New South Wales in December 2018: warmest December on record

A very warm December in New South Wales. As a whole, both mean and minimum temperatures were the warmest on record, while daytime temperatures were second-warmest. Rainfall was generally below average across the State, with parts of southwestern, southeastern and northeastern regions above average.

Dry with isolated heavy falls

An exceptionally warm month

Severe thunderstorms

  • Several severe thunderstorms impacted the State during the month; numerous reports of hail and damaging winds during December
  • Thunderstorms across eastern New South Wales between the 14th and the 17th resulted in heavy falls, downed trees and power outages
  • On the 20th, a severe thunderstorm produced damaging winds and reports of hail up to 8 cm in diameter from the Greater Sydney area

Further information

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Extremes in December 2018
Hottest day 47.3 °C at Bourke Airport AWS on the 20th
Warmest days on average 38.6 °C at Wanaaring Post Office
Coolest days on average 16.6 °C at Thredbo AWS
Coldest day 7.8 °C at Thredbo AWS on the 2nd
Coldest night -2.6 °C at Perisher Valley AWS on the 23rd
Coolest nights on average 6.9 °C at Perisher Valley AWS
Warmest nights on average 24.5 °C at Wanaaring (Borrona Downs AWS)
Warmest night 32.2 °C at Wanaaring (Borrona Downs AWS) on the 31st
Warmest on average overall 31.1 °C at Wanaaring (Borrona Downs AWS)
Coolest on average overall 11.9 °C at Thredbo AWS
Wettest overall 412.4 mm at Glenreagh (Coramba Street)
Driest overall 0.6 mm at Boullia
Wettest day 280.0 mm at Nymboida (Sutton St) on the 17th
Strongest wind gust 115 km/h at Thredbo AWS on the 2nd & at Murrurundi Gap AWS on the 20th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest December daily rainfall
New record
(mm)
Old
record
Years of
record
Nymboida (Sutton St) 280.0 on the 17th 144.0 on the 13th in 1991 96
Mandurama Post Office 49.4 on the 13th 48.3 on the 16th in 1973 41
Nana Glen (Cowling Close) 268.0 on the 17th 147.0 on the 1st in 2005 32
Grafton Research Stn 132.0 on the 17th 74.2 on the 28th in 1921 27
Green Cape AWS 48.8 on the 15th 45.0 on the 27th in 1999 25
Dorrigo (Old Coramba Rd) 220.0 on the 17th 106.0 on the 6th in 2014 22



Record highest December total rainfall
New record
(mm)
Old
record
Years of
record
Average for
December
Nymboida (Sutton St) 370.8 311.0 in 1991 92 124.2
Nana Glen (Cowling Close) 379.4 365.0 in 1988 60 132.4
Green Cape AWS 125.4 118.6 in 1999 24 47.5

Highest December total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
December
Wedderburn (Booalbyn) 121.0 150.9 in 1971* 57.1

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




Record lowest December total rainfall
New record
(mm)
Old
record
Years of
record
Average for
December
Green Pigeon (Morning View) 53.2 53.6 in 2001 50 175.3
Casino Airport AWS 34.2 34.8 in 2013 23 118.9

Lowest December total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
December
The Channon 34.6 28.4 in 1977* 151.2
Sapphire (Argyle) 31.8 14.8 in 1979* 91.6

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




Record highest December temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Cobar MO 45.6 on the 20th 44.1 on the 31st in 2005 57 32.7
Peak Hill Post Office 42.9 on the 20th 42.2 on the 22nd in 1972 51 31.5
Trangie Research Station AWS 44.6 on the 20th 43.3 on the 5th in 1981 51 32.0
Tocumwal Airport 43.5 on the 27th = 43.5 on the 31st in 2005 49 29.6
Corowa Airport 44.0 on the 27th 42.5 on the 22nd in 1972 44 30.1
Young Airport 41.4 on the 28th 41.1 on the 21st in 1994 28 29.2
Wanaaring Post Office 46.6 on the 20th 46.1 on the 31st in 2005 27 35.2
Albury Airport AWS 43.2 on the 27th 41.5 on the 20th in 2015 26 29.4
Cobar Airport AWS 45.8 on the 20th 44.0 on the 22nd in 2013 26 33.3
Condobolin Airport AWS 44.5 on the 20th 43.4 on the 19th in 2017 26 32.0
Narrandera Airport AWS 43.2 on the 27th = 43.2 on the 20th in 2015 24 30.9
Parkes Airport AWS 42.0 on the 20th = 42.0 on the 31st in 2005 22 31.0
Tibooburra Airport 46.4 on the 19th 45.9 on the 18th in 2017 22 35.2
Bourke Airport AWS 47.3 on the 20th 46.3 on the 31st in 2005 21 35.4



