Monday, 2 March 2009 - Monthly Climate Summary for Sydney - Greater Sydney - Product code IDCKGC25L0

Sydney has a cloudy, mild and wet February

Summary

 

After a dry January in Sydney, above average rainfall was recorded during February. The cloud and rain kept temperatures close to average during the day and above average at night.

  • Wet month, above average rainfall over most of metropolitan area
  • Mild days, close to average maximum temperatures
  • Mild to warm nights, above average minimum temperatures
  • Cloudy month with below average sunshine

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

Rainfall

Sydney had a wet February with above average rainfall across much of the metropolitan area. Observatory Hill received a total of 127.6 mm, which is slightly above the historical average of 118 mm. The rain fell on 13 rain days, close to the historical average. Nearly the entire month's rainfall occurred on 6 days in the middle of the month associated with a small east coast low pressure system and moist easterly winds. The wettest suburbs were in the north where St Ives recorded 243.6 mm for the month while the driest suburbs were in the far southwest around Camden. Severe thunderstorms on the 21st caused heavy showers in northern suburbs with Avalon Beach recording 77 mm, most falling in about 2 hours.

Generally below average rainfall was recorded over the Warragamba Dam catchment area during February with totals around 30 to 50 mm in the upper catchment and around 130 mm in the lower catchment. Sydney's storage level remained stationary during February at about 60% of capacity. Recent rainfall and current levels in Sydney's water catchments can be found on the Sydney Catchment Authority web site http://www.sca.nsw.gov.au/dams/rainfall.html

Temperatures

Sydney experienced mild days along the coast during February with close to average maximum temperatures. Daytime temperatures were several degrees warmer in western suburbs where the cooling influence of the sea breezes were reduced by their inland location. Sydney Observatory Hill recorded an average maximum temperature of 25.7 °C, which is the same as the historical February average. It was several degrees warmer in the western suburbs but still very close to the historic averages. The mild conditions were partly due to the prevailing S-SE winds and cloudy, wet conditions modifying daytime temperatures.

Although heatwave conditions prevailed in the western suburbs early in February, the remainder of the month was mild and cloudy. Richmond set a new record for February recording 4 very hot days over 40°C, the highest at that site since records commenced in 1940. The previous highest was 3 days over 40°C in February 1991, 1987, 1983 and 1940. The hot conditions early in February were part of a statewide heatwave caused by a very hot flow of northerly air over NSW affecting all districts except the coastal fringe.

Average minimum temperatures over the Sydney area were close to the historic average. The official site at Sydney Observatory Hill recorded an average minimum of 19.7 °C, which is 0.9°C above the historical average. Twelve out of the last 13 years have recorded above average minimum temperatures in February. Average minimum temperatures over the remainder of the Greater Sydney area were also slightly above average during February.

Warm nights prevailed in the western suburbs early in the month during the heatwave that affected much of NSW. At Penrith, there was a total of 8 warm nights during the month with a minimum temperature above 21°C, well above the normal number of 3 nights over 21°C. Similar conditions were experienced along the coast with Observatory Hill recording 10 nights over 21°C compared to the historic February average of 4 nights over 21°C.

The highest minimum temperature in Greater Sydney was 22.9°C at Sydney Observatory Hill on the 2nd. The lowest temperature at Sydney Observatory Hill during February was 16.4°C on the 13th while the lowest in the Sydney metropolitan area was 12.3°C at Campbelltown on the 28th.

Some sites had their coldest February day (lowest maximum temperature) on record.

Wind

Prevailing winds in coastal Sydney during the afternoons were between S and E for 78% of the time during February, which is above the normal frequency from this direction. Strong SE winds on 11th caused wind gusts of 80 km/h at Wattamolla in the Royal National Park, the strongest wind gust in the Sydney region during the month.

Other phenomena

The average daily sunshine in Sydney during February was 6.0 hours per day, well below the historic average of 7.2 hours per day. It was the 6th cloudiest February at the airport site since records commenced in 1978. Although no thunderstorms were reported at the official observing site in the city, 2 storms were reported at the airport site and there were 4 days of storms over the metropolitan area as a whole. The most severe was on 21st February with Avalon Beach in Sydney's north recording 77 mm in about 2 hours. The storm caused flash flooding at Parramatta and Berowra with trees blown over and golf ball size hail reported at Cowan.

