Wednesday, 4 January 2012 - Annual Climate Summary for Northern Territory - Product code IDCKGC22R0
Northern Territory in 2011: A year of extremes
- 3rd wettest year on record for the NT
- Coolest year since 1976
- Darwin Airport
- 2nd wettest year on record
- Tied coolest mean minimum temperature on record
- 96 nights below 20 °C
- Coolest dry season nights on record
- Alice Springs
- A few very hot days
- Overall, cooler than average
The Northern Territory had a very eventful year from tropical cyclones to severe bushfires, record heat waves in January to record cool streaks in June. Several new monthly and seasonal records were set around the Territory this year including the coldest May day, the wettest day and the most nights below 20 °C. Darwin Airport, Gove, Jabiru and Tennant Creek all had their 2nd wettest year on record.
Tropical Cyclone Carlos
TC Carlos formed over the Beagle Gulf early on 16 February and moved very slowly southeast over Darwin and the surrounding rural area. This contributed further rainfall to the already wet conditions. TC Carlos was downgraded to a tropical low on the morning of 17 February, near Batchelor. Ex-TC Carlos then tracked southwards over the western Top End reaching the WA/NT border on 19 February. Very heavy rainfall associated with TC Carlos broke many rainfall records in the region. The heavy rain had a major impact on Darwin and surrounding areas, causing widespread flooding of low lying areas, inundating many houses and damaging roads and properties. Flooding of coastal areas was exacerbated by some of the largest astronomical tides of the year.
Squally winds with gusts reaching 98 km/h lashed the Darwin area during the night of the 15th and again on the 16th, felling trees and power lines, cutting roads and damaging properties. Most government departments, schools and businesses were closed for two days during the event. Darwin Airport was also closed during the worst weather conditions on 16 February. Ex-TC Carlos caused widespread flooding elsewhere in the Darwin-Daly District, including a major flood in the Daly River, inundating the community of Nauiyu about 150 km south of Darwin.
Dry conditions led to NT bushfires
Following a record wet season, the whole Northern Territory experienced several dry months during the middle of the year. The Alice Springs District usually gets between 55 mm and 70 mm in the May through September period from frontal passages along the southern border. This season, however, persistent high pressure over central Australia prevented most of the cold fronts from moving into the Territory. Several locations, including Alice Springs Airport, did not receive any rainfall in August or September. By the end of the dry season Alice Springs Airport had recorded only 17.6 mm. This is only 27% of their average and marks the third driest May through September period on record. In these especially dry conditions the once-lush biota became ample fuel for bushfires across the NT.
In addition to a high fuel load, dry and gusty southeast winds raised the fire danger index (FDI) across the Territory. The FDI reached "catastrophic" levels 9 times in the NT during this years dry season. Significant fires were reported in every month of the dry season; August and September were especially bad in the Top End and throughout the Red Centre. A total of 22 fire ban days were issued by fire authorities during August and September for various Fire Protection Zones across the Territory. Several thousands of square kilometers burned across the Territory but especially around the Alice Springs area. Local media at Alice Springs reported that an area greater than Tasmania was burned by bushfires.
Tropical Cyclone Grant
On 21 December, a surface low was identified to the north of the Cobourg Peninsula by satellite observations. The system lacked persistent deep convection and did not develop to tropical cyclone strength for several days. Overnight on 24 December further development occurred and TC Grant was named at 3:30 on Christmas morning, Sunday, 25 December.
Gusts to 63 km/h were first observed at McCluer Island around 4am on the 25th and mean winds of 63 km/h were observed about six hours later. These winds steadily increased and around noon on the 25th storm force winds of 92 km/h gusting to 110 km/h were reported at McCluer Island. TC Grant then moved in a south southwest direction along the coast over the far eastern Van Diemen Gulf. It was weakening, but maintained as a Category 2 system until early on the 26th. Around dawn on the 26th it crossed the coast again at the southeastern corner of the Van Diemen Gulf as a Category 1 system. By mid-day on the 26th it was downgraded to below TC strength. The storm moved east, crossing the Gulf of Carpentaria, but did not reform into a tropical cyclone.