Record lowest December daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Hillston Airport 18.0 on the 14th 18.6 on the 6th in 1966 61 31.6



Record highest December mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Cobar MO 36.1 35.9 in 2005 56 32.7
Tocumwal Airport 32.5 = 32.5 in 1994 48 29.6
Griffith Airport AWS 34.0 33.9 in 1982 43 31.0
Thredbo AWS 16.6 = 16.6 in 1972 33 14.2
Broken Hill Airport AWS 34.6 34.3 in 1994 29 31.4
Young Airport 32.2 32.1 in 1994 27 29.2
Wanaaring Post Office 38.6 38.1 in 2005 26 35.2
Cobar Airport AWS 36.2 35.7 in 2005 25 33.3
Condobolin Airport AWS 34.5 34.2 in 1997 25 32.0
Gundagai (Nangus Rd) 32.2 32.1 in 1997 23 29.8
Inverell (Raglan St) 32.0 31.3 in 2016 23 29.0
Narrandera Airport AWS 33.7 32.8 in 2015 23 30.9
Armidale (Tree Group Nursery) 28.1 = 28.1 in 2016 21 25.5
Deniliquin Airport AWS 33.6 32.8 in 2015 21 30.4
Tibooburra Airport 38.0 37.4 in 1997 21 35.2

Highest December mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
December
Hillston Airport 34.5 34.6 in 1913* 31.6
Thredbo Village 21.8 21.9 in 1972* 19.2
Tumbarumba Post Office 29.6 29.8 in 1972* 26.1
Wellington (D&J Rural) 33.7 34.8 in 1990 31.5
Inverell Research Centre 31.5 32.5 in 1990* 28.4
Albury Airport AWS 32.6 32.7 in 1994 29.4
Cooma Airport AWS 26.8 28.6 in 1994 24.0
Corowa Airport 32.8 =32.8 in 1994 30.1
Hume Reservoir 31.7 31.8 in 1994 28.6
Grenfell (Manganese Rd) 32.3 33.8 in 1994* 29.9
Lake Cargelligo Airport 34.4 34.7 in 1994* 32.5
Cootamundra Airport 31.6 31.7 in 1997 29.3
Orange Airport AWS 26.7 26.8 in 1997 24.7
Parkes Airport AWS 33.1 33.3 in 1997 31.0
Tuggeranong (Isabella Plains) AWS 29.1 29.9 in 1997 27.1
Wagga Wagga AMO 32.2 32.3 in 1997 29.5

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




Record highest December daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Hume Reservoir 28.4 on the 29th 26.4 on the 21st in 1994 52 14.4
Corowa Airport 27.0 on the 29th 26.5 on the 20th in 1994 44 13.7
Griffith Airport AWS 30.1 on the 29th 30.0 on the 24th in 2009 43 15.3
Thredbo AWS 16.2 on the 29th 15.3 on the 20th in 2015 34 4.9
Albury Airport AWS 27.2 on the 29th 25.2 on the 22nd in 2013 26 14.0
Cootamundra Airport 24.7 on the 28th 24.3 on the 29th in 2016 24 12.9
Cabramurra SMHEA AWS 19.1 on the 29th 19.0 on the 20th in 2015 23 9.0



Record highest December mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Menindee Post Office 20.1 19.9 in 2015 107 16.9
Balranald (RSL) 18.2 17.9 in 1917 102 14.8
Lake Cargelligo Airport 20.2 19.7 in 1919 93 16.7
Hillston Airport 20.0 19.9 in 1914 86 16.4
Hume Reservoir 17.8 17.1 in 1994 86 14.4
Cobar MO 21.3 20.8 in 2003 56 18.8
Tumbarumba Post Office 12.9 12.6 in 1975 51 9.7
Tocumwal Airport 17.0 15.9 in 2015 48 14.1
Thredbo Village 8.1 7.8 in 2017 47 5.5
Montague Island Lighthouse 18.1 17.9 in 2017 46 16.1
Griffith Airport AWS 19.2 17.7 in 2003 42 15.3
Narooma (Marine Rescue) 17.1 = 17.1 in 2017 33 15.2
Broken Hill Airport AWS 20.2 19.9 in 2015 29 17.3
Bombala AWS 11.6 10.9 in 2017 27 9.0
Albury Airport AWS 16.7 15.7 in 2007 25 14.0
Cobar Airport AWS 20.9 20.1 in 2003 25 18.0
Condobolin Airport AWS 19.8 18.7 in 1994 25 16.3
Walgett Airport AWS 20.4 20.3 in 1994 25 18.5
Cootamundra Airport 15.8 15.2 in 2017 23 12.9
Forbes Airport AWS 17.7 17.4 in 2003 23 15.3
Inverell (Raglan St) 16.2 = 16.2 in 2014 23 13.9
Narrandera Airport AWS 18.6 17.2 in 2017 23 14.9
Cabramurra SMHEA AWS 11.5 10.7 in 2017 22 9.0
Coonamble Airport AWS 20.1 19.7 in 2016 21 18.0
Deniliquin Airport AWS 16.9 16.6 in 2015 21 14.2
Khancoban AWS 13.0 = 13.0 in 2017 21 11.3
Lightning Ridge Visitor Information Cent 22.6 22.2 in 2005 21 20.2
Parkes Airport AWS 17.1 = 17.1 in 2003 21 14.6
Tibooburra Airport 23.4 23.1 in 2016 21 21.6
Merimbula Airport AWS 15.6 = 15.6 in 2017 20 13.7

Highest December mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
December
Wagga Wagga AMO 17.5 17.6 in 1942 13.9
Lake Victoria Storage 17.9 18.3 in 1975* 15.3
Thredbo AWS 7.3 7.6 in 1975* 4.9
Cooma Airport AWS 11.5 11.6 in 1994 8.6
Trangie Research Station AWS 19.3 =19.3 in 1994 16.6

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




Record lowest December mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
December
South West Rocks (Smoky Cape Lighthouse) 14.5 16.1 in 1962 79 18.5



Record highest December mean temperature
New record
(°C)
Old
record
Years of
record
Average for
December
Hillston Airport 27.2 26.9 in 1914 86 24.0
Hume Reservoir 24.8 24.5 in 1994 86 21.5
Wagga Wagga AMO 24.8 24.7 in 1994 76 21.7
Cobar MO 28.7 28.1 in 2005 56 25.7
Tumbarumba Post Office 21.2 20.7 in 1975 50 17.9
Tocumwal Airport 24.8 24.1 in 2015 48 21.8
Thredbo Village 14.9 14.7 in 2003 47 12.4
Montague Island Lighthouse 20.6 = 20.6 in 2016 46 18.9
Gulgong Post Office 24.5 = 24.5 in 1979 44 22.4
Griffith Airport AWS 26.6 25.3 in 2003 41 23.2
Broken Hill Airport AWS 27.4 27.1 in 2015 29 24.4
Goulburn Airport AWS 20.4 20.1 in 2017 27 18.3
Bega AWS 21.0 20.9 in 2016 26 19.2
Wanaaring Post Office 30.4 30.0 in 2003 26 27.5
Albury Airport AWS 24.6 23.9 in 1994 25 21.7
Cobar Airport AWS 28.5 27.7 in 2003 25 25.7
Condobolin Airport AWS 27.2 26.2 in 1994 25 24.1
Walgett Airport AWS 28.5 = 28.5 in 2016 25 26.5
Cootamundra Airport 23.7 22.6 in 2003 23 21.1
Inverell (Raglan St) 24.1 23.4 in 2009 23 21.4
Narrandera Airport AWS 26.1 24.7 in 2015 23 22.9
Cabramurra SMHEA AWS 15.9 15.2 in 2003 22 13.7
Gundagai (Nangus Rd) 24.4 24.0 in 2016 22 22.0
Orange Airport AWS 19.4 = 19.4 in 2017 22 17.6
Deniliquin Airport AWS 25.3 24.7 in 2015 21 22.3
Khancoban AWS 21.4 = 21.4 in 2015 21 19.8
Parkes Airport AWS 25.1 24.8 in 2003 21 22.8
Tibooburra Airport 30.7 30.0 in 2017 21 28.4
Merimbula Airport AWS 20.1 = 20.1 in 2016 20 18.5

Highest December mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
December
Lake Cargelligo Airport 27.3 27.7 in 1919* 24.6
Quirindi Post Office 25.3 25.8 in 1990 23.0
Inverell Research Centre 23.7 24.4 in 1990* 21.7
Thredbo AWS 11.9 12.0 in 1975* 9.6
Cooma Airport AWS 19.1 20.1 in 1994 16.3
Trangie Research Station AWS 27.0 27.1 in 1994 24.3
Young Airport 23.2 23.4 in 1994 20.6
Grenfell (Manganese Rd) 24.3 25.6 in 1994* 22.2
Tuggeranong (Isabella Plains) AWS 21.3 21.7 in 1997 19.7
Bombala AWS 18.2 =18.2 in 1998 16.1

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




Lowest December mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
December
South West Rocks (Smoky Cape Lighthouse) 20.7 =20.7 in 1967 22.2



Summary statistics for December 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
December
2018
Diff
from
average
Highest for
December
2018
Mean for
December
2018
Diff
from
average
Lowest for
December
2018
Total for
December
2018
Average
for
December
Rank of
December
2018
Fraction of
December
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 36.3 +2.4 44.9 19th 21.9 +2.5 11.5 15th 11.4 23.6 average 48%
Smithville AWS 37.9   46.7 19th 22.2   11.1 14th 2.2
Tibooburra Airport 38.0 +2.8 46.4 19th 23.4 +1.8 12.4 14th 0.8 15.3 low 5%
Wanaaring (Borrona Downs AWS) 37.7   45.2 19th 24.5   13.5 14th 0
White Cliffs AWS 37.0 +2.4 45.8 19th 23.2 +2.4 11.5 15th 7.0 24.7 low 28%
Wilcannia Aerodrome AWS 36.7 +2.1 45.0 30th 21.1 +2.6 10.9 15th 13.2 20.1 average 66%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 34.6 +3.2 43.4 19th 20.2 +2.9 9.5 14th 9.6 21.6 average 44%
Lake Victoria Storage 33.1 +2.7 44.7 27th 17.9 +2.6 10.5 14th 38.0 20.7 high 184%
Menindee Post Office 35.9 +3.0 45.2 27th 20.1 +3.2 11.0 14th 20.2 22.0 average 92%
Mulurulu AWS 34.3   44.4 28th 20.2   10.1 3rd 25.6
Pooncarie Mail Agency 35.5 +2.0 45.7 27th 19.5 +2.8 10.8 14th 25.0 21.5 high 116%
Western (Upper Darling) (district 48)
Bourke Airport AWS 37.8 +2.4 47.3 20th 22.1 +1.7 13.2 3rd 8.6 34.8 average 25%
Brewarrina Hospital 37.1 +2.0 45.0 20th 20.4 +1.5 11.0 15th 7.8 38.7 low 20%
Cobar Airport AWS 36.2 +2.9 45.8 20th 20.9 +2.9 11.8 14th 5.8 25.8 low 22%
Cobar MO 36.1 +3.4 45.6 20th 21.3 +2.5 11.3 14th 8.0 35.5 low 23%
Lightning Ridge Visitor Information Cent 36.2 +1.6 43.4 20th 22.6 +2.4 15.4 15th 12.8 57.4 low 22%
Noona AWS 36.3   44.4 20th 22.4   12.0 14th 2.4
Wanaaring (Delta AWS) 37.4   47.1 20th 22.6   13.7 14th 14.4
Wanaaring Post Office 38.6 +3.4 46.6 20th 22.3 +2.4 13.5 14th 2.0 28.7 low 7%
Western (Southwest Plains) (district 49)
Balranald (RSL) 32.9 +2.0 43.4 28th 18.2 +3.4 10.0 1st 52.5 26.2 high 200%
Euabalong (Mount Hope AWS) 34.5   43.0 28th 19.3   9.7 3rd 40.2
Ivanhoe Aerodrome AWS 35.0 +1.7 44.2 28th 20.6 +2.4 9.8 14th 17.2 18.6 average 92%
Central Western Plains (South) (district 50)
Condobolin Airport AWS 34.5 +2.5 44.5 20th 19.8 +3.5 12.1 3rd 10.4 37.9 low 27%
Peak Hill Post Office 33.8 +2.3 42.9 20th 19.3 +2.0 10.7 3rd 44.0 51.5 average 85%
West Wyalong Airport AWS 33.5 +2.4 42.1 28th 18.6 +3.2 12.6 14th 20.2 51.9 average 39%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 35.1 +1.9 42.8 20th 20.1 +2.1 12.9 1st 53.0 64.9 average 82%
Nyngan (Girilambone (Okeh) AWS) 36.2   46.6 20th 21.7   15.1 14th 12.0
Trangie Research Station AWS 34.8 +2.8 44.6 20th 19.3 +2.7 11.9 3rd 28.8 42.7 average 67%
Walgett (Brewon AWS) 36.6   44.8 20th 20.6   11.6 15th 12.6
Northwest Plains (West) (district 52)
Mungindi Post Office 37.1 +2.5 45.1 21st 21.4 +2.4 13.6 1st 8.6 51.5 low 17%
Walgett Airport AWS 36.7 +2.3 43.6 20th 20.4 +1.9 12.1 1st 16.6 49.4 low 34%
