Sydney in spring 2016: Dry and persistently warm

Spring was warmer than average across the Sydney metropolitan region. Western Sydney recorded some cool days in September with a warm finish to the season in November. Rainfall was below average across the city, particularly later in the season, with above average sunshine.

A dry spring

  • Rainfall was below average across the city during spring, with above-average September rain followed by a dry October and November
  • Observatory Hill recorded rain on 29 days (average 34 days), but no days had more than 25 mm of rain for the first time since 2012 (the average is 2 days)
  • Sunshine was below average during September but well above average in October and November, making spring the sunniest for Sydney Airport since 2013

Warm temperatures across the city

  • Both daytime and overnight temperatures were above average across the city
  • Cool September days for much of western Sydney were balanced by a very warm November, with persistent warmth in the east
  • Eighth-warmest spring for average temperatures at Observatory Hill, but cooler than recent record-breaking springs in 2013, 2014 and 2015
  • Only six days had maximum temperatures below 20 °C at Observatory Hill, the fewest cool days on record (the average is 31 days)
  • Seven days reached 30 °C, above the average of four days but the fewest since spring 2012
  • Six nights had minimum temperatures of 20 °C or higher, the equal-highest number on record with 2009 (the average is 1 night)

Further information

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Extremes in spring 2016
Hottest day 37.4 °C at Campbelltown (Mount Annan) on 18 Nov
37.4 °C at Penrith Lakes AWS on 22 Nov
Warmest days on average 25.7 °C at Penrith Lakes AWS
Coolest days on average 22.6 °C at Terrey Hills AWS
Coldest day 14.3 °C at Springwood (Valley Heights) on 2 Sep
Coldest night 2.8 °C at Camden Airport AWS on 28 Sep
Coolest nights on average 10.2 °C at Camden Airport AWS
10.2 °C at Campbelltown (Mount Annan)
Warmest nights on average 14.9 °C at Sydney (Observatory Hill)
Warmest night 21.8 °C at Sydney Airport AMO on 5 Nov
Warmest on average overall 19.4 °C at Sydney (Observatory Hill)
Coolest on average overall 17.4 °C at Campbelltown (Mount Annan)
Wettest overall 176.4 mm at Mona Vale Golf Club
Driest overall 65.0 mm at Milperra Bridge (Georges River)
Wettest day 36.6 mm at Rose Bay (Royal Sydney Golf Club) on 3 Sep
Strongest wind gust 81 km/h at Kurnell AWS on 3 Sep
81 km/h at Sydney Airport AMO on 4 Oct
81 km/h at Sydney Airport AMO on 13 Nov

Lowest spring total rainfall for at least 20 years

Observed
(mm)
Most recent
lower
Average for
spring
Belrose (Evelyn Place) 128.2 87.8 in 1991* 249.4

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported


Summary statistics for spring 2016

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
spring
2016
Diff
from
average
Highest for
spring
2016
Mean for
spring
2016
Diff
from
average
Lowest for
spring
2016
Total for
spring
2016
Average
for
spring
Rank of
spring
2016
Fraction of
spring
average
Badgerys Creek AWS 25.1 +0.5 36.8 22 Nov 10.4 -0.1 2.9 27 Sep 78.8 156.9 v low 50%
Bankstown Airport AWS 24.9 +1.3 36.9 18 Nov 12.1 +0.5 5.7 2 Oct 82.2 180.3 v low 46%
Camden Airport AWS 25.0 +0.8 37.2 22 Nov 10.2 +0.3 2.8 28 Sep 85.8 176.5 low 49%
Campbelltown (Mount Annan) 24.7   37.4 18 Nov 10.2   3.3 27 Sep 94.0


Canterbury Racecourse AWS 23.7 +0.3 34.9 18 Nov 12.1 0.0 5.4 4 Sep 107.4 190.9 low 56%
Holsworthy Aerodrome AWS 24.3   37.1 22 Nov 10.7   3.6 20 Sep 93.4


Horsley Park Equestrian Centre AWS 24.7 +0.2 36.6 22 Nov 12.0 +0.2 4.6 5 Sep 81.6 161.1 v low 51%
Parramatta North (Masons Drive) 24.5 +0.8 36.5 22 Nov 12.5 +0.7 5.4 20 Sep 104.2 204.7 low 51%
Penrith Lakes AWS 25.7 +0.2 37.4 22 Nov 12.4 +0.2 5.5 5 Sep 79.0 166.1 v low 48%
Prospect Reservoir 24.8 +1.2 36.4 18 Nov 12.3 +0.4 5.3 5 Sep 102.6 178.8 low 57%
Richmond RAAF 25.6 +0.6 36.7 22 Nov 11.3 +0.2 3.4 28 Sep 109.6 173.0 average 63%
Springwood (Valley Heights) 23.6 0.0 35.1 22 Nov 11.9 +0.2 5.5 20 Sep 104.2 225.0 low 46%
Sydney (Observatory Hill) 23.8 +1.9 33.6 10 Oct 14.9 +1.4 9.0 14 Oct 128.6 228.5 low 56%
Sydney Airport AMO 24.0 +1.6 35.1 18 Nov 14.7 +1.6 8.4 14 Oct 129.2 211.5 low 61%
Terrey Hills AWS 22.6 +0.1 33.5 12 Nov 12.9 -0.4 6.5 12 Oct 111.6 235.7 v low 47%

Notes

The Seasonal climate summary, generally published on the first working day of each month, 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 9 am on Thursday 1 December 2016. 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 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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries