NSW in September 2012: Spring opens with warm, dry days and cool nights

  • Driest September since 2007
  • 9th warmest September on record for maximum temperatures
  • Coolest minimum temperatures since 1994

Rainfall - Driest September since 2007

NSW recorded a statewide average rainfall of 16.7 mm during September, well below the historical average of 34.7 mm and the driest September since 8.5 mm was recorded in 2007. Much of NSW recorded less than half of its average rainfall for the month, with particularly dry conditions in the southwest and along the coast, including the driest September on record at Narrandera and the driest since 1946 at Wagga Wagga. The Murray Darling Basin also recorded 15.9 mm of rain, well below its historical average of 34 mm.

The dry conditions during the month were associated with a strong high pressure ridge, with most cold fronts failing to produce rain beyond the alpine regions. The first rain event of the month occurred on the 17th and 18th as thunderstorms developed across much of the state, with widespread two-day totals of 10-25 mm in the eastern part of the state, reaching 64.2 mm at Pokolbin in the Hunter Valley. A cold front also crossed the state on the 28th, with associated rain and thunderstorms causing falls of up to 97 mm at Thredbo and widespread totals above 25 mm, including the wettest September day on record at Mandurama with 48.6 mm.

See a list of September rainfall records.

Temperature - 7th warmest September days on record

NSW recorded a statewide average maximum temperature of 22.8 °C during September, 2.2 °C above the historical average. This is the 9th warmest September on record for NSW, and the warmest September since 2006, associated with generally dry, sunny conditions and a lack of cold days during the month. All of the state was at least 1 °C above normal during the month, with most of western NSW at least 2 °C above normal and almost all of the state in the warmest 20% of years, although no stations broke longterm records.

In contrast, the statewide average minimum temperature was 6.6 °C, 0.5 °C below the historical average and the coolest September since 1994, with most of the state recording below average minimums. Nights were particularly cold in central NSW at the start of the month, with most of the state recording temperatures at least 6 °C below normal between the 1st and the 3rd. Almost 70% of NSW had temperatures in the coldest 1% of records on the 2nd, with 14.7% of the state recording its coldest September night on record. Notably, Coonabarabran recorded -5 °C on both the 2nd and the 3rd, breaking its 55-year record of -4.4 °C on two consecutive days.

In comparison, much of NSW experienced very warm conditions at the end of the month during a period of warm northwesterly winds ahead of a cold front. Minimum temperatures were as high as 25.6 °C at Ivanhoe on the 28th, the second warmest minimum temperature ever recorded in NSW and just shy of the record 25.8 °C at Bourke Airport on 23 September 2003. Tibooburra and Fowlers Gap also recorded minimum temperatures above 24.5 °C, in the five warmest nights on record.

Almost a third of NSW (31%) experienced its warmest September night on record on the 28th, with long record stations such as Tibooburra, Wagga Wagga and Hay exceeding their previous records by more than 2 °C. This was bookended by very warm daytime temperatures on the 27th and 28th, although failing to break records. Temperatures reached 37.7 °C at Tibooburra on the 27th with large areas of western NSW more than 12 °C above normal, with temperatures more than 8 °C above normal in the north and east on the 28th, reaching 35.3 °C at Walgett Airport.

The average temperature across NSW during September was consequently 14.7 °C, 0.9 °C above the historical average for the 18th consecutive warm September. As a consequence of the warm days and cool nights, the diurnal temperature range was 2.7 °C above normal and the second highest on record for September.

See a list of September temperature records.

Other phenomena

Much of southeast NSW recorded strong wind gusts above 90 km/hr between the 5th and 7th, including 109 km/hr at Bega on the 6th and 117 km/hr at Mt Boyce on the 7th, causing damage in areas including Sydney, Bega and Jindabyne. Widespread thunderstorm activity was reported across the state on the 17th and 18th, with several reports of small hail.