Northwest Plains (East) (district 53)
Moree Aero 35.2 +2.5 42.7 21st 20.2 +1.7 14.9 1st 25.2 66.6 low 38%
Northwest Slopes (North) (district 54)
Narrabri Airport AWS 34.9 +2.0 39.9 2nd 19.7 +1.3 12.3 1st 56.0 67.8 average 83%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 33.8 +1.5 38.2 2nd 16.9 +0.5 11.1 1st 43.8 78.6 low 56%
Gunnedah Resource Centre 33.6 +2.5 38.0 21st 19.1 +1.5 14.2 3rd 31.4 70.7 low 44%
Quirindi Post Office 33.5 +2.3 38.6 28th 17.2 +2.4 11.1 24th 88.0 80.4 average 109%
Tamworth Airport AWS 32.9 +2.4 37.7 31st 16.7 +1.1 11.0 1st 51.6 78.2 average 66%
Woolbrook (Danglemah Road) 28.8 +2.6 33.6 28th 12.3 +1.5 5.5 1st 75.2 100.3 average 75%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 28.1 +2.6 32.2 31st 11.1 -0.3 5.6 1st 57.6 85.6 low 67%
Armidale Airport AWS 27.1 +2.3 31.6 31st 12.2 +0.1 7.8 23rd 76.2 96.7 low 79%
Glen Innes Airport AWS 27.3 +2.3 32.9 21st 11.9 +0.6 3.8 1st 80.2 111.4 low 72%
Guyra Hospital 24.9 +2.2 29.0 21st 11.1 +0.3 6.4 7th 85.6 109.7 low 78%
Inverell (Raglan St) 32.0 +3.0 37.4 21st 16.2 +2.3 10.2 1st 46.0 115.8 v low 40%
Inverell Research Centre 31.5 +3.1 37.4 21st 15.9 +0.8 11.7 24th 37.6 98.7 v low 38%
Tenterfield (Federation Park) 26.9 +0.3 34.0 2nd 13.1 +0.1 9.0 11th 73.2 105.1 average 70%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 28.9 +2.0 36.2 21st 16.7 +0.6 12.8 7th 71.8 148.1 low 48%
Upper North Coast (district 58)
Ballina Airport AWS 27.8 +0.3 34.2 21st 18.5 +0.2 13.5 26th 36.6 133.6 low 27%
Byron Bay (Cape Byron AWS) 27.8 +1.3 31.3 29th 20.3 +0.4 16.6 5th 56.6 123.0 low 46%
Casino Airport AWS 32.2 +2.3 42.0 21st 16.5 -1.4 11.9 28th 34.2 118.9 lowest 29%
Evans Head RAAF Bombing Range AWS 28.6 +0.6 35.5 2nd 19.0 +0.3 16.2 27th 62.2 91.2 average 68%
Grafton Airport AWS 30.0 +1.0 40.3 2nd 17.6 +0.1 13.2 2nd 203.0 123.5 v high 164%
Grafton Research Stn 30.7 +0.8 41.0 2nd 18.1 +0.1 14.4 2nd 191.2 102.9 high 186%
Lismore Airport AWS 30.5 +1.1 40.6 21st 16.6 -0.8 11.8 28th 27.6 117.5 v low 23%
Murwillumbah (Bray Park) 29.0 -0.1 36.9 21st 18.6 +0.1 14.0 25th 140.8 167.9 average 84%
Yamba Pilot Station 27.1 +1.1 29.7 2nd 19.9 +0.7 17.5 25th 89.4 115.9 average 77%
Lower North Coast (district 59)
Coffs Harbour Airport 27.4   33.3 2nd 19.5   16.0 4th 201.4
Dorrigo (Old Coramba Rd) 24.9 +1.0 33.0 2nd 14.4 +0.5 10.2 2nd 320.8 179.5 v high 179%
Kempsey Airport AWS 29.1 +0.8 38.7 2nd 15.5 -0.8 11.5 9th 73.8 101.6 average 73%
South West Rocks (Smoky Cape Lighthouse) 26.9 +0.9 29.4 4th 14.5 -4.0 10.8 12th 119.6 118.3 average 101%
Manning (district 60)
Forster - Tuncurry Marine Rescue 25.4 -0.1 37.3 2nd 18.5 +0.4 15.5 1st 81.3 91.7 average 89%
Port Macquarie Airport AWS 28.1 +1.3 35.3 2nd 17.6 +0.7 11.6 8th 53.8 112.2 low 48%
Taree Airport AWS 28.7 +0.9 37.5 2nd 17.4 +0.7 13.2 1st 51.2 79.3 low 65%
Yarras (Mount Seaview) 30.2 +1.5 37.5 2nd 17.2 +1.0 12.6 2nd 242.0 188.5 high 128%
Hunter (district 61)