TC Grant caused intense rainfall and flash flooding, washing away roads and railway lines in the Top End.
TC Carlos dumped record rainfall at Darwin Airport
In the 24 hour period to 9 am on 16 February, as Tropical Storm Carlos moved slowly over the Darwin area, Darwin Airport recorded 367.6 mm of rain, which is a new record for the airport. The previous highest 24 hour rainfall for Darwin Airport was recorded on 3 January 1997, when Tropical Cyclone Rachel brought 290.4 mm of rain to Darwin. The 3-day total (15 to 17 February 2011) was 684.8 mm, breaking the previous 3-day record set between 8 and 10 December 1998, when Tropical Cyclone Thelma brought 462.0 mm of rain (see Special Climate Statement 29). The monthly rainfall total for February at Darwin Airport was 1110.2 mm, becoming the wettest of any month on record, passing the March 1977 total of 1013.6 mm.
Overall, a very wet year
The average rainfall across the NT in 2011 was 970.3 mm, which is 430.5 mm above average and the 3rd wettest year on record. The exceptionally wet year is likely the direct result of back-to-back La Niña events in the Pacific, and a few single very wet events, like TC Carlos and TC Grant, which added to the overall rainfall total. By the end of the year Darwin Airport had 2693.0 mm of rain, which is their 2nd wettest year on record after 1998 (2776.69 mm).
The wettest locations overall in the NT were Lake Evella with 3866.6 mm followed by Territory Wildlife Park with 3061.2 mm, which marks the first times on record that any station has exceeded 3 metres of rainfall in a calendar year (both totals exceed the previous NT annual rainfall record which was 2953.2 at Channel Point in 2000). The third wettest location this year was at Majestic Orchids with 2924.3 mm. There were also many other sites had their highest total rainfall on record.
The wettest single day was at Edith Falls Ridge with 385.0 mm on 27 December followed by Darwin Airport with 367.6 mm on 16 February. Many sites had their highest daily rainfall on record, including Darwin Airport, Palmerston, Territory Wildlife Park and Middle Point.
The driest overall was Bond Springs Turnoff with 122.0 mm, followed by Upper Bond Springs with 289.0 mm, and then Watarrka with 308.7 mm.
This years mean temperature across the Territory was 24.2 °C, which is 1.02 °C below average for the NT and ranks as the 7th coolest mean temperature on record.
The warmest on average was Jabiru Airport with 27.9 °C, followed by North East Island and Warruwi both with 27.3 °C, followed by Darwin Airport with 27.0 °C. The coolest on average was Arltunga with 19.5 °C, followed by Alice Springs Airport with 20.4 °C, and then Kulgera with 20.6 °C.
Yulara heat wave
On January 27th, Yulara broke its highest temperature record when it reached a daytime maximum temperature of 46.3 °C, only to break this record again the following day with 46.4 °C. This new record falls just 1.9 °C shy of the all time Northern Territory maximum temperature record set on January 1st 1960 with 48.3 °C at Fink Post Office. January was also Yulara's hottest month on record with an average maximum temperature of 40.9 °C, which surpasses the previous record of 40.8 °C set in February 2007. Furthermore, Yulara measured 17 consecutive days above 40 °C including 11 consecutive days above 42 °C, which are both record longest hot spells of that magnitude. The dates of this hot spell were from January 14th to the 30th, inclusive.
Low maximum temperatures on average
When averaged across the Territory this years mean maximum temperature was 30.8 °C, which is 1.1 °C below average and and is the coolest year since 1976 in terms of maximum temperature. Every month saw below average temperatures except for July and August, which were above average and January, September, and October which were very near the average temperature.
Even with below average maximum temperatures for most of the year, there were a few very hot days across the Territory. The hottest days were at Yulara Aero with 46.4 °C on 28 January, and 46.3 °C on 27 January. Walungurru had the next hottest day with 46.2 °C on 28 January.