Further information

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Extremes in September 2012
Hottest day 37.7 °C at Tibooburra Airport on the 27th
37.7 °C at Tibooburra Post Office on the 27th
Warmest days on average 27.6 °C at Mungindi Post Office
Coolest days on average 3.9 °C at Thredbo AWS
Coldest day -4.5 °C at Thredbo AWS on the 29th
Coldest night -9.0 °C at Cooma Airport AWS on the 2nd
Coolest nights on average -2.3 °C at Thredbo AWS
Warmest nights on average 14.7 °C at Byron Bay (Cape Byron AWS)
Warmest night 25.6 °C at Ivanhoe Aerodrome AWS on the 28th
Warmest on average overall 18.5 °C at Lismore (Richmond Hill)
Coolest on average overall 0.8 °C at Thredbo AWS
Wettest overall 234.2 mm at Perisher Valley AWS
Wettest day 97.0 mm at Thredbo Village on the 29th
Highest wind gust 120 km/h at Thredbo AWS on the 7th

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 September daily rainfall
Highest daily rainfall
in September 2012 (mm)
Previous wettest
for September
Years of
record
Mandurama Post Office 48.6 on the 29th 43.4 on the 5th in 1974 34
Hampton (Bindo) 35.0 on the 29th =35.0 on the 6th in 1983 22



Record lowest total September rainfall
Total rainfall
for September 2012 (mm)
Previous driest
for September
Years of
record
Average for
September
Narrandera Golf Club 4.3 5.9 in 2007 42 40.5



Record highest September daily minimum temperature
Highest daily minimum
temperature
in September 2012 (°C)
Previous warmest
for September
Years of
record
Average for
September
Tibooburra Post Office 24.9 on the 28th 22.9 on the 28th in 2008 92 10.3
Wagga Wagga AMO 19.1 on the 28th 16.5 on the 18th in 1975 71 5.1
Williamtown RAAF 18.2 on the 29th = 18.2 on the 29th in 2005 64 9.1
Hay (Miller Street) 22.4 on the 28th 18.5 on the 23rd in 2001 56 6.7
Hillston Airport 21.0 on the 28th 19.0 on the 19th in 1996 56 7.2
Taralga Post Office 14.3 on the 28th 13.0 on the 20th in 2006 52 3.1
Cobar MO 22.3 on the 28th 21.2 on the 27th in 1965 51 9.1
Menindee Post Office 24.3 on the 28th 20.2 on the 28th in 2011 50 8.0
Condobolin Ag Research Stn 19.8 on the 28th 19.0 on the 28th in 2008 48 5.8
Tumbarumba Post Office 17.0 on the 28th 15.0 on the 28th in 2008 47 3.0
Balranald (RSL) 20.6 on the 28th 19.9 on the 23rd in 2001 46 7.1
Grenfell (Manganese Rd) 19.2 on the 28th 17.7 on the 29th in 2004 45 6.1
Quandialla Post Office 19.3 on the 28th 16.4 on the 19th in 1996 43 5.6
Tocumwal Airport 18.4 on the 28th 16.7 on the 23rd in 2001 42 6.3
Griffith Airport AWS 22.4 on the 28th 20.0 on the 24th in 2001 40 5.8
Corowa Airport 19.0 on the 28th 17.2 on the 24th in 2001 39 5.7
Goulburn TAFE 16.4 on the 28th 14.7 on the 28th in 2008 39 4.5
Cooma Visitors Centre 13.6 on the 28th 12.5 on the 23rd in 1998 38 1.2
Thredbo Village 10.5 on the 28th = 10.5 on the 28th in 2008 32 -0.5
Oberon (Springbank) 13.5 on the 28th 12.0 on the 20th in 2006 29 2.3
Bombala AWS 14.2 on the 28th 14.0 on the 23rd in 1998 21 2.9



