New South Wales in October 2010: Wettest October in 34 years

  • La Niña event brings above average rainfall to NSW and Murray Darling Basin
  • Wettest October since 1976 for NSW
  • Wettest October since 1975 for the Murray Darling Basin

Rainfall

NSW experienced above average rainfall in October, under the influence of the moderate to strong La Niña event which is now well established in the Pacific Ocean. This is the 4th consecutive month with above average rainfall for NSW - a response consistent with patterns expected during a La Niña event. Long-range models surveyed by the Bureau of Meteorology suggest that this La Niña event will continue into at least early 2011. For routine updates and comprehensive discussion on any developments regarding El Niño and La Niña, please see the ENSO Wrap-Up.

The statewide average rainfall for October was 84.7 mm which is above the historical average of 44.4 mm. This is the wettest month for NSW since February 2010, when 117.9 mm was recorded. It is also the wettest October since 1976 (85.3 mm) and the 6th wettest October on record (current record is 99.8 mm in October 1950).

There were several significant rainfall events during the month. From the 3rd - 5th, a low pressure system over the northern NSW coast (near Yamba) brought very heavy rainfall to north-eastern districts, with minor to moderate flooding on the north and mid-north coasts. A low-pressure trough brought more rainfall to these districts from the 9th - 12th. During the 13th - 16th, significant rainfall was recorded across the state due to the interaction of a strong cold front with a cloud band. This event brought torrential rainfall and widespread flooding to the Riverina and South West Slopes districts. Some Riverina Shires were declared a Natural Disaster by the NSW State Government on the 16th. Widespread rainfall was again experienced across the state from the 24th to the 25th, associated with the passage of a cold front.

Similarly, the Murray Darling Basin (MDB) experienced above average rainfall during October, with a basin-wide average of 72.4 mm which is above the historical average of 40.1 mm. This is the 9th wettest October on record for the MDB (current record 93.2 mm in October 1949). It is also the 4th consecutive month with above-average rainfall for the MDB, and the wettest October since 1975, when 82.2 mm of rainfall was recorded.

Some sites had their highest total October rainfall on record.
Some sites had their lowest total October rainfall on record.
See a map of rainfall deciles.

Temperature

Daytime temperatures during October were below average across much of NSW, particularly in the northeast, where some locations recorded their lowest mean daytime temperature for October on record. The statewide average maximum temperature was 23.4°C which is 1.0°C below the historical average of 24.4°C, and the coolest October since 2003 for average maximum temperatures. The cooler than average daytime temperatures experienced across NSW in October is a pattern typically expected during a La Niña event.

Night-time temperatures were average in the west and above average in the east during October. The overall statewide average minimum temperature was 10.8°C which is 0.3°C above the historical average of 10.5°C.

The statewide average mean temperature was 17.1°C which is 0.4°C below the historical average of 17.5°C.

Some sites had their coldest October day (lowest maximum temperature) on record.
Some sites had their lowest October mean daily maximum temperature on record.
See a map of maximum temperature anomalies.
Some sites had their lowest October temperature on record.
Some sites had their warmest October night (highest daily minimum temperature) on record.
Some sites had their highest October mean daily minimum temperature on record.
See a map of minimum temperature anomalies.

Other phenomena

On the 16th, snow was reported in the Central Tablelands (Oberon, Katoomba,Orange and Bathurst) and Southern Tablelands (Charlotte Pass, Goulburn, Taralga and Thredbo), associated with the passage of a strong cold front.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in October 2010
Hottest day 35.7 °C at Tibooburra Airport on the 29th
35.7 °C at Tibooburra Post Office on the 29th
Warmest days on average 26.6 °C at Lightning Ridge Visitors Information Cen
Coolest days on average 8.6 °C at Thredbo AWS
Coldest day -1.8 °C at Thredbo AWS on the 16th
Coldest night -8.1 °C at Thredbo AWS on the 16th
Coolest nights on average 0.7 °C at Thredbo AWS
Warmest nights on average 15.7 °C at Norfolk Island Aero
15.5 °C at Murwillumbah (Bray Park)
Warmest night 20.3 °C at Tibooburra Post Office on the 13th
20.3 °C at Narrabri Airport AWS on the 31st
Wettest overall 631.0 mm at Numinbah (Couchy Creek)
Wettest day 223.4 mm at Evans Head RAAF Bombing Range AWS on the 4th
Highest wind gust 117 km/h at Murrurundi Gap AWS on the 15th

