New South Wales in June 2010: Late cold snap brings record cold nights

  • Month ends with record cold nights
  • Below average rainfall for NSW and the Murray Darling Basin
  • Slightly above average temperatures

Rainfall

Much of the state recorded below average rainfall during June. The statewide average rainfall for June was 28.2 mm which is below the historical average1of 38.8 mm. This is the lowest June rainfall for NSW since 2002 (21.7 mm).

Coastal areas recorded average to above average rainfall, particularly the central and northern regions. This was primarily caused by an East Coast Low during the beginning of the month (4th/5th). West of the Divide, average to below average rainfall was recorded, with very much below average rainfall recorded in a small region in the far west. Dominant high pressure systems over the state during the month contributed to the below average rainfall experienced during June.

The Murray Darling Basin (MDB) recorded a basin-wide average of 22.1 mm which is below the historical average of 33.6 mm. This is the lowest June rainfall for the MDB since 1992 (19.2 mm)

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

Temperature

NSW experienced close to average temperatures during June, with a statewide average mean temperature of 10.6°C which is 0.3°C above the historical average of 10.3°C. However, under the influence of a dominant high pressure ridge, cold night-time conditions were experienced across much of NSW during the last few days of June; particularly in the Sydney, Central Coast and Hunter regions, where some locations recorded their coldest June night on record (see table).

Maximum temperatures were close to average, with much of the state recording maximum temperatures within one degree of the historical average. The statewide average maximum temperature for June was 16.4°C which is 0.3°C above the historical average of 16.1°C.

Despite the cold conditions at the end of the month, above average mininmums were recorded throughout much of NSW, particularly west of the Divide, where minimum temperatures were 1 – 2°C above average. The statewide average minimum temperature for June was 4.8°C which is 0.2°C above the historical average of 4.6°C.

See a map of maximum temperature anomalies.
Some sites had their lowest June temperature on record.
Some sites had their lowest June mean daily minimum temperature on record.
See a map of minimum temperature anomalies.

Other phenomena

A low pressure system developed off the northern NSW coast on the 3rd. Moist easterly flow was directed onto the coast and adjacent Ranges, bringing widespread rain and thunderstorms to this region. 24 hour rainfall totals to 9am on the 3rd included 174.2 at Alstonville (Tropical Fruit Research Station) and 170.8 mm at Ballina Airport.

A waterspout formed within a supercell thunderstorm and moved inland over Lennox Head on the morning of the 3rd. The thunderstorm and tornado embedded within it (rated between F1 and F2 on the Fujita scale) caused major damage due to the extremely strong winds, estimated at more than 150km/hr. The tornado moved north from Lennox Head to Byron Bay before moving offshore. 12 houses were destroyed and another 30 were damaged, and Lennox Head was declared a disaster zone the following day.

Further information

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Extremes in June 2010
Hottest day 25.4 °C at Wanaaring Post Office on the 25th
Warmest days on average 20.9 °C at Grafton Olympic Pool
Coolest days on average 1.0 °C at Thredbo AWS
Coldest day -3.9 °C at Thredbo AWS on the 9th
Coldest night -13.5 °C at Charlotte Pass (Kosciusko Chalet) on the 14th
-13.5 °C at Charlotte Pass (Kosciusko Chalet) on the 28th
Coolest nights on average -4.5 °C at Thredbo AWS
Warmest nights on average 15.0 °C at Norfolk Island Aero
11.6 °C at Nelson Bay (Nelson Head)
Warmest night 19.9 °C at Norfolk Island Aero on the 1st
Wettest overall 311.3 mm at Alstonville Tropical Fruit Research Stat
Wettest day 174.2 mm at Alstonville Tropical Fruit Research Stat on the 3rd
Highest wind gust 113 km/h at Thredbo AWS on the 17th


Record lowest June temperature
Lowest temperature
in June 2010 (°C)
Previous lowest
for June
Years of
record
Average for
June
Williamtown RAAF -1.8 on the 30th 0.0 on the 12th in 1952 60 7.9
Coonamble Comparison -3.9 on the 30th = -3.9 on the 26th in 1971 46 5.0
Prospect Reservoir -0.8 on the 30th 0.1 on the 4th in 2000 45 7.4
Gosford (Narara Research Station) AWS -1.5 on the 30th -1.1 on the 29th in 1969 28 6.5
Riverview Observatory 1.2 on the 30th 1.7 on the 24th in 1962 27 7.7



