Tuesday, 6 January 2015 - Annual Climate Summary for Sydney - Product code IDCKGC55L0
Sydney in 2014: a very warm, dry year
Sydney experienced its second-warmest year on record in 2014, following its warmest year in 2013, with well below average rainfall but some heavy rain events in southern Sydney.
- Equal-warmest year on record for minimum temperatures (with 2007 and 2009)
- Second-warmest year on record for mean and maximum temperatures, behind 2013
- Second-fewest number of cool days on record
- Driest year since 2005
Both maximum and minimum temperatures were well above average across Sydney during 2014, with a mean temperature at Sydney Observatory Hill of 19.3 °C, 1.6 °C above the historical average. This is the second-warmest year on record for Sydney, only slightly cooler than the record 19.4 °C set in 2013, with both maximum and minimum temperatures falling in the three warmest years on record. Temperatures were warm throughout the year but particularly during autumn, which was the warmest on record for Sydney. The persistently warm temperatures were a result of several heatwaves and a lack of cold days; only 81 days failed to reach 20 °C, the second-fewest on record following 66 days in 2013. Notably, temperatures reached 45.3 °C at Richmond on 23 November, one of only three days so warm on record for any month and almost 2 °C above the previous November record.
Rainfall was average to below average during 2014, with 893.8 mm at Observatory Hill, 26% below its historical average and the driest year since 2005. The rain fell over 145 days, which is close to normal for Sydney, although only 6 recorded at least 25 mm (average 12 days), with most months recording below-average rainfall totals. However, totals of over 100 mm were recorded in southern Sydney associated with thunderstorms on 25 March and an East Coast Low on 15 October. August was the wettest since 1998 with several rainfall events contributing to the wet conditions, while persistent thunderstorm activity resulted in well above rainfall during December.
Notable events in 2014
This is a brief list of major weather events; for more information see the appropriate Monthly Climate Summaries.
- Record-breaking warm spells on 3–23 March, 10–28 May, 29–30 September, and 20–24 November
- A large grassfire in Kingswood on 1 August
- Heavy rain and flash flooding in southern Sydney on 24 March and 14 October
- Severe thunderstorms and large hail caused damage in western Sydney on 30 March
- A prolonged spell of thunderstorms between 2–8 December, including heavy rain, hail, and numerous lightning strikes.
- Late cold snap with snow in the Blue Mountains on 14–15 October
|Extremes in 2014|
45.3 °C at Richmond RAAF on 23 Nov|
|Warmest days on average||
25.2 °C at Penrith Lakes AWS|
|Coolest days on average||
22.0 °C at Terrey Hills AWS|
12.0 °C at Terrey Hills AWS on 11 Aug|
-3.4 °C at Camden Airport AWS on 9 Jul|
-3.4 °C at Camden Airport AWS on 12 Jul
|Coolest nights on average||
10.7 °C at Camden Airport AWS|
|Warmest nights on average||
15.2 °C at Sydney (Observatory Hill)|
22.3 °C at Sydney (Observatory Hill) on 2 Jan|
22.3 °C at Sydney Airport AMO on 2 Jan
22.3 °C at Sydney (Observatory Hill) on 2 Feb
22.3 °C at Sydney Airport AMO on 16 Feb
|Warmest on average overall||
19.4 °C at Sydney Airport AMO|
|Coolest on average overall||
17.6 °C at Campbelltown (Mount Annan)|
1171.0 mm at Turramurra (Kissing Point Road)|
571.0 mm at Milperra Bridge (Georges River)|
143.0 mm at Sans Souci (Public School) on 15 Oct|
|Strongest wind gust||
115 km/h at Kurnell AWS on 14 Oct|
|Record highest annual mean daily minimum temperature|
|Sydney (Observatory Hill)||15.2||= 15.2||in 2007||155||13.8|
|Sydney Airport AMO||15.1||15.0||in 2007||74||13.4|
|Record highest annual mean temperature|
|Prospect Reservoir||18.5||= 18.5||in 2013||45||17.7|
|Bankstown Airport AWS||18.5||= 18.5||in 2013||44||17.6|
|Camden Airport AWS||17.7||= 17.7||in 2009||35||16.9|
|Summary statistics for 2014|
|Badgerys Creek AWS||24.3||+0.5||41.6||23 Nov||11.6||+0.9||-1.5||9 Jul||692.6||676.4||average||102%|
|Bankstown Airport AWS||24.4||+1.2||40.4||21 Nov||12.6||+0.6||-1.1||9 Jul||782.4||873.3||low||90%|
|Camden Airport AWS||24.7||+1.0||40.7||23 Nov||10.7||+0.5||-3.4||9 Jul|
|Campbelltown (Mount Annan)||24.3||40.3||23 Nov||10.9||-2.2||9 Jul||608.0|
|Canterbury Racecourse AWS||23.3||+0.3||38.6||21 Nov||12.6||+0.3||0.0||12 Jul||982.6||958.6||average||103%|
|Holsworthy Aerodrome AWS||23.9||39.9||14 Nov||12.2||-1.4||9 Jul||613.0|
|Horsley Park Equestrian Centre AWS||24.2||+0.5||40.2||14 Nov||12.4||+0.4||0.4||12 Jul||715.8||750.3||average||95%|
|Parramatta North (Masons Drive)||24.0||+0.7||40.0||23 Nov||12.6||+0.4||1.3||9 Jul||892.4||967.1||average||92%|
|Penrith Lakes AWS||25.2||+0.7||44.9||23 Nov||12.8||+0.5||0.1||9 Jul||693.6||714.9||average||97%|
|Prospect Reservoir||24.3||+1.1||39.9||14 Nov||12.7||+0.5||2.5||6 Aug||883.8||871.9||average||101%|
|Richmond RAAF||24.9||+0.8||45.3||23 Nov||11.5||+0.5||-3.3||4 Jul||683.6||721.7||average||95%|
|Springwood (Valley Heights)||22.9||43.5||23 Nov||3.2||7 Aug||840.2||1087.1||low||77%|
|Sydney (Observatory Hill)||23.5||+1.8||36.5||1 Nov||15.2||+1.4||5.5||3 Aug||893.8||1213.8||low||74%|
|Sydney Airport AMO||23.6||+1.4||38.0||14 Nov||15.1||+1.7||4.9||3 Aug||989.8||1083.7||average||91%|
|Terrey Hills AWS||22.0||38.9||21 Nov||13.4||4.0||12 Jul||998.0|
The annual climate summary lists the main features of the weather in 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.
A Climate Summary is generally published on the first working day of each month.
This statement has been prepared based on information available at 9 am on Tuesday 6 January 2015. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
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
(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.
The ACORN-SAT dataset is used for temperature area averages.