Sydney in July 2012: Warm, dry July for Sydney

  • Below average rainfall
  • Warm days and nights across the city
  • 28th consecutive July with above average mean temperatures

Driest July since 2004

Sydney Observatory Hill recorded 56.2 mm of rainfall during July, half the historical average of 98.6 mm. There were thirteen days of rain during the month, normal for July. Only one day exceeded 10 mm (average 2-3 days), with coastal showers producing 19 mm on the 6th, reaching 35 mm at Cronulla in the eastern suburbs. Most of the remaining rain fell during a period of persistent showers between the 21st and 25th, with a total of 21.4 mm at Sydney Observatory Hill and 29.2 mm at Cronulla.

Warm conditions across the city

The average maximum temperature at Sydney Observatory Hill during July was 17.6 °C, 1.3 °C above the historical average, with temperatures above average across the city. This is the 14th consecutive warm July, and the warmest July since 2009. Only three days were below 15 °C during the month, well below the historical average of 10 days, while 6 days exceeded 20 °C (average 2 days), reaching 22.9 °C on the 13th.

The average minimum temperature was 8.9 °C, 0.9 °C above the historical average and the 10th consecutive warm July, with nights warmer than average across the city. No nights dropped below 5 °C during the month, while six nights exceeded 10 °C, close to normal for July.

The average temperature at Sydney Observatory Hill was consequently 13.3 °C, 1.1 °C above average. This is the 28th consecutive warm July at Sydney Observatory Hill; the last time the temperature was 12.2 °C or lower was 12.2 °C in July 1984.

Wind

The prevailing wind direction during July was southerly, with 58% of 3pm winds between SE and SW, while remaining winds were between W and NE, above normal for July. There were three strong wind days, with a maximum wind gust of 65 km/hr on the 30th.

Other phenomena

Sydney Airport recorded an average of 6.7 hours of bright sunshine during the month, close to the July average of 6.6 hours. There were two fog days, normal for July, with a particularly heavy event on the 25th. AWS visibility remained below 2 km between 5:30 and 8:49 am, with fog persisting until 10 am, causing disruption to flights.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in July 2012
Hottest day 23.7 °C at Sydney Airport AMO on the 13th
Warmest days on average 17.7 °C at Richmond RAAF
Coolest days on average 15.6 °C at Terrey Hills AWS
Coldest day 12.4 °C at Camden Airport AWS on the 12th
Coldest night -1.2 °C at Camden Airport AWS on the 2nd
Coolest nights on average 3.3 °C at Camden Airport AWS
Warmest nights on average 8.9 °C at Sydney (Observatory Hill)
8.9 °C at Sydney Airport AMO
Warmest night 13.3 °C at Terrey Hills AWS on the 13th
Warmest on average overall 13.3 °C at Sydney (Observatory Hill)
Coolest on average overall 10.1 °C at Camden Airport AWS
Wettest overall 91.2 mm at Cronulla South Bowling Club
Wettest day 35.0 mm at Cronulla South Bowling Club on the 6th
Highest wind gust 80 km/h at Port Botany (Molineux Point AWS) on the 30th

Summary statistics for July 2012
Maximum temperatures
for July
(°C)
Minimum temperatures
for July
(°C)
Rainfall
for July
(millimetres)
Mean for
July
2012
Diff
from
average
Highest for
July
2012
Mean for
July
2012
Diff
from
average
Lowest for
July
2012
Total for
July
2012
Average
for
July
Rank of
July
2012
Fraction of
July
average
Badgerys Creek AWS 16.9   21.9 13th 4.2   -0.2 2nd 17.8
Bankstown Airport AWS 17.5 +0.4 23.1 13th 5.6 +0.5 1.7 2nd 28.0 45.7 average 61%
Camden Airport AWS 17.0 -0.2 22.5 13th 3.3 +0.3 -1.2 2nd 19.0 38.7 average 49%
Campbelltown (Mount Annan) 17.2   22.3 13th 3.9   0.4 2nd 20.4
Canterbury Racecourse AWS 17.0   23.1 13th 6.2   2.0 2nd 40.8
Holsworthy Control Range 16.9   22.4 13th 4.8   0.4 2nd 20.4
Horsley Park Equestrian Centre AWS 16.7   22.1 13th 5.9   2.0 2nd 22.6
Liverpool (Michael Wenden Centre) 17.6   22.9 13th 4.6   0.1 3rd 13.7
Parramatta North (Masons Drive) 17.3 0.0 22.6 13th 6.3 +0.1 2.4 20th 29.6 46.8 average 63%
Penrith Lakes AWS 17.3   23.5 13th 5.8   1.8 2nd 19.2
Prospect Reservoir 17.0 +0.2 22.9 13th 6.6 +0.5 3.0 2nd 23.2 57.0 average 41%
Richmond RAAF 17.7   23.0 13th 4.0   -1.1 20th 15.8
Riverview Observatory 17.1 +0.4 22.3 13th     3.2 20th 44.6 85.5 average 52%
Springwood (Valley Heights) 15.8   23.0 13th 6.7   3.1 20th 17.4 56.5 average 31%
Sydney (Observatory Hill) 17.6 +1.3 22.9 13th 8.9 +0.9 5.8 20th 56.2 98.3 average 57%
Sydney Airport AMO 17.3 +0.3 23.7 13th 8.9 +1.8 5.4 20th 51.4 71.0 average 72%
Terrey Hills AWS 15.6   20.1 13th 8.0   5.0 2nd 16.6