The warmest days on average were at Bradshaw with 33.9 °C, followed by Timber Creek with 33.7 °C, Noonamah with 33.6 °C, and then Jabiru Airport with 33.5 °C.
The coolest days on average were at Arltunga with 27.6 °C, followed by Kulgera with 28.2 °C, and then Alice Springs Airport with 28.5 °C.
The coldest day was at Kulgera where the maximum temperature only got to 10.2 °C on 13 July, followed by Alice Springs Airport which had 10.5 °C on 14 July, and then Arltunga with 10.8 °C on 9 Jun and Curtin Springs which also had 10.8 °C on 13 July.Some sites had their lowest mean daily maximum temperature on record including Larrimah, Alyangula Police, and Batchelor.
Plenty of cool nights in the Top End
Darwin Airport recorded 96 nights below 20 °C, 94 of which occurred during the dry season months of May through September. This included every night in June which marks the first time since records began that June had 30 nights below 20 °C. In an average year the overnight temperature will drop below 20 °C about 50 times. The previous highest number nights below 20 °C was 93 nights set in 1976. The coolest night this year was on June 14th when the mercury fell to 12.7 °C. This was the coolest night since 27 June 2008. The record coolest night in Darwin still stands at 10.4 °C set on 29 July 1942.
With a mean daily minimum temperature of 22.3 °C, 0.9 °C below its normal, Darwin Airport tied its lowest mean daily minimum temperature on record. Timber Creek also tied their record coolest year with 20.0 °C, 1.1 °C below average for them. Daly Waters set a new record for minimum temperatures with an annual average of 17.2 °C; this is 0.7 °C cooler than their previous record set in 2006.
Arltunga breaks 113 year old record in May
On 28 May the minimum temperature at Arltunga dropped to -3.8 °C breaking the long-held Northern Territory record for the coldest May minimum temperature of -3.0 °C set at Alice Springs Post Office on 27 May 1898. This new record was then broken again on the 31 May when the minimum temperature at Arltunga dropped to -4.2 °C. While not an all-time record, Arltunga felt the coldest temperature this year with -6.1 °C on 25 July 2011. The record lowest temperature in the NT still stands at -7.5 °C set at Alice Springs Airport on 17 July 1976.
Minimum temperatures were cool in NT
When averaged across the Territory, minimum temperatures were among the coolest on record. The average minimum temperature for 2011 in the NT was 17.6 °C. This is 0.87 °C below average and the coolest since 1976. The three coldest nights were all at Arltunga with -6.1 °C on 25 July, -6.0 °C on 24 July, and then -5.0 °C on 1 Jun. It is no surprise then that the coolest nights on average were at Arltunga with an annual average minimum temperature of 11.5 °C. Alice Springs Airport was the second coolest with 12.4 °C followed by Kulgera with 13.1 °C.
The warmest nights on average were at North East Island where the average annual minimum temperature was 24.5 °C, followed by Warruwi with 23.7 °C, and then Centre Island with 23.1 °C.The warmest single night this year was at Papunya on 28 January when the minimum temperature was 31.6 °C. The next warmest night was at Walungurru with 30.9 °C on 28 January.
The strongest wind gusts around the Territory this year was at McCluer Island with 126 km/h on 25 December from TC Grant, followed by Rabbit Flat with 107 km/h on 11 December. Darwin Airport measured 98 km/h on 15 February as pre-TC Carlos moved over. Tennant Creek Airport also measured a maximum wind gust of 98 km/h on 15 October, and Daly Waters had a gust of 98 km/h on 24 October. The next strongest gust was Walungurru with 96 km/h on 28 January.
