Monday, 3 May 2021 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0
Northern Territory in April 2021: very dry ending to the wet season
Apart from a small section of the north-west Top End, the Northern Territory had less than average rainfall in April 2021. Territory-wide, daytime temperatures were above average apart from the far south of the Territory, while night-time temperatures were below-average across most parts.
Very dry month
- Nearly all of the Northern Territory was drier than average during April; Territory-wide, rainfall was 67% below the long-term average.
- While monsoonal conditions developed across northern Australia duirng April, the focus remained away from the Territory, predominantly affecting Western Australia; rainfall for the Territory was associated with isolated shower and thunderstorm activity.
- For the year-to-date, rainfall for the Northern Territory is 4% below the long-term average.
Mild days, cool nights
- Overall, temperatures did not vary too much from long-term averages during the month; the mean temperature was 0.17 °C below average.
- Daytime temperatures were near or marginally above average, apart from the far south: overall, the mean maximum temperature was 0.58 °C above the long-term average.
- The mean minimum temperature was 0.93 °C below the long-term average, with most of the Territory observing temperatures up to 2 °C below average; a small region around the Carpentaria coast saw temperatures between 1 and 2 °C above average.
- There were several sites with minimum temperature records, including for warmest April night on record, lowest April temperature on record and lowest April mean daily minimum temperature for at least 20 years.
- For the year-to-date, the mean maximum temperature across the Northern Territory is 0.15 °C above the long-term average, and the mean minimum temperature is 0.13 °C above the long-term average.
Darwin Airport
- Total rainfall for Darwin Airport was 100.4 mm, which is 99% of the long-term average of 101.7 mm
- The mean daily maximum temperature for Darwin Airport was 33.0 °C, which is 0.2 °C above the long-term average of 32.8 °C
- The warmest day was 35.9 °C on the 22nd, and the coolest day was on the 4th when the temperature reached 29.3 °C
- The mean daily minimum temperature for Darwin Airport was 24.1 °C, which is 0.1 °C above the long-term average of 24.0 °C
- The coldest morning was 18.9 °C on the 25th (the earliest date with a sub-20 °C temperature since 2017), and the warmest morning was on the 8th when the minimum temperature was 26.4 °C
Alice Springs Airport
- Alice Springs Airport recorded no rainfall for the month, compared to the long-term average of 16.2 mm
- The mean daily maximum temperature for Alice Springs Airport was 27.7 °C, which is 0.7 °C below the long-term average of 28.4 °C
- The warmest day was 33.5 °C on the 9th, and the coolest day was on the 16th when the temperature reached 23.7 °C
- The mean daily minimum temperature for Alice Springs Airport was 9.5 °C, which is 3.2 °C below the long-term average of 12.7 °C
- The coldest morning was 3.9 °C on the 19th, and the warmest morning was on the 16th when the minimum temperature was 15.6 °C
- Rainfall for the year-to-date at Alice Springs Airport is 130.3 mm, which is just below the long-term average of 131.3 mm. For the year-to-date, the mean maximum temperature at Alice Springs Airport is 32.6 °C, which is 0.6 °C below the long-term average, and the mean minimum temperature is 17.5 °C, which is 0.6 °C below the long-term average
Further information
- Media
- media@bom.gov.au (03) 9669 4057
Extremes Maps Records Summaries Important notes the top
Extremes in April 2021 | |
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Hottest day |
