Tuesday, 30 October 2018 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0
Northern Territory in September 2018: Very warm in the north; dry throughout
Daytime temperatures were generally average to well above average across the Northern Territory in September; in the northern half, tempartures were very much above average. Apart from a few isolated areas, rainfall was well below average throughout the Territory.
Near-record daytime temperatures for the Top End
- Averaged across the Top End, the mean daily maximum temperature was the second highest on record, behind only September 2017
- Across the entire NT, the mean maximum temperature was 1.38 °C above the long-term average for September. Maximum temperatures were well above average in the northern half of the Territory and near-average in the southern half.
- Overnight temperatures were near average; overall the mean daily minimum temperature was 0.03 °C above the long-term average across the Territory. Minimum temperatures were generally near to above average in the northern half and below average in the southern half of the NT.
Generally dry, but unseasonable rain across northwest late in month
- Averaged across the Northern Territory, rainfall during September was 85% below average
- In the final week of September some unseasonable rainfall was observed across the western Top End, including a record September daily rainfall at Port Keats on the 26th
Darwin Airport
- Total rainfall for Darwin Airport was 33.0 mm, which is 209% of the long-term average of 15.8 mm
- The mean daily maximum temperature for Darwin Airport was 33.6 °C, which is 1.0 °C above the long-term average of 32.6 °C. The warmest day was 36.0 °C on the 23rd, and the coolest day was on the 1st when the temperature reached 31.1 °C
- The mean daily minimum temperature for Darwin Airport was 22.8 °C, which is 0.2 °C below the long-term average of 23.0 °C. The coldest morning was 21.4 °C on the 1st, and the warmest morning was on the 28th when the minimum temperature was 24.3 °C
Alice Springs Airport
- Total rainfall for Alice Springs Airport was 1.2 mm, which is 14% of the long-term average of 8.5 mm
- The mean daily maximum temperature for Alice Springs Airport was 27.7 °C, which is 0.4 °C above the long-term average of 27.3 °C. The warmest day was 35.2 °C on the 28th, and the coolest day was on the 21st when the temperature reached 17.9 °C
- The mean daily minimum temperature for Alice Springs Airport was 8.7 °C, which is 1.6 °C below the long-term average of 10.3 °C, and lowest since 2015. The coldest morning was 2.5 °C on the 17st, and the warmest morning was on the 15th when the minimum temperature was 15.9 °C
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Extremes Maps Records Summaries Important notes the top
Extremes in September 2018 | |
---|---|
Hottest day | 39.7 °C at Bradshaw on the 15th |
Warmest days on average |
38.0 °C at Bradshaw 38.0 °C at Bradshaw - Angallari Valley (Defence) 38.0 °C at Douglas River Research Farm |
Coolest days on average | 27.0 °C at Arltunga |
Coldest day | 17.7 °C at Arltunga on the 19th |
Coldest night | 0.0 °C at Arltunga on the 17th |
Coolest nights on average | 7.5 °C at Arltunga |
Warmest nights on average | 25.1 °C at McCluer Island |
Warmest night | 27.3 °C at Bradshaw on the 25th |
Warmest on average overall | 30.4 °C at Bradshaw |
Coolest on average overall | 18.2 °C at Alice Springs Airport |
Wettest overall | 43.6 mm at Port Keats Airport |
Wettest day | 43.4 mm at Port Keats Airport on the 26th |