|Extremes in 2011|
|Hottest day||46.4 °C at Yulara Aero on 28 Jan|
|Warmest days on average||
33.9 °C at Bradshaw
|Coolest days on average||
27.6 °C at Arltunga
|Coldest day||10.2 °C at Kulgera on 13 Jul|
|Coldest night||-6.1 °C at Arltunga on 25 Jul|
|Coolest nights on average||
11.5 °C at Arltunga
|Warmest nights on average||
24.5 °C at North East Island
31.6 °C at Papunya on 28 Jan
|Warmest on average overall||
27.9 °C at Jabiru Airport
|Coolest on average overall||
19.5 °C at Arltunga
|Wettest overall||3866.6 mm at Lake Evella
122.0 mm at Bond Springs Turnoff
|Wettest day||385.0 mm at Edith Falls Ridge on 27 Dec|
|Highest wind gust||126 km/h at McCluer Island on 25 Dec|
|Record highest annual daily rainfall|
Highest daily rainfall
in 2011 (mm)
|Darwin Airport||367.6||on 16 Feb||290.4||on 3 Jan 1997||71|
|The Garden||134.6||on 8 Mar||134.4||on 29 Jan 1974||58|
|Berrimah Research Farm||245.2||on 16 Feb||222.0||on 16 Mar 1977||49|
|Channel Island||313.2||on 16 Feb||290.2||on 13 Dec 2009||41|
|Kalala||155.0||on 20 Nov||138.0||on 22 Apr 2000||34|
|Atula||119.6||on 22 Feb||119.2||on 28 Feb 2010||33|
|Nightcliff Sports Club||280.0||on 16 Feb||259.8||on 16 Mar 1977||33|
|Mango Farm||230.2||on 18 Feb||218.4||on 14 Apr 1985||32|
|Palmerston||300.0||on 16 Feb||295.7||on 3 Jan 1997||29|
|Stokes Hill||288.4||on 16 Feb||273.6||on 13 Dec 2009||27|
|Wagait Beach||367.0||on 16 Feb||279.2||on 3 Mar 2007||24|
|Leanyer*||344.2||on 16 Feb||271.4||on 3 Jan 1997||23|
|Territory Wildlife Park||327.0||on 17 Feb||260.0||on 10 Dec 1998||21|
|Top Springs Roadhouse||111.0||on 25 Jan||110.0||on 28 Jan 2006||21|
|Lake Evella||196.0||on 22 Mar||135.0||on 22 Dec 2003||19|
|Kalkarindji||258.2||on 23 Mar||156.4||on 24 Dec 2003||17|
|Point Fawcett||265.2||on 16 Feb||223.8||on 20 Dec 2008||17|
|Beeboom Crossing||203.5||on 18 Feb||183.5||on 5 Jan 2008||16|
|Delamere Weapons Range||156.4||on 8 Feb||143.0||on 26 Feb 2003||15|
|East Arm||330.0||on 16 Feb||131.5||on 20 Feb 2008||15|
|Wongalara||185.0||on 28 Mar||171.4||on 7 Apr 2001||13|
|Rankin Point||260.0||on 15 Feb||235.0||on 13 Dec 2009||12|
|Seventeen Mile Creek||184.5||on 27 Dec||144.0||on 3 Mar 2004||12|
|Wigley Gorge||65.0||on 9 Jan||61.0||on 28 Feb 2010||12|
|Middle Point||142.0||on 15 Feb||112.4||on 31 Dec 2006||11|
* On 16 Feb the this raingauge overflowed. The recorded amount represents an underestimate of the actual rainfall on that day.
|Record highest total annual rainfall|
for 2011 (mm)
|Bradshaw Homestead||2000.6||1469.5||in 2010||61||919.1|
|Daly Waters||1182.2||1112.4||in 2004||41||664.7|
|Centre Island||1955.6||1794.4||in 2010||40||1042.7|
|Cdu Katherine Rural Campus||1698.4||1652.8||in 2003||38||1096.1|
|Darwin River Dam||2642.6||2298.6||in 1998||36||1642.5|
|McArthur River Mine||1535.1||1430.2||in 2003||34||755.6|
|Timber Creek||1450.5||1410.3||in 2000||30||958.7|
|Mango Farm||2306.1||1991.1||in 2008||29||1434.5|
|Nightcliff Sports Club||2590.3||2516.0||in 1977||23||1859.0|
|Stokes Hill||2421.2||2043.2||in 1977||21||1596.2|
|Acacia, Mocatto Road||2533.7||2290.9||in 1998||13||1851.7|
|Batchelor Aero||2204.4||2129.8||in 2001||13||1639.4|
|Bing Bong Port||2033.9||1780.4||in 2006||12||1167.2|
|Territory Wildlife Park||3061.2||2264.3||in 1997||12||1809.0|
|Geriatric Park||2880.4||2759.4||in 1998||10||2368.8|
|Middle Point||1934.8||1827.4||in 2006||10||1462.5|
* On 16 Feb the this raingauge overflowed. The recorded amount represents an underestimate of the actual rainfall.