Further information

NSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email climate.nsw@bom.gov.au

Extremes for the Sydney area

Hottest day
Highest temperature
42.5°C at Penrith Lakes AWS on the 8th
Warmest days on average
Highest mean daily maximum temperature
29.3°C at Penrith Lakes AWS
Coolest days on average
Lowest mean daily maximum temperature
25.7°C at Sydney (Observatory Hill)
Coldest day
Lowest daily maximum temperature
15.9°C at Springwood on the 14th
Coldest night
Lowest temperature
12.3°C at Campbelltown on the 28th
Coolest nights on average
Lowest mean daily minimum temperature
17.1°C at Springwood
Warmest nights on average
Highest mean daily minimum temperature
19.7°C at Sydney (Observatory Hill)
Warmest night
Highest daily minimum temperature
22.9°C at Sydney (Observatory Hill) on the 2nd
22.8°C at Penrith Lakes AWS on the 6th
Wettest overall
Highest total rainfall
243.6 mm at St Ives
Driest overall
Lowest total rainfall
89.0 mm at Camden Valley Golf Resort
Wettest day
Highest daily rainfall
77.0 mm at Avalon Beach on the 22nd
69.8 mm at Canterbury Racecourse AWS on the 14th
Highest wind gust
67 km/h at Sydney Airport AMO on the 7th
80 km/h at Wattamolla (Royal NP) on the 11th

Records

Record lowest February daily maximum temperature
Lowest daily maximum
temperature
in February 2009 (°C)
Previous lowest
for February
Years of
record
Average for
February
Riverview Observatory 19.0 on the 10th = 19.0 on the 13th in 1996 25 26.4



Summaries for the Sydney area

This table is very wide and may not fit if printed.

Summary statistics for February 2009
Maximum temperatures
for February
(°C)
Minimum temperatures
for February
(°C)
Rainfall
for February
(millimetres)
Mean for
February
2009
Diff
from
average
Highest for
February
2009
Mean for
February
2009
Diff
from
average
Lowest for
February
2009
Total for
February
2009
Average
for
February
Rank of
February
2009
Fraction of
February
average
Sydney (Observatory Hill) 25.7 0.0 33.5 7th 19.7 +0.9 16.4 13th 127.6 117.9 average 108%
Bankstown Airport AWS 27.4 −0.3 40.2 7th 18.6 +0.6 14.7 28th 162.4 108.6 high 150%
Camden Airport AWS 29.1 +0.6 42.4 7th 17.3 +0.6 12.7 28th 92.0 104.3 average 88%
Parramatta North 27.8 0.0 40.8 7th 18.2 +0.6 14.2 27th 152.4 124.4 high 123%
Prospect Reservoir 28.2 +0.3 41.9 7th 17.9 +0.2 14.0 28th 140.6 95.8 high 147%
Penrith Lakes AWS 29.3 −0.2 42.5 8th 18.8 +0.4 15.1 14th 136.2 121.8 average 112%
Richmond RAAF 29.0 0.0 41.9 7th 18.3 +0.7 14.6 28th 156.0 122.2 average 128%
Springwood 26.8   39.7 8th 17.1   12.5 14th 214.2 138.5 high 155%
Terrey Hills AWS Not available missing data              

Daily rainfall for the Sydney area

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.

Hunter (61)12345678910111213141516171819202122232425262728
Webbs Ck-Wisemans Ferry - - - 0.6 0.2 - - - - 2.8 11.6 1.8 4.4 10.8 24.2 13.2 9.8 7.6 0.4 - 0.4 3.8 0.2 31.2 0.8 0.2 - -
Central Tablelands (South) (63)12345678910111213141516171819202122232425262728
Sackville Ferry (Hawkesbury River) - - - - - - - - - 2.8 7.8 0.6 8.6 23.4 33.8 62.8 3.6 10.2 - 4.0 - 12.6 - 52.2 - - - -
Springwood - - - 0.4 - - - - - 4.8 8.6 2.0 4.8 42.4 51.4 48.0 4.0 14.6 - 3.6 0.4 15.6 - 12.0 0.2 1.4 - -
Valley Heights -
- -
- -

5.4 9.0 2.8 5.0 36.0 53.0 44.4 5.0 13.2

0.4 30.0 - 11.2
2.4 - -
Metropolitan (East) (66)12345678910111213141516171819202122232425262728
Abbotsford (Blackwall Point Rd)