Record highest total October rainfall
Total rainfall
for October 2010 (mm)
Previous highest
for October
Years of
record
Average for
October
Hatfield (Benilkie) 101.0 92.2 in 1952 134 27.3
Hillston Airport 167.2 127.9 in 1976 125 36.2
Ivanhoe Post Office 180.6 131.7 in 1920 125 28.7
Wanaaring Post Office 126.4 124.5 in 1892 125 21.2
Jerilderie Treatment Works 146.0 126.4 in 1973 122 38.8
Lockhart Bowling Club 235.2 165.8 in 1974 111 49.4
Henty Post Office 212.7 191.7 in 1955 109 58.6
Naradhan (Uralba) 133.6 127.6 in 1973 99 43.4
Culcairn Bowling Club 205.2 151.2 in 1955 98 59.1
Carabost 227.4 180.6 in 1992 89 72.9
Wentworth (Wamberra Station) 101.0 93.5 in 1894 84 23.4
Wanaaring (Owen Downs) 138.4 134.0 in 1985 55 24.8
Grafton Research Stn 239.8 167.6 in 1939 54 62.9
Narrandera Airport 136.4 133.1 in 1974 42 43.8
Narrandera Golf Club 157.1 137.4 in 1974 41 48.2
Thredbo AWS 332.4 316.0 in 1974 39 123.2
Ivanhoe (Baden Park) 101.5 79.9 in 1913 37 22.8




Record lowest October daily maximum temperature
Lowest daily maximum
temperature
in October 2010 (°C)
Previous lowest
for October
Years of
record
Average for
October
Coonabarabran (Namoi Street) 10.9 on the 16th 11.2 on the 3rd in 1966 54 24.3
Tenterfield (Federation Park) 11.3 on the 16th 12.1 on the 6th in 1983 46 22.4
Quirindi Post Office 12.2 on the 16th 12.8 on the 4th in 1966 45 25.2
Orange Airport Comparison 5.5 on the 16th 6.4 on the 9th in 1976 41 17.3
Woolbrook (Danglemah Road) 8.5 on the 16th 9.0 on the 6th in 1983 39 21.0
Glen Innes Ag Research Stn 7.5 on the 16th 9.5 on the 18th in 1974 37 20.1
Griffith Airport AWS 13.7 on the 16th 13.8 on the 3rd in 1986 36 23.8
Gulgong Post Office 11.0 on the 16th 12.0 on the 9th in 1976 36 23.5
Guyra Hospital 6.8 on the 16th 7.2 on the 6th in 1983 27 18.4



Record lowest October mean daily maximum temperature
Mean daily maximum
temperature
for October 2010 (°C)
Previous lowest
for October
Years of
record
Average for
October
Casino Airport 24.2 25.1 in 1914 91 27.9
Murwillumbah (Bray Park) 23.6 24.5 in 1984 35 26.4



Record highest October daily minimum temperature
Highest daily minimum
temperature
in October 2010 (°C)
Previous highest
for October
Years of
record
Average for
October
Cooma Visitors Centre 14.5 on the 31st = 14.5 on the 18th in 1998 37 3.7



Record lowest October temperature
Lowest temperature
in October 2010 (°C)
Previous lowest
for October
Years of
record
Average for
October
Collarenebri (Albert St) 3.4 on the 17th = 3.4 on the 22nd in 1986 43 13.1
Tabulam (Muirne) 3.5 on the 17th 5.6 on the 23rd in 2008 41 12.5
Alstonville Tropical Fruit Research Stat 7.0 on the 17th 7.7 on the 5th in 1981 39 14.8