Record lowest June mean daily minimum temperature
Mean daily minimum
temperature
for June 2010 (°C)
Previous lowest
for June
Years of
record
Average for
June
Lord Howe Island Aero 13.7 13.9 in 1997 21 14.9



Summary statistics for June 2010
Maximum temperatures
for June
(°C)
Minimum temperatures
for June
(°C)
Rainfall
for June
(millimetres)
Mean for
June
2010
Diff
from
average
Highest for
June
2010
Mean for
June
2010
Diff
from
average
Lowest for
June
2010
Total for
June
2010
Average
for
June
Rank of
June
2010
Fraction of
June
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 17.2   23.1 24th 5.9   -0.8 28th 3.2
Tibooburra Airport 18.5   24.7 25th 6.8   0.5 29th 0.6
Tibooburra Post Office 18.7 +0.3 24.7 25th 6.6 +0.2 -0.1 28th 1.2 16.6 low 7%
White Cliffs AWS 17.8   24.4 25th 7.3   1.7 29th 2.0
White Cliffs Post Office 18.0 +0.4 24.6 25th 6.7 +1.4 -0.2 29th 4.0 19.0 low 21%
Wilcannia (Reid St) 18.0 +0.3 25.2 25th 6.0 +0.6 -0.2 29th 3.0 22.4 low 13%
Wilcannia Aerodrome AWS 17.9   25.1 25th 6.0   -1.2 29th 4.8
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 15.7 +0.1 22.0 24th 6.8 +0.6 2.0 14th 14.8 22.0 average 67%
Broken Hill Airport AWS 15.6 -0.4 22.0 24th 5.8 +0.2 1.0 8th 2.8 15.2 low 18%
Lake Victoria Storage 16.1 +0.5 19.0 24th 5.5 -0.3 -0.6 15th 5.6 23.2 low 24%
Menindee Post Office 17.7 +0.4 24.4 24th 6.8 +1.9 1.4 15th 13.7 21.7 average 63%
Pooncarie Mail Agency 17.1   22.2 24th 5.9   0.4 14th 36.8 26.1 high 141%
Western (Upper Darling) (district 48)
Brewarrina Hospital 18.5 -0.1 22.1 24th 4.9 -0.7 -2.5 29th 11.2 32.9 low 34%
Cobar Airport AWS 16.3   21.9 25th 4.5   -3.0 29th 13.0
Cobar MO 16.5 0.0 22.0 25th 6.0 -0.2 0.0 29th 20.0 27.4 average 73%
Collarenebri (Albert St) 18.9 -0.2 22.7 24th 5.1 -0.2 -3.7 30th 16.0 34.8 average 46%
Lightning Ridge Visitors Information Cen 19.2   23.0 16th 5.7   -3.5 30th 14.2
Wanaaring Post Office 19.2   25.4 25th 6.5   -1.2 29th 8.2 19.6 average 42%
Western (Southwest Plains) (district 49)
Balranald (RSL) 15.8 -0.3 21.0 24th 5.8 +1.5 0.2 14th 16.8 29.8 average 56%
Ivanhoe Aerodrome AWS 16.4   22.3 25th 6.4   0.8 14th 2.6
Ivanhoe Post Office 17.0 -0.1 23.0 25th 5.3 +0.9 -1.2 28th 15.0 26.9 average 56%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 16.3 +0.6 20.8 25th 4.5 +0.7 -1.6 28th 26.4 29.5 average 89%
Condobolin Airport AWS 16.5   21.4 25th 4.3   -2.2 13th 28.0
Peak Hill Post Office 16.1 -0.1 21.0 3rd 6.3 +0.2 -1.1 30th 31.4 42.8 average 73%
West Wyalong Airport AWS 14.9   19.5 25th 4.2   -1.4 13th 29.0
Central Western Plains (North) (district 51)