Record lowest September temperature
Lowest temperature
in September 2012 (°C)
Previous coolest
for September
Years of
record
Average for
September
Jerrys Plains Post Office -1.0 on the 3rd -0.6 on the 6th in 1981 56 7.0
Coonabarabran (Namoi Street) -5.0 on the 2nd -4.4 on the 8th in 1995 55 3.5
Barraba Post Office -5.0 on the 2nd = -5.0 on the 1st in 1970 47 4.2
Bathurst Agricultural Station -5.5 on the 1st -4.8 on the 22nd in 1994 47 3.4
Prospect Reservoir 1.7 on the 1st 2.6 on the 22nd in 1994 47 9.4
Tumbarumba Post Office -5.0 on the 1st = -5.0 on the 6th in 1995 47 3.0
Mungindi Post Office -0.6 on the 2nd 0.0 on the 13th in 1976 46 9.4
Grenfell (Manganese Rd) -2.5 on the 1st -2.2 on the 6th in 1966 45 6.1
Parramatta North (Masons Drive) 0.7 on the 1st 1.4 on the 7th in 1995 45 9.3
Brewarrina Hospital -0.1 on the 2nd 0.2 on the 7th in 1995 43 9.0
Camden Airport AWS -1.8 on the 1st -1.0 on the 14th in 1972 36 6.8
Oberon (Springbank) -5.8 on the 1st -4.5 on the 10th in 1982 29 2.3
Braidwood Racecourse AWS -6.7 on the 2nd -6.5 on the 11th in 2008 22 3.3
Batemans Bay (Catalina Country Club) -1.8 on the 1st -1.0 on the 4th in 2003 21 7.4
Bathurst Airport AWS -4.9 on the 2nd -3.8 on the 11th in 2002 21 3.8
Bombala AWS -5.7 on the 2nd -5.3 on the 22nd in 1994 21 2.9
Goulburn Airport AWS -7.4 on the 1st -6.8 on the 22nd in 1994 21 3.2
Mudgee Airport AWS -4.4 on the 2nd -3.7 on the 14th in 1992 21 4.4
Tamworth Airport AWS -4.0 on the 2nd -2.2 on the 22nd in 1994 21 5.9
Young Airport -5.5 on the 1st -4.7 on the 26th in 2006 21 3.2



Record lowest September mean daily minimum temperature
Mean daily minimum
temperature
for September 2012 (°C)
Previous coolest
for September
Years of
record
Average for
September
Wanaaring Post Office 6.6 6.8 in 1994 20 9.2

Lowest September mean daily minimum temperature for at least 20 years
Mean daily minimum
temperature
for September 2012 (°C)
Most recent September
at least this cool
Years since
cooler
Average for
September
Hillston Airport 5.4 4.8 in 1969 43 7.2
Condobolin Ag Research Stn 3.9 3.3 in 1989 23 5.8
Grenfell (Manganese Rd) 4.2 2.3 in 1989* 21 6.1
Riverview Observatory 8.6 8.4 in 1970* 20 9.4