Daily rainfall
Hunter (61)12345678910111213141516171819202122232425262728293031
Webbs Ck-Wisemans Ferry (Hawkesbury Rive - - - - - 2.0 - - - - 5.0 - 2.0 - - - - - - - - - 1.0 0.5 0.5 - 2.0 - - - -
Central Tablelands (South) (63)12345678910111213141516171819202122232425262728293031
Springwood (Valley Heights) - - - - - 2.0 - - - - 7.4 - 3.8 - - - - - - - - - 2.0 2.0 0.2 - - - - - -
Metropolitan (East) (66)12345678910111213141516171819202122232425262728293031
Abbotsford (Blackwall Point Rd)









6.3









3.6

4.0





Auburn (Rosnay Golf Club) - - - - - 10.0 - - - - 6.0 - 1.0 - - - - - - - - - 3.0 3.0 - - - - - - -
Audley (Royal National Park) - - - - 1.0 17.0 7.0 - - - 8.0 - 1.0 - - - - - - - - 2.0 7.0 13.0 - - - - - - -
Avalon (Wollstonecraft Ave) - - - - 5.0 5.0 1.0 - - - 6.0 - - - - - - - - - 2.0 2.0 2.0 - 3.0 - - - - - 3.0
Bankstown Airport AWS - - - - - 10.8 1.2 - - - 6.8 - 1.0 - - - - - - - - - 2.2 4.4 1.6 - - - - - -
Belrose (Evelyn Place)



3.5 13.2 0.3


8.0
0.5






2.4 1.4 6.8 3.6 2.6




2.0
Campbelltown (Ingleburn (Long Point)) - 2.0 - - - 7.0 - - - 1.0 10.0 - 1.0 - - - - - - - - - 4.0 5.0 - - - - - - -
Canterbury Racecourse AWS - - - - 1.2 20.0 0.2 0.4 0.2 - 7.8 0.2 0.4 - - - - - - - - 0.8 2.4 4.8 1.8 - 0.2 - - - 0.4
Castle Cove (Rosebridge Ave)



4.5 16.0



8.5
1.0






3.0 2.0 6.0 5.0 8.0




3.0
Chatswood Bowling Club - - - - 4.0 16.0 - - - 1.0 6.0 - - - - - - - - - 3.0 2.0 2.0 4.0 3.0 - - - - - 1.0
Collaroy (Long Reef Golf Club)



9.4 11.2 1.8


7.8








2.0 1.2 2.6 3.2 1.0




4.2
Concord Golf Club



0.8 14.4 1.2 0.4

7.8 0.2 0.4







1.0 1.2 3.4 0.4
1.2



Cronulla South Bowling Club



5.6 35.0 12.2 0.2

7.6 0.2 1.0





0.2
»» 10.4 18.6 0.2





Guildford (Woodville Golf Club) - - - - - 9.0 1.0 - - - 6.0 4.0 - - - - - - - - - - 1.0 4.0 1.0 - - - - - -
Holsworthy Control Range - - 0.2 - - 7.0 0.2 - - 0.2 7.0 - 1.0 - - - - - - - - - 1.4 2.8 0.4 - 0.2 - - - -
Lidcombe (Carnarvon Golf Club) - - - - - 5.0 - - - - 5.0 - - - - - - - - - - - - 1.0 - - - - - - -
Lucas Heights (ANSTO)



0.2 14.0 1.0


8.0
0.6








4.8 9.8






Macquarie Park (Willandra Village)



