Northern Territory in October 2018: Very warm start to 2018-19 wet season

Both overnight and daytime temperatures were well above average for the first month of the 2018-19 wet season, with the highest mean temperature for October since 1988. Rainfall across the Northern Territory was close to average during October.

Warm days and nights

Average rainfall

Darwin Airport

  • Total rainfall for Darwin Airport was 30.8 mm, which is 44% of the long-term average of 70.2 mm
  • The mean daily maximum temperature for Darwin Airport was 34.2 °C, which is 0.9  °C above the long-term average of 33.3 °C. The warmest day was 35.6 °C on the 8th, and the coolest day was on the 16th when the temperature reached 32.4 °C
  • The mean daily minimum temperature for Darwin Airport was 25.2 °C, which is 0.3  °C above the long-term average of 24.9 °C. The coldest morning was 22.0  °C on the 1st, and the warmest morning was on the 24th when the minimum temperature was 27.9 °C

Further information

Media
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Enquiries

Extremes in October 2018
Hottest day 43.7 °C at Jervois on the 26th
Warmest days on average 39.9 °C at Victoria River Downs
Coolest days on average 30.6 °C at McCluer Island
Coldest day 21.0 °C at Curtin Springs on the 27th
Coldest night 9.0 °C at Kulgera on the 4th
Coolest nights on average 16.1 °C at Arltunga
Warmest nights on average 26.3 °C at Charles Point
Warmest night 30.0 °C at Brunette Downs on the 31st
Warmest on average overall 32.6 °C at Bradshaw
Coolest on average overall 25.4 °C at Alice Springs Airport
Wettest overall 171.8 mm at Upper Waterhouse River
Wettest day 91.4 mm at Upper Waterhouse River on the 17th
Strongest wind gust 91 km/h at Lajamanu Airport on the 11th

Maps

Observed Anomaly Decile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Highest October total rainfall for at least 20 years

Observed
(mm)
Most recent
higher
Average for
October
Rabbit Flat 63.2 70.8 in 1998 21.9



Record lowest October total rainfall

New record
(mm)
Old
record
Years of
record
Average for
October
Dum In Mirrie Airstrip 0.2 2.2 in 2005 22 60.7

Lowest October total rainfall for at least 20 years

Observed
(mm)
Most recent
lower
Average for
October
Point Fawcett 0.2 0.0 in 1995* 64.6

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Record highest October temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Jervois 43.7 on the 26th 43.6 on the 18th in 2002 50 33.3
Tennant Creek Airport 41.9 on the 27th 41.6 on the 22nd in 1987 50 34.9
Territory Grape Farm 41.5 on the 25th 41.3 on the 18th in 2002 27 33.3



Record highest October mean daily maximum temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Borroloola Airport 38.8 38.4 in 2013 24 36.7
Point Fawcett 34.0 33.8 in 2017 20 33.0

Highest October mean daily maximum temperature for at least 20 years

Observed
(   °C)
Most recent
higher
Average for
October
Tennant Creek Airport 37.4 37.7 in 1988 34.9



Record highest October daily minimum temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Brunette Downs 30.0 on the 31st 29.0 on the 23rd in 1987 52 20.6
Tindal RAAF 28.4 on the 15th 28.3 on the 13th in 1998 31 24.0
Channel Point 29.5 on the 15th 28.5 on the 29th in 2017 24 24.1



Record lowest October temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Tindal RAAF 14.6 on the 1st = 14.6 on the 17th in 2014 31 24.0



Record highest October mean daily minimum temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Yuendumu 19.4 = 19.4 in 2014 48 16.9
Lajamanu Airport 23.9 23.8 in 2005 25 20.5

Highest October mean daily minimum temperature for at least 20 years

Observed
(   °C)
Most recent
higher
Average for
October
Tennant Creek Airport 23.9 =23.9 in 1990 21.7



Record highest October mean temperature

New record
(   °C)
Old
record
Years of
record
Average for
October
Territory Grape Farm 26.9 26.6 in 2015 26 24.4
Lajamanu Airport 31.3 31.2 in 1971 25 29.0

Highest October mean temperature for at least 20 years

Observed
(   °C)
Most recent
higher
Average for
October
Tennant Creek Airport 30.6 31.2 in 1988 28.3
Victoria River Downs 31.9 32.4 in 1989 30.1



Summary statistics for October 2018

Maximum temperatures
(   °C)
Minimum temperatures
(   °C)
Rainfall
(millimetres)
Mean for
October
2018
Diff
from
average
Highest for
October
2018
Mean for
October
2018
Diff
from
average
Lowest for
October
2018
Total for
October
2018
Average
for
October
Rank of
October
2018
Fraction of
October
average
Darwin-Daly (district 14GA)
Batchelor Airport 37.4 +0.6 39.6 12th 23.3 +0.2 18.6 1st 24.8 65.0 low 38%
Black Point 32.9 +0.1 35.2 23rd 24.3 -0.3 22.0 9th 0 12.5 lowest 0%
Central Arnhem Plateau 36.1 +0.5 38.8 30th 22.0 -0.1 18.5 1st 28.8 27.7 average 104%
Channel Point 32.7 +0.4 34.5 21st 24.8 +0.7 21.0 1st 61.8 66.1 average 93%
Charles Point 31.9   33.2 23rd 26.3   22.9 1st 12.8