Record highest October mean daily minimum temperature
Mean daily minimum
temperature
for October 2010 (°C)
Previous highest
for October
Years of
record
Average for
October
Woolbrook (Danglemah Road) 8.0 7.7 in 1973 38 5.1



Summary statistics for October 2010
Maximum temperatures
for October
(°C)
Minimum temperatures
for October
(°C)
Rainfall
for October
(millimetres)
Mean for
October
2010
Diff
from
average
Highest for
October
2010
Mean for
October
2010
Diff
from
average
Lowest for
October
2010
Total for
October
2010
Average
for
October
Rank of
October
2010
Fraction of
October
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 25.0   34.6 29th 12.4   5.8 16th 60.8
Tibooburra Airport 26.0   35.7 29th 14.0   7.4 16th 67.4
Tibooburra Post Office 26.3 -2.2 35.7 29th 14.2 +0.1 7.9 16th 67.6 18.5 v high 365%
White Cliffs AWS 25.3   34.8 29th 13.1   6.9 16th 79.2
White Cliffs Post Office 25.6 -2.4 34.5 29th 12.3 -0.6 6.6 16th 81.0 23.2 v high 349%
Wilcannia (Reid St) 25.5 -1.9 34.1 29th 11.6 -0.6 5.7 1st 99.2 25.4 v high 391%
Wilcannia Aerodrome AWS 25.6   34.5 29th 11.2   4.1 1st 123.0
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 23.5 -1.5 32.6 29th 11.4 -0.3 5.2 8th 62.6 24.5 v high 256%
Broken Hill Airport AWS 23.3 -1.7 32.0 29th 11.1 -0.4 5.0 8th 55.6 26.3 high 211%
Lake Victoria Storage 23.5 -0.2 31.1 22nd 10.3 -0.3 4.5 8th 68.8 27.6 v high 249%
Menindee Post Office 25.3 -1.2 34.8 29th 12.0 +0.7 7.2 10th 56.8 22.9 v high 248%
Pooncarie Mail Agency 24.8   32.8 22nd 10.8   5.3 7th 92.8 26.5 v high 350%
Western (Upper Darling) (district 48)
Bourke Airport AWS 26.0   34.4 29th 13.3   6.7 17th 96.4
Brewarrina Hospital 25.8 -3.1 35.1 29th 13.4 +0.5 6.8 17th 66.8 30.0 high 223%
Cobar Airport AWS 24.0   31.9 29th 11.5   3.4 1st 87.2
Cobar MO 24.1 -1.9 32.2 29th 11.9 -0.7 4.8 17th 103.4 36.6 v high 283%
Collarenebri (Albert St) 26.9 -2.0 33.0 29th 13.1 0.0 3.4 17th 60.4 38.6 high 156%
Lightning Ridge Visitors Information Cen 26.6   34.0 29th 12.8   5.0 17th 73.7
Wanaaring Post Office 26.1   35.2 29th 13.4   7.3 1st 126.4 21.2 highest 596%
Western (Southwest Plains) (district 49)
Balranald (RSL) 23.2 -1.3 31.2 29th 9.7 -0.1 4.2 7th 69.4 31.0 high 224%
Ivanhoe Aerodrome AWS 24.5   33.3 29th 11.1   5.4 8th 172.2
Ivanhoe Post Office 25.2 -1.2 33.5 29th 10.4 -0.1 3.0 2nd 180.6 28.7 highest 629%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 23.4 -1.5 28.5 22nd 9.2 -0.3 1.5 1st 69.3 49.2 high 141%
Condobolin Airport AWS 23.6   29.8 29th 9.7   2.2 1st 89.4