|Record lowest annual daily maximum temperature|
Lowest daily maximum
in 2011 (°C)
|Point Fawcett||23.4||on 13 Jun||24.0||on 12 Jun 2000||13||31.5|
|Groote Eylandt Airport||21.4||on 11 Jun||21.5||on 17 Aug 2007||11||32.1|
|Record lowest annual mean daily maximum temperature|
Mean daily maximum
for 2011 (°C)
|Tennant Creek Airport||30.2||= 30.2||in 1974||40||31.9|
|Wave Hill||32.3||= 32.3||in 1974||35||34.2|
|Timber Creek||33.7||34.0||in 2000||29||34.9|
|Alyangula Police||30.5||30.6||in 2000||27||31.5|
|Tindal RAAF||32.7||= 32.7||in 2000||21||33.8|
|Douglas River||33.1||33.4||in 2006||16||34.3|
|Borroloola||32.5||= 32.5||in 2000||15||33.8|
|Delamere Weapons Range||32.2||32.9||in 2000||12||33.8|
|Batchelor Aero||32.5||33.1||in 2000||10||33.8|
|Groote Eylandt Airport||31.5||= 31.5||in 2000||10||32.1|
|Record lowest annual temperature|
in 2011 (°C)
|Point Fawcett||8.2||on 15 Jun||9.2||on 30 Jun 2007||13||22.8|
|Dum In Mirrie||10.0||on 15 Jun||10.7||on 26 Jul 2008||12||23.2|
|Ngayawili||10.5||on 15 Jun||11.6||on 26 Jul 2008||11||22.7|
|Record lowest annual mean daily minimum temperature|
Mean daily minimum
for 2011 (°C)
|Darwin Airport||22.3||= 22.3||in 1976||67||23.2|
|Daly Waters||17.2||17.9||in 2006||37||19.3|
|Timber Creek||20.0||= 20.0||in 2008||28||21.1|
|Delamere Weapons Range||19.7||19.9||in 1999||12||20.8|
|Territory Grape Farm||13.6||13.7||in 1997||12||14.6|
Click on a map to show it full size in a pop-up window
|Month by month|
|January experienced a record heat wave that hit Yulara and others in the Alice Springs District while a monsoon trough drizzled steadily across the Top End. On the 27th, Yulara broke its highest temperature record when it reached a daytime maximum temperature of 46.3 ° C, only to break this record again the following day with 46.4 ° C. Between the 14th and the 30th of the month, there were 17 consecutive days above 40 ° C including 11 consecutive days above 42 ° C. Darwin measured 26 rain days during the month, with 23 of these falling consecutively between the 4th and the 26th.|
|Rainfall rank||Maximum temperature rank||Minimum temperature rank|
|February was marked by Tropical Cyclone Carlos which formed over Darwin on the 16th. It was a notably slow moving storm which broke several rainfall records around the Darwin area. Darwin Airport recorded 367.6 mm of rain in the 24 hour period to 9 am on 16 February which is the wettest day on record. Darwin Airport also measured the coolest February day on record when the maximum temperature only reached 24.8 on the 15th.|
|March saw several rainfall records broken. Nine sites had their wettest March on record including Brunette Downs, McArthur River Mine and Rabbit Flat. Darwin Airport was among several sites that surpassed their previous wet season rainfall record in March. Also, thick cloud cover kept daily maximum temperatures low.|
|April began with heavy rains and gusty storms across the Top End with several stations exceeding their previous record April rainfall within the first week of the month. The following weeks showed signs of the approaching dry season with cooler nights and fewer storms.|