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




Summary statistics for September 2012
Maximum temperatures
for September
(°C)
Minimum temperatures
for September
(°C)
Rainfall
for September
(millimetres)
Mean for
September
2012
Diff
from
average
Highest for
September
2012
Mean for
September
2012
Diff
from
average
Lowest for
September
2012
Total for
September
2012
Average
for
September
Rank of
September
2012
Fraction of
September
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 24.6   37.2 27th 8.0   1.9 10th 3.0
Tibooburra Airport 26.4   37.7 27th 10.2   4.9 8th 0.8
Tibooburra Post Office 26.4 +1.9 37.7 27th 10.4 +0.1 4.4 1st 2.4 12.4 average 19%
White Cliffs AWS 25.4   36.7 27th 9.5   4.5 30th 5.4
Wilcannia (Reid St) 25.0 +1.5 36.8 27th 6.8 -1.6 0.8 10th 3.0 15.9 low 19%
Wilcannia Aerodrome AWS 24.9   36.9 27th 6.3   0.0 10th 3.0
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 23.2 +2.1 36.0 27th 9.3 +0.4 4.3 30th 5.0 20.3 low 25%
Broken Hill Airport AWS 22.9 +1.4 36.2 27th 7.3 -1.2 2.0 10th 3.8 21.1 low 18%
Lake Victoria Storage 22.3 +1.9 37.0 27th 7.9 -0.2 2.0 10th 4.8 24.1 v low 20%
Menindee Post Office 24.3 +1.4 36.0 27th 8.6 +0.6 2.4 10th 1.0 18.4 low 5%
Pooncarie Mail Agency 24.3   37.6 27th 7.9   1.8 2nd 3.5 21.5 low 16%
Western (Upper Darling) (district 48)
Bourke Airport AWS 26.8   35.8 27th 6.6   -0.6 3rd 21.4
Brewarrina Hospital 26.6 +1.8 33.9 28th 7.4 -1.6 -0.1 2nd 18.4 25.1 average 73%
Cobar Airport AWS 24.2   34.9 27th 6.0   -2.1 2nd 18.2
Cobar MO 24.0 +2.1 34.9 27th 9.0 -0.1 2.2 14th 18.8 25.0 average 75%
Collarenebri (Albert St) 26.5 +1.6 33.2 28th 7.2 -1.6 -1.4 2nd 9.6 25.8 average 37%
Lightning Ridge Visitors Information Cen     33.0 23rd 9.1   2.0 3rd 37.8
Wanaaring Post Office 27.1 +1.7 37.6 27th 6.6 -2.6 1.4 4th 10.1 14.4 average 70%
Western (Southwest Plains) (district 49)
Balranald (RSL) 22.0 +1.1 35.3 27th 7.8 +0.7 1.2 2nd 13.2 29.2 low 45%
Ivanhoe Aerodrome AWS 23.6   35.2 27th 7.9   2.6 2nd 4.0
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 22.1 +1.6 29.0 20th 3.9 -1.9 -3.0 2nd 8.6 31.1 low 28%
Condobolin Airport AWS 22.6   30.3 27th 3.9   -3.0 2nd 25.6
Peak Hill Post Office 22.6 +2.1 29.5 23rd 6.9 -1.0 0.0 2nd 33.8 38.5 average 88%
West Wyalong Airport AWS 20.7   26.9 23rd 3.8   -2.0 2nd 14.6
Central Western Plains (North) (district 51)
Coonamble Airport AWS 24.2   32.0 28th 5.5   -1.7 2nd 31.4
Nyngan Airport 25.0 +2.4 32.0 27th 6.9 -0.9 0.4 3rd 0.8 27.6 v low 3%
Trangie Research Station AWS 23.6 +2.7 31.0 23rd 5.4 -1.0 -1.8 2nd 23.4 31.5 average 74%
Northwest Plains (West) (district 52)
Mungindi Post Office 27.6 +2.6 34.0 12th 8.6 -0.8 -0.6 2nd 11.2 27.2 average 41%
Walgett Airport AWS 26.0   35.3 28th 5.5   -2.6 2nd 14.0 24.4 average 57%
Northwest Plains (East) (district 53)
Moree Aero 24.6   31.0 28th 7.7   0.2 2nd 10.2
Northwest Slopes (North) (district 54)
Barraba Post Office 23.7 +2.3 29.1 28th 2.1 -2.1 -5.0 2nd 18.8 44.0 low 43%
Narrabri Airport AWS 24.1   28.7 23rd 6.2   -1.2 2nd 0.2
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 24.0   30.0 28th 4.3   -3.4 2nd 30.6
Gunnedah Resource Centre 23.6 +2.2 29.4 28th 8.9 +0.3 1.7 2nd 32.8 40.3 average 81%
Quirindi Post Office 23.9 +2.4 29.6 28th 4.6 -0.4 -1.6 2nd 19.8 46.5 low 43%
Tamworth Airport AWS 23.2 +1.6 29.1 28th 4.2 -1.7 -4.0 2nd 26.8 46.1 average 58%
Woolbrook (Danglemah Road) 18.8 +1.1 24.5 28th 0.3 -1.6 -6.2 2nd 18.4 56.0 low 33%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 19.0   25.0 28th 0.9   -6.0 3rd 28.6
Armidale Airport AWS 18.1   23.4 28th 3.5   -3.0 2nd 42.8
Glen Innes Ag Research Stn 18.8 +1.8 23.0 24th 3.1 -1.0 -4.0 2nd 35.8 54.9 average 65%
Glen Innes Airport AWS 19.2   23.2 24th 0.5   -8.0 2nd 43.0
Guyra Hospital 17.0 +1.7 22.0 28th 3.6 -0.3 -1.9 2nd 22.0 59.8 low 37%
Inverell (Raglan St) 22.2   26.6 28th 1.9   -5.0 2nd 46.6
Inverell Research Centre 21.6 +1.7 26.0 28th 6.4 -0.6 -1.2 2nd 35.0 48.1 average 73%
Tenterfield (Federation Park) 21.1 +1.6 26.7 24th 2.9 -1.8 -5.8 2nd 40.2 50.9 average 79%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 22.8 +1.3 28.8 24th 10.3 -0.1 4.8 14th 18.7 39.1 low 48%
Upper North Coast (district 58)
Ballina Airport AWS 23.8   30.2 24th 10.2   4.0 2nd 14.8 64.8 low 23%
Byron Bay (Cape Byron AWS) 21.8   25.7 27th 14.7   9.7 2nd 6.0
Casino Airport AWS 26.0   34.3 24th 9.6   3.1 2nd 7.8
Evans Head RAAF Bombing Range AWS 24.2   31.6 29th 12.1   7.6 3rd 5.4
Grafton Airport AWS 25.4   31.4 7th 8.3   0.1 2nd 50.4
Grafton Olympic Pool 25.8 +1.0 31.4 7th 10.3 -0.1 3.4 2nd 63.6 37.5 high 170%
Grafton Research Stn 25.6   30.9 7th 10.0   3.2 2nd 37.6 43.8 average 86%
Lismore (Richmond Hill) 25.3   33.5 24th 11.4   6.0 2nd 11.2
Lismore Airport AWS 25.8   34.3 24th 8.0   0.8 1st 8.6
Murwillumbah (Bray Park) 25.6 +0.5 33.7 24th 10.8 -0.7 4.0 2nd 5.6 41.2 low 14%
Yamba Pilot Station 22.9 +0.9 31.2 7th 12.7 -0.3 6.5 2nd 17.4 59.2 low 29%
Lower North Coast (district 59)
Coffs Harbour MO 23.1 +1.2 31.4 7th 10.8 -0.2 5.1 2nd 36.6 61.1 average 60%
Dorrigo (Old Coramba Rd) 20.0   26.7 24th 6.4   0.8 3rd 32.0
Kempsey (Wide Street) 24.6 +0.6 30.1 13th 8.8 -0.1 2.5 1st 20.2 56.0 average 36%
Kempsey Airport AWS 24.8   31.3 6th 6.4   -0.4 1st 12.2
South West Rocks (Smoky Cape Lighthouse) 23.1 +1.3 28.0 7th 13.9 +0.5 7.5 1st 7.8 56.0 v low 14%
Manning (district 60)
Forster - Tuncurry Marine Rescue 21.9   28.5 6th 11.0   6.0 4th 15.9 66.5 low 24%
Port Macquarie Airport AWS 22.9   31.4 6th 8.4   2.4 1st 10.4
Taree Airport AWS 23.5   30.6 28th 8.2   2.7 4th 12.6
Yarras (Mount Seaview) 24.7 +1.3 33.0 28th 7.8 -0.8 3.0 5th 56.2 70.4 average 80%
Hunter (district 61)
Cessnock Airport AWS 24.0 +1.6 31.4 28th 5.7 -1.3 -1.5 3rd 32.0 46.7 average 69%
Cooranbong (Lake Macquarie AWS) 23.2   31.4 28th 6.9   0.6 3rd 26.6
Gosford (Narara Research Station) AWS 22.9 +1.5 32.3 28th 7.2 -0.5 2.2 30th 40.0 68.5 average 58%
Jerrys Plains Post Office 25.5 +2.6 31.6 28th 6.3 -0.7 -1.0 3rd 11.8 41.8 low 28%
Maitland Visitors Centre 24.3   32.5 28th 7.4   1.3 3rd 21.8
Mangrove Mountain AWS 22.0   30.5 28th 8.1   0.6 1st 31.4
Merriwa (Roscommon) 22.7   29.7 28th 3.8   -3.7 2nd 35.0 39.1 average 90%
Murrurundi Gap AWS 19.4   24.8 28th 8.4   1.3 1st 13.8
Murrurundi Post Office 22.1 +1.5 27.5 28th 4.0 -1.0 -2.2 1st 25.2 58.1 low 43%
Nelson Bay (Nelson Head) 21.3 -0.1 27.5 13th 12.9 +1.3 8.2 1st 40.4 89.0 low 45%
Newcastle Nobbys Signal Station AWS 21.4 +1.2 31.3 28th 12.1 +0.7 7.7 1st 16.2 72.5 low 22%
Newcastle University 23.3   32.3 28th 9.6   4.4 1st 0
Norah Head AWS 21.1   29.2 28th 12.1   6.8 1st 31.0
Paterson (Tocal AWS) 24.5 +2.2 33.5 28th 8.0 -0.9 1.8 3rd 9.4 49.1 low 19%
Scone Airport AWS 23.9 +2.1 30.5 28th 5.5 -1.3 -1.4 2nd 20.4
Singleton STP 24.7   32.1 28th 4.7   -2.4 3rd 9.2
Williamtown RAAF 23.3 +2.0 33.8 28th 8.0 -1.1 3.3 4th 18.8 59.8 low 31%
Central Tablelands (North) (district 62)
Gulgong Post Office 21.8 +2.2 27.7 28th 4.9 -1.2 -1.6 3rd 51.8 46.8 average 111%
Mudgee Airport AWS 21.1 +1.8 28.0 28th 2.4 -2.0 -4.4 2nd 54.4
Nullo Mountain AWS 15.4 +1.3 22.5 28th 5.2 -0.3 -2.2 1st 50.2
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 18.4 +2.0 26.7 28th 1.3 -2.1 -5.5 1st 37.4 47.0 average 80%
Bathurst Airport AWS 18.8 +1.9 26.4 28th 1.6 -2.2 -4.9 2nd 35.8
Katoomba (Murri St) 16.9 +2.4 25.0 28th 6.3 +1.0 -1.2 1st 33.6 72.2 low 47%
Lithgow (Cooerwull) 16.7   25.0 28th 2.4   -6.0 1st 48.6 56.9 average 85%
Mount Boyce AWS 15.8 +1.3 24.1 28th 5.3 -0.1 -2.8 1st 37.8
Oberon (Springbank) 15.2 +1.6 23.3 28th 1.5 -0.8 -5.8 1st 50.1 67.4 average 74%
Orange Agricultural Institute 15.4 +1.4 21.7 28th 3.9 -0.3 -2.5 1st 58.2 79.7 average 73%
Orange Airport AWS 15.1   22.9 28th 2.0   -4.3 1st 61.6
Springwood (Valley Heights) 22.2   32.0 28th 9.1   3.2 1st 25.0 55.6 average 45%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 21.8 +1.4 27.4 28th 2.1 -1.4 -5.0 2nd 42.0 49.9 average 84%
Coonabarabran Airport AWS 20.5   26.6 28th 8.4   0.8 1st 53.2
Dunedoo Post Office 23.2 +2.5 29.3 28th 5.3 -0.5 -2.1 2nd 42.3 43.0 average 98%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 19.9   25.9 23rd 2.4   -4.5 1st 45.6
Dubbo Airport AWS 22.6   29.0 28th 4.4   -2.5 3rd 31.6
Forbes Airport AWS 21.1   28.5 27th 3.5   -2.6 2nd 4.8
Parkes Airport AWS 20.6   27.2 23rd 2.3   -3.0 14th 37.4 43.6 average 86%
Wellington (Agrowplow) 22.0 +1.3 28.9 28th 4.0 -1.4 -1.2 14th 34.0 44.4 average 77%
Metropolitan (East) (district 66)
Bankstown Airport AWS 23.4 +1.9 33.6 28th 7.9 -0.8 2.7 1st 20.4 44.6 average 46%
Canterbury Racecourse AWS 22.2   32.3 28th 8.2   2.7 1st 20.6
Holsworthy Aerodrome AWS 23.0   33.4 28th 7.8   2.2 1st 22.4