3.0 4.5 13.0 9.5 34.0 21.0 18.0 17.0 12.5 5.0



1.0



Ashfield Bowling Club









6.5

34.2 18.0 21.0 7.0 17.4 7.0








Auburn (Rosnay Golf Club) - - - - - - - - - 3.0 3.0 6.0 4.0 32.0 20.0 31.0 4.0 8.0 - - - 11.0 - 1.0 - - - -
Audley (Royal National Park) - - - - - - - - - 1.0 4.0 22.0 4.0 33.0 27.0 27.0 1.0 18.0 - - - 4.0 - 1.0 - - - -
Avalon (Wollstonecraft Ave) - - - - - - - - - 4.0 14.0 - 28.0 47.0 25.0 21.0 5.0 13.0 - - - 71.0 - 2.0 - - - -
Bankstown Airport AWS - - - - - - - - - 2.0 6.0 6.0 17.0 51.0 26.0 39.0 2.0 6.0 0.2 - - 7.0 - 0.2 - - - -
Belrose (Evelyn Place)


1.0




5.6 7.2 0.8 12.4 49.0 39.0 »» 39.8 13.6 0.4
0.6 13.6
1.0
0.4
-
Canterbury Racecourse AWS - - - - - - - - - 2.2 3.8 15.0 6.4 69.8 19.0
6.6 19.6 1.2 - - 3.4 - 0.4 - - - -
Castle Cove (Rosebridge Ave)








3.5 7.0 2.5 10.0 50.5 32.0 25.0 4.0 17.0 1.0
0.5 20.0



1.0
Chatswood Bowling Club - - - - - - - - - 5.0 5.0 3.0 14.0 49.0 28.0 24.0 6.0 16.0 - - - 20.0 - 1.0 - - 1.0 -
Concord Golf Club








3.6

12.6 33.0 19.6 23.8 10.2 6.8 1.0

7.4
1.0



Cronulla South Bowling Club








4.0 3.8 4.0 9.4 37.0 »» 50.0 1.2 31.0

4.4 15.0
1.0



Guildford (Woodville Golf Club) - - - - - - - - - 3.0 4.0 5.0 8.0 34.0 19.0 42.0 5.0 7.0 - - - 9.0 - 1.0 - - - -
Holsworthy Control Range - - - - - 0.8 - - - 0.6 7.0 8.6 1.2 21.6 29.4 19.4 2.2 5.2 0.2 - - - - - 0.2 - - -
Lidcombe (Carnarvon Golf Club) - - - - - - - - - 3.0 4.0 8.0 5.0 34.0 21.0 29.0 3.0 8.0 - - - 4.0 - - - - - -
Macquarie Park (Willandra Village)









»» »» 47.0 »» »» »» »» »» 107 »» »» »» »» 32.0



Manley / Warringah (Allambie) - - - 0.5 - - - - - 3.5 5.0 - 7.5 27.0 34.0 23.0 3.0 12.5 - - - 10.5 - 0.5 - - - -
Manley / Warringah (Belrose) - - - 0.5 0.5
- - - 5.0 6.0 1.0 14.5 47.5
39.0 3.5 13.0 - - - 12.0
1.0
- - -
Marrickville Golf Club - - - - - - - - - 1.0 3.0 12.0 3.0 47.0 18.0 11.0 10.0 7.0 12.0 - - 1.0 - - - - - -
Milperra Bridge (Georges River)




- - - - - 6.0 6.0 16.0 40.0 20.0 31.0 2.0 2.0 1.0 - - 6.0 - - - - - -
Parramatta (Erts) - - - - - - - - - 2.0 2.0 5.0 11.0 35.0 16.0 18.0 8.0 3.0 - - - 9.0 - 2.0 - - - -
Parramatta North - - - - - - - - - 5.0 4.2 6.0 16.4 43.8 25.2 20.6 5.6 6.8 - - 0.4 16.8 - 1.6 - - - -
Peakhurst Golf Club - - - - - - - - - 1.0 5.0 14.0 5.0 40.0 23.0 45.0 1.0 17.0 - - - 1.0 - - - - - -
Randwick








4.0 5.2
3.2 46.4 24.0 17.8 3.0 26.8


4.2

0.6 0.2

Riverview Observatory - - - - - - - - - 4.8 3.6 6.2 18.8 35.8 26.4 14.0 3.2 14.6 0.4 - 0.2 7.8 - 0.8 - 0.2 0.3 -
Rose Bay


1.4




3.2 3.8 0.2 8.4 15.2 21.8 16.4 3.8 25.8 1.2

0.8
0.6

0.2
Sans Souci - - - - - - - - - 1.0 4.0 6.0 6.0 35.0 22.0 43.0 - 19.0 - - 1.0 1.0 - 1.0 - - - -
St Ives (Richmond Avenue)


1.4




5.4 10.2 3.8 17.4 54.0 40.6 48.4 3.6 18.0 0.2
0.4 40.2
1.2
1.4
-
Strathfield Golf Club - - - - - - - - - 3.0 3.0 10.0 5.0 39.0 17.0 28.0 5.0 11.0 - - - 3.0 - - - - - -
Sydney (Observatory Hill) - - - 0.4 - - - - - 3.4 5.6 0.6 23.2 19.6 25.6 16.4 3.8 24.6 1.4 - - 2.2 - 0.8 - - - -
Sydney Airport AMO - - - - - - - - - 1.4 2.4 5.0 2.0 40.8 12.2 17.0 3.8 15.0 0.8 - - 2.4 0.2 - - - - -
Sydney Olympic Park - - - - - - - - - 3.6 3.4 9.8 7.0 37.8 18.2 18.0 11.4 7.6 - - 0.2 8.2 - 0.8 - - - -
Turramurra


1.6




7.0 8.6 5.2 18.8 47.2 34.8 32.0 6.0 11.6 1.8
0.6 15.6
1.6
1.2 0.2 -
West Pymble (Wyuna Road)


1.8




6.4 6.6 5.0 27.6 36.8 28.4 24.8 5.4 11.0 0.2

33.0



0.4
Metropolitan (West) (67)12345678910111213141516171819202122232425262728
Abbotsbury (Fairfield City Farm) - - - - - - - - - 2.0 5.0 6.0 3.0 32.0 30.0 39.0 1.0 12.0 - - - 7.0 - 2.0 - - - -
Badgerys Creek AWS - - - - - - 0.8 - - 2.0 4.6 4.2 1.0 21.2 36.0 23.4 0.8 9.8 - 0.2 1.0 0.2 - 4.2 0.2 - - -
Baulkham Hills (Swimming Pool ) - 0.5 - - - - - - - 3.0 3.5 2.0 15.5 35.5 22.5 17.0 13.0 9.0 - - - 4.5 - 4.0 - - - -
Baulkham Hills Eucalyptus Ct - - - - - - - - - 4.5 4.0 5.5 19.0 43.5 25.5 18.0 6.0 6.5 - - - 3.0 - 3.0 - - - -
Berowra (Goodwyn Road)
1.2






3.6 12.4
24.3 37.9 34.0 56.2 12.8 13.6

2.8 25.6 0.2 5.2



Blacktown - 1.5 - - - - - - - 2.5 5.0 3.0 5.5 41.0 26.5 37.5 9.5 6.0 - - 0.5 3.0 - 3.5 - - - -
Box Hill (Hynds Road) - - - - - - - - - 4.0 5.0 - 10.0 24.0 23.0 20.0 3.0 9.0 - - 1.0 7.0 - 3.0 - - - -
Castle Hill (Kathleen Ave)
1.2
0.2




4.8 4.4 2.0 15.4 38.3 23.1 31.3 11.6 10.3 0.4
0.3 9.0 0.2 3.8



Glenmore Park (Cartwright Cl)








3.4 5.2 4.0 2.6 23.2 29.8 32.6 2.4 »» 10.0 1.4 0.4

13.8
2.0

Glenorie (Old Northern Rd)








4.4 12.4
18.2 25.6 43.0 43.0 5.0



18.0
5.4



Greystanes (Cumberland Golf Club) - - - - - - - - - 3.5 3.5 2.5 6.5 35.5 24.0 32.0 9.5 5.0 - - 0.5 5.0 - 2.0 - - - -
Gunderman (Wisemans Ferry Rd) - - - 0.4 - - - - - 2.4 13.4 4.2 4.2 »» »» 59.2 9.4 8.0 0.4 2.6 - 11.6
Hawkesbury River (Sackville Downstream) - -
-
-



8.4
5.0

55.0
9.8
4.0

-
-
-
Horsley Park Equestrian Centre AWS - 1.0 - - - - - - - 2.4 5.4 9.6 3.2 35.6 34.8 36.8 3.0 12.4 0.2 - 0.2 3.6 0.2 1.6 0.2 0.4 - -
Kelso Ck - - - - - - - - - - - - - 36.5 39.0 43.5 2.0 5.0 1.5 - - - - - 0.5 - - -
Kings Langley (Solander Rd) - 1.4 - - - - - - - 4.4 3.8 5.2 13.6 40.8 23.2 20.8 6.2 6.6 0.2 - 0.4 1.4 - 2.4 - - - -
Liverpool (Michael Wenden Centre) - - - - - - - - - 2.2 6.8 9.4 3.0 30.4 33.2 28.8 3.0 6.8 0.8 - 0.2 1.0 - 1.6 - - - -
Lower Portland (Hawkesbury River) - - - - - - - - - 4.4 9.6 0.6 6.4 25.2 33.6 32.6 5.4 11.4 - 9.4 0.2 6.4 - 43.0 1.0 0.6 - -
Merrylands (Welsford Street)








