Sydney in December 2016: Warmest December since 1990

December was the warmest for Sydney since 1990, with both daytime and overnight temperatures well above average and significant heatwaves over the 13th to 14th and at the end of the month. Rainfall was close to average, with most rain falling over the 16th and 17th.

Close to average rainfall

  • Rain was close to average across Sydney during December
  • Most of the rain fell over 16-17 December, with daily totals of up to 37 mm at Frenches Forest
  • There were 10 rain days at Observatory Hill, close to the December average of 11 days
  • Thunder was heard at Sydney Airport on four days, normal for December, with storms on the 5th causing lightning strikes across the city and heavy rain in Mona Vale
  • Sydney Airport recorded an average of 7.4 hours of sunshine, below the December average of 7.9 hours

Heatwaves bring a warm end to the year

  • Both daytime and overnight temperatures were well above average across the city, with most stations recording their warmest December since 1990 and the second-warmest December on record at Observatory Hill
  • The mean maximum temperature at Observatory Hill was 2.9 °C above average, the third-warmest December on record and warmest since 2005
  • The mean minimum temperature was 2.5 °C above average, the second-warmest December on record behind 1990
  • There were seven days above 30 °C at Observatory Hill (average three days), while 15 days reached at least 30 °C in Parramatta
  • Four days reached 35 °C (average 1 day), the most hot days since 1979
  • There were 16 nights of at least 20 °C, the second-highest number on record, with three consecutive nights above 22 °C at the end of the month, the first time on record for December
  • Temperatures were particularly warm between the 13th and 14th, with several stations recording their warmest December night on record and two consecutive days above 37 °C at Observatory Hill, only the second time on record for December
  • The month ended with six consecutive days above 28 °C at Observatory Hill, the second time on record for December with 20-25 December 1972

Further information

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Extremes in December 2016
Hottest day 40.6 °C at Penrith Lakes AWS on the 29th
Warmest days on average 32.1 °C at Penrith Lakes AWS
Coolest days on average 27.4 °C at Terrey Hills AWS
Coldest day 17.5 °C at Springwood (Valley Heights) on the 15th
Coldest night 9.9 °C at Springwood (Valley Heights) on the 21st
Coolest nights on average 16.9 °C at Campbelltown (Mount Annan)
Warmest nights on average 20.0 °C at Sydney (Observatory Hill)
Warmest night 27.5 °C at Parramatta North (Masons Drive) on the 14th
27.5 °C at Springwood (Valley Heights) on the 14th
27.5 °C at Sydney Airport AMO on the 14th
Warmest on average overall 25.5 °C at Penrith Lakes AWS
Coolest on average overall 22.8 °C at Terrey Hills AWS
Wettest overall 111.4 mm at Mona Vale Golf Club
Driest overall 50.0 mm at Milperra Bridge (Georges River)
Wettest day 50.8 mm at Mona Vale Golf Club on the 6th
Strongest wind gust 81 km/h at Camden Airport AWS on the 20th

Record highest December daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
December
Sydney (Observatory Hill) 27.1 on the 14th 26.3 on the 25th in 1868 158 17.5
Sydney Airport AMO 27.5 on the 14th 25.3 on the 8th in 1990 78 17.5
Parramatta North (Masons Drive) 27.5 on the 14th 27.3 on the 8th in 1990 50 16.2
Penrith Lakes AWS 24.7 on the 31st = 24.7 on the 23rd in 2000 22 16.9
Horsley Park Equestrian Centre AWS 24.5 on the 14th 23.7 on the 10th in 2013 20 16.1

Record highest December mean daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
December
Parramatta North (Masons Drive) 18.2 17.7 in 1975 49 16.2
Camden Airport AWS 17.0 16.6 in 1988 40 15.2
Richmond RAAF 18.1 17.3 in 2014 23 16.0
Canterbury Racecourse AWS 18.4 18.3 in 1997 21 16.7
Penrith Lakes AWS 18.8 18.0 in 2014 21 16.9

Highest December mean daily minimum temperature for at least 20 years

Observed
(°C)
Most recent
higher
Average for
December
Bankstown Airport AWS 18.5 18.9 in 1990 16.7
Prospect Reservoir 17.9 20.5 in 1990 16.3
Sydney (Observatory Hill) 20.0 20.1 in 1990 17.5
Sydney Airport AMO 19.8 19.9 in 1990 17.5