39.5 °C at Bradshaw - Angallari Valley (Defence) on the 10th 39.5 °C at Bradshaw on the 11th |
Warmest days on average | 36.5 °C at Bradshaw |
Coolest days on average | 27.7 °C at Alice Springs Airport |
Coldest day | 19.5 °C at Yulara Airport on the 15th |
Coldest night | 3.9 °C at Alice Springs Airport on the 19th |
Coolest nights on average | 9.5 °C at Alice Springs Airport |
Warmest nights on average | 25.8 °C at McCluer Island |
Warmest night | 29.0 °C at Channel Point on the 9th |
Warmest on average overall | 29.6 °C at Jabiru Airport |
Coolest on average overall | 18.6 °C at Alice Springs Airport |
Wettest overall | 357.2 mm at Cape Wessel |
Wettest day | 87.6 mm at Cape Wessel on the 2nd |
Strongest wind gust | 74 km/h at McCluer Island on the 12th |
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 April daily minimum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for April |
|||
Channel Point | 29.0 | on the 9th | 28.9 | on the 5th in 2010 | 27 | 23.5 |
Record lowest April temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for April |
|||
Black Point | 20.3 | on the 25th | 20.6 | on the 30th in 2012 | 29 | 25.0 |
Channel Point | 15.5 | on the 25th | 16.5 | on the 30th in 2012 | 27 | 23.5 |
Rabbit Flat | 6.4 | on the 19th | 7.0 | on the 30th in 2004 | 25 | 17.0 |
Dum In Mirrie Airstrip | 16.3 | on the 25th | 18.0 | on the 30th in 2012 | 23 | 24.4 |
Lowest April mean daily minimum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for April |
|||
Alice Springs Airport | 9.5 | 8.9 | in 2001 | 12.7 | |
Territory Grape Farm | 11.6 | 11.4 | in 2001 | 14.7 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for April 2021 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for April 2021 |
Diff from average |
Highest for April 2021 |
Mean for April 2021 |
Diff from average |
Lowest for April 2021 |
Total for April 2021 |
Average for April |
Rank of April 2021 |
Fraction of April average |
|||
Darwin-Daly (district 14GA) | ||||||||||||
Batchelor Airport | 33.7 | -0.1 | 35.8 | 22nd | 21.7 | -0.1 | 13.2 | 25th | 32.0 | 86.0 | average | 37% |
Black Point | 32.2 | +0.4 | 33.8 | 7th | 24.6 | -0.4 | 20.3 | 25th | 95.8 | 111.3 | average | 86% |
Central Arnhem Plateau | 32.7 | +0.2 | 35.4 | 11th | 21.3 | -0.3 | 15.3 | 25th | 25.0 | 65.0 | average | 38% |
Channel Point | 32.5 | 0.0 | 34.7 | 28th | 23.2 | -0.3 | 15.5 | 25th | 15.6 | 101.4 | v low | 15% |
Charles Point | 32.6 | 34.3 | 22nd | 24.6 | 21.6 | 25th | 79.4 | |||||
Croker Island Airport | 32.5 | 34.1 | 22nd | 24.4 | 21.2 | 25th | 184.8 | |||||
Darwin Airport | 33.0 | +0.2 | 35.9 | 22nd | 24.1 | +0.1 | 18.9 | 25th | 100.4 | 101.7 | average | 99% |
Delamere Weapons Range | 34.5 | +0.1 | 37.5 | 9th | 20.7 | -0.5 | 14.1 | 14th | 0 | 16.4 | lowest | 0% |
Douglas River Research Farm | 35.4 | +0.7 | 37.6 | 22nd | 19.9 | -0.7 | 11.5 | 25th | 2.6 | 49.2 | low | 5% |
Dum In Mirrie Airstrip | 33.0 | 0.0 | 34.6 | 24th | 23.9 | -0.5 | 16.3 | 25th | 94.4 | 98.1 | average | 96% |
Jabiru Airport | 35.2 | +0.6 | 37.1 | 22nd | 24.1 | +0.5 | 18.9 | 25th | 40.0 | 89.4 | average | 45% |
Kangaroo Flats (Defence) | 34.8 | 37.3 | 10th | 22.9 | 15.9 | 25th | 99.4 | |||||
McCluer Island | 31.0 | +0.1 | 32.9 | 24th | 25.8 | -0.4 | 22.4 | 12th | 205.8 | 151.0 | high | 136% |
Middle Point | 33.7 | -0.5 | 36.2 | 22nd | 22.4 | 0.0 | 14.4 | 25th | 71.0 | 95.9 | average | 74% |
Mount Bundey North (Defence) | 34.5 | 36.4 | 22nd | 22.9 | 19.3 | 25th | 120.4 | |||||
Mount Bundey South (Defence) | 34.9 | 36.8 | 22nd | 21.9 | 13.7 | 25th | 73.4 | |||||
Murganella Airstrip | 33.5 | 35.8 | 11th | 22.4 | 14.9 | 25th | 124.8 | |||||
Noonamah Airstrip | 34.4 | 36.9 | 22nd | 22.7 | 14.8 | 25th | 71.4 | |||||
Oenpelli Airport | 34.9 | 37.5 | 22nd | 23.5 | 17.5 | 25th | 105.2 | |||||
Pirlangimpi Airport | 32.7 | -0.2 | 34.6 | 23rd | 23.1 | -0.1 | 16.2 | 25th | 137.4 | 157.6 | average | 87% |
Point Fawcett | 32.3 | -0.1 | 33.8 | 30th | 23.3 | -0.2 | 18.0 | 25th | 94.0 | 132.9 | average | 71% |
Point Stuart | 33.1 | 34.4 | 22nd | 23.1 | 16.4 | 25th | 66.8 | 123.8 | average | 54% | ||
Port Keats Airport | 34.4 | 0.0 | 36.7 | 22nd | 22.2 | -0.4 | 17.0 | 25th | 46.8 | 80.1 | low | 58% |
Tindal RAAF | 34.6 | +0.5 | 37.2 | 10th | 20.0 | -0.6 | 13.9 | 25th | 0.2 | 36.7 | low | 1% |
Arnhem (district 14BC) | ||||||||||||
Cape Wessel | 32.0 | 33.5 | 18th | 25.2 | 22.0 | 8th | 357.2 | 167.4 | v high | 213% | ||
Gove Airport | 31.5 | +0.5 | 33.2 | 12th | 23.9 | +0.6 | 20.3 | 7th | 126.6 | 219.7 | average | 58% |
Groote Eylandt Airport | 31.9 | -0.6 | 33.6 | 20th | 21.4 | -0.5 | 18.2 | 14th | 131.8 | 148.6 | average | 89% |
Maningrida Airport | 33.0 | +0.5 | 34.8 | 23rd | 23.2 | -0.2 | 18.7 | 25th | 148.4 | 134.6 | average | 110% |
Milingimbi Airport | 33.4 | +1.0 | 34.9 | 22nd | 23.8 | -0.2 | 21.6 | 25th | 46.4 | 121.4 | low | 38% |
Ngayawili | 32.1 | +0.2 | 34.2 | 22nd | 23.5 | -0.3 | 21.1 | 7th | 51.6 | 148.1 | low | 35% |
Warruwi Airport | 32.4 | +0.8 | 34.5 | 22nd | 25.2 | +0.1 | 23.3 | 12th | 42.6 | 115.2 | average | 37% |
Roper-Mcarthur (district 14DE) | ||||||||||||
Borroloola Airport | 34.8 | +0.6 | 37.3 | 10th | 18.9 | -1.4 | 12.6 | 24th | 22.4 | 58.1 | average | 39% |
Bulman | 34.3 | +0.1 | 36.6 | 21st | 20.9 | 0.0 | 15.9 | 25th | 37.8 | 62.4 | average | 61% |
Centre Island | 32.7 | +0.5 | 34.7 | 11th | 25.5 | +0.1 | 23.3 | 24th | 9.8 | 89.3 | low | 11% |
Daly Waters Airstrip | 34.7 | +0.7 | 37.0 | 9th | 18.5 | -1.1 | 11.6 | 14th | 2.8 | 20.7 | average | 14% |
McArthur River Mine Airport | 35.0 | +0.1 | 37.6 | 7th | 20.3 | -0.5 | 14.5 | 13th | 0.6 | 31.9 | low | 2% |
Ngukurr Airport | 34.4 | 36.8 | 10th | 20.7 | 13.9 | 24th | 43.6 | |||||
Victoria (district 14F) | ||||||||||||
Bradshaw | 36.5 | +0.3 | 39.5 | 11th | 21.9 | -0.6 | 14.0 | 25th | 1.6 | 21.3 | average | 8% |
Bradshaw - Angallari Valley (Defence) | 36.3 | 39.5 | 10th | 21.9 | 14.0 | 25th | 0 | |||||
Bradshaw - Koolendong Valley (Defence) | 36.0 | 38.9 | 11th | 18.3 | 9.2 | 25th | 6.2 | |||||
Lajamanu Airport | 33.3 | -0.7 | 37.2 | 10th | 17.4 | -0.9 | 11.8 | 19th | 0 | 14.5 | lowest | 0% |
Victoria River Downs | 35.5 | +0.8 | 38.5 | 10th | 18.6 | -1.3 | 12.1 | 25th | 0.2 | 22.4 | average | 1% |
Wave Hill | 35.0 | +0.5 | 37.9 | 10th | 17.8 | -1.2 | 12.1 | 25th | 0 | 16.6 | lowest | 0% |
Barkly (district 15A) | ||||||||||||
Elliott | 34.9 | +0.3 | 38.8 | 10th | 19.7 | 0.0 | 13.8 | 14th | 0.4 | 20.5 | average | 2% |
Tennant Creek Airport | 33.2 | +1.3 | 37.6 | 10th | 20.6 | +0.1 | 16.2 | 13th | 0 | 15.5 | lowest | 0% |
Alice Springs (district 15B) | ||||||||||||
Alice Springs Airport | 27.7 | -0.7 | 33.5 | 9th | 9.5 | -3.2 | 3.9 | 19th | 0 | 16.2 | lowest | 0% |
Curtin Springs | 28.1 | -1.2 | 35.8 | 9th | 12.4 | -1.2 | 7.2 | 20th | 1.2 | 14.8 | average | 8% |
Jervois | 30.4 | -0.2 | 35.7 | 9th | 13.2 | -1.3 | 7.5 | 13th | 0 | 15.4 | lowest | 0% |
Rabbit Flat | 33.6 | -0.7 | 37.8 | 10th | 14.2 | -2.8 | 6.4 | 19th | 0 | 17.8 | lowest | 0% |
Territory Grape Farm | 30.1 | -0.8 | 34.8 | 14th | 11.6 | -3.1 | 7.1 | 30th | 0 | 15.7 | lowest | 0% |
Walungurru Airport | 31.2 | -2.2 | 36.1 | 9th | 19.5 | -1.3 | 16.1 | 22nd | 0 | 12.2 | v low | 0% |
Watarrka | 28.7 | -2.2 | 35.1 | 9th | 14.0 | -2.7 | 5.0 | 20th | 0.4 | 12.4 | average | 3% |
Yulara Airport | 28.7 | -1.4 | 36.0 | 9th | 13.5 | -1.1 | 8.0 | 20th | 2.0 | 14.3 | average | 14% |
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 10 am on Monday 3 May 2021. 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
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence