Tuesday, 1 October 2024 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0
Northern Territory in September 2024
Rainfall
- Average rainfall for September was 26.7 mm across the Northern Territory, 282% above the 1961–1990 average and the 7th wettest September on record since 1900.
- Rainfall was above average across almost all of the Northern Territory and the highest on record across parts of the west.
- Many sites had their highest September daily rainfall on record between the 17th and 24th, due to unseasonable rainfall impacting the Top End and the west of the Northern Territory.
- Many sites had their highest total September rainfall on record.
- Several sites had their highest total September rainfall for at least 20 years.
Temperature
- The mean maximum temperature across the NT was 32.91 °C, 1.53 °C above the 1961–1990 average.
- Maximum temperatures were above to very much above average across the Top End and western areas of the Northern Territory and were highest on record for parts of the Top End and Carpentaria district.
- Jabiru Airport and Groote Eylandt Airport had their highest September temperature on record on the 17th, during the outbreak of unseasonable rainfall.
- Multiple sites, including Darwin Airport had their coldest September day (lowest maximum temperature) on record.
- Some sites, including Darwin Airport had their highest September mean daily maximum temperature on record.
- The mean minimum temperature across the NT was 18.31 °C, 2.41 °C above the 1961–1990 average and the 7th highest on record since 1910.
- Minimum temperatures were above to very much above average across the Northern Territory and a small region of the Lasseter district had highest on record September minimum temperatures.
- Ngayawili recorded its warmest September night (highest daily minimum temperature) on record on the 17th.
- Some sites had their highest September mean daily minimum temperature on record.
- The mean temperature across the Northern Territory was 25.61 °C, 1.97 °C above the 1961–1990 average.
- Darwin Airport and Centre Island had their highest September mean temperature on record.
Darwin Airport
- Total rainfall for Darwin Airport was 61.0 mm, which is 361% of the long-term average of 16.9 mm.
- The mean daily maximum temperature for Darwin Airport was 34.3 °C, which is 1.6 °C above the long-term average of 32.7 °C.
- The warmest day was 36.7 °C on the 10th, and the coolest day was on the 17th when the temperature reached 26.8 °C.
- The mean daily minimum temperature for Darwin Airport was 24.3 °C, which is 1.3 °C above the long-term average of 23.0 °C.
- The coldest morning was 21.2 °C on the 18th, and the warmest morning was on the 21st when the minimum temperature was 26.3 °C.
Extremes Maps Records Summaries Important notes the top
| Extremes in September 2024 | |
|---|---|
| Hottest day | 41.0 °C at Oenpelli Airport on the 29th |
| Warmest days on average |