Peak Hill Post Office 23.8 -0.8 29.0 29th 12.0 +0.5 3.8 17th 66.6 48.7 high 137%
West Wyalong Airport AWS 22.0   27.8 29th 9.4   3.3 1st 152.6
Central Western Plains (North) (district 51)
Coonamble Airport AWS 24.9   30.4 30th 11.3   2.1 17th 58.4
Nyngan Airport 25.2 -1.3 31.5 29th 12.2 +0.8 5.6 1st 75.6 35.0 high 216%
Trangie Research Station AWS 24.1 -1.1 29.6 29th 11.3 +1.1 2.4 1st 70.6 45.7 high 154%
Northwest Plains (West) (district 52)
Mungindi Post Office 27.2 -1.8 32.8 28th     10.5 1st 76.2 38.3 high 199%
Walgett Airport AWS 25.9   32.6 29th 11.1   2.3 1st 84.2
Northwest Plains (East) (district 53)
Moree Aero 24.7   30.8 28th 12.6   2.6 17th 74.4
Northwest Slopes (North) (district 54)
Barraba Post Office 23.4 -1.6 27.4 30th     0.0 31st 103.0 63.3 high 163%
Narrabri Airport AWS 25.1   30.3 28th 12.9   4.4 18th 30.8
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 24.3   29.8 30th 11.0   0.1 17th 71.2
Gunnedah Pool 24.5 -2.2 29.5 30th 12.9 +2.2 -1.0 17th 73.6 55.4 high 133%
Gunnedah Resource Centre 23.6 -1.5 28.7 30th 13.0 +0.9 4.2 17th 75.4 59.6 average 127%
Quirindi Post Office 23.7 -1.5 29.2 30th 9.9 +1.2 -0.6 17th 76.0 60.7 high 125%
Tamworth Airport AWS 23.5   28.8 30th 10.7   1.0 17th 72.4
Woolbrook (Danglemah Road) 19.2 -1.8 25.0 30th 8.0 +2.9 -2.0 17th 86.0 75.4 average 114%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 18.7   23.9 29th 7.7   -0.6 17th 66.8
Armidale Airport AWS 17.8   22.7 30th 8.1   -1.1 17th 65.8
Glen Innes Ag Research Stn 18.0 -2.1 23.0 6th 8.0 +0.8 -1.0 17th 78.6 77.3 average 102%
Glen Innes Airport AWS 18.1   22.8 30th 7.6   -1.3 17th 82.0
Glen Innes Post Office 19.1 -1.9 24.4 30th 9.0 +1.8 0.6 17th 74.2 78.8 average 94%
Guyra Hospital 16.6 -1.8 22.0 30th 7.0 +0.7 -1.7 17th 91.4 78.5 average 116%
Inverell (Raglan St) 22.1   26.6 29th 9.3   -1.1 17th 106.0
Tenterfield (Federation Park) 19.6 -2.8 24.5 31st 9.3 +1.3 0.9 18th 75.5 76.9 average 98%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 20.6 -3.3 26.2 7th 11.4 -1.1 3.5 17th 252.6 87.9 v high 287%
Upper North Coast (district 58)
Alstonville Tropical Fruit Research Stat 21.8 -2.4 26.5 7th 14.7 -0.1 7.0 17th 413.7 109.2 v high 379%
Ballina Airport AWS 23.0   26.5 24th 14.9   6.8 17th 317.2
Byron Bay (Cape Byron AWS) 22.9   26.7 27th 16.6   9.5 17th 368.8
Casino Airport 24.2 -3.7 30.2 7th 14.4 +1.2 5.1 17th 236.6 70.4 v high 336%
Casino Airport AWS 23.6   29.7 7th 14.6   7.1 17th 244.4
Evans Head RAAF Bombing Range AWS 23.0   28.1 7th 15.1   7.3 17th 394.0