Coonamble Airport AWS 17.8   21.5 23rd 4.6   -2.5 30th 23.2
Coonamble Comparison 18.1 +0.1 21.7 16th 4.6 -0.4 -3.9 30th 24.6 37.0 average 66%
Nyngan Airport 17.5 +0.5 21.0 25th 5.6 +0.7 -2.0 30th 28.2 32.7 average 86%
Trangie Research Station AWS 16.7 +0.7 20.5 16th 4.8 +0.4 -3.3 29th 31.0 35.6 average 87%
Northwest Plains (West) (district 52)
Mungindi Post Office 19.9 +0.6 23.9 23rd 5.4 -0.3 -2.0 29th 10.6 33.6 low 32%
Walgett Airport AWS 19.0   23.0 25th 3.9   -5.2 30th 12.6
Northwest Plains (East) (district 53)
Moree Aero 18.2   21.7 23rd 5.1   -3.3 28th 15.4
Northwest Slopes (North) (district 54)
Barraba Post Office 16.7 -0.1 20.0 21st 2.2 +0.6 -5.6 30th 42.1 46.7 average 90%
Narrabri Airport AWS 17.6   21.5 25th 5.0   -3.2 30th 21.2
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 17.3   20.8 25th 3.2   -5.8 30th 33.2
Gunnedah Pool 17.7 +0.1 20.6 21st 5.8 +1.5 -2.2 30th 37.4 43.9 average 85%
Gunnedah Resource Centre 16.9 +0.1 20.5 25th 6.1 0.0 -0.7 29th 39.6 39.5 average 100%
Quirindi Post Office 16.6 0.0 20.4 21st 2.8 0.0 -4.6 30th 39.6 51.3 average 77%
Tamworth Airport AWS 17.0   20.7 4th 3.6   -4.1 30th 39.6
Woolbrook (Danglemah Road) 13.3 -0.2 17.0 1st 0.3 +0.3 -8.5 30th 31.6 43.5 average 73%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 13.1   16.8 25th 1.1   -9.1 29th 25.4
Armidale Airport AWS 12.0   15.7 25th 2.3   -6.0 29th 27.6
Glen Innes Ag Research Stn 13.1 0.0 16.0 5th 2.3 +0.5 -6.8 29th 27.2 52.8 low 52%
Glen Innes Airport AWS 13.4   16.5 7th 0.3   -9.9 29th 56.8
Glen Innes Post Office 13.6 +0.2 16.6 1st 3.1 +1.2 -5.9 29th 25.8 55.3 low 47%
Guyra Hospital 11.0 -0.1 14.0 1st 1.3 -0.5 -5.0 29th 51.0 45.4 average 112%
Inverell (Raglan St) 16.6   19.5 23rd 1.3   -6.6 29th 51.0
Inverell Research Centre 16.0 +0.3 19.6 1st     -2.6 30th 53.4 44.0 average 121%
Tenterfield (Federation Park) 15.4 +0.4 17.6 20th 1.2 -1.2 -6.5 29th 22.1 50.4 average 44%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 16.3 -0.3 20.1 26th 7.4 -0.8 2.8 30th 68.8 56.1 average 123%
Upper North Coast (district 58)
Alstonville Tropical Fruit Research Stat 19.1 +0.1 22.0 26th 11.3 +0.4 7.5 12th 311.3 163.4 v high 191%
Ballina Airport AWS 20.1   23.1 9th 10.2   4.6 30th 300.6
Byron Bay (Cape Byron AWS) 18.8   22.7 9th 12.6   9.6 13th 110.0
Casino Airport 20.4 -1.0 23.5 5th 8.9 +0.9 3.1 30th 35.4 67.2 average 53%
Casino Airport AWS 20.2   23.3 26th 8.4   1.9 30th 35.6
Evans Head RAAF Bombing Range AWS 19.5   24.0 9th 11.2   5.6 30th 223.6
Grafton Airport AWS 20.1   23.3 5th 6.3   -1.2 30th 41.6
Grafton Olympic Pool 20.9 +0.1 24.5 5th 7.8 -0.3 1.0 30th 47.2 66.1 average 71%