37.5 °C at Douglas River Research Farm 37.5 °C at Oenpelli Airport |
| Coolest days on average |
28.1 °C at Curtin Springs 28.1 °C at Yulara Airport |
| Coldest day | 17.2 °C at Curtin Springs on the 8th |
| Coldest night |
3.4 °C at Arltunga on the 18th 3.4 °C at Arltunga on the 19th |
| Coolest nights on average | 11.9 °C at Arltunga |
| Warmest nights on average | 26.0 °C at McCluer Island |
| Warmest night | 27.9 °C at Charles Point on the 30th |
| Warmest on average overall |
30.2 °C at Bradshaw - Angallari Valley (Defence) 30.2 °C at Jabiru Airport 30.2 °C at Mount Bundey North (Defence) |
| Coolest on average overall | 20.1 °C at Arltunga |
| Wettest overall | 121.4 mm at Walker Creek |
| Wettest day | 75.2 mm at Nightcliff Pool on the 17th |
| Strongest wind gust | 69 km/h at Walungurru Airport on the 11th |
Extremes Maps Records Summaries Important notes the top
| Maps | |||
|---|---|---|---|
| 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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Click on a map to show it full size in a pop-up window
| Record highest September daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
||||
| Curtin Springs | 33.4 | on the 24th | 30.5 | on the 30th in 2017 | 70 | |
| Newhaven | 35.6 | on the 23rd | 33.0 | on the 22nd in 1973 | 62 | |
| Old Delamere | 49.2 | on the 22nd | 38.4 | on the 29th in 1966 | 51 | |
| Humpty Doo Collard Road | 68.0 | on the 21st | 43.0 | on the 18th in 1992 | 43 | |
| Suplejack | 40.0 | on the 23rd | 32.5 | on the 17th in 2010 | 42 | |
| Labelle Downs | 40.0 | on the 21st | 38.0 | on the 30th in 2012 | 37 | |
| Nightcliff Pool | 75.2 | on the 17th | 54.6 | on the 29th in 2022 | 37 | |
| Pine Hill | 29.0 | on the 30th | 23.1 | on the 1st in 1992 | 35 | |
| Yulara Airport | 31.6 | on the 24th | 24.8 | on the 12th in 2010 | 34 | |
| Bullo River | 57.0 | on the 22nd | 35.1 | on the 18th in 1969 | 30 | |
| CSIRO Berrimah | 41.0 | on the 17th | 27.8 | on the 17th in 2002 | 30 | |
| Darwin Hospital | 46.2 | on the 17th | 41.0 | on the 24th in 2015 | 28 | |
| Rabbit Flat | 41.6 | on the 23rd | 38.8 | on the 3rd in 2008 | 28 | |
| Bradshaw | 14.0 | on the 17th | 11.0 | on the 15th in 2001 | 25 | |
| Birrimba | 38.2 | on the 22nd | 33.4 | on the 22nd in 2020 | 22 | |
| Upper Adelaide River | 36.8 | on the 22nd | 32.6 | on the 23rd in 2008 | 21 | |
| Upper Seventeen Mile Creek | 50.0 | on the 17th | 47.2 | on the 19th in 2016 | 20 | |
| Upper Victoria River | 21.4 | on the 23rd | 21.2 | on the 27th in 2020 | 20 | |
| Record highest September total rainfall | |||||
|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
Average for September |
||
| Daly Waters Airstrip | 28.0 | 19.1 | in 1943 | 56 | 2.3 |
| Old Delamere | 69.0 | 64.6 | in 1966 | 51 | 5.5 |
| Suplejack | 80.7 | 70.3 | in 1984 | 42 | 7.7 |
| Bullo River | 58.4 | 35.1 | in 1969 | 30 | 5.8 |
| Delamere Weapons Range | 31.8 | 25.0 | in 2016 | 28 | 4.0 |
| Rabbit Flat | 66.6 | 42.2 | in 2008 | 28 | 6.8 |