Cessnock Airport AWS 31.4 +2.4 39.3 29th 15.8 +0.7 10.1 24th 88.0 80.0 average 110%
Cooranbong (Lake Macquarie AWS) 28.5 +1.1 37.3 29th 16.1 0.0 10.8 7th 59.2 83.2 low 71%
Gosford AWS 27.6   35.9 29th 17.5   12.3 24th
Maitland Airport AWS 31.3   39.1 29th 16.5   11.7 24th 96.4
Mangrove Mountain AWS 29.1 +2.8 38.2 29th 15.9 +0.4 10.8 24th 108.4 89.6 average 121%
Merriwa (Roscommon) 31.6 +2.1 37.3 31st 15.1 +0.5 10.1 3rd 140.8 73.3 high 192%
Murrurundi Gap AWS 28.2 +1.8 33.7 28th 16.5 +1.7 8.8 24th 82.6 88.4 average 93%
Nelson Bay (Nelson Head) 26.3 +0.2 34.5 2nd 18.2 +0.5 12.5 10th 50.3 92.8 low 54%
Newcastle Nobbys Signal Station AWS 25.1 +0.2 36.6 2nd 19.1 +1.1 15.2 24th 39.6 80.3 low 49%
Newcastle University 29.5 +1.6 38.0 31st 18.0 +0.1 13.2 24th 29.6 69.4 low 43%
Norah Head AWS 26.0 +1.0 35.4 2nd 18.9 +0.5 15.2 24th 48.4 67.9 low 71%
Paterson (Tocal AWS) 31.1 +2.0 39.0 29th 17.0 +0.7 12.2 24th 82.2 81.7 average 101%
Scone Airport AWS 32.8 +2.7 39.0 31st 16.6 +1.3 9.5 24th 72.6 76.8 average 95%
Singleton (Defence) 31.7   40.2 31st 17.5   11.6 24th 61.2
Singleton STP 31.8 +1.6 40.0 31st     9.8 24th 65.7 72.4 average 91%
Williamtown RAAF 29.9 +2.6 38.8 30th 17.4 +0.8 12.8 7th 51.4 78.6 average 65%
Central Tablelands (North) (district 62)
Gulgong Post Office 32.4 +2.6 38.5 28th 16.6 +1.6 10.3 3rd 63.4 67.3 average 94%
Mudgee Airport AWS 31.2 +2.5 37.4 28th 14.9 +1.2 7.3 3rd 86.0 80.7 average 107%
Nullo Mountain AWS 24.8 +2.5 32.1 28th 13.9 +2.0 7.9 24th 83.8 89.5 average 94%
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 29.1 +2.6 37.0 28th 13.1 +1.5 6.3 3rd 56.2 66.2 average 85%
Bathurst Airport AWS 28.6 +2.0 35.6 28th 13.6 +1.9 6.8 3rd 81.6 74.5 average 110%
Lithgow (Cooerwull) 25.9 +1.6 33.8 29th 11.6 +0.2 5.2 1st 126.6 79.0 high 160%
Marrangaroo (Defence) 25.8   33.1 28th 10.6   3.3 3rd 119.6
Mount Boyce AWS 25.3 +2.8 33.8 29th 13.8 +2.2 7.5 3rd 86.2 84.7 average 102%
Oberon (Albion St) 25.2 +1.9 32.6 29th 10.7 +1.6 2.5 3rd 71.6 74.6 average 96%
Orange Airport AWS 26.7 +2.0 34.1 28th 12.1 +1.6 4.8 3rd 71.6 90.1 average 79%
Springwood (Valley Heights) 28.7 +1.7 38.5 28th 16.0 +0.5 11.6 24th 132.2 101.8 high 130%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 32.3 +1.8 37.0 27th 15.5 +2.2 8.8 1st 51.3 70.4 average 73%
Coonabarabran Airport AWS 31.5 +2.4 36.1 20th 17.7 +1.6 11.3 23rd 52.6 89.6 average 59%
Dunedoo Post Office 33.6 +2.7 40.5 28th 17.4 +2.2 10.0 3rd 45.8 62.7 average 73%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 32.9 +2.2 40.3 28th 16.4 +2.0 9.3 3rd 40.6 69.3 low 59%
Dubbo Airport AWS 33.8 +2.4 41.4 20th 17.1 +1.2 9.0 3rd 34.4 61.3 average 56%
Forbes Airport AWS 33.1 +1.4 41.0 28th 17.7 +2.4 10.6 3rd 39.8 54.3 average 73%
Parkes Airport AWS 33.1 +2.1 42.0 20th 17.1 +2.5 7.9 3rd 28.2 54.5 low 52%
Wellington (D&J Rural) 33.7 +2.2 40.0 20th 16.4 +1.3 8.5 3rd 56.6 56.6 average 100%
Metropolitan (East) (district 66)