Grafton Airport AWS 23.7   29.1 7th 14.3   3.2 17th 336.6
Grafton Olympic Pool 24.2 -2.5 30.0 7th 15.1 +1.4 5.0 17th 265.8 80.1 v high 332%
Grafton Research Stn 23.8   29.5 7th 14.9   5.8 17th 239.8 62.9 highest 381%
Lismore (Richmond Hill) 23.4   29.7 7th 14.4   7.1 17th 290.2
Lismore Airport AWS 23.7   29.7 7th 13.9   5.3 17th 242.0
Murwillumbah (Bray Park) 23.6 -2.8 28.4 7th 15.5 +1.4 8.3 17th 446.2 111.0 v high 402%
Yamba Pilot Station 22.6 -0.8 25.1 7th 16.0 +0.6 8.2 17th 185.0 78.8 v high 235%
Lower North Coast (district 59)
Coffs Harbour MO 22.0 -1.6 26.6 7th 14.8 +1.0 4.3 17th 438.6 98.4 v high 446%
Dorrigo (Old Coramba Rd) 17.8   23.5 7th 10.2   -0.7 17th 486.5
Kempsey (Wide Street) 23.5 -2.1 29.0 27th 14.0 +2.2 3.5 17th 176.7 79.6 v high 222%
Kempsey Airport AWS 23.4   28.6 27th 12.8   1.2 17th 180.6
South West Rocks (Smoky Cape Lighthouse) 22.7 -0.5 26.0 7th 14.8 -0.3 9.0 17th 203.0 94.0 v high 216%
Manning (district 60)
Forster - Tuncurry Marine Rescue 21.8   26.2 7th 14.1   8.5 18th 76.4 78.8 average 97%
Port Macquarie Airport AWS 22.6   27.0 31st 13.3   2.0 17th 126.4
Taree Airport AWS 23.0   29.0 30th 12.8   3.6 17th 70.0
Yarras (Mount Seaview) 22.8 -2.7 28.9 30th 13.5 +2.2 6.4 17th 467.6 125.8 v high 372%
Hunter (district 61)
Cessnock Airport AWS 23.2 -2.0 30.0 31st 10.9 +1.2 3.8 1st 58.6 54.3 average 108%
Cooranbong (Lake Macquarie AWS) 22.6   31.1 31st 11.4   3.3 1st 80.4
Gosford (Narara Research Station) AWS 22.4 -1.3 29.7 23rd 11.5 +0.8 3.1 17th 86.2 84.9 average 102%
Jerrys Plains Post Office 24.9 -1.4 32.0 30th 11.9 +1.6 2.3 17th 67.8 52.1 high 130%
Maitland Visitors Centre 23.8   31.1 31st 11.9   4.0 1st 70.1
Mangrove Mountain AWS 21.1   28.5 30th 11.5   5.2 1st 58.6
Merriwa (Roscommon) 22.1   28.1 30th 9.4   2.5 1st 74.6 54.7 high 136%
Murrurundi Gap AWS 18.8   24.1 30th 9.9   2.0 17th 28.6
Murrurundi Post Office 21.8 -2.4 27.5 30th 9.6 +1.4 2.3 18th 94.8 73.4 average 129%
Nelson Bay (Nelson Head) 22.2 -1.0 25.0 22nd 15.3 +1.7 10.5 17th 86.3 79.3 average 109%
Newcastle Nobbys Signal Station AWS 21.1 -1.0 27.9 23rd 15.1 +1.1 8.8 17th 80.2 73.3 average 109%
Norah Head AWS 21.6   27.6 14th 15.0   8.9 17th 79.4
Paterson (Tocal AWS) 23.9 -1.1 31.0 31st 12.2 +0.8 4.8 1st 106.0 67.2 high 158%
Peats Ridge (Waratah Road) 20.7 -2.3 28.2 30th 11.9 +1.0 5.2 1st 102.8 93.6 high 110%
Scone Airport AWS 23.3   29.3 30th 10.3   2.4 1st 72.2
Singleton STP 24.4   31.0 23rd 11.4   3.6 1st 60.6
Williamtown RAAF 23.5 -0.1 31.1 23rd 12.1 +0.1 3.5 1st 73.8 74.5 average 99%
Central Tablelands (North) (district 62)
Gulgong Post Office 21.8 -1.7 27.0 23rd 10.1 +0.8 2.5 16th 69.3 56.5 average 123%
Mudgee Airport AWS 21.1   27.4 30th 9.5   1.7 18th 72.4
Nullo Mountain AWS 15.1   20.7 30th 7.6   -1.0 16th 126.4
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 19.6 -0.3 26.1 30th 7.0 +0.8 0.3 8th 61.0 60.6 average 101%
Bathurst Airport AWS 19.1   24.9 30th 7.5   0.4 17th 57.6
Katoomba (Murri St) 16.1 -1.5 23.9 30th 8.1 +0.4 -0.9 16th 167.8 92.3 high 182%
Lithgow (Cooerwull) 16.8   21.8 23rd 7.6   0.5 1st 70.8 63.5 average 111%
Mount Boyce AWS 15.9   23.5 30th 7.6   -0.9 16th 94.2
Oberon (Springbank) 15.4 -1.6 21.7 30th 6.8 +2.1 0.2 8th 74.1 79.2 average 94%
Orange Agricultural Institute 17.5 0.0 22.6 30th 7.3 +0.7 -0.5 16th 119.4 86.1 high 139%
Orange Airport AWS 16.9   23.2 30th 6.8   -0.5 17th 160.0
Orange Airport Comparison 17.4 +0.1 28.8 29th 7.0 +1.2 -0.8 17th 145.3 78.2 high 186%
Springwood (Valley Heights) 21.1   28.8 23rd 11.6   5.4 17th 138.0 74.5 high 185%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 22.1 -2.2 27.0 29th 8.9 +1.7 1.8 10th 102.6 59.8 high 172%
Coonabarabran Airport AWS 21.0   25.5 30th 10.6   2.7 16th 86.6
Dunedoo Post Office 23.0 -1.2 29.0 30th 11.0 +1.9 1.7 17th 105.4 52.6 v high 200%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 21.8   26.6 30th 8.2   1.3 8th 73.2
Cowra Airport Comparison 22.3 -0.4 27.2 30th 8.5 +1.5 2.0 8th 71.8 56.3 average 128%
Dubbo Airport AWS 23.1   29.4 30th 10.7   1.8 17th 54.0
Forbes Airport AWS 22.9   28.4 29th 9.1   2.6 8th 89.6
Parkes (Macarthur Street) 23.2 -0.4 27.7 27th 10.8 +0.4 3.5 1st 70.2 52.4 high 134%
Parkes Airport AWS 22.5   26.6 30th 9.4   1.0 1st 78.4 54.2 high 145%
Wellington (Agrowplow) 23.0 -1.8 29.6 30th 10.5 +1.9 1.9 17th 82.1 56.6 high 145%
Metropolitan (East) (district 66)
Bankstown Airport AWS 22.7 -1.0 30.0 31st 12.6 +0.8 6.1 1st 69.4 62.1 high 112%
Canterbury Racecourse AWS 22.0   28.3 23rd 12.3   5.8 1st 87.2
Holsworthy Control Range 22.8   29.5 23rd 11.6   5.0 1st 84.0
Parramatta North (Masons Drive) 22.7 -1.2 30.0 31st 12.2 +0.3 5.5 1st 88.2 70.7 high 125%
Sydney (Observatory Hill) 21.9 -0.2 28.9 14th 14.8 +1.3 9.7 1st 83.2 77.6 average 107%
Sydney Airport AMO 22.6 +0.1 30.6 23rd 14.7 +1.6 9.7 1st 87.0 71.6 high 122%
Sydney Harbour (Wedding Cake West) 19.9   25.3 14th 15.4   11.4 17th
Sydney Olympic Park (Sydney Olympic Pk A 23.2   30.9 30th 13.9   8.3 1st 85.2
Terrey Hills AWS 21.0   28.4 23rd 13.0   6.0 17th 63.4
Metropolitan (West) (district 67)
Badgerys Creek AWS 22.6   30.0 31st 11.4   5.4 1st 93.2
Horsley Park Equestrian Centre AWS 22.8   30.7 31st 11.9   4.0 17th 62.0
Liverpool (Michael Wenden Centre) 23.4   30.9 31st 11.8   5.0 1st 50.2
Penrith Lakes AWS 24.0   31.8 30th 11.9   5.6 17th 61.0
Prospect Reservoir 23.4 -0.3 31.6 31st 12.4 +0.3 5.0 17th 90.6 59.4 high 153%
Richmond RAAF 23.0   30.5 31st 11.6   3.7 17th 61.0
Illawarra (district 68)
Albion Park (Wollongong Airport) 21.9   31.0 23rd 12.1   5.0 1st 89.0
Bellambi AWS 20.3   27.9 23rd 14.1   9.0 1st 94.8
Bowral (Parry Drive) 17.8 -1.3 24.9 30th 9.0 +1.4 2.6 16th 73.2 73.7 average 99%
Camden Airport AWS 23.3 -0.8 30.6 31st 11.2 +1.3 4.7 1st 93.0 67.8 high 137%
Campbelltown (Mount Annan) 23.1   29.6 31st 10.9   4.2 1st 74.2
Jervis Bay (Point Perpendicular AWS) 20.0   26.4 23rd 13.8   7.7 16th 86.6
Kiama (Bombo Headland) 20.4   24.3 26th 13.9   8.3 16th 132.2
Moss Vale AWS 17.7   25.3 31st 8.7   2.9 16th 55.6
Nowra RAN Air Station AWS 21.9   30.1 23rd 11.4   5.9 1st 73.0
South Coast (district 69)
Batemans Bay (Catalina Country Club) 21.2   27.7 23rd 10.8   5.1 1st 57.6 89.6 average 64%
Bega AWS 21.2   28.4 31st 9.2   4.2 2nd 58.6
Braidwood Racecourse AWS 18.0   23.5 22nd 6.6   -2.0 1st 51.0 57.3 average 89%
Green Cape AWS 18.4   20.8 26th 12.2   6.6 16th 78.0
Merimbula Airport AWS 19.8   23.3 31st 9.7   5.0 18th 79.0
Montague Island Lighthouse 18.5 -0.2 22.5 31st 13.4 +0.8 7.9 16th 47.6 64.1 average 74%
Moruya Airport AWS 20.5   27.6 31st 10.6   3.4 17th 64.4
Moruya Heads Pilot Station 19.3 -0.8 26.0 31st 11.9 +1.1 7.6 16th 69.8 77.8 average 90%
Narooma Vmr 19.1 -0.3 26.3 31st 12.2 +1.0 7.7 17th 53.8 71.3 average 75%
Nerriga Composite 18.9 -0.3 27.0 30th 7.0 +0.8 -0.5 1st 86.5 62.9 high 138%
Ulladulla AWS 19.5   27.5 23rd 13.0   7.3 16th 69.4
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 19.5 +0.8 25.5 22nd 5.2 +0.5 -1.0 8th 60.8 55.3 average 110%
Bombala AWS 17.4   23.1 30th 5.3   -1.4 1st 60.4
Canberra Airport 19.5   23.8 31st 7.0   -0.4 1st 88.6
Canberra 19.6 +0.2 24.2 22nd 8.0 +1.9 0.9 1st 87.0 62.4 high 139%
Cooma Airport AWS 17.9   22.8 30th 4.6   -5.6 1st 60.4 44.5 high 136%
Cooma Visitors Centre 19.0 -0.4 24.0 22nd 4.8 +1.1 -3.4 1st 48.9 45.8 average 107%
Goulburn Airport AWS 18.9   27.8 30th 6.8   -0.8 8th 19.4
Goulburn TAFE 19.2 -0.5 28.1 30th 8.2 +1.3 1.3 17th 27.4 54.8 low 50%
Mount Ginini AWS 10.9   16.0 6th 2.8   -5.5 16th 275.2
Taralga Post Office 18.2 -0.1 26.9 30th 6.5 +1.2 -1.0 19th 55.5 70.9 average 78%