| Walker Creek | 121.4 | 75.1 | in 2016 | 28 | 19.6 |
| Bradshaw | 21.8 | 12.0 | in 2020 | 25 | 2.9 |
| Middle Point | 62.4 | 48.6 | in 2020 | 24 | 16.9 |
| Birrimba | 63.4 | 33.8 | in 2020 | 22 | 7.0 |
| Upper Adelaide River | 65.8 | 54.4 | in 2010 | 21 | 12.5 |
| Highest September total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher |
Average for September |
|||
| Newhaven | 70.4 | 90.6 | in 1975* | 8.8 | |
| Lajamanu Airport | 42.6 | 49.8 | in 1964* | 5.7 | |
| Victoria River Downs | 54.0 | 68.2 | in 1979 | 4.7 | |
| McMinns Lagoon | 68.0 | 71.7 | in 1981* | 16.9 | |
| Tennant Creek Airport | 38.6 | 48.2 | in 1984 | 8.0 | |
| Pine Hill | 61.0 | 127.3 | in 1975* | 12.7 | |
| Humpty Doo Collard Road | 109.6 | 110.2 | in 1992* | 18.7 | |
| Montejinni | 20.8 | 38.2 | in 1995* | 4.9 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
| Record highest September temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Jabiru Airport | 40.4 | on the 29th | = 40.4 | on the 21st in 2022 | 47 | 36.4 |
| Groote Eylandt Airport | 36.6 | on the 30th | 36.4 | on the 25th in 2009 | 26 | 32.6 |
| Record lowest September daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Darwin Airport | 26.8 | on the 17th | 27.6 | on the 29th in 1986 | 84 | 32.7 |
| Victoria River Downs | 24.4 | on the 17th | 24.6 | on the 9th in 1974 | 59 | 35.8 |
| Douglas River Research Farm | 27.1 | on the 17th | 29.0 | on the 23rd in 1998 | 36 | 36.9 |
| Batchelor Airport | 26.2 | on the 17th | 30.0 | on the 4th in 2010 | 29 | 36.1 |
| Delamere Weapons Range | 27.3 | on the 17th | 27.6 | on the 11th in 2011 | 28 | 35.8 |
| Bradshaw | 26.4 | on the 17th | 30.7 | on the 10th in 2011 | 26 | 37.5 |
| Port Keats Airport | 26.6 | on the 17th | 30.1 | on the 4th in 2019 | 26 | 33.6 |
| Middle Point | 27.1 | on the 17th | 31.3 | on the 19th in 2016 | 24 | 36.6 |
| Record highest September mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| Darwin Airport | 34.3 | 34.1 | in 2021 | 83 | 32.7 |
| Pirlangimpi Airport | 35.6 | 35.5 | in 2014 | 41 | 33.5 |
| Groote Eylandt Airport | 33.5 | 33.3 | in 2020 | 25 | 32.6 |
| Maningrida Airport | 33.2 | = 33.2 | in 2022 | 20 | 32.4 |
| Record highest September daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Ngayawili | 25.5 | on the 17th | 25.4 | on the 19th in 2016 | 24 | 20.7 |
| Record highest September mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| Curtin Springs | 13.8 | 13.6 | in 2005 | 59 | 10.2 |
| Centre Island | 24.3 | 24.1 | in 1992 | 48 | 22.3 |
| Yulara Airport | 13.7 | 13.4 | in 1997 | 36 | 10.8 |
| McCluer Island | 26.0 | = 26.0 | in 2016 | 23 | 24.8 |
| Record highest September mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for September |
||
| Darwin Airport | 29.3 | = 29.3 | in 2022 | 83 | 27.9 |
| Centre Island | 28.1 | 28.0 | in 1992 | 48 | 26.4 |
Extremes Maps Records Summaries Important notes the top
| Summary statistics for September 2024 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for September 2024 |