Bankstown Airport AWS 29.8 +2.3 38.9 29th 17.6 +0.9 12.6 24th 114.8 68.5 high 168%
Canterbury Racecourse AWS 27.9 +1.3 36.1 30th 17.6 +0.7 11.8 24th 92.0 65.8 high 140%
Holsworthy Aerodrome AWS 29.3   38.7 29th 17.4   10.7 24th 120.2
Parramatta North (Masons Drive) 29.7 +2.2 38.3 29th 16.7 +0.4 10.2 24th 87.8 73.4 high 120%
Sydney (Observatory Hill) 26.8 +1.6 34.0 2nd 19.3 +1.7 14.9 24th 95.0 77.6 high 122%
Sydney Airport AMO 28.4 +2.5 35.9 2nd 19.2 +1.6 15.0 24th 66.4 73.5 average 90%
Sydney Harbour (Wedding Cake West) 23.5 -0.1 33.5 2nd 19.4 +0.5 15.7 23rd
Sydney Olympic Park AWS (Archery Centre) 28.8   36.4 30th 18.1   12.4 24th 66.0
Terrey Hills AWS 26.3 +0.8 33.2 2nd 17.4 +0.7 12.7 24th 124.6 84.4 high 148%
Metropolitan (West) (district 67)
Horsley Park Equestrian Centre AWS 29.6 +1.3 38.4 28th 16.9 +0.7 11.4 24th 130.0 66.4 v high 196%
Penrith Lakes AWS 31.5 +2.0 41.4 28th 17.6 +0.5 12.5 24th 93.6 63.3 high 148%
Richmond RAAF 31.0 +2.1 39.6 28th 17.0 +0.8 11.9 24th 101.2 70.0 high 145%
Illawarra (district 68)
Albion Park (Wollongong Airport) 26.3 +0.7 33.8 2nd 16.0 +0.7 9.9 24th 49.2 66.1 low 74%
Bellambi AWS 24.1 +0.1 33.7 2nd 18.2 +0.6 14.6 24th 103.0 74.9 high 138%
Camden Airport AWS 30.2 +1.6 39.6 28th 16.3 +1.0 10.5 24th 123.0 57.9 high 212%
Campbelltown (Mount Annan) 29.9 +1.7 39.2 28th 16.0 +0.7 10.7 24th 138.4 61.8 v high 224%
High Range AWS (Wanganderry) 25.6   36.2 28th 14.3   9.1 3rd 54.4
Holsworthy (Defence) 29.6   40.9 28th 16.4   10.4 24th 169.2
Jervis Bay (Point Perpendicular) 24.5 +1.0 30.0 2nd 18.1 +1.2 13.9 3rd 90.8 83.0 average 109%
Jervis Bay NSW (Jervis Bay Airfield AWS) 24.7   32.2 2nd 17.2   12.6 3rd 80.4
Kiama (Bombo Headland) 24.3 +0.5 33.5 2nd 18.1 +0.8 14.8 24th 82.4 78.6 average 105%
Moss Vale AWS 25.7 +1.6 35.6 28th 14.1 +1.9 9.3 3rd 90.8 55.1 high 165%
Nowra RAN Air Station AWS 27.4 +1.3 39.0 28th 16.1 +1.2 11.2 7th 88.6 77.2 average 115%
South Coast (district 69)
Bega AWS 26.7 +1.7 36.6 27th 15.1 +1.7 6.7 3rd 89.4 65.1 high 137%
Braidwood Racecourse AWS 26.8 +2.2 35.5 28th 12.3 +1.7 5.1 3rd 113.2 65.9 high 172%
Green Cape AWS 23.1 +0.9 27.9 25th 16.9 +1.1 11.7 3rd 125.4 47.5 highest 264%
Merimbula Airport AWS 24.7 +1.4 30.2 10th 15.6 +1.9 8.0 3rd 108.0 62.4 high 173%
Montague Island Lighthouse 23.0 +1.2 27.3 30th 18.1 +2.0 13.8 22nd 108.0 66.6 high 162%
Moruya Airport AWS 25.1 +1.2 40.3 28th 15.6 +1.4 8.7 3rd 101.6 73.2 high 139%
Moruya Heads Pilot Station 23.7 +0.9 37.2 28th 16.7 +2.0 11.6 23rd 97.2 74.7 high 130%
Narooma (Marine Rescue) 23.5 +1.4 28.7 28th 17.1 +1.9 12.2 3rd 99.4 74.2 high 134%
Nerriga AWS 27.2   37.6 28th 13.4   6.9 24th 87.2
Ulladulla AWS 24.0 +1.0 31.6 2nd 17.4 +1.5 13.1 22nd 102.8 73.1 high 141%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 26.2 +2.3 35.5 27th 12.0 +3.1 2.6 3rd 66.0 64.4 average 102%
Bombala AWS 24.7 +1.5 34.2 27th 11.6 +2.6 1.5 3rd 68.6 56.4 high 122%