1.0 13.4
0.4

6.6
0.8







»» 4.8 3.6 2.4





Manley / Warringah (Allambie) - - - - 5.5 10.5 0.5 - - - 6.0 - - 0.5 - - - - - - 0.5 1.5 2.5 3.5 2.0 - - - - - 3.0
Marrickville Golf Club - - - - 3.0 22.0 1.0 - - - 8.0 1.0 - - - - - - - - - 4.0 1.0 8.0 2.0 - 1.0 - - - 1.0
Mona Vale Golf Club - 0.2 - - 6.6 6.2 1.6 1.0 0.4 0.4 6.0 0.2 0.2 - - - 0.2 - - - 2.0 1.8 2.0 0.4 1.4 - - - - - 2.6
Parramatta (Erts) - - - - - 6.0 - - - - 5.5 - 0.5 - - - - - - - - - 0.5 1.0 - - 1.0 - - - -
Parramatta North (Masons Drive) - - - - - 11.4 0.8 - - - 9.0 0.4 0.8 - - - - - - - - 0.4 1.0 3.4 2.0 - 0.4 - - - -
Peakhurst Golf Club - - - - - 13.0 1.0 - - - 6.0 - 1.0 - - - - - - - - 1.0 2.0 10.0 - - - - - - -
Randwick Bowling Club -


9.2 34.2 2.8 0.4

7.2








5.2 2.0 1.0 9.8 9.0





Riverview Observatory 0.2 - - - 3.8 15.4 1.2 - »» 0.4 5.6 - 0.2 - - - - - - - 1.0 »» 6.2 4.8 3.4 - 1.2 - - - 1.2
Rose Bay (Royal Sydney Golf Club)



8.4 25.6 1.2 0.8 0.2
5.8
0.2





0.2 2.0 0.4 3.6 7.4 5.8




7.0
Sans Souci (Public School) - - - - 2.0 28.0 4.0 1.0 - - 8.0 - - - - - - - - - - 3.0 2.0 16.0 2.0 - - - - - 1.0
St Ives (Richmond Avenue)



3.2 13.6 0.2


7.0 0.2 0.6






3.0 1.0 7.0 3.0 1.8




0.8
Strathfield Golf Club - - - - - 18.0 - - - - 10.0 - - - - - - - - - - - 2.0 3.0 2.0 - - - - - -
Sydney (Observatory Hill) - - - - 4.0 19.0 1.2 0.2 - - 5.4 - 0.2 - - - - - - - 5.0 2.6 2.6 6.8 4.4 - 0.4 - - - 4.4
Sydney Airport AMO - - - - 3.2 20.4 1.2 - - - 7.6 - - - - - - - - - - 6.0 »» 6.6 3.4 - - - - - 2.4
Terrey Hills AWS - - - - 1.2 2.2 1.8 0.4 0.4 0.2 0.2 0.2 0.2 0.2 -

- - - 0.8 1.0 3.2 1.8 1.6 - - - - - 1.2
Turramurra (Kissing Point Road)



1.6 11.6 0.2


7.2 0.2 1.0







1.7 2.7 2.9 2.7

0.2

0.2
Metropolitan (West) (67)12345678910111213141516171819202122232425262728293031
Abbotsbury (Fairfield City Farm) - - - - - 6.0 - - - 1.0 7.0 - 2.0 - - - - - - - - - 2.0 2.0 - 1.0 - - - - -
Badgerys Creek AWS - - - - - 1.2 - - - - 8.0 0.2 2.0 - - - - - - - - - 3.6 2.0 0.2 - 0.6 - - - -
Baulkham Hills (Swimming Pool ) - - - - - 12.0 1.0 - - - 8.5 - 1.0 - - - - - - - - 0.5 0.5 3.5 1.0 - - - - - -
Baulkham Hills Eucalyptus Ct - - - - - 11.0 0.5 - - - 7.5 - 1.0 - - - - - - -




-

- -
Berowra (Goodwyn Road)




»» 6.4


6.0








1.2
6.2 1.2






Blacktown (Dog Pound) - - - - - 8.0 1.0 - - - 6.5 - 1.0 - - - - - - - - - 1.0 2.5 0.5 - - - - - 0.5
Box Hill (Hynds Road) - - - - - 6.0 1.0 - - - 7.0 - 3.0 - - - - - - - - - - 2.0 - - 1.0 - - - -
Castle Hill (Kathleen Ave)



0.8 10.2 0.3

0.2 8.5 0.3 1.2 1.2






1.0 1.2 5.2 1.0





Glenorie (Old Northern Rd)