Grafton Research Stn 20.0   24.1 5th 8.4   1.4 30th 41.2 70.9 average 58%
Lismore (Richmond Hill) 19.9   22.9 9th 10.1   4.4 30th 168.2
Lismore Airport AWS 20.0   23.3 26th 7.6   0.7 12th 58.0
Murwillumbah (Bray Park) 20.8 -0.5 23.6 9th 9.2 -0.6 3.8 12th 58.9 98.0 average 60%
Yamba Pilot Station 19.7 +0.1 23.0 26th 11.0 +0.2 5.7 30th 155.6 131.6 average 118%
Lower North Coast (district 59)
Coffs Harbour MO 18.8 -0.6 22.3 9th 9.5 +0.5 1.3 30th 124.2 116.3 average 107%
Dorrigo (Old Coramba Rd) 13.9   16.5 19th 5.5   -2.5 30th 117.4
Kempsey (Wide Street) 19.3 -0.7 22.1 1st 8.2 +1.1 1.9 30th 97.7 96.8 average 101%
Kempsey Airport AWS 19.0   21.9 1st 7.3   -2.0 30th 91.8
South West Rocks (Smoky Cape Lighthouse) 19.4 +0.2 22.3 1st 11.7 -0.5 9.0 29th 222.8 133.1 high 167%
Manning (district 60)
Forster - Tuncurry R.V.C.P. 18.5   21.0 5th 10.4   5.8 30th 148.2 117.9 high 126%
Port Macquarie Airport AWS 18.4   22.0 1st 8.7   1.0 30th 201.8
Taree Airport AWS 18.3   21.4 25th 8.6   0.4 30th 161.2
Yarras (Mount Seaview) 17.9 -0.9 21.0 21st 7.9 +1.0 -1.0 30th 220.2 109.5 high 201%
Hunter (district 61)
Cessnock (Nulkaba) 18.3 +0.2 20.6 2nd 5.9 -0.1 -1.2 30th 82.4 57.6 high 143%
Cessnock Airport AWS 17.4   20.0 2nd 5.1   -1.4 30th 79.6 53.6 high 149%
Cooranbong (Lake Macquarie AWS) 18.3   20.7 26th 5.7   -2.8 30th 113.2
Gosford (Narara Research Station) AWS 17.7 -0.2 20.1 16th 6.2 -0.3 -1.5 30th 149.0 128.5 high 116%
Jerrys Plains Post Office 17.8 -0.2 21.5 5th 4.3 -1.0 -0.7 28th 34.2 47.6 average 72%
Maitland Visitors Centre 18.3   20.9 25th 6.6   -0.5 29th 113.9
Mangrove Mountain AWS 15.5   18.2 16th 6.0   0.6 28th 63.0
Merriwa (Roscommon) 15.7   19.1 5th 2.6   -4.6 28th 17.8 39.5 average 45%
Murrurundi Gap AWS 12.5   16.3 16th 5.0   0.2 29th 47.0
Murrurundi Post Office 15.6 -0.2 19.4 16th 2.8 -0.4 -3.6 29th 45.5 70.0 average 65%
Nelson Bay (Nelson Head) 17.6 -0.8 20.0 25th 11.6 +2.0 7.9 30th 152.1 153.9 average 99%
Newcastle Nobbys Signal Station AWS 17.8 +0.3 19.8 26th 10.5 +0.8 5.9 30th 114.6 117.3 average 98%
Newcastle University 17.9   20.5 3rd     3.5 28th 145.5
Norah Head AWS 17.1   19.5 3rd 10.6   5.3 30th 144.2
Paterson (Tocal AWS) 17.8 0.0 20.6 5th 7.2 -0.3 1.1 29th 85.0 72.6 high 117%
Peats Ridge (Waratah Road) 15.9 -0.5 19.5 16th 6.5 -0.7 1.1 29th 114.5 98.6 high 116%
Scone Airport AWS 17.0   20.4 25th 3.6   -4.8 30th 36.0
Singleton STP 17.7   20.5 25th 5.2   0.0 28th 46.1
Williamtown RAAF 17.8 +0.2 20.2 3rd 7.5 -0.4 -1.8 30th 128.0 121.3 average 106%
Central Tablelands (North) (district 62)
Gulgong Post Office 15.1 -0.3 19.8 16th 3.6 0.0 -4.8 30th 35.6 51.0 average 70%
Mudgee Airport AWS 14.3   18.1 16th 1.6   -6.7 30th 40.4
Nullo Mountain AWS 8.8   12.8 16th 2.9   -3.4 29th 59.4
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 12.8 +0.6 16.4 2nd 1.5 -0.1 -6.7 30th 21.5 43.7 low 49%
Bathurst Airport AWS 12.4   15.9 2nd 1.8   -5.7 30th 23.4
Cowra Research Centre (Evans St) 14.5 +0.6 19.6 4th 5.1 +0.3 -1.0 28th 29.6 45.3 low 65%
Katoomba (Murri St) 10.7 +0.7 13.9 16th 3.5 -0.2 -1.8 30th 113.6 117.6 average 97%
Lithgow (Cooerwull) 10.8   14.8 16th 1.9   -5.7 28th 41.0 73.2 average 56%
Mount Boyce AWS 9.6   13.5 16th 3.0   -3.0 29th 83.2
Oberon (Springbank) 9.1 -0.3 12.8 2nd 1.5 +0.7 -5.6 28th 51.0 79.6 average 64%
Orange Agricultural Institute 10.4 -0.1 16.2 2nd 2.3 -0.3 -4.2 30th 51.6 70.5 average 73%
Orange Airport AWS 9.9   14.0 4th 1.3   -5.4 30th 43.8
Orange Airport Comparison 10.4 0.0 15.4 4th 1.8 +0.3 -4.8 30th 44.2 66.2 low 67%
Springwood Bowling Club 16.0   18.7 25th 7.1   0.0 30th 60.2 77.1 average 78%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 15.3 -0.3 19.0 1st 1.1 -0.2 -7.0 30th 42.0 57.2 average 73%
Coonabarabran Airport AWS 13.9   18.4 16th 5.6   -0.5 28th 38.0
Dunedoo Post Office 15.4 -0.6 20.0 16th 3.8 +0.2 -4.5 30th 33.1 44.8 average 74%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 15.0   19.3 4th 3.3   -2.5 13th 10.6
Cowra Airport Comparison 14.9 +0.2 19.4 4th 3.5 +0.4 -2.9 28th 20.2 41.2 low 49%
Dubbo Airport AWS 15.8   20.0 16th 4.2   -4.0 30th 34.2
Forbes Airport AWS 15.6   20.0 3rd 3.5   -2.0 29th 28.6
Parkes (Macarthur Street) 15.5 +0.6 20.0 3rd 4.5 -0.7 -2.5 28th 32.4 49.9 average 65%
Parkes Airport AWS 14.7   19.0 4th 3.6   -3.0 13th 31.4 50.3 low 62%
Wellington (Agrowplow) 15.9 -0.1 20.5 3rd 3.4 -0.1 -4.3 30th 34.6 50.6 average 68%
Metropolitan (East) (district 66)
Bankstown Airport AWS 17.7 0.0 20.0 16th 6.4 -0.2 -0.7 30th 77.6 73.6 average 105%
Canterbury Racecourse AWS 17.6   20.0 16th 6.5   -0.9 30th 103.2
Holsworthy Control Range 17.8   20.3 5th 6.0   -2.6 30th 78.4
Parramatta North (Masons Drive) 17.8 0.0 20.2 5th 7.0 -0.5 1.0 30th 122.0 84.7 high 144%
Riverview Observatory 17.7 +0.5 20.7 20th 8.1 +0.4 1.2 30th 149.5 116.5 high 128%
Sydney (Observatory Hill) 17.7 +0.8 20.5 5th 9.6 +0.3 4.3 30th 147.2 130.7 average 113%
Sydney Airport AMO 17.5 -0.1 19.9 19th 9.4 +0.9 3.2 30th 102.4 120.7 average 85%
Sydney Harbour (Wedding Cake West) 17.1   20.0 4th 10.9   5.0 30th
Sydney Olympic Park (Sydney Olympic Pk A 18.1   20.7 16th 8.6   2.0 30th 102.0
Terrey Hills AWS 16.1   18.4 16th 8.0   0.9 30th 165.6
Metropolitan (West) (district 67)
Badgerys Creek AWS 17.6   20.4 5th 5.3   -3.0 30th 63.0
Horsley Park Equestrian Centre AWS 17.4   20.0 2nd 6.7   -1.8 30th 83.6
Liverpool (Michael Wenden Centre) 18.0   20.5 5th 5.5   -2.4 30th 83.0
Penrith Lakes AWS 17.8   20.3 5th 6.3   -1.1 30th 51.4
Prospect Reservoir 17.3 0.0 20.0 5th 7.2 -0.2 -0.8 30th 76.3 75.1 average 102%
Richmond RAAF 17.8   20.1 5th 4.3   -4.8 30th 51.2
Illawarra (district 68)
Albion Park (Wollongong Airport) 17.8   20.0 25th 7.2   -0.9 28th 62.6
Bellambi AWS 17.5   20.7 25th 10.8   5.4 30th 102.6
Bowral (Parry Drive) 12.0 -0.4 16.7 16th 3.8 +0.5 -3.0 28th 39.1 83.1 low 47%
Camden Airport AWS 17.9 +0.1 20.7 5th 4.2 -0.2 -3.9 30th 69.4 58.5 high 119%
Campbelltown (Mount Annan) 18.0   20.5 20th 4.9   -3.0 30th 75.6
Jervis Bay (Point Perpendicular AWS) 16.2   19.8 17th 10.8   6.6 28th 112.0
Kiama (Bombo Headland) 17.4   20.2 17th 11.0   6.6 30th 71.2
Moss Vale AWS 12.4   16.2 25th 2.8   -5.8 28th 33.8
Nowra RAN Air Station AWS 16.8   20.4 25th 7.3   2.8 28th 90.6
South Coast (district 69)
Batemans Bay (Catalina Country Club) 16.6   20.0 25th 4.6   -1.5 29th 48.3 67.9 average 71%
Bega AWS 16.9   21.6 17th 4.1   -3.4 29th 10.0
Braidwood Racecourse AWS 12.5   15.9 20th 1.0   -5.2 28th 16.6
Green Cape AWS 15.8   19.7 17th 9.9   5.9 29th 23.6
Merimbula Airport AWS 16.7   21.0 17th 6.0   1.0 30th 9.8
Montague Island Lighthouse 15.5 -0.6 19.0 17th 10.6 -0.4 5.6 14th 32.2 97.5 low 33%
Moruya Airport AWS 17.1   20.0 25th 5.6   -3.0 29th 21.0
Moruya Heads Pilot Station 16.8 0.0 19.7 17th 7.8 +0.6 2.8 29th 25.8 87.1 low 30%
Narooma Vmr 16.8 +0.2 21.8 17th 8.5 +0.7 4.0 29th 25.1 87.8 low 29%
Nerriga Composite 12.9 +0.4 16.5 25th 0.5 -0.9 -6.7 28th 28.8 71.6 average 40%
Ulladulla AWS 16.3   19.6 20th 9.5   5.0 29th 128.2
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 12.1 +0.6 15.9 19th -0.4 -0.2 -6.2 29th 18.2 59.0 low 31%
Bombala AWS 10.4   14.5 17th 0.3   -4.4 29th
Canberra Airport 13.0   16.1 2nd 0.6   -5.0 28th 24.8
Canberra Airport Comparison 12.9 +0.7 16.3 2nd 0.9 -0.1 -4.8 28th 19.0 40.4 low 47%
Cooma Airport AWS 10.1   13.3 16th -1.5   -9.2 29th 13.0 33.4 low 39%
Cooma Visitors Centre 11.5 -0.5 15.0 3rd -2.2 -0.8 -8.5 29th 8.8 36.8 low 24%
Goulburn Airport AWS 12.1   16.0 16th 1.0   -6.9 28th 15.2
Goulburn TAFE 11.8 -0.6 16.6 16th 2.5 0.0 -4.7 28th 22.6 49.2 low 46%
Mount Ginini AWS 3.6   7.2 5th -1.8   -7.0 30th 73.4
Taralga Post Office 11.5 +0.3 15.8 16th 1.1 -0.6 -6.9 28th 37.5 74.8 low 50%