Canberra Airport 29.3 +2.0 36.8 28th 13.7 +1.7 7.6 23rd 106.4 84.7 high 126%
Cooma Airport AWS 26.8 +2.8 33.0 27th 11.5 +2.9 3.0 3rd 60.4 53.6 average 113%
Cooma Visitors Centre 27.4 +2.3 34.9 29th     2.0 3rd 28.8 56.5 low 51%
Goulburn Airport AWS 28.4 +2.6 37.4 28th 12.4 +1.6 5.5 23rd 58.0 57.6 average 101%
Goulburn TAFE 28.3 +2.3 38.0 28th 13.5 +1.6 7.5 23rd 64.2 62.8 average 102%
Mount Ginini AWS 20.2 +2.4 27.8 28th 9.7 +2.4 1.2 3rd 145.6 110.4 average 132%
Taralga Post Office 26.7 +2.2 36.0 28th 12.0 +2.1 3.0 3rd 69.9 66.7 average 105%
Tuggeranong (Isabella Plains) AWS 29.1 +2.0 36.9 29th 13.4 +1.1 4.8 3rd 109.4 70.2 high 156%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 18.9   25.6 27th 6.9   -2.6 23rd 125.6
Thredbo AWS 16.6 +2.4 23.5 27th 7.3 +2.4 -1.0 23rd 77.8 115.3 low 67%
Thredbo Village 21.8 +2.6 29.0 27th 8.1 +2.6 0.0 23rd 119.4 124.4 average 96%
Southwest Slopes (South) (district 72)
Albury Airport AWS 32.6 +3.2 43.2 27th 16.7 +2.7 9.5 3rd 39.0 42.5 average 92%
Cabramurra SMHEA AWS 20.3 +1.8 28.2 27th 11.5 +2.5 2.4 3rd 70.8 90.3 average 78%
Hume Reservoir 31.7 +3.1 41.4 27th 17.8 +3.4 8.4 3rd 46.6 50.1 average 93%
Khancoban AWS 29.8 +1.5 37.4 27th 13.0 +1.7 5.0 3rd 69.0 77.8 average 89%
Tumbarumba Post Office 29.6 +3.5 37.0 27th 12.9 +3.2 4.1 3rd 64.2 71.2 average 90%
Wagga Wagga AMO 32.2 +2.7 41.2 28th 17.5 +3.6 10.1 3rd 56.2 45.9 average 122%
Southwest Slopes (North) (district 73)
Cootamundra Airport 31.6 +2.3 40.0 28th 15.8 +2.9 7.8 3rd 57.5 55.3 average 104%
Grenfell (Manganese Rd) 32.3 +2.4 40.6 28th 16.4 +1.9 8.6 3rd 30.6 55.8 average 55%
Gundagai (Nangus Rd) 32.2 +2.4 40.0 28th 16.5 +2.3 9.0 3rd 52.2 61.4 average 85%
Temora Airport 33.4 +2.7 42.6 27th 16.9 +2.8 10.2 3rd 19.6 46.2 low 42%
Young Airport 32.2 +3.0 41.4 28th 14.4 +2.4 4.9 3rd 21.8 58.9 average 37%
Riverina (East) (district 74)
Corowa Airport 32.8 +2.7 44.0 27th 15.8 +2.1 8.4 4th 47.5 41.0 average 116%
Deniliquin Airport AWS 33.6 +3.2 44.3 27th 16.9 +2.7 9.6 1st 16.2 30.5 average 53%
Kapooka (Defence) 32.7   42.1 27th 17.3   9.7 3rd 55.0
Narrandera Airport AWS 33.7 +2.8 43.2 27th 18.6 +3.7 12.1 14th 41.6 37.3 average 112%
Tocumwal Airport 32.5 +2.9 43.5 27th 17.0 +2.9 9.4 1st 49.7 34.7 high 143%
Riverina (West) (district 75)
Griffith Airport AWS 34.0 +3.0 43.5 28th 19.2 +3.9 9.2 3rd 21.8 33.7 average 65%
Hay Airport AWS 34.1 +2.2 44.8 28th 18.7 +3.0 10.0 1st 9.2 37.2 v low 25%
Hillston Airport 34.5 +2.9 43.5 28th 20.0 +3.6 11.0 14th 23.6 30.5 average 77%
Lake Cargelligo Airport 34.4 +1.9 43.1 28th 20.2 +3.5 10.6 14th 21.6 37.1 average 58%
Note: From 2017, information about Lord Howe and Norfolk Islands can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in New South Wales 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 1 pm on Wednesday 9 January 2019. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

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