Diff from average |
Highest for September 2024 |
Mean for September 2024 |
Diff from average |
Lowest for September 2024 |
Total for September 2024 |
Average for September |
Rank of September 2024 |
Fraction of September average |
|||
| Darwin-Daly (district 14GA) | ||||||||||||
| Batchelor Airport | 35.9 | -0.2 | 39.4 | 3rd | 21.7 | +1.1 | 18.0 | 18th | 29.0 | 10.6 | high | 274% |
| Central Arnhem Plateau | 34.4 | +0.4 | 37.5 | 29th | 20.0 | +0.8 | 16.2 | 11th | 4.0 | 6.0 | average | 67% |
| Charles Point | 31.8 | +0.8 | 36.8 | 13th | 25.2 | +1.5 | 20.7 | 18th | 38.4 | 29.4 | average | 131% |
| Croker Island Airport | 33.4 | +1.0 | 36.8 | 22nd | 23.4 | +0.3 | 20.6 | 1st | 2.6 | 1.7 | high | 153% |
| Darwin Airport | 34.3 | +1.6 | 36.7 | 10th | 24.3 | +1.3 | 21.2 | 18th | 61.0 | 16.9 | v high | 361% |
| Delamere Weapons Range | 35.6 | -0.2 | 38.6 | 29th | 21.4 | +0.6 | 16.1 | 17th | 31.8 | 4.0 | highest | 795% |
| Douglas River Research Farm | 37.5 | +0.6 | 40.6 | 29th | 21.5 | +2.8 | 17.0 | 15th | 31.0 | 5.6 | v high | 554% |
| East Point | 33.6 | 37.7 | 10th | 24.5 | 21.8 | 18th | 66.8 | |||||
| Jabiru Airport | 37.2 | +0.8 | 40.4 | 29th | 23.1 | +1.4 | 20.4 | 9th | 31.8 | 12.5 | high | 254% |
| Kangaroo Flats (Defence) | 36.6 | 39.6 | 3rd | 23.2 | 19.0 | 18th | 92.0 | |||||
| Knuckey Lagoon | 35.2 | 37.9 | 30th | 22.7 | 19.9 | 3rd | 30.4 | |||||
| McCluer Island | 29.7 | +0.5 | 31.7 | 29th | 26.0 | +1.2 | 24.6 | 14th | 4.6 | 2.1 | high | 219% |
| Middle Point | 36.2 | -0.4 | 39.2 | 29th | 21.9 | +2.8 | 18.3 | 3rd | 62.4 | 16.9 | highest | 369% |
| Mount Bundey North (Defence) | 37.0 | 40.5 | 29th | 23.4 | 21.4 | 12th | 19.2 | |||||
| Mount Bundey South (Defence) | 36.8 | 39.8 | 3rd | 22.9 | 19.3 | 14th | 43.0 | |||||
| Murganella Airstrip | 33.3 | +0.3 | 37.1 | 22nd | 21.3 | +1.8 | 16.6 | 14th | 3.2 | 20.6 | average | 16% |
| Noonamah Airstrip | 36.3 | 0.0 | 39.2 | 3rd | 22.9 | +1.9 | 19.2 | 3rd | 104.8 | 25.1 | v high | 418% |
| Oenpelli Airport | 37.5 | +0.6 | 41.0 | 29th | 22.0 | +1.4 | 17.4 | 14th | 12.8 | 17.2 | high | 74% |
| Pirlangimpi Airport | 35.6 | +2.1 | 38.1 | 30th | 22.8 | +1.4 | 20.8 | 14th | 20.2 | 28.3 | average | 71% |
| Point Fawcett | 32.9 | +0.6 | 35.3 | 30th | 22.2 | +1.1 | 19.1 | 3rd | 27.6 | 10.7 | high | 258% |
| Port Keats Airport | 34.0 | +0.4 | 37.4 | 29th | 22.9 | +1.9 | 19.3 | 15th | 29.6 | 8.3 | high | 357% |
| Tindal RAAF | 36.4 | +0.4 | 39.9 | 30th | 21.4 | +1.5 | 17.5 | 2nd | 19.6 | 8.4 | high | 233% |
| Arnhem (district 14BC) | ||||||||||||
| Cape Wessel | 32.2 | +0.3 | 34.1 | 27th | 25.0 | +0.8 | 22.9 | 10th | 13.2 | 6.8 | high | 194% |
| Gove Airport | 31.3 | 34.2 | 28th | 22.4 | 19.9 | 14th | 10.2 | |||||
| Groote Eylandt Airport | 33.5 | +0.9 | 36.6 | 30th | 20.0 | +2.1 | 16.6 | 22nd | 1.8 | 7.6 | average | 24% |
| Maningrida Airport | 33.2 | +0.8 | 36.8 | 28th | 22.0 | +1.5 | 18.6 | 12th | 2.8 | 7.3 | high | 38% |