Holsworthy Control Range 22.8   33.3 28th 6.9   0.8 1st 22.0
Parramatta North (Masons Drive) 23.0 +1.4 33.2 28th 8.6 -0.7 0.7 1st 26.6 53.9 average 49%
Riverview Observatory 22.6 +1.9 32.1 28th 8.6 -0.8 3.3 1st 24.3 62.0 low 39%
Sydney (Observatory Hill) 22.5 +2.5 33.2 28th 12.0 +0.9 5.5 1st 23.8 68.6 low 35%
Sydney Airport AMO 22.6 +2.1 34.1 28th 11.9 +1.5 5.1 1st 20.0 60.3 low 33%
Sydney Harbour (Wedding Cake West) 20.1   32.5 28th 13.0   7.0 1st
Sydney Olympic Park AWS (Archery Centre) 23.1   33.3 28th 8.8   2.3 1st 26.0
Terrey Hills AWS 21.3   31.4 28th 10.6   4.2 1st 30.2
Metropolitan (West) (district 67)
Badgerys Creek AWS 23.7   33.4 28th 6.1   -0.2 1st 14.8
Horsley Park Equestrian Centre AWS 23.2   33.0 28th 7.9   2.4 1st 19.4
Liverpool (Michael Wenden Centre) 24.3   34.4 28th 6.7   1.9 3rd 20.5
Penrith Lakes AWS 24.2   34.1 28th 7.8   2.2 1st 24.4
Prospect Reservoir 23.6 +2.3 33.4 28th 8.7 -0.7 1.7 1st 21.0 46.9 low 45%
Richmond RAAF 24.1   33.7 28th 6.0   -1.4 1st 32.6
Illawarra (district 68)
Albion Park (Wollongong Airport) 21.9   33.7 28th 7.2   0.6 3rd 18.4
Bellambi AWS 20.5   32.2 28th 11.9   6.2 1st 19.0
Bowral (Parry Drive) 17.5 +1.3 26.0 28th 5.9 +0.7 -1.3 1st 27.4 56.1 low 49%
Camden Airport AWS 23.4 +1.5 33.9 28th 5.3 -1.5 -1.8 1st 21.8 39.6 average 55%
Campbelltown (Mount Annan) 23.2   32.9 28th 6.0   0.6 3rd 23.6
Jervis Bay (Point Perpendicular AWS) 19.0   25.6 28th 11.5   6.1 1st 22.8
Kiama (Bombo Headland) 20.5   31.6 28th 11.6   5.8 1st 19.8
Moss Vale AWS 17.3   26.5 28th 4.6   -1.8 10th 20.6
Nowra RAN Air Station AWS 21.5   31.1 28th 7.8   2.5 1st 18.6
Port Kembla NTC AWS 19.8   32.3 28th 12.9   6.9 1st
South Coast (district 69)
Batemans Bay (Catalina Country Club) 20.8 +0.5 27.8 28th 6.4 -1.0 -1.8 1st 12.8 59.4 v low 22%
Bega AWS 21.4 +1.5 29.4 27th 6.9 +1.0 -1.6 2nd 21.2
Braidwood Racecourse AWS 17.1 +0.7 23.3 27th 1.5 -1.8 -6.7 2nd 35.8 50.8 average 70%
Green Cape AWS 18.1   26.7 28th 10.7   7.1 1st 17.4
Merimbula Airport AWS 19.9   29.0 28th 6.8   0.2 2nd 20.0
Montague Island Lighthouse 18.2 +0.8 24.5 5th 11.9 +0.7 7.8 1st 30.8 55.9 average 55%
Moruya Airport AWS 20.4   29.2 28th 6.4   -1.8 1st 18.6
Moruya Heads Pilot Station 19.6 +0.9 28.0 28th 9.4 +0.9 3.8 2nd 15.6 60.0 low 26%
Narooma (Marine Rescue) 19.3 +1.1 28.2 28th 9.0 0.0 2.8 1st 25.7 59.6 average 43%
Ulladulla AWS 19.8 +0.7 28.5 28th 10.8 +0.1 4.5 1st 8.4
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 17.2 +1.5 25.4 27th 2.4 +0.2 -5.5 10th 28.6 44.1 average 65%
Bombala AWS 15.9 +0.7 24.0 27th 2.4 -0.5 -5.7 2nd 21.6
Canberra Airport 18.0   23.3 27th 1.6   -6.8 1st 41.4
Cooma Airport AWS 15.2 +0.1 22.0 27th -0.1 -1.2 -9.0 2nd 36.2 36.0 average 101%
Cooma Visitors Centre 16.7 +0.4 23.5 27th 0.5 -0.7 -6.5 2nd 32.4 34.8 average 93%
Goulburn Airport AWS 17.0 +0.6 23.9 27th 0.9 -2.3 -7.4 1st 49.4