Record highest December mean temperature

New record
(°C)
Old
record
Years of
record
Average for
December
Richmond RAAF 25.0 24.2 in 2005 23 22.3
Canterbury Racecourse AWS 23.6 23.4 in 2005 21 21.5
Penrith Lakes AWS 25.5 24.9 in 2005 21 23.1

Highest December mean temperature for at least 20 years

Observed
(°C)
Most recent
higher
Average for
December
Bankstown Airport AWS 24.4 24.6 in 1990 22.0
Prospect Reservoir 24.2 25.8 in 1990 21.9
Sydney (Observatory Hill) 24.1 24.4 in 1990 21.4
Sydney Airport AMO 24.3 24.6 in 1990 21.7
Camden Airport AWS 24.0 24.4 in 1990* 21.8

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


Summary statistics for December 2016

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
December
2016
Diff
from
average
Highest for
December
2016
Mean for
December
2016
Diff
from
average
Lowest for
December
2016
Total for
December
2016
Average
for
December
Rank of
December
2016
Fraction of
December
average
Bankstown Airport AWS 30.3 +3.0 39.9 29th 18.5 +1.8 13.1 10th 53.8 68.0 average 79%
Camden Airport AWS 30.9 +2.5 39.7 29th 17.0 +1.8 11.3 10th 63.2 57.1 average 111%
Campbelltown (Mount Annan) 30.5 +2.8 38.7 13th 16.9 +1.9 11.5 10th 53.8 57.1 average 94%
Canterbury Racecourse AWS 28.7 +2.4 38.5 29th 18.4 +1.7 13.5 10th 68.0 64.8 average 105%
Holsworthy Aerodrome AWS 29.5   39.7 29th 17.2   11.3 10th 57.4


Horsley Park Equestrian Centre AWS 30.8 +2.8 39.5 29th 17.6 +1.5 13.2 10th 61.4 64.6 average 95%
Parramatta North (Masons Drive) 29.9 +2.5 39.0 13th 18.2 +2.0 12.8 10th 77.2 73.6 average 105%
Penrith Lakes AWS 32.1 +2.9 40.6 29th 18.8 +1.9 13.9 20th 65.2 62.5 average 104%
Prospect Reservoir 30.1 +2.6 38.9 29th 17.9 +1.6 13.1 20th 104.2 76.1 high 137%
Richmond RAAF 31.9 +3.3 39.6 13th 18.1 +2.1 13.0 20th 78.4 69.7 average 112%
Springwood (Valley Heights) 29.8 +3.5 38.5 29th 17.1 +1.9 9.9 21st 81.7 101.9 average 80%
Sydney (Observatory Hill) 28.1 +2.9 37.8 13th 20.0 +2.5 16.7 20th 65.0 77.6 average 84%
Sydney Airport AMO 28.8 +3.0 39.2 13th 19.8 +2.3 16.2 10th 62.4 73.9 average 84%
Terrey Hills AWS 27.4 +2.2 37.4 13th 18.1 +1.7 13.5 10th 65.2 81.3 average 80%

Daily maximum temperatures for December 2016

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Badgerys Creek AWS















34.2 22.6
37.8 31.3 26.6 28.6 29.9 31.9 34.5 32.4 35.8 40.5 34.7 34.2
Bankstown Airport AWS 34.4 38.0 27.7 30.3 33.7 25.0 26.0 33.0 27.6 25.1 28.2 31.2 39.4 37.4 18.8 26.4 34.7 21.9 24.0 35.7 26.9 24.7 26.7 30.5 29.6 33.4 29.5 32.5 39.9 36.1 30.1
Camden Airport AWS 33.9 36.3 29.7 32.2 34.8 26.0 27.2 35.3 26.7 26.7 29.9 32.5 38.5 34.6 17.6 25.6 33.5 22.4 25.4 36.6 29.9 24.9 28.2 30.1 31.2 34.6 32.0 35.6 39.7 32.5 33.7
Campbelltown (Mount Annan) 33.6 35.8 29.2 31.0 34.2 25.8 26.8 33.7 26.8 25.8 29.0 32.4 38.7 35.1 18.1 25.2 33.3 21.2 24.5 36.1 29.5 24.4 27.5 30.1 30.7 34.5 31.2 34.6 38.6 34.7 32.4
Canterbury Racecourse AWS 31.8 36.4 25.6 28.1 33.4 24.7 25.4 29.4 26.8 24.6 27.3 28.3 38.5 36.9 18.6 25.5 33.8 21.2 23.4 30.1 24.7 24.6 25.5 29.1 28.0 30.2 27.0 30.3 38.5 34.6 27.4
Holsworthy Aerodrome AWS 33.5 37.3 26.2 29.8 32.9 24.4 25.0 30.8 27.2 24.3 27.2 29.5 39.2 35.0 17.9 24.9 33.7 21.1 23.7 35.3 27.1 24.5 26.1 29.4 29.2 33.8 29.4 32.3 39.7 35.0 29.9
Horsley Park Equestrian Centre AWS 33.9 36.6 28.5 30.9 34.3 25.9 26.8 36.9 27.2 27.0 29.6 32.1 39.5 37.9 17.6 25.4 33.3 23.2 25.0 36.7 28.6 25.0 27.5 29.4 30.1 34.4 30.6 34.3 39.5 34.9 31.9
Parramatta North (Masons Drive) 33.0 37.0 26.7 30.2 34.5 25.0 25.2 34.3 28.0 24.8 28.0 30.3 39.0
18.8 26.2 34.2 22.0 24.5 36.8 27.0 24.5 25.9 30.4 29.3 33.6 29.0 34.0 38.8 35.2 29.3
Penrith Lakes AWS 34.0 37.2 30.6 34.1 36.7 26.0 28.3 38.0 28.2 29.6 31.6 34.7 39.5 36.9 18.0 25.8 34.6 23.3 26.5 37.1 32.3 26.4 28.9 30.2 32.1 34.9 32.8 37.5 40.6 35.1 35.0
Prospect Reservoir 33.9 35.8 27.3 30.5 35.6 25.4 25.4 36.2 27.0 25.5 28.5 32.5
36.3 17.9 26.5 33.2 22.2 24.7 36.2 27.8 25.0 26.9 30.7 29.9 34.7 30.0 34.0 38.9 34.5 30.3
Richmond RAAF 34.6 37.1 30.6 33.3 35.8 25.4 28.1 37.6 28.0 28.5 30.7 34.9 39.6 38.2 18.5 26.1 34.2 23.6 25.8 36.9 31.5 25.8 28.2 31.7 30.9 35.2 32.3 36.6 39.5 35.7 34.9
Springwood (Valley Heights) 33.7 35.7 27.3 31.0 36.0 23.3 26.0 35.5 26.0 26.2 28.0 31.0 37.2 33.7 17.5 25.2 31.6 20.8 24.5 35.0 30.0 23.7 26.0 27.8 29.0 32.3 30.2 34.8 38.5 32.0 33.5
Sydney (Observatory Hill) 28.5 35.7 26.8 26.9 29.9 23.6 25.1 27.9 27.8 23.7 26.3 27.6 37.8 37.2 19.1 25.4 33.7 21.3 22.9 27.1 26.7 24.3 24.4 27.2 27.4 29.3 29.6 28.9 36.6 33.3 30.0
Sydney Airport AMO 30.9 35.7 25.9 28.1 32.4 24.8 24.9 29.6 26.8 24.0 27.1 29.0 39.2 37.5 18.9 26.0 34.5 21.9 24.9 29.6 25.4 25.0 26.4 28.1 29.4 30.9 26.8 30.5 38.2 35.6 26.3
Terrey Hills AWS 28.8 34.1 23.8 27.3 33.9 22.0 23.2 27.4 26.0 22.6 25.0 27.7 37.4 36.9 17.6 25.0 32.3 19.2 21.6 28.3 24.6 23.1 23.8 26.9 26.3 29.1 28.1 28.9 36.3 34.1 29.2
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated,
and typically occurred in the afternoon of that day.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period