Strongest wind gust | 70 km/h at Centre Island on the 20th |
Extremes Maps Records Summaries Important notes the top
Maps | |||
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Observed | Anomaly | Decile rank | |
Total rainfall |
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Mean daily maximum temperatures |
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Mean daily minimum temperatures |
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Record highest September daily rainfall | ||||||
---|---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
||||
Port Keats Airport | 43.4 | on the 26th | 12.6 | on the 29th in 2003 | 20 |
Record highest September total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for September |
||
Port Keats Airport | 43.6 | 15.8 | in 2016 | 20 | 5.1 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for September 2018 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for September 2018 |
Diff from average |
Highest for September 2018 |
Mean for September 2018 |
Diff from average |
Lowest for September 2018 |
Total for September 2018 |
Average for September |
Rank of September 2018 |
Fraction of September average |
|||
Darwin-Daly (district 14GA) | ||||||||||||
Batchelor Airport | 36.6 | +0.6 | 37.9 | 23rd | 20.2 | -0.4 | 18.3 | 12th | 0 | 8.1 | lowest | 0% |
Black Point | 32.5 | +0.8 | 34.0 | 17th | 23.2 | +0.2 | 20.6 | 11th | 0 | 1.6 | lowest | 0% |
Central Arnhem Plateau | 34.3 | +0.4 | 35.9 | 3rd | 18.4 | -0.7 | 15.8 | 11th | 0 | 5.4 | v low | 0% |
Channel Point | 31.3 | +0.2 | 36.0 | 30th | 22.2 | +0.6 | 19.5 | 22nd | 30.0 | 10.5 | v high | 286% |
Charles Point | 30.5 | 32.5 | 18th | 23.8 | 22.2 | 4th | 15.4 | |||||
Darwin Airport | 33.6 | +1.0 | 36.0 | 23rd | 22.9 | -0.1 | 21.4 | 1st | 33.0 | 15.8 | high | 209% |
Delamere Weapons Range | 36.3 | +0.5 | 38.0 | 8th | 20.8 | +0.1 | 14.5 | 12th | 0 | 3.6 | lowest | 0% |
Douglas River Research Farm | 38.0 | +1.2 | 39.3 | 23rd | 18.6 | 0.0 | 11.9 | 12th | 0.2 | 5.2 | average | 4% |
Dum In Mirrie Airstrip | 32.1 | +0.3 | 35.6 | 17th | 22.5 | -0.5 | 20.3 | 1st | 19.6 | 13.6 | high | 144% |
Jabiru Airport | 37.1 | +0.8 | 38.9 | 3rd | 21.2 | -0.4 | 19.1 | 11th | 0 | 12.0 | lowest | 0% |
Kangaroo Flats (Defence) | 37.1 | 38.4 | 29th | 21.6 | 19.8 | 1st | 0 | |||||
McCluer Island | 29.0 | -0.2 | 29.9 | 25th | 25.1 | +0.3 | 23.3 | 7th | 0 | 1.4 | lowest | 0% |
Middle Point | 37.3 | +0.8 | 38.9 | 23rd | 18.8 | -0.2 | 15.8 | 30th | 3.4 | 16.1 | low | 21% |
Mount Bundey North (Defence) | 37.2 | 38.6 | 28th | 22.3 | 21.0 | 1st | 0 | |||||
Mount Bundey South (Defence) | 37.4 | 38.6 | 23rd | 21.0 | 17.7 | 30th | 0 | |||||
Murganella Airstrip | 32.7 | 34.5 | 18th | 19.0 | 14.6 | 11th | 0 | |||||
Noonamah Airstrip | 36.5 | 38.5 | 23rd | 21.2 | 18.9 | 30th | 0.4 | |||||
Oenpelli Airport | 37.3 | 39.1 | 18th | 19.5 | 17.1 | 18th | 0 | |||||
Pirlangimpi Airport | 34.2 | +0.8 | 36.2 | 18th | 21.4 | +0.1 | 19.8 | 6th | 7.4 | 27.6 | average | 27% |
Point Fawcett | 33.0 | +0.9 | 35.1 | 22nd | 20.4 | -0.8 | 17.9 | 1st | 0 | 9.2 | lowest | 0% |
Point Stuart | 33.8 | 35.8 | 17th | 21.9 | 19.2 | 19th | 0 | 10.2 | v low | 0% | ||
Port Keats Airport | 33.3 | -0.3 | 38.0 | 22nd | 20.7 | -0.2 | 13.4 | 12th | 43.6 | 5.1 | highest | 855% |
Tindal RAAF | 36.9 | +1.0 | 38.5 | 19th | 18.4 | -1.5 | 11.0 | 11th | 0 | 8.6 | lowest | 0% |
Arnhem (district 14BC) | ||||||||||||
Cape Wessel | 32.5 | 33.3 | 10th | 24.2 | 20.6 | 6th | 1.4 | 6.4 | average | 22% | ||
Gove Airport | 31.2 | +0.8 | 32.9 | 21st | 19.6 | -0.1 | 16.7 | 6th | 0 | 6.6 | lowest | 0% |
Groote Eylandt Airport | 33.0 | +0.4 | 35.2 | 6th | 17.0 | -0.9 | 13.0 | 11th | 2.8 | 7.9 | average | 35% |
Maningrida Airport | 32.2 | -0.1 | 35.7 | 22nd | 19.9 | -0.5 | 16.6 | 11th | 0 | 7.0 | v low | 0% |
Milingimbi Airport | 32.6 | +0.7 | 34.9 | 22nd | 21.0 | -0.4 | 17.4 | 11th | 0 | 4.1 | v low | 0% |
Ngayawili | 33.0 | +1.1 | 34.8 | 22nd | 20.4 | -0.2 | 18.4 | 6th | 0 | 6.6 | v low | 0% |
Warruwi Airport | 31.3 | +0.4 | 33.1 | 6th | 24.1 | +0.5 | 20.6 | 11th | 0.2 | 1.4 | high | 14% |
Roper-Mcarthur (district 14DE) | ||||||||||||
Borroloola Airport | 35.8 | +0.7 | 38.2 | 15th | 15.8 | -1.8 | 11.7 | 11th | 0 | 3.4 | lowest | 0% |
Bulman | 36.2 | -0.1 | 37.9 | 18th | 17.9 | +0.1 | 14.5 | 18th | 0 | 16.8 | v low | 0% |
Centre Island | 31.0 | +0.4 | 33.9 | 15th | 22.0 | -0.2 | 19.9 | 11th | 0.2 | 1.9 | low | 11% |
Daly Waters Airstrip | 36.0 | +1.1 | 37.8 | 7th | 14.1 | -2.7 | 6.0 | 11th | 0 | 1.9 | lowest | 0% |
McArthur River Mine Airport | 36.4 | +1.0 | 38.1 | 18th | 17.0 | -0.3 | 11.9 | 11th | 0 | 4.9 | lowest | 0% |
Ngukurr Airport | 35.8 | 38.0 | 7th | 18.4 | 12.2 | 11th | 0 | |||||
Victoria (district 14F) | ||||||||||||
Bradshaw | 38.0 | +0.5 | 39.7 | 15th | 22.9 | +0.9 | 16.8 | 11th | 0 | 1.9 | v low | 0% |
Bradshaw - Angallari Valley (Defence) | 38.0 | 39.3 | 15th | 21.9 | 14.2 | 12th | 0 | |||||
Lajamanu Airport | 36.1 | +1.4 | 38.4 | 15th | 17.2 | +0.6 | 10.3 | 12th | 0 | 4.5 | lowest | 0% |
Victoria River Downs | 37.1 | +1.4 | 39.0 | 30th | 17.9 | -0.2 | 8.7 | 12th | 0 | 4.3 | lowest | 0% |
Wave Hill | 36.1 | +1.0 | 38.0 | 30th | 18.1 | +0.2 | 9.1 | 11th | 0 | 12.9 | lowest | 0% |
Barkly (district 15A) | ||||||||||||
Brunette Downs | 35.4 | +1.8 | 37.5 | 30th | 16.4 | -0.2 | 12.0 | 11th | 0 | 5.7 | lowest | 0% |
Elliott | 35.6 | +0.2 | 38.6 | 7th | 17.4 | 0.0 | 10.9 | 12th | 0 | 5.6 | lowest | 0% |
Tennant Creek Airport | 32.9 | +1.2 | 36.5 | 30th | 18.5 | +0.1 | 13.1 | 11th | 0 | 7.5 | lowest | 0% |
Alice Springs (district 15B) | ||||||||||||
Alice Springs Airport | 27.7 | +0.4 | 35.2 | 28th | 8.7 | -1.6 | 2.5 | 17th | 1.2 | 8.5 | average | 14% |
Arltunga | 27.0 | -0.6 | 33.9 | 18th | 7.5 | -2.7 | 0.0 | 17th | 0 | 7.6 | lowest | 0% |
Curtin Springs | 28.3 | +0.4 | 35.0 | 14th | 10.3 | +0.2 | 5.6 | 20th | 0 | 10.0 | lowest | 0% |
Jervois | 29.4 | -0.3 | 35.6 | 28th | 10.2 | -1.1 | 1.2 | 17th | 0 | 10.6 | lowest | 0% |
Rabbit Flat | 34.5 | +0.1 | 38.1 | 30th | 13.4 | -0.8 | 7.7 | 1st | 0 | 5.0 | lowest | 0% |
Territory Grape Farm | 30.1 | -0.2 | 34.9 | 28th | 10.0 | -1.8 | 3.9 | 11th | 0 | 9.9 | lowest | 0% |
Walungurru Airport | 31.6 | -0.2 | 38.0 | 28th | 17.2 | +0.5 | 12.7 | 7th | 6.8 | 7.4 | high | 92% |
Yulara Airport | 28.9 | +0.2 | 35.8 | 28th | 10.5 | -0.2 | 5.2 | 7th | 2.8 | 8.8 | average | 32% |
Extremes Maps Records Summaries Important notes the top
Notes
The Monthly climate summary, generally published on the first working day of each month, lists 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.
This statement has been prepared based on information available at 1 pm on Tuesday 30 October 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.
Averages for individual sites are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median
is sometimes more representative than the
mean
of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
decile ranking
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a
percentage of the long-term mean.
Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence