Summery start to Autumn

  • Below average rainfall for Sydney
  • Above average maximum and minimum temperatures for Sydney
  • Dominant E-NE winds in coastal Sydney in the afternoon.

Rainfall

Sydney Observatory Hill recorded 51.4 mm in March which is below the historical average1 of 163.5 mm. The overall dry conditions were partly due to the passage of several high pressure systems which brought mostly fine weather to Sydney and blocked any potential troughs or frontal systems coming from the south. The rain fell on 9 days which is below the historical average of 13 days. The rainfall distribution over the Sydney area varied slightly with most areas recording between 40 to 60 mm with the exception of Bankstown, Prospect Reservoir and Springwood which all recorded totals of over 80 mm. There was a wet end to March which produced the heaviest falls recorded during the month in the Sydney region with Campbelltown (Kentlyn (Georges River Road)) recording the largest falls of 79.0 mm. This was caused by a low pressure trough which passed over Sydney between the 29th and 30th of the month.

Sydney's storage levels have dropped to 58.3% following an increase in February. 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

Temperature

Sydney Observatory Hill recorded an average mean temperature (average of maximum and minimum temperatures) of 22.5°C which is 0.9°C above the historical average1 of 21.6°C. This has been the warmest March since 2007 (22.7°C). The warm conditions for both maximum and minimum temperatures were partly due to the passage of several high pressure systems which brought mostly fine and warm conditions over Sydney. The high pressure systems also directed a dominant E-NE flow over Sydney which brought warm and humid conditions due to the above average sea surface temperatures off the Sydney coast.

Maximum temperature

Sydney Observatory Hill recorded an average maximum temperature of 25.7°C which is 0.5°C above the historical average1 of 25.2°C. This is the warmest March since 2007 (26.3°C). Warm conditions were experienced across the Sydney area with Penrith recording the warmest average maximum temperature of 28.1°C. The highest daily maximum temperature recorded was 36.3°C at Sydney Airport on the 21st of the month.

Minimum temperature

Sydney Observatory Hill recorded an average minimum temperature of 19.3°C which is 1.3°C above the historical average1 of 18.0°C. This is the warmest March since 2006 (19.6°C). Warm minimum temperatures were recorded across Sydney with Sydney Airport recording the warmest average minimum temperature of 19.4°C. The warmest daily minimum temperature was 23.0°C at Sydney Airport on the 29th of the month.

Wind

Prevailing winds in coastal Sydney during the afternoon (3pm) were E-NE for 66% of the time during March which is well above the normal frequency from this direction.

Other phenomena

The average daily sunshine in Sydney during March was 7.3 hours per day, which is above the historical average1 of 6.5 hours per day. Sydney recorded no thunderstorms during the month (at the Sydney Airport site) compared to the historical average1 of 2 to 3 storms.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in March 2010
Hottest day 36.3 °C at Sydney Airport AMO on the 21st
Warmest days on average 28.1 °C at Penrith Lakes AWS
Coolest days on average 25.0 °C at Terrey Hills AWS
Coldest day 17.7 °C at Terrey Hills AWS on the 1st
Coldest night 8.5 °C at Camden Airport AWS on the 17th
Coolest nights on average 15.1 °C at Camden Airport AWS
Warmest nights on average 19.4 °C at Sydney Airport AMO
Warmest night 23.0 °C at Sydney Airport AMO on the 29th
Wettest overall 116.0 mm at Campbelltown (Kentlyn (Georges River Roa
Wettest day 79.0 mm at Campbelltown (Kentlyn (Georges River Roa on the 31st
Highest wind gust 81 km/h at Sydney Airport AMO on the 21st




Summary statistics for March 2010
Maximum temperatures
for March
(°C)
Minimum temperatures
for March
(°C)
Rainfall
for March
(millimetres)
Mean for
March
2010
Diff
from
average
Highest for
March
2010
Mean for
March
2010
Diff
from
average
Lowest for
March
2010
Total for
March
2010
Average
for
March
Rank of
March
2010
Fraction of
March
average
Badgerys Creek AWS 27.2   35.1 26th 15.4   10.0 17th 56.2
Bankstown Airport AWS 27.2 +1.0 34.4 26th 16.7 +0.6 11.8 17th 99.6 97.6 average 102%
Camden Airport AWS 27.6 +0.9 35.2 21st 15.1 +0.4 8.5 17th 52.0 83.7 average 62%
Campbelltown (Mount Annan) 27.7   35.2 21st 15.2   9.6 17th 54.4
Canterbury Racecourse AWS 26.6   35.1 21st 17.1   11.6 17th 29.0
Holsworthy Control Range 27.5   35.8 21st 15.9   11.9 18th 30.0
Horsley Park Equestrian Centre AWS 27.2   34.9 21st 16.2   11.8 17th 32.4
Liverpool (Michael Wenden Centre) 27.7   35.5 21st 15.7   10.3 17th 67.6
Parramatta North (Masons Drive) 27.1 +0.9 35.2 21st 16.4 +0.6 12.5 12th 71.8 106.7 average 67%
Penrith Lakes AWS 28.1   36.0 21st 17.1   11.9 17th 30.0
Prospect Reservoir 27.6 +1.4 35.2 26th 16.3 +0.2 11.6 17th 81.5 95.7 average 85%
Richmond RAAF 27.4   35.1 21st 16.0   9.0 17th 60.4
Riverview Observatory 26.2 +1.0 34.5 21st 17.0 +0.9 12.2 17th 64.8 125.4 average 52%
Springwood Bowling Club 25.5   33.9 21st 15.9   12.0 17th 82.4 125.3 average 66%
Sydney (Observatory Hill) 25.7 +1.0 30.9 21st 19.3 +1.8 15.6 17th 51.4 128.9 low 40%
Sydney Airport AMO 26.7 +1.5 36.3 21st 19.4 +2.0 15.2 17th 40.0 114.5 low 35%
Sydney Olympic Park (Sydney Olympic Pk A 27.0   35.9 21st 18.5   14.6 17th 31.2
Terrey Hills AWS 25.0   33.0 26th 17.5   14.1 17th 87.8

Daily rainfall

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)12345678910111213141516171819202122232425262728293031
Webbs Ck-Wisemans Ferry (Hawkesbury Rive 4.8 4.8 0.2 - 0.2 22.4 0.2 0.2 - - - - 0.2 1.0 - - - - - - - - - - - - - - - 13.4 21.8
Central Tablelands (South) (63)12345678910111213141516171819202122232425262728293031
Sackville Ferry (Hawkesbury River) 8.0 4.0 - - - 17.4 0.2 - - - - - - 0.2 5.2 0.2 0.2 - 0.2 - - - - - - - - - - 13.6 19.6
Springwood Bowling Club 23.8 9.8 0.2 - 0.4 9.6 - 3.0 - - 1.6 - - 0.8 2.6 - - - - - - - - - - - - - - 6.4 24.2
Valley Heights (Sun Valley Rd) 21.0 8.0 - -
10.0
2.4 -
2.4


3.0
- - -





- -
-
33.4
Metropolitan (East) (66)12345678910111213141516171819202122232425262728293031
Abbotsford (Blackwall Point Rd) 4.0 7.5


18.0
1.2




4.4














2.0 15.0
Auburn (Rosnay Golf Club) 2.0 2.0 1.0 - 1.0 14.0 - 1.0 - - - - - 5.0 - - - - - - - - - - - - - - - 5.0 37.0
Audley (Royal National Park) 5.0 11.0 - - - 15.0 - 1.0 - - - 2.0 1.0 2.0 - - - - - - - - - - - - - - - 4.0 63.0
Avalon Beach (Avalon (Palmgrove Rd)) 6.6 7.8


18.6
0.2

4.8 0.4 »» »» 5.8














36.6
Bankstown Airport AWS 4.4 1.4 -

22.2 0.2 0.8 0.2 - - - - 1.4 - - - - - - -
- - - -
- - 6.0 63.0
Belrose (Evelyn Place) 12.8 8.4