Goulburn TAFE 17.0 +0.6 24.2 27th 4.1 -0.4 -3.2 1st 56.2 49.3 average 114%
Mount Ginini AWS 8.6   16.3 27th 0.0   -6.2 1st 83.4
Taralga Post Office 16.7 +1.9 24.5 28th 1.5 -1.6 -5.2 1st 73.3 61.9 average 118%
Tuggeranong (Isabella Plains) AWS 18.0   23.7 27th 2.6   -5.5 1st 40.4
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 6.8   13.9 27th -1.4   -8.2 1st 234.2
Thredbo AWS 3.9 +0.8 9.2 27th -2.3 +0.8 -8.6 2nd 117.0 150.0 average 78%
Thredbo Village 10.3 +0.6 17.5 27th -0.8 -0.3 -8.0 11th 216.1 216.4 average 100%
Southwest Slopes (South) (district 72)
Albury Airport AWS 18.3   25.7 27th 5.0   -1.3 1st 26.4
Cabramurra SMHEA AWS 8.9   14.8 27th 1.5   -5.3 1st 23.8
Hume Reservoir 18.3 +1.0 24.5 27th 6.5 -0.2 0.8 1st 18.8 61.6 v low 31%
Khancoban AWS 17.3   23.2 27th 3.6   -1.6 1st 77.0
Tumbarumba Post Office 16.2 +1.0 23.5 27th 2.1 -0.9 -5.0 1st 58.2 91.0 low 64%
Wagga Wagga AMO 19.0 +1.4 26.0 27th 4.0 -1.1 -3.0 1st 5.0 49.1 v low 10%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 18.4 +1.7 24.5 27th 4.8 -0.8 -0.5 1st 43.0 83.7 low 51%
Cootamundra Airport 18.5   25.0 23rd 1.4   -5.4 1st 30.2
Grenfell (Manganese Rd) 18.8 +0.4 25.1 27th 4.2 -1.9 -2.5 1st 37.0 50.3 average 74%
Gundagai (William St) 18.7   25.9 27th 3.6   -3.6 1st 24.0
Quandialla Post Office 20.4 +0.9 26.5 23rd 4.6 -1.0 -1.8 1st 30.9 40.4 average 76%
Temora Airport 19.2   25.4 23rd 2.2   -3.2 1st 15.4
Wyalong Post Office 20.9 +1.4 26.6 27th 5.5 -0.7 -0.7 2nd 14.8 36.6 low 40%
Young Airport 18.5 +0.7 24.6 23rd 0.8 -2.4 -5.5 1st 35.8
Riverina (East) (district 74)
Corowa Airport 18.7 +0.2 27.3 27th 4.8 -0.9 -1.0 1st 13.4 48.2 v low 28%
Deniliquin Airport AWS 20.7   32.9 27th 6.5   -1.6 1st 25.8
Narrandera Airport 20.9   30.3 27th 4.6   -3.1 1st 3.8 35.4 v low 11%
Narrandera Golf Club 20.6 +1.5 29.8 27th 5.1 -1.0 -1.6 1st 4.3 40.5 lowest 11%
Tocumwal Airport 19.5 +0.7 30.2 27th 5.8 -0.5 -1.2 2nd 25.0 39.1 low 64%
Yanco Agricultural Institute 20.7   29.8 27th 7.0   0.2 1st 4.0 34.8 low 11%
Riverina (West) (district 75)
Griffith Airport AWS 20.9 +1.1 29.8 27th 5.5 -0.3 -1.7 1st 4.8 32.4 v low 15%
Hay (Miller Street) 22.4 +1.7 33.7 27th 6.9 +0.2 0.1 2nd 6.6 31.4 low 21%
Hay Airport AWS 22.5   33.8 27th 5.7   -2.4 2nd 7.0
Hillston Airport 22.5 +1.7 32.0 27th 5.4 -1.8 -1.8 2nd 8.6 27.7 low 31%
Offshore Islands (district 200)
Lord Howe Island Aero 19.7 -0.3 22.6 29th 13.8 -0.8 8.0 5th 110.2 110.3 average 100%
Norfolk Island Aero 18.9 -0.1 20.4 8th 14.1 +0.4 12.1 6th 64.6 94.5 average 68%

Notes

A Monthly Climate Summary is prepared to list 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. 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 Tuesday 2 October 2012. 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 20 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.

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