| Milingimbi Airport | 32.7 | +0.7 | 35.4 | 28th | 22.7 | +1.3 | 20.0 | 9th | 1.0 | 7.5 | high | 13% |
| Ngayawili | 32.7 | +0.7 | 34.7 | 27th | 22.2 | +1.5 | 20.2 | 1st | 0.6 | 5.6 | average | 11% |
| Warruwi Airport | 31.7 | +0.8 | 34.8 | 28th | 25.1 | +1.4 | 22.9 | 9th | 0.2 | 2.7 | high | 7% |
| Roper-Mcarthur (district 14DE) | ||||||||||||
| Borroloola Airport | 36.1 | +0.9 | 39.8 | 30th | 19.0 | +1.4 | 14.3 | 30th | 11.6 | 3.4 | high | 341% |
| Bulman | 36.6 | +0.2 | 39.6 | 29th | 19.5 | +1.3 | 15.0 | 30th | 4.2 | 12.4 | high | 34% |
| Centre Island | 31.9 | +1.3 | 35.5 | 30th | 24.3 | +2.0 | 22.8 | 8th | 12.2 | 2.0 | v high | 610% |
| Daly Waters Airstrip | 36.1 | +1.1 | 38.9 | 3rd | 17.5 | +0.7 | 11.9 | 4th | 28.0 | 2.3 | highest | 1217% |
| Ngukurr Airport | 36.5 | +0.1 | 39.6 | 30th | 21.5 | +2.6 | 18.3 | 30th | 11.4 | 5.7 | high | 200% |
| Victoria (district 14F) | ||||||||||||
| Bradshaw | 36.8 | -0.7 | 40.5 | 30th | 22.8 | +0.7 | 16.5 | 17th | 21.8 | 2.9 | highest | 752% |
| Bradshaw - Angallari Valley (Defence) | 37.1 | 40.2 | 30th | 23.5 | 16.9 | 17th | 40.8 | |||||
| Bradshaw - Koolendong Valley (Defence) | 37.0 | 40.9 | 3rd | 20.0 | 13.2 | 15th | 46.6 | |||||
| Lajamanu Airport | 34.1 | -0.7 | 37.5 | 29th | 18.6 | +1.8 | 13.7 | 5th | 42.6 | 5.7 | v high | 747% |
| Victoria River Downs | 36.4 | +0.6 | 39.3 | 3rd | 19.9 | +1.6 | 13.9 | 15th | 54.0 | 4.7 | v high | 1149% |
| Barkly (district 15A) | ||||||||||||
| Elliott | 34.7 | -0.6 | 38.0 | 29th | 20.7 | +3.1 | 14.0 | 15th | 7.4 | 5.4 | high | 137% |
| Tennant Creek Airport | 32.3 | +0.5 | 36.9 | 2nd | 19.7 | +1.2 | 13.6 | 17th | 38.6 | 8.0 | v high | 483% |
| Alice Springs (district 15B) | ||||||||||||
| Alice Springs Airport | 28.6 | +1.1 | 35.4 | 1st | 12.0 | +1.7 | 4.4 | 14th | 4.6 | 8.7 | average | 53% |
| Arltunga | 28.2 | +0.3 | 34.1 | 1st | 11.9 | +1.8 | 3.4 | 18th | 11.8 | 7.7 | high | 153% |
| Curtin Springs | 28.1 | +0.1 | 36.0 | 5th | 13.8 | +3.6 | 8.9 | 15th | 56.4 | 10.4 | v high | 542% |
| Jervois | 31.2 | +1.4 | 36.7 | 6th | 14.6 | +3.2 | 7.4 | 28th | ||||
| Rabbit Flat | 33.3 | -1.2 | 37.5 | 1st | 16.2 | +2.1 | 9.3 | 18th | 66.6 | 6.8 | highest | 979% |
| Territory Grape Farm | 30.3 | -0.1 | 35.6 | 2nd | 13.6 | +1.8 | 8.6 | 14th | 33.8 | 10.9 | v high | 310% |
| Walungurru Airport | 31.4 | -0.4 | 36.9 | 1st | 18.4 | +1.5 | 13.7 | 19th | 47.2 | 8.5 | v high | 555% |
| Watarrka | 29.4 | -0.2 | 36.3 | 1st | 14.3 | +1.2 | 3.5 | 28th | 29.1 | 10.0 | v high | 291% |
| Yulara Airport | 28.1 | -0.8 | 36.0 | 5th | 13.7 | +2.9 | 8.5 | 18th | 50.0 | 9.6 | v high | 521% |
Extremes Maps Records Summaries Important notes the top
Notes
The Monthly climate summary, usually published in the first week of the following 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.
This statement has been prepared based on information available at 11 am on Tuesday 1 October 2024. 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.
Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