7.0
1.0







1.0 2.0 2.0






Greystanes (Cumberland Golf Club) - - - - - 7.0 0.5 - - - 6.5 - 1.0 - - - - - - - - - 0.5 2.5 - - - - - - 0.5
Horsley Park Equestrian Centre AWS - - - - - 6.6 0.4 - - - 7.0 - 1.8 - - - - - - - - - 3.4 2.6 - - 0.8 - - - -
Kelso Ck (Kelso Creek U/S Levee (Georges - - - - - 5.5 2.0 - - - 6.5 - 1.5 - - - - - - - - - 2.5 5.0 0.5 - - - - - -
Kings Langley (NSW Soccer Federation) - - - - - 9.0 0.5 - - - 7.5 - 2.0 - - - - - - - - - 1.0 2.5 - - - - - - 0.5
Liverpool (Michael Wenden Centre) - - 0.1 - - 5.6 - - - - - - 1.2 - - - - - - - - »» 2.6 3.2 0.4 - 0.6 - - - -
Lower Portland (Hawkesbury River) - - - 0.2 - 3.2 - - - - 0.8 - 0.2 - - - - - - - - - 0.2 0.6 - 0.2 - - 0.2 - -
Maroota (Tobruk) - - - - - 2.6 - - 0.4 0.4 6.6 - 1.6 - - - - - - - - - 3.0 1.0 0.8 - 1.2 - - - -
Merrylands West (Finlayson Creek) - - - - - 7.0 0.5 - - - 6.5 - 0.5 0.5 - - - - - - - - 0.5 3.0 0.5 - - - - - 1.0
North Parramatta (Burnside Homes) - - - - - 11.5 1.0 - - - 9.0 - 1.0 - - - - - - - - - 0.5 4.0 1.0 - - - - - 0.5
North Rocks (Muirfield Golf Club) - - - - - 11.0 0.5 - - - 8.5 - 0.5 - - - - - - - - 0.5 1.5 3.0 1.5 - - - - - 1.5
Northmead Bowling Club - - - - - 9.5 0.5 - - - 6.5 - 1.0 - - - - - - - - - 1.0 2.0 0.5 - - - - - 0.5
Penrith Lakes AWS - - - - - 2.6 - - 0.4 - 7.2 - 2.8 - - - 0.2 0.2 - 0.2 - - 4.4 0.6 0.2 - 0.4 - - - -
Prospect Reservoir - - - - 0.1 8.8 0.8 - - - 6.4 0.2 1.0 - - - - - - - - - 1.2 4.2 0.2 - 0.1 - - 0.2 -
Richmond RAAF - - - - - 5.6 0.2 - - 0.2 6.0 0.6 1.6 - - - - - - - - - 0.8 0.4 0.4 - - - - - -
Sackville 0.2 - - - 0.2 4.2 - 0.2 - 0.2 6.0 0.4 1.2 - 0.2 - 0.2 - - 0.2 - - 0.4 0.6 - 0.2 - - 0.2 - -
Seven Hills (Radio FM 103.2) - - - - - 8.0 - - - 0.5 6.0 - 1.5 - - - - - - - - - 0.5 5.0 - - 1.0 - - - 0.5
Seven Hills (Collins St)




9.2



7.0 0.4









4.0 2.4

3.4



South Creek (Elizabeth Drive)




1.5 0.5


3.0










2.0 0.5






St Clair (Juba Close) - - - - - 2.0 - - - - 6.0 - 1.0 - - - - - - - - - 1.0 - 1.0 - - - - - -
Toongabbie Bowling Club - - - - - 7.5 0.5 - - - 6.0 - 2.0 0.5 - - - - - - - - 1.5 3.0 0.5 - 2.5 - - 0.5 -
Toongabbie Ck (Redbank Road (Toongabbee - - - - - 9.5 - - - - 6.5 - 1.0 - - - - - - - - - 1.0 2.0 0.5 - 3.0 - - - -
West Pennant Hills (Cumberland S F Alert - - - - - 10.5 0.5 - - - 8.0 0.5 1.0 - - - - - - - - 0.5 2.5 2.0 1.5 - - - - - 0.5
Willmot (Resolution Ave) - - - - - 5.0 - - - - 5.0 - - - - - - - - - 1.0 - 1.0 1.0 30.0 - 1.0 - - - -
Windsor SWC (Hawkesbury River) - - - - - 4.0 - - - - 6.0 - 2.0 - - - - - - - - - - - - - 1.0 - - - -
Illawarra (68)12345678910111213141516171819202122232425262728293031
Camden Airport AWS - - - - - 0.4 - - - - 10.0 0.4 1.2 - - - - - - - - - 1.8 0.2 0.4 - 4.4 - - 0.2 -
Campbelltown (Kentlyn (Georges River Roa - - - - - 6.0 - - - - 8.0 - 1.0 - - - - - - - - - 2.0 4.0 - - 3.0 - - - -
Campbelltown (Mount Annan) - - 0.2 - - 1.2 - 0.2 - - 9.6 0.2 0.8 0.2 - - - - - - - 0.2 2.2 0.6 0.2 - 4.4 - - 0.4 -
Rossmore (South Creek) - - - - - 2.0 - - - - 7.0 - 2.0 - - - - - - - - - 3.0 2.0 - - 1.0 - - - -

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 August 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