|May saw sub-zero temperatures come early to Alice Springs with 5 consecutive days below zero setting a record for the most consecutive May days below freezing. Arltunga set a new NT minimum temperature record for May with -4.2 °C on the 31st. Darwin also saw record cool nights.|
|June was the coldest on record for minimum temperatures across the NT. Darwin dropped below the 20 °C every night of the month for the first time since records began in 1941. Alice Springs also experienced below average night-time temperatures throughout June, enduring 10 nights in a row below 1 °C.|
|July was the first month since October 2010 that Darwin Airport measured above average mean maximum temperatures. Rainfall was near average for a dry season month with the far south-western Alice Springs and the eastern Arnhem districts being the only places that measured any rain for the month.|
|August night-time temperatures were below average across most of the Northern Territory, daytime temperatures were slightly warmer than the month before. On 29 August, Darwin Airport had a maximum temperature of 34.8 °C was the warmest day to that point this year. Fog was observed at Darwin Airport on five days in August. And Below average rainfall fell across the NT except for along the Gulf of Carpentaria.|
|September experienced extreme fire weather across Territory, several fire bans were imposed by fire authorities throughout the month. Several thousands of square kilometers burned around the Alice Springs area. Minimum temperatures were below average for most of the month, the Darwin Area enjoyed 5 nights below 20 °C.|
|October had a dry start but weather systems in the second half of the month led to above average rainfall across most of the NT. Overall, temperatures across the Territory were above average.|
|November 2011 ranks 4th wettest on record. The average rainfall across the NT during November was 87.5 mm, well above the monthly average of 39.5 mm. Except for a few locations along the north coast, including Darwin, most of the Territory experienced below average temperatures for the month.|
|In December Tropical Cyclone Grant brought heavy rains to the eastern Top End. Gove and Jabiru both recorded their wettest December on record while Darwin Airport and Alice Springs had below average rainfall.|
|Rainfall rank||Maximum temperature rank||Minimum temperature rank|
Click on the month to read the full monthly summary
|Summary statistics for 2011|
|Darwin-Daly (district 14GA)|
|Batchelor Aero||32.5||-1.2||38.6||18 Oct||20.6||-0.5||8.0||16 Jun||2204.4||1639.4||v high||134%|
|Darwin Airport||31.6||-0.4||35.8||27 Nov||22.3||-0.9||12.7||14 Jun||2686.0||1729.4||v high||155%|
|Delamere Weapons Range||32.2||-1.5||40.4||11 Oct||19.7||-1.1||6.6||18 Jun||1174.0||904.7||high||130%|
|Douglas River||33.1||-1.1||40.6||12 Oct||19.4||-0.4||4.1||16 Jun|
|Jabiru Airport||33.5||-0.8||39.2||31 Oct||22.3||-0.3||10.7||14 Jun||2463.6||1576.2||v high||156%|
|Middle Point AWS||33.2||-0.9||39.8||14 Oct||19.8||-0.8||6.3||17 Jun||1934.8||1462.5||v high||132%|
|Noonamah AWS||33.6||39.3||20 Oct||20.2||8.4||20 Jun||2667.4|