0.8 13.8
0.4
0.4 1.0

2.0














7.2 38.2
Campbelltown (Ingleburn (Long Point)) - 6.0 - - - 20.0 - - - - - - - 2.0 - - - - - - - - - - - - - - - 5.0 -
Canterbury Racecourse AWS 3.0 5.4 - -
13.8 -
0.2 - - - - 3.0 - - - - 0.4 - - - 0.2 - - - - - - 3.0
Castle Cove (Rosebridge Ave) 6.0 8.0

1.0 19.0
0.5




0.5














1.2 35.0
Chatswood Bowling Club 4.0 8.0 - - - 15.0 - - - - - 1.0 - 6.0 - - - - - - - - - - - - - - - 7.0 21.0
Collaroy (Long Reef Golf Club) 9.8 5.2


13.4



2.2
0.2







0.2






18.6 49.8
Concord Golf Club 4.0 7.6


16.8
1.8




3.2
















Cronulla South Bowling Club 7.0 5.4


14.0






















5.0 35.0
Guildford (Woodville Golf Club) 2.0 3.0 - - - 20.0 - 1.0 - - - 1.0 - 3.0 - - - - - - - - - - - - - - - 6.0 39.0
Holsworthy Control Range 2.4 2.6 -
- 16.8 -
0.2 - - - 0.4 2.4 0.2 -
- -

- - - - - - - - 5.0
Lidcombe (Carnarvon Golf Club) 2.0 1.0 - - - 15.0 - 2.0 - - - - - 6.0 - - - - - - - - - - - - - - - 3.0 25.0
Liverpool-Scrivener St (Georges River) 2.0 2.0 - - - 18.0 - 1.0 - - - - - 1.0 - - - - - - - - - - - - - - - 5.0 56.0
Lucas Heights (ANSTO) 12.0 9.8


12.0
0.4


1.0 9.0 2.0














5.6 46.0
Manley / Warringah (Allambie) 8.5 6.0 - - - 11.5 - 0.5 - - 0.5 - - 0.5 0.5 - - - - - - - - - - - - - - 9.0 29.0
Manley / Warringah (Belrose) 12.5 9.5 - - 0.5 12.5

2.0 -
- - 1.5 - - - - - - - -
- - - - -
5.0 35.5
Marrickville Golf Club 2.0 7.0 - - - 14.0 - 1.0 - - - - - 3.0 - - - - - - - - - - - - - - - 3.0 20.0
Mona Vale Golf Club 7.0 7.4 - - - 16.6 - - - 0.4 1.4 0.2 - 0.2 - - - - - - - - - - - - - - - 5.0 50.2
Parramatta (Erts) 3.5 1.5 - - - 16.5 - 1.0 - - - - - 0.5 - - - - - - - - - - - - - - - 6.0 29.5
Parramatta North (Masons Drive) 2.4 8.0 - - 1.2 20.2 - 2.2 - - 0.4 0.2 - 1.4 - - - - - 0.2 - - - - - - - - - 8.2 27.4
Peakhurst Golf Club 3.0 5.0 - - - 18.0 - 2.0 - - - - - 4.0 - - - - - - - - - - - - - - - 4.0 55.0
Randwick Bowling Club
6.6



























12.4
Riverview Observatory 4.0 6.2 - - 0.8 17.4 - 0.6 - - 0.4 - - 12.0 - - 0.2 - - - - - - - - - - - - 6.8 16.4
Rose Bay (Royal Sydney Golf Club) 3.6 3.8


15.8
0.4
0.4 0.6

1.8






0.4






3.0 11.0
Sans Souci (Public School) 4.0 6.0 - - - 12.0 - 1.0 - - - - - 11.0 - - - - - - - - - - - - - - - 4.0 28.0
St Ives (Richmond Avenue) 8.2 11.2