Croker Island Airport 33.3   34.6 23rd 24.4   22.3 7th 0


Darwin Airport 34.2 +0.9 35.6 8th 25.2 +0.3 22.0 1st 30.8 70.2 average 44%
Delamere Weapons Range 38.5 +1.0 42.1 30th 24.7 +0.9 18.8 1st 20.4 28.1 average 73%
Douglas River Research Farm 39.2 +1.5 41.4 12th 22.6 +0.3 14.8 1st 24.2 35.8 average 68%
Dum In Mirrie Airstrip 33.4 +0.6 34.9 29th 25.6 +0.2 21.9 9th 0.2 60.7 lowest 0%
Jabiru Airport 38.6 +1.0 40.2 30th 24.4 +0.5 20.8 8th 1.4 39.6 low 4%
Kangaroo Flats (Defence) 37.2   39.4 12th 24.1   20.6 1st 90.6


McCluer Island 30.6 +0.1 33.5 23rd 26.2 0.0 23.5 8th 0.2 7.7 average 3%
Middle Point 37.6 +0.2 39.6 24th 21.9 -0.2 16.3 1st 35.2 45.8 average 77%
Mount Bundey North (Defence) 38.2   39.7 24th 24.2   20.4 1st 16.0


Mount Bundey South (Defence) 38.7   40.2 25th 24.4   18.2 1st 24.6


Murganella Airstrip 34.8   37.4 23rd 20.9   17.1 8th 0


Noonamah Airstrip 36.3   39.2 11th 23.9   20.5 1st 118.2


Oenpelli Airport 38.5   40.3 7th 22.8   18.8 9th 11.0


Point Fawcett 34.0 +1.0 36.1 29th 24.0 +0.5 19.4 9th 0.2 64.6 v low 0%
Point Stuart 34.9   37.2 23rd 24.4   20.3 8th 15.6 54.8 average 28%
Port Keats Airport 33.9 -0.5 37.1 12th 24.4 +0.4 20.5 1st 76.2 43.8 high 174%
Tindal RAAF 38.8 +1.1 41.6 30th 23.5 -0.5 14.6 1st 22.8 32.3 average 71%
Arnhem (district 14BC)
Cape Wessel 33.7   34.9 20th 24.7   22.4 14th 10.4 12.1 high 86%
Gove Airport 32.7 +0.9 35.2 22nd 22.0 +0.4 17.3 7th 0 10.2 lowest 0%
Groote Eylandt Airport 34.7 +0.6 36.9 22nd 21.6 +0.6 16.5 7th 6.0 25.4 low 24%
Maningrida Airport 33.0 -0.1 35.0 23rd 23.0 +0.1 19.0 3rd 0 12.1 v low 0%
Milingimbi Airport 33.4 +0.5 34.6 30th 23.9 +0.2 20.3 3rd 0 7.9 v low 0%
Ngayawili 32.5 -0.2 34.9 7th 22.6 0.0 19.3 4th 0 9.8 lowest 0%
Warruwi Airport 33.3 +0.8 37.3 23rd 25.3 -0.1 23.1 8th 0.6 12.4 average 5%
Roper-Mcarthur (district 14DE)
Borroloola Airport 38.8 +2.1 42.1 23rd 21.3 -0.1 15.7 1st 0.4 13.1 average 3%
Bulman 39.2 +0.9 41.7 30th 23.1 +1.4 18.7 1st 0.2 17.3 low 1%
Centre Island 34.1 +1.1 37.3 22nd 25.3 +0.4 22.4 1st 0 8.0 lowest 0%
Daly Waters Airstrip 38.8 +1.4 42.1 30th 20.1 -0.9 12.9 1st 31.8 21.5 high 148%
McArthur River Mine Airport 39.4 +1.5 42.6 23rd 22.2 +1.0 16.1 1st 13.6 19.7 average 69%
Ngukurr Airport 39.8   42.5 24th 23.4   17.7 1st 4.2


Victoria (district 14F)
Bradshaw 39.5 +0.6 42.4 30th 25.8 +0.8 21.5 2nd 49.2 23.2 high 212%
Bradshaw - Angallari Valley (Defence) 39.7   42.4 27th 24.9   21.9 2nd 28.2


Lajamanu Airport 38.8 +1.4 41.7 8th 23.9 +3.4 17.9 11th 57.8 19.8 v high 292%
Victoria River Downs 39.9 +2.0 42.5 27th 24.3 +2.0 18.1 1st 1.6 19.1 low 8%
Wave Hill 39.2 +1.5 42.1 30th 24.0 +2.4 18.2 12th 5.6 26.7 low 21%
Barkly (district 15A)
Elliott 39.3 +1.3 42.7 30th 22.7 +1.8 17.0 12th 1.0 20.9 low 5%
Tennant Creek Airport 37.4 +2.5 41.9 27th 23.9 +2.2 16.7 12th 16.8 19.2 average 88%
Alice Springs (district 15B)
Alice Springs Airport 33.8 +2.7 41.8 25th 17.4 +2.7 10.1 21st 15.8 20.2 average 78%
Arltunga     40.7 26th 16.1 +1.9 9.5 18th 8.0 21.1 average 38%
Curtin Springs 33.5 +1.7 39.0 22nd 17.6 +3.2 12.0 21st 21.1 18.2 high 116%
Jervois 35.9 +2.6 43.7 26th 18.2 +2.6 11.4 5th 4.6 14.2 average 32%
Rabbit Flat 37.8 +0.6 41.5 23rd 21.2 +2.9 16.7 2nd 63.2 21.9 v high 289%
Territory Grape Farm 35.9 +2.6 41.5 25th 18.0 +2.5 12.9 5th 3.8 14.3 average 27%
Walungurru Airport 37.0 +1.0 42.1 23rd 22.5 +1.5 17.6 12th 18.6 16.6 average 112%
Yuendumu 35.1 +2.0 38.5 24th 19.4 +2.5 13.5 12th 29.3 19.8 high 148%
Yulara Airport 33.8 +1.5 39.4 24th 17.6 +2.7 12.9 21st 45.6 21.9 high 208%

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 9 am on Thursday 1 November 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
(03) 9669 4057
Enquiries