2.4 4.4
5.4 48.4 25.6 27.8 16.8 4.6


10.4
2.6



Merrylands West (Finlayson Creek) - - - - - - - - - 1.5 5.0 2.5 6.0 42.0 20.5 37.5 6.5 3.0 - - - 5.5 - 3.5 - - - -
North Parramatta (Burnside Homes) - - - - - - - - - 5.5 4.0 5.0 16.0 44.5 24.0 19.0 5.0 6.5 - - - 16.0 - 1.0 - - - -
North Rocks (Muirfield Golf Club) - - - - - - - - - 5.0 3.5 2.5 18.5 45.0 23.5 20.0 8.5 8.0 - - - 8.0 - 2.5 - - - -
Northmead - 1.0 1.0 - - - - 0.5 0.5 4.0 3.5 5.5 14.0 47.5 23.0 23.0 5.5 5.5 0.5 - - 19.0 0.5 2.0 - - - -
Parramatta (Baulkham Hills West) - - 0.5 - - - - - - 3.0 3.5 5.0 13.5 40.0 23.0 19.5 5.0 4.5 - - - 1.5 0.5 2.0 0.5 - - -
Penrith Lakes AWS - - 0.2 - - - - - - 3.2 6.6 1.6 0.8 28.0 32.8 34.6 3.8 10.8 - 0.4 - 10.0 - 3.2 0.2 - - -
Prospect Reservoir - - - - - - - - - 3.2 5.6 3.4 6.6 39.0 24.0 38.7 6.6 6.4 0.4 - 0.8 1.0 - 4.8 - - - -
Richmond RAAF - - - - - - - - - 2.8 4.6 - 7.6 18.2 27.6 39.8 3.4 13.6 - 5.0 0.2 24.6 0.2 8.2 0.2 - - -
Seven Hills (Radio FM 103.2) - 1.0 - - - - - - - 2.0 3.5 2.0 7.0 42.0 22.0 20.5 12.0 6.5 - - - 2.0 - 1.0 - - - -
Seven Hills (Collins St)








5.0 4.0 3.0 11.8 46.0 24.0 24.8 8.6 7.2 0.4

2.9





St Clair (Juba Close)








2.0 5.0 5.0 2.0 29.0 33.0 34.0 2.0 9.0 -

1.0 - 8.0 - - - -
Toongabbie - 0.5 - - - - - - 0.5 3.5 4.0 2.5 9.5 46.0 20.0 24.0 7.5 5.5 - - - 5.0 - 1.0 - 1.5 - -
Toongabbie Ck (Redbank Road - - - - - 3.5 - - - 3.5 3.0 4.5 13.5 41.0 18.5 18.5 7.0 5.5 - - - 15.0 - 2.0 - - - -
West Pennant Hills - - - - - - - - - 5.5 5.0 4.0 14.0 35.5 24.5 27.0 12.5 10.0 - - 0.5 9.5 - 2.0 - - - -
Willmot (Resolution Ave) - - - - - - - - - 2.0 5.0 1.0 5.0 28.0 25.0 28.0 8.0 10.0 - - - 4.0 - 2.0



Illawarra (68)12345678910111213141516171819202122232425262728
Camden Airport AWS - 0.2 - - - - - - - 2.8 0.4 - 0.8 15.8 32.2 18.8 4.8 9.8 - - 1.0 - - 5.4 - - - -
Camden Valley Golf Resort - - - - - - - - - 3.0 1.0 2.0 2.0 15.0 34.0 18.0 6.0 6.0 - - - - - 2.0 - - - -
Campbelltown (Kentlyn) - - - - - - - - - 1.0 1.0 11.0 1.0 15.0 24.0 32.0 5.0 9.0 - - - - - 3.0 - - - -
Rossmore (South Creek) - - - - - - - - - 1.0 4.0 5.0 3.0 21.0 33.0 26.0 2.0 12.0 - - - - - 2.0 - - - -

Notes

This statement has been prepared based on information available at noon on Monday 2 March 2009. 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 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 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

NSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email climate.nsw@bom.gov.au