0.8

1.0 3.4

6.0 0.2













»» 35.6
Strathfield Golf Club 2.0 3.0 - - - 14.0 - 2.0 1.0 - - - - 3.0 - - - - - - - - - - - - - - - 4.0 33.0
Sydney (Observatory Hill) 4.2 9.0 0.2 - - 14.0 - - - 0.2 - 0.2 - 5.6 - - - - - - - - - - - - - - - 4.0 14.0
Sydney Airport AMO 3.0 4.4 0.2 - - 13.6 0.2 0.6 - 0.8 - - - 4.0 - - - - - - - - - - - - - - - 1.8 11.4
Sydney Olympic Park (Sydney Olympic Pk A 3.0 6.0 - - - 18.6 - 3.0 - -
- - 0.2 - - - - - - 0.2 - - - - - - - - 0.2 -
Terrey Hills AWS 6.4 8.6 - - - 13.2 0.2 - - 0.4 3.2 1.4 1.2 4.6 - - - - - - - - - - - - - - - 3.8 44.8
Turramurra (Kissing Point Road) 11.6 10.6

0.2

0.9
1.0 1.0 0.2 0.4 1.0














10.0 25.0
Metropolitan (West) (67)12345678910111213141516171819202122232425262728293031
Badgerys Creek AWS 12.8 1.8 - - - 11.2 - -

- - - 1.6 - - - - -
- - - - - - - - 0.8 7.0 21.0
Baulkham Hills (Swimming Pool ) 5.5 5.0 - 0.5 0.5 17.0 0.5 1.5 0.5 - 0.5 - - 1.5 - - - - - - - - - - - - - - - 8.5 38.0
Baulkham Hills Eucalyptus Ct 2.5 5.5 - 0.5 - 18.5 - 2.0 - - 0.5 - - 0.5 - - - - - - - - - - - - - - - 7.0 53.0
Berowra (Goodwyn Road) 11.2 5.8

























11.8
31.8
Blacktown (Dog Pound) 4.0 2.5 - - 0.5 17.5 0.5 - 0.5 - - - - 1.0 - - - - - - - - - - - - - - - 8.0 40.0
Box Hill (Hynds Road) 6.0 1.0 1.0 - - 17.0 - - - - - - - - - - - - - - - - - - - - - - - 8.0 24.0
Castle Hill (Kathleen Ave) 4.8 4.0
1.0 »» »» »» 20.4

1.0 0.5
1.9














13.4 48.6
Glenorie (Old Northern Rd) 13.6 5.4
1.0
26.0
2.4


2.2
3.0














15.0 21.2
Greystanes (Cumberland Golf Club) 2.5 3.0 - - - 24.0 - 1.0 - - - - - 3.0 - - - - - - - - - - - - - - - 6.5 77.0
Hawkesbury River (Sackville Downstream) 8.0 4.0 2.5 - - 16.0 - - - - - - - - 5.0 0.5 - - - - - - - - - - - - - 5.5 17.5
Horsley Park Equestrian Centre AWS 2.2 4.2 - - 0.4 16.0 0.2 0.2 - - - - - 2.2 0.2 - - 0.2 - - - - - - - - - - - 6.6
Kelso Ck (Kelso Creek U/S Levee (Georges 5.0 2.5 - - - 17.5 - 0.5 - - - - - 6.5 - - - - - - - - - - - - - - - 5.5 73.0
Kings Langley (NSW Soccer Federation) 3.5 3.0 - - - 18.0 0.5 0.5 0.5 - - - - 0.5 - - - - - - - - - - - - - - - 7.0 57.0
Kings Langley (Solander Rd) 4.0 2.8 - - 0.8 18.4 - 1.4 - - 0.4 - - 0.4 - - - - - - - - - - - - - - - 8.2 64.6
Liverpool (Michael Wenden Centre) 2.2 1.6 - - 0.2 16.4 - 1.0 - - - - - 0.8 - - - - - - - - - - - - - - - »» 45.4
Lower Portland (Hawkesbury River) 14.6 7.6 - - - 15.4 0.2 0.6 0.2 0.2 - - - 2.6 1.2 0.2 - - - - - - - - - - - - - 8.4 21.2
Maroota (Tobruk) 14.8 6.8 - 0.2 - 24.6 - 0.4 - - 2.0 - 1.0 0.2 - - - - 0.2 - - - - - - - - - - 24.0 18.4
Merrylands (Welsford Street)