Tidbinbilla Nature Reserve 18.2 -0.8 23.5 22nd 7.4 +1.3 -2.0 1st 201.5 87.7 v high 230%
Tuggeranong (Isabella Plains) AWS 19.7   24.7 22nd 8.0   0.7 1st 151.6
Yass (Linton Hostel) 21.4 +0.9 26.0 6th 8.0 +1.7 1.0 1st 68.1 64.4 average 106%
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 10.1 +1.0 14.3 29th 1.2 +1.8 -6.5 1st 280.6 218.2 average 129%
Perisher Valley AWS 10.9   16.6 29th 1.6   -6.2 1st 247.4
Thredbo AWS 8.6 +1.8 13.2 29th 0.7 +1.3 -8.1 16th 332.4 123.2 highest 270%
Thredbo Village 14.4 +1.3 19.0 29th 2.4 +0.7 -5.8 1st 324.6 185.7 v high 175%
Southwest Slopes (South) (district 72)
Albury Airport AWS 20.8   25.9 5th 9.2   4.1 1st 154.8
Cabramurra SMHEA AWS 12.3   17.4 5th 4.5   -4.2 16th 249.6
Hume Reservoir 21.3 +0.4 26.3 5th 10.5 +1.4 3.7 1st 202.6 69.9 v high 290%
Khancoban AWS 20.3   24.7 22nd 7.6   0.5 1st 214.8
Tumbarumba Post Office 19.1 -0.2 23.5 5th 6.2 +1.0 -0.3 1st 235.4 97.3 v high 242%
Wagga Wagga AMO 21.1 -0.3 26.4 22nd 9.3 +1.6 2.4 1st 166.2 59.3 v high 280%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 21.0 +0.8 25.8 22nd 10.0 +1.7 3.3 16th 129.8 86.6 high 150%
Cootamundra Airport 20.8   25.5 22nd 7.8   0.5 1st 77.2
Gundagai (William St) 21.4   27.0 6th 9.1   1.7 1st 161.8
Quandialla Post Office 22.7 -1.0 28.6 29th 10.2 +1.5 3.4 8th 72.2 51.1 high 141%
Temora Airport 21.3   26.4 22nd 8.4   1.2 19th 87.4
Wyalong Post Office 22.7 -0.7 28.3 22nd 10.5 +1.1 4.6 16th 112.8 46.4 v high 243%
Young Airport 20.7   25.2 22nd 7.1   -0.1 8th 90.8
Riverina (East) (district 74)
Corowa Airport 21.1 -1.1 27.0 22nd 8.8 +0.7 2.5 1st 152.5 52.3 v high 292%
Deniliquin Airport AWS 22.0   28.9 29th 8.7   2.8 1st 105.6
Narrandera Golf Club 22.3 -0.9 28.3 22nd 9.4 +0.4 3.3 9th 157.1 48.2 highest 326%
Tocumwal Airport 21.5 -0.9 27.7 22nd 9.0 +0.2 1.4 1st 151.6 43.8 v high 346%
Yanco Agricultural Institute 22.4   28.5 22nd 10.2   3.9 8th 127.6
Riverina (West) (district 75)
Griffith Airport AWS 22.5 -1.3 29.4 22nd 9.3 +0.4 3.5 8th 102.6 40.5 v high 253%
Hay (Miller Street) 22.9 -1.6 30.0 22nd 9.7 +0.2 3.6 16th 102.3 35.4 v high 289%
Hay Airport AWS 23.2   30.4 29th 8.6   2.6 2nd 98.2
Hillston Airport 23.8 -0.8 31.5 29th 9.8 -0.5 3.0 8th 167.2 36.2 highest 462%
Lake Cargelligo Airport 23.0 -2.6 30.0 29th 10.7 +0.2 4.5 16th 115.0 39.7 v high 290%

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 11 am on Monday 1 November 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.

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