|Port Keats Aero||32.3||-0.7||38.9||25 Dec||21.2||-0.7||8.6||14 Jun||1604.6||1186.7||high||135%|
|Tindal RAAF||32.7||-1.0||40.7||12 Oct||19.6||-0.9||6.0||15 Jun||1162.4||1123.4||average||103%|
|Arnhem (district 14BC)|
|Alyangula Police||30.5||-0.9||37.2||12 Oct||11.5||13 Jun||1628.4||1227.6||high||133%|
|Gove Airport||30.7||+0.1||37.6||11 Dec||22.0||-0.4||13.1||11 Aug||2167.0||1469.9||v high||147%|
|Groote Eylandt Airport AWS||31.5||-0.6||39.1||11 Oct||20.3||-0.4||7.1||14 Jun||1636.8||1415.2||average||116%|
|Ngayawili||31.1||-0.3||36.7||27 Nov||22.6||-0.2||10.5||15 Jun||1820.6||1581.1||high||115%|
|North East Island||30.1||35.7||16 Dec||24.5||19.7||13 Jun||1779.2||860.8||v high||207%|
|Warruwi||30.9||-0.3||36.3||15 Oct||23.7||-0.6||15.5||15 Jun|
|Roper-Mcarthur (district 14DE)|
|Borroloola||32.5||-1.2||40.7||11 Oct||18.4||-1.3||4.6||13 Jun||1594.6||935.7||high||170%|
|Centre Island||30.3||-0.9||38.2||14 Oct||23.1||-0.7||13.2||11 Jun||1955.6||1042.7||highest||188%|
|Daly Waters AWS||32.4||-1.4||41.7||12 Oct||17.2||-2.0||2.0||14 Jun||1182.2||664.7||highest||178%|
|Larrimah||32.4||-1.5||41.2||11 Oct||18.0||-1.7||3.4||13 Jun||1292.7||851.9||v high||152%|
|McArthur River Mine||33.3||-1.2||41.6||11 Oct||19.1||-0.5||4.8||19 Jun||1535.1||755.6||highest||203%|
|Ngukurr||32.9||-1.3||42.3||11 Oct||9.5||15 Jun||1437.8||774.1||v high||186%|
|Wollogorang||32.3||-1.4||40.3||11 Oct||17.9||-1.0||4.1||18 Jun||1066.5||965.3||average||110%|
|Victoria (district 14F)|
|Lajamanu||32.2||-1.3||42.6||30 Jan||16.5||-1.4||1.7||14 Jun||853.6||506.4||high||169%|
|Timber Creek||33.7||-1.2||43.6||12 Oct||20.0||-1.2||6.0||19 Jun||1450.5||958.7||highest||151%|
|Victoria River Downs||33.1||-1.3||42.9||12 Oct||18.2||-1.4||3.9||15 Jun||979.4||647.9||v high||151%|
|Wave Hill||32.3||-1.9||42.3||11 Oct||17.7||-1.2||2.8||2 Jun||872.7||698.8||high||125%|
|Barkly (district 15A)|
|Tennant Creek Airport||30.2||-1.7||41.1||27 Jan||18.4||-1.4||5.7||11 Jun||924.0||474.3||v high||195%|
|Alice Springs (district 15B)|
|Alice Springs Airport||28.5||-0.2||43.0||27 Jan||12.4||-0.8||-3.4||15 Jun||366.4||284.7||high||129%|
|Arltunga||27.6||-1.0||40.6||10 Dec||11.5||-2.0||-6.1||25 Jul||566.8||298.3||v high||190%|
|Curtin Springs||29.4||-0.2||45.5||28 Jan||-1.0||24 Jul||370.3||238.8||high||155%|
|Kulgera||28.2||-0.1||44.9||28 Jan||13.1||-0.8||-2.1||30 May||345.7||257.2||high||134%|
|Rabbit Flat||32.1||-1.6||44.1||30 Jan||15.5||-1.2||0.7||16 Jun||753.1||498.4||high||151%|
|Territory Grape Farm||30.1||-0.6||43.5||27 Jan||13.6||-0.9||-2.1||1 Jun||382.2||326.0||high||117%|
|Walungurru||31.8||46.2||28 Jan||18.3||4.7||13 Jun||368.6|
|Yulara Aero||29.1||-0.8||46.4||28 Jan||13.6||-0.4||-0.7||16 Jun||574.8||292.1||high||197%|
Notesal Climate Summary is prepared to list the main features of the weather in Northern Territory 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 8 am on Wednesday 4 January 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
the years 1800 to 2009.
They are not shown for sites with less than 10 years of record in that time, 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
(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.