Daily minimum temperatures for December 2016

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Badgerys Creek AWS
















17.2 14.8 11.9 15.1 17.4 18.5 15.4 14.8 17.1 18.3 18.0 21.5 22.6 23.1
Bankstown Airport AWS 16.5 15.2 20.8 16.9 21.7 20.3 17.4 19.2 17.8 13.1 18.4 17.8 19.2 22.6 16.9 16.4 17.9 18.2 15.4 13.7 17.0 19.5 20.1 16.9 17.1 18.4 19.9 19.6 22.2 23.0 24.6
Camden Airport AWS 14.3 13.3 20.0 16.1 21.1 20.7 15.7 18.3 16.5 11.3 17.8 17.5 16.9 17.7 16.0 14.5 16.9 17.0 13.9 11.7 15.4 17.2 18.4 15.6 14.6 16.9 18.3 18.0 21.1 21.9 22.7
Campbelltown (Mount Annan) 14.9 14.4 19.5 15.4 20.6 19.8 15.7 16.9 16.5 11.5 16.8 16.0 16.1 19.0 16.1 15.5 17.2 16.7 13.1 11.6 13.9 18.2 18.9 15.8 15.6 17.0 18.7 17.6 20.8 22.7 22.7
Canterbury Racecourse AWS 15.9 14.8 20.7 16.1 21.4 20.0 18.0 19.6 17.3 13.5 19.1 18.0 19.3 23.0 16.8 16.4 18.0 17.4 17.0 13.7 17.9 19.5 20.1 17.0 17.3 17.9 20.0 18.6 21.4 22.6 23.3
Holsworthy Aerodrome AWS 14.6 13.4 19.5 15.9 20.2 18.8 16.5 17.9 16.9 11.3 16.9 16.8 16.6 21.3 15.9 15.4 17.2 16.9 13.6 12.6 14.9 18.5 18.6 16.4 15.4 18.0 18.5 18.8 20.7 22.7 23.2
Horsley Park Equestrian Centre AWS 15.7 15.3 19.5 16.3 20.9 19.5 16.1 17.7 15.1 13.2 16.0 16.6 18.0 24.5 16.2 15.7 17.4 17.3 14.4 13.2 15.5 17.4 18.0 16.4 16.1 17.7 19.3 18.1 21.3 23.3 23.6
Parramatta North (Masons Drive) 15.5 16.2 20.6 16.7 21.0 20.0 16.0 17.7 16.2 12.8 15.9 16.5 18.5 27.5 16.5 16.8 17.7 18.0 15.6 13.7 18.0 19.2 18.5 16.9 17.0 17.9 20.2 18.2 22.0 22.5 24.2
Penrith Lakes AWS 16.1 16.7 20.9 18.3 21.7 21.2 17.0 18.4 17.2 15.4 19.1 20.0 19.0 21.8 16.9 16.0 17.4 18.2 15.0 13.9 19.3 17.7 19.2 17.9 16.9 18.8 20.7 20.0 23.5 24.7 24.7
Prospect Reservoir 15.8 15.5 20.5 16.5 21.0 19.2 16.5 17.5 17.8 13.5 16.1 17.0



16.5 17.9 15.3 13.1 16.5 19.0 19.8 17.0 16.7 17.8 19.9 18.3 22.0 22.8 24.1
Richmond RAAF 14.7 13.9 21.2 16.0 21.6 20.7 17.5 17.1 16.8 15.3 16.2 16.7 17.6 23.6 17.1 16.2 17.4 18.4 15.6 13.0 18.7 18.5 19.0 16.9 16.4 17.9 20.5 18.8 21.6 23.1 24.3
Springwood (Valley Heights) 14.6 17.9 18.6 15.9 20.5 19.2 15.0 16.8 14.1 13.1 16.9 17.7 18.1 27.5 15.2 14.0 15.6 15.0 12.9 12.5 9.9 15.8 16.7 15.9 15.2 16.9 20.1 17.8 22.7 23.5 24.0
Sydney (Observatory Hill) 18.1 18.7 21.0 19.7 22.1 20.4 18.6 20.2 18.1 16.9 20.0 20.9 20.7 27.1 17.4 17.2 18.5 18.3 17.7 16.7 18.6 20.3 20.8 19.8 19.1 20.9 21.8 21.1 22.6 23.9 24.1
Sydney Airport AMO 18.7 19.3 20.3 19.2 21.8 20.0 18.9 20.6 18.4 16.2 19.6 20.4 21.1 27.5 16.5 16.5 17.7 17.1 16.8 17.5 18.2 19.6 20.8 19.2 18.5 21.3 21.3 21.2 22.4 23.2 22.6
Terrey Hills AWS 16.3 17.3 19.2 17.2 20.1 18.4 17.3 18.1 16.0 13.5 18.2 18.1 18.3 26.4 16.0 15.2 17.0 15.8 14.7 15.0 17.4 17.1 18.4 17.4 17.6 19.0 20.1 18.6 21.9 21.4 23.5
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated,
and typically occurred that morning.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period


Daily rainfall for December 2016

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Abbotsbury (Fairfield (City Farm)) 3.0 - - - 1.0 2.0 6.0 - - - - - - - 6.0 19.0 18.0 3.0 - - - 1.0 - - 7.0 - - - - - -
Abbotsford (Blackwall Point Rd) - - - - 9.0 4.0 - - - - - - - 5.0 26.0 16.0 - 1.0 - - - - - - - - 7.0


Audley (Royal National Park) - - - - 1.0 6.0 9.0 - - - - - - - 8.0 25.0 10.0 - - - 5.0 - - - - - 2.0 - - - -
Badgerys Creek AWS
















- - - - 0.4 - - 4.0 - 5.6 - - - 0.2
Bankstown Airport AWS - 0.2 - - 1.0 7.4 3.8 - - - - - - - 1.8 17.4 14.2 - - - - 0.2 - - 7.0 - 0.8 - - - -
Baulkham Hills Eucalyptus Ct 1.0 - - - 1.0 3.5 6.5 - - - - - - - 6.5 28.0 17.0 0.5 - - 3.0 - - - 12.5 - - - - - -
Belrose (Evelyn Place) 0.6 - - - 0.6 0.4 7.8 - 11.8 - - - - - 7.4 31.0 6.0 0.4 1.8 - 3.0 0.4 - - 4.0 - - - - - -
Berowra (Goodwyn Road) 0.8 - - - 0.3 14.4 8.2 - - - - - - - - - 38.2 - 1.6 - - - - - 19.6





Box Hill (McCall Gardens) - - - - 2.0 - 5.0 - 1.0 - - - - - 5.0 18.0 21.0 - - - - - - - 7.0 - - - - - -
Camden Airport AWS - - - - 0.8 5.6 14.2 - - - - - - - 7.0 19.6 7.4 - 0.2 - 0.2 1.2 - - 1.6 - 4.8 - - - 0.6
Campbelltown (Kentlyn (Georges River Roa - 2.0 - - - 6.0 11.0 - - - - - - - 4.0 20.0 12.0 - - - 1.0 - - - 12.0 - 4.0 - - - 1.0
Campbelltown (Mount Annan) - 0.8 - - 0.6 3.0 9.6 0.2 - - - - - - 6.4 17.8 7.6 - - - - - - - 3.0 0.2 3.8 - - - 0.8
Canterbury Racecourse AWS - - - - 1.2 4.8 5.6 -
- - - - - 5.2 29.0 15.4 - - - - - - - 6.8 - - - - - -
Castle Cove (Rosebridge Ave) 1.0 - - - 0.5 1.0 8.5 - 5.0 - - - - - 7.0 33.0 10.0 - 1.2 - 8.5 - - - 4.5 - - - - - -
Castle Hill (Kathleen Ave) - - - - 2.0 - 13.5 - - - - - - - 4.8 34.2 8.5 - 1.5 - 0.2 - - - 11.2





Chatswood Bowling Club 1.0 - - - 1.0 1.0 6.0 - 2.0 - - - - - 7.0 28.0 10.0 - 1.0 - 5.0 - - - 11.0 - - - - - -
Collaroy (Long Reef Golf Club) - - - - - 0.6 8.8 - 9.0 2.2 - - - - 6.2 26.0 5.2 - - - 5.4









Concord (Brays Rd) 0.4 - - - 1.4 9.0 3.6 - 0.4 - - - - - 4.8 24.8 12.8 - - - - - - - 15.4 - - - - - -
Concord Golf Club - - - - 1.2 10.6 4.2 - 1.2 - - - - - 6.0 23.2 14.4













Frenchs Forest (Frenchs Forest Rd) - - - - 1.0 - 8.0 - 9.0 - - - - - 13.0 37.0 6.0 - 3.0 - 6.0 - - - 1.0 - - - - - -
Holsworthy Aerodrome AWS - - - - 0.8 12.0 9.2 - - - - - - - 3.0 17.2 11.2 - - - 0.2 - - - 3.2 - - - - - 0.6
Horsley Park Equestrian Centre AWS 3.6 - - - 1.6 0.8 6.6 0.2 - - - - - - 5.0 18.4 15.8 - - - - 1.6 0.6 - 7.2 - - - - - -
Lucas Heights (ANSTO) 0.2 0.4 - - - 3.2 9.2 - - - - - - - 5.2 22.0 12.0 - - - 1.8 - - - 0.2 - 0.4 - - - 0.8
Macquarie Park (Willandra Village) 0.8 - - - 2.0 1.0 7.8 - 0.8 - - - - 7.8 26.6 14.0 - 0.6 - - 3.0 - - - 6.8 - - - - - -
Marrickville Golf Club - - - - 1.0 3.0 14.0 - - - - - - - 6.0 26.0 14.0 - - - - - - - 2.0 - - - - - -
Milperra Bridge (Georges River) - - - - - 7.0 5.0 - - - - - - - 2.0 17.0 14.0 - - - - - - - 5.0 - - - - - -
Mona Vale Golf Club 0.2 - - - - 50.8 11.6 - 3.2 0.2 - - - - 9.4 27.6 4.8 - 0.8 - 1.2 - - - 1.6 - - - - - -
North Parramatta (Burnside Homes) 0.5 - - - 1.0 3.5 3.5 - - - - - - - 6.0 35.0 18.5 - - - 1.0 - - - 7.0 - - - - - -
North Rocks (Muirfield Golf Club) 0.5 - - - 1.0 2.5 6.5 - 1.0 - - - - - 4.5 28.5 15.5 - - - 2.0 - - - 8.5 0.5 - - - - -
Parramatta North (Masons Drive) 1.0 - - - 1.6 4.0 4.2 - - - - - - - 6.0 34.0 16.6 0.4 0.4 - 1.2 - - - 7.8 - - - - - -
Peakhurst Golf Club - 1.0 - - 1.0 14.0 8.0 - - - - - - - 4.0 19.0 12.0 - - - - - - - 1.0 - - - - - -
Pennant Hills (Yarrara Road) 1.4 - - 0.6 1.0 8.6 - 3.0 - - - - - 8.2 27.0 17.6 1.0 - 2.8 - - - 23.4 - - - - - -
Penrith Lakes AWS 0.2 - - - 2.6 3.8 6.8 - - - - - -
6.2 19.4 21.4 - 0.4 0.2 - 1.0 - - 3.2 - - - - - -
Prospect Reservoir 5.8 - 0.3 - 1.9 13.8 4.6 - - - - - - - 4.8 22.2 17.6 - - - 0.2 - - - 33.0 - - - - - -
Randwick (Randwick St) - 0.4 - - 1.4 3.2 5.8 - 1.2 - - - - - 7.2 32.2 8.8 0.6 0.2 - - - - - 0.4 - - - - - -
Richmond RAAF 1.8 0.2 - - 2.6 1.2 6.6 0.2 0.4 - - - - - 6.0 23.4 26.2 0.2 - - - - - - 9.6 - - - - - -
Rose Bay (Royal Sydney Golf Club) - 0.9 - - 0.8 - 4.2 - - - - - - - 5.4 30.0 - - 0.2 - - - - - - - - - -

Rossmore (South Creek) - - - - - - - - - - - - - - 1.0 1.0














Sans Souci (Public School) - - - - 1.0 10.0 6.0 - - - - - - - 2.0 4.0 2.0 - - - - - - - - - - - - - -
Seven Hills (Radio FM 103.2) 2.0 - - - 3.0 9.0 3.5 - 0.5 - - - - - 3.5 21.0 15.0 - - - 2.5 - - - 11.0 - - - - - -
Seven Hills (Collins St)



2.8 9.4






15.4 26.0 16.6


4.8


13.8





Springwood (Valley Heights) 0.6 - - - 3.1 0.6 10.0 - 0.2 - - - 0.2 - 6.0 25.6 23.6 - 1.2 - - 0.8 - - 9.8 - - - - - -
St Ives (Richmond Avenue) 1.0



1.0 6.6
5.0




8.2 27.4

1.2
3.0


16.0





Sydney (Observatory Hill) - 0.2 - - 0.4 3.2 7.8 0.2 0.4 - - - - - 8.2 32.6 10.4 - - - - - - - 1.6 - - - - - -
Sydney Airport AMO - - - - 1.2 10.6 5.0 0.2 - - - - - - 4.8 28.0 12.0 - 0.2 - - - - - 0.2 - 0.2 - - - -
Sydney Botanic Gardens 0.8 - - - 0.8 3.0 10.1 0.2 1.0 - - - - - 9.6 30.4 8.4 - - - - - - - 1.2 - - - -

Terrey Hills AWS 0.2 0.2 - - 0.2 1.8 6.0 0.4 3.2 - - - - - 8.6 28.4 6.4 - 1.4 - 2.0 0.6 0.2 - 5.4 0.2 - - - - -
Turramurra (Kissing Point Road) 1.0


0.6 1.0 9.0
4.0




6.6 31.6 12.6 0.4 1.0
4.0


12.8




-
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 shown 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).
Rainfalls coloured
according to the amount
0 1.0 5.0 10.0 15.0 25.0 50.0 100 150 200 300 400 600 millimetres

Notes

The Monthly 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 8 am on Tuesday 3 January 2017. 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

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