.0 - 1.0 4.0 27.0 4.0 13.0 - 2.0 -
Windsor SWC (Hawkesbury River) - - - - - 3.0 - - 21.0 - - - - - 4.0 17.0 5.0 - - - - - 1.0 - 16.0 29.0 2.0 12.0 - 2.0 -
Illawarra (68)12345678910111213141516171819202122232425262728293031
Camden Airport AWS - - - - - 0.2 0.4 0.4 3.4 - - - -
17.2 11.0 3.4 - - - - 0.2 2.0 - 1.0 33.2 2.4 0.4 - 0.6 -
Camden Valley Golf Resort - - - - - - - 1.0 -





















Campbelltown (Kentlyn (Georges River Roa - - - - - - - - 2.0 - - - - 2.0 11.0 1.0 8.0 - - - - 17.0 1.0 1.0 21.0 31.0 2.0 1.0 - 3.0 -
Campbelltown (Mount Annan) - - - - - - 0.2 0.2 6.4 - - - - - 28.0 1.2 5.8 - - - - 1.0 2.2 0.6 0.2 55.0 1.4 - - 1.4 -
Rossmore (South Creek) - - - - - 1.0 - - 3.0 - - - - - 4.0 38.0 4.0 - - - - - 2.0 - 2.0 48.0 5.0 - - 2.0 -

Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with »» are part of a longer accumulation, which is marked like this on the final day. Values over 100 mm have been rounded to the nearest whole millimetre. Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
This table is very wide; you may have to scroll sideways to see all the days, and you may need to set the paper to 'landscape' to print.


Notes

A Monthly Climate Summary is prepared to list the main features of the weather in Sydney - Greater Sydney 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 Wednesday 1 February 2012. 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 20 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.

Further information

Media
(03) 9669 4057
Enquiries