23.8






















4.8
Merrylands West (Finlayson Creek) 4.5 1.5 - - - 31.0 - 2.0 - - - - - 5.0 - - - - - - - - - - - - - - - 9.5 71.0
North Parramatta (Burnside Homes) 2.0 7.0 - - 0.5 18.5 - 1.5 0.5 - - 0.5 - 1.0 - - - - - - - - - - - - - - - 6.5 25.5
North Rocks (Muirfield Golf Club) 3.5 9.0 - - 2.0 19.5 - 2.0 - - - - - 1.5 - - - - - - - - - - - - - - - 8.5 26.5
Northmead Bowling Club 1.5 6.5 - - 1.0 17.0 - 1.0 - - - - - 0.5 - - - - - - - - - - - - - - 0.5 5.5 39.5
Parramatta (Baulkham Hills West (Sierra 3.5 3.0 - 0.5 - 17.0 - 1.5 - - - - - - - - - - - - - - - - - - - - - 7.5 72.0
Penrith Lakes AWS 9.8 2.8 - - 0.2 10.6 - - - - - -
1.4 0.2 - - - - - - - - - - - - - - 5.0
Prospect Reservoir 2.2 3.3 - - 0.2 19.6 - 0.8 - - 0.9 - - 1.4 - - - - - - - - - - - - - - - 7.7 45.4
Richmond RAAF 9.8 5.6 0.2 - 0.2 11.8 - - - - 0.4 -
1.2 - - - - - - - - - - - - - - - 10.2 21.0
Seven Hills (Radio FM 103.2) 3.5 1.5 - 0.5 - 20.0 0.5 1.0 - - - - - 0.5 - - - - - - - - - - - - - - - 8.5 35.5
Seven Hills (Collins St) 4.4 1.2


21.0
1.6




















9.8 42.4
Toongabbie Bowling Club 3.0 2.5 - - 0.5 20.0 - 1.0 - - - - - 0.5 0.5 - - - - - - - - - - - - - - 9.5 63.5
Toongabbie Ck (Redbank Road (Toongabbee 2.0 5.0 - - 0.5 19.0 0.5 0.5 - - - 0.5 - - - - - - - - - - - - - - - - - 7.5 41.5
West Pennant Hills (Cumberland S F Alert 4.5 8.0 - - 1.0 20.0 0.5 1.0 0.5 - 1.5 - - 1.5 - - - - - - - - - - - - - - - 8.0 22.0
Windsor SWC (Hawkesbury River) 3.0 7.0 - - - 13.0 - - - - - - - 1.0 - - - - - - - - - - - - - - - 10.0 17.0
Illawarra (68)12345678910111213141516171819202122232425262728293031
Camden Airport AWS 9.2 2.0 - - - 8.4 - 0.8 - - - - - 0.4 - - - - - - - - - - - - - - - 12.4 18.8
Camden Valley Golf Resort 4.0 2.0 - - - 12.0 - 1.0 - - - - - 1.0 - - - - - - - - - - - - - - - 4.0 19.0
Campbelltown (Kentlyn (Georges River Roa 2.0 5.0 - - - 18.0 - - - - - - 1.0 3.0 - - - - - - - - - - - - - - - 8.0 79.0
Campbelltown (Mount Annan) 5.0 4.2 - - - 8.8 4.2

- - - - 2.0 - - - - - - - - - - - - - - - 6.8 23.4
Rossmore (South Creek) 7.0 1.0 - - - 14.0 - - - - - - - 1.0 - - - - - - - - - - - - - - - 7.0 44.0

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 9 am on Thursday 1 April 2010. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

A note about deciles: Deciles are used to give an element (in this case rainfall or temperature) a ranking. Deciles are calculated by arranging the totals in ascending order (from lowest to highest) then splitting them into 10 equal groups (thus the groups are called deciles). The first group would be in decile range one, the second group in decile range two, etc up to the highest annual totals (highest 10 per cent) being in decile range 10.

1Averages: Averages are based on the period 1961 to 1990 which is a convention of the World Meteorological Organisation

Normals are long-term averages 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 for temperature and less than 30 years of record for rainfall, as they cannot then be calculated reliably.

Further information

Media
(03) 9669 4057
Enquiries