Tidbinbilla Nature Reserve 12.5 +0.8 15.5 4th 1.6 +0.3 -5.5 29th 56.4 66.0 average 85%
Tuggeranong (Isabella Plains) AWS 13.3   16.8 4th 0.6   -6.7 29th 36.0
Yass (Linton Hostel) 13.4 +0.8 17.3 4th 2.0 -0.2 -4.6 28th 31.5 57.9 low 54%
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 3.6 +0.4 9.5 4th -5.2 -0.1 -13.5 14th 132.4 186.2 average 71%
Perisher Valley AWS 3.9   9.8 4th -4.3   -11.1 28th 157.6
Perisher Valley Ski Centre 3.7 -0.2 9.0 6th -4.3 -0.8 -11.5 28th 79.9 167.8 low 48%
Thredbo AWS 1.0 -0.5 6.5 4th -4.5 -0.6 -9.1 28th 95.8 86.6 average 111%
Thredbo Village 6.0 -0.6 10.0 4th -3.0 -0.6 -9.6 13th 155.2 161.4 average 96%
Southwest Slopes (South) (district 72)
Albury Airport AWS 13.7   18.4 4th 3.2   -2.0 14th 29.0
Cabramurra SMHEA AWS 4.6   9.7 4th -0.3   -5.0 29th 104.6
Hume Reservoir 13.8 +0.8 18.7 4th 4.9 +0.1 0.2 14th 31.8 67.7 low 47%
Khancoban AWS 12.3   16.6 3rd 1.5   -4.0 14th 61.2
Tumbarumba Post Office 11.4 -0.4 16.5 4th 0.4 +0.2 -5.0 13th 57.8 102.6 low 56%
Wagga Wagga AMO 14.1 +0.3 19.0 4th 3.7 0.0 -2.4 28th 37.6 49.5 average 76%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 13.3 +0.9 18.2 3rd 4.5 +0.4 0.4 28th 59.3 95.3 average 62%
Cootamundra Airport 14.0   18.5 4th 1.2   -5.0 13th 29.3
Gundagai (William St) 14.0   18.8 3rd 2.8   -3.4 28th 37.4
Quandialla Post Office 15.2 0.0 19.0 25th 4.6 +0.6 -1.8 28th 27.0 40.2 average 67%
Temora Airport 14.3   18.6 25th 3.1   -2.5 13th 22.0
Wyalong Post Office 15.2 +0.3 19.5 25th 4.9 +0.8 -0.6 28th 27.0 42.6 average 63%
Young Airport 13.9   17.6 4th 1.5   -4.7 28th 38.8
Riverina (East) (district 74)
Corowa Airport 14.1 +0.3 18.1 4th 3.6 0.0 -2.0 14th 25.0 56.2 low 44%
Deniliquin Airport AWS 14.2   18.2 1st 4.4   -1.3 14th 22.8
Narrandera Airport 15.0   19.2 25th 4.4   -2.0 28th 16.0 37.5 low 43%
Narrandera Golf Club 14.9 -0.1 18.6 25th 4.6 +0.3 -1.2 28th 15.4 40.3 low 38%
Tocumwal Airport 14.2 -0.6 18.4 3rd 4.2 -0.1 -1.1 28th 27.6 44.1 average 63%
Yanco Agricultural Institute 14.8   19.0 4th 5.9   -0.3 13th 14.6
Riverina (West) (district 75)
Griffith Airport AWS 15.4 -0.1 20.3 16th 5.7 +1.2 -0.5 28th 20.8 34.1 average 61%
Hay (Miller Street) 15.5 -0.3 19.6 2nd 5.2 +0.7 -0.6 14th 17.4 35.9 low 48%
Hay Airport AWS 15.5   20.0 1st 4.7   -1.0 28th 12.4
Hillston Airport 16.5 +0.8 21.6 25th 5.6 +0.7 -1.0 28th 18.0 34.9 average 52%
Lake Cargelligo Airport 16.3 +0.2 21.8 25th     -0.6 28th 11.5 37.0 low 31%

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 Thursday 1 July 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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