Northern Territory in July 2019: Very warms days, cool nights in the north. Dry in the south.

A very warm month in the Northern Territory, amongst the warmest on record for July for mean maximum temperature. Parts of the Top End had cooler than average nights, but elsewhere the mean minimum temperature was average to above average. Generally no rainfall anywhere in the NT apart from some coastal parts of the northeast and the western Tiwi Islands

Lowest July rainfall since 2007

  • Parts of the southern Northern Territory which typically receive between 10 and 20 mm during July, recorded no rainfall during the month: only a small number of sites in the far northeast, the Carpentaria coast and the western Tiwi Islands received more than 1 mm of rain during July
  • Territory-wide, rainfall during the month was 99% below the long-term July average and the lowest since 2007
  • For the year to date, rainfall across the Northern Territory is 43% below the long-term average; the lowest since 1970 and the sixth-lowest on record

Very warm daytime temperatures, with cool nights over the Top End

  • The mean maximum temperature across the Territory was 2.35 °C above the long-term average and fourth-highest on record. Nearly all of the southern half of the Territory was very much above average, with the highest daytime temperatures in the southwest: Yulara had its highest July mean daily maximum temperature on record while Yulara and Curtin Springs both had their highest July mean temperature on record
  • Across the Territory, the mean minimum temperature was 1.01 °C above the long-term average, with significant variability across the NT. Parts of the Top End had very much below average minimum temperatures while it was generally average to above average further south
  • Territory-wide, the year-to-date mean maximum temperature is the highest on record, while the mean minimum is tracking at fifth-highest on record

Darwin Airport

  • Total rainfall for Darwin Airport was 0 mm, which is 0% of the long-term average of 1.1 mm
  • The mean daily maximum temperature for Darwin Airport was 31.3 °C, which is 0.7 °C above the long-term average of 30.6 °C. The warmest day was 33.3 °C on the 23rd, and the coolest day was on the 5th when the temperature reached 29.2 °C
  • The mean daily minimum temperature for Darwin Airport was 18.5 °C, which is 0.8 °C below the long-term average of 19.3 °C. The coldest morning was 14.4 °C on the 5th, and the warmest morning was on the 1st when the minimum temperature was 21.9 °C. Darwin Airport had 26 nights where the temperature fell below 20 °C; since 1941, the average for July is 18 nights

Alice Springs Airport

  • Total rainfall for Alice Springs Airport was 0.0 mm, compared to the long-term average of 15.1 mm
  • The mean daily maximum temperature for Alice Springs Airport was 22.9 °C, which is 3.1 °C above the long-term average of 19.8 °C. The warmest day was 28.3 °C on the 29th, and the coolest day was on the 14th when the temperature reached 15.6 °C
  • The mean daily minimum temperature for Alice Springs Airport was 4.0 °C, which is equal to the long-term average. The coldest morning was -1.1 °C on the 15th, and the warmest morning was on the 21st when the minimum temperature was 12.4 °C
  • Alice springs had 1 sub-zero daily minimum temperature during July: the long-term average is 6.1

Further information

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Extremes in July 2019
Hottest day 36.2 °C at Bradshaw - Angallari Valley (Defence) on the 20th
Warmest days on average 33.2 °C at Kangaroo Flats (Defence)
Coolest days on average 22.1 °C at Arltunga
Coldest day 14.7 °C at Arltunga on the 14th
Coldest night -2.7 °C at Arltunga on the 20th
Coolest nights on average 2.0 °C at Arltunga
Warmest nights on average 23.2 °C at Cape Wessel
Warmest night 24.4 °C at Cape Wessel on the 1st
Warmest on average overall 26.4 °C at Cape Wessel
Coolest on average overall 12.1 °C at Arltunga
Wettest overall 27.8 mm at Cape Wessel
Wettest day 17.8 mm at Cape Wessel on the 13th
Strongest wind gust 69 km/h at Cape Wessel on the 13th

Maps
ObservedAnomalyDecile 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


Record highest July daily rainfall
New record
(mm)
Old
record
Years of
record
Point Fawcett 2.6 on the 13th 2.0 on the 20th in 2001 23



Record highest July total rainfall
New record
(mm)
Old
record
Years of
record
Average for
July
Point Fawcett 3.2 2.0 in 2001 23 0.4

Highest July total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
July
Centre Island 3.2 3.4 in 1993 1.8



Record highest July mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Yulara Airport 23.9 23.5 in 2018 32 20.6



Record highest July mean temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Curtin Springs 14.6 14.5 in 1973 54 12.0
Yulara Airport 14.6 14.4 in 1996 32 12.5



Summary statistics for July 2019
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2019
Diff
from
average
Highest for
July
2019
Mean for
July
2019
Diff
from
average
Lowest for
July
2019
Total for
July
2019
Average
for
July
Rank of
July
2019
Fraction of
July
average
Darwin-Daly (district 14GA)
Batchelor Airport 32.2 +0.2 34.5 20th 15.5 -1.0 10.9 5th 0 0.8 lowest 0%
Black Point 30.0 +0.2 31.2 25th 20.4 -0.5 17.0 6th 0 4.4 lowest 0%
Central Arnhem Plateau 29.3 +0.3 31.6 20th 14.5 -1.4 10.2 5th 0 2.3 v low 0%
Channel Point 29.1 -0.2 32.5 12th 16.6 -0.6 13.4 18th 0 0.1 lowest 0%
Charles Point 28.5   31.7 13th 19.6   17.8 6th 0.4
Croker Island Airport 29.6   31.2 10th 20.3   17.7 6th 0
Darwin Airport 31.3 +0.7 33.3 23rd 18.5 -0.8 14.4 5th 0 1.1 lowest 0%
Delamere Weapons Range 30.5 +0.8 34.0 20th 15.4 +0.5 10.9 5th 0 0.4 lowest 0%
Douglas River Research Farm 32.6 +0.7 35.6 20th 12.0 -0.9 5.0 5th 0 2.4 lowest 0%
Dum In Mirrie Airstrip 30.6 +0.2 33.0 1st 17.5 -0.8 14.6 6th 0 1.0 lowest 0%
Jabiru Airport 32.5 +0.5 34.4 25th 18.1 -0.6 14.2 23rd 0 3.1 lowest 0%
Kangaroo Flats (Defence) 33.2   35.6 20th 17.2   13.9 6th 0.4
McCluer Island 26.9 -0.4 28.6 11th 22.8 -0.2 21.1 23rd 0 1.2 lowest 0%
Middle Point 33.0 +0.2 34.7 31st 13.1 -1.5 8.5 5th 0.2 0.3 average 67%
Mount Bundey North (Defence) 32.3   34.1 31st 18.1   15.2 18th 0
Mount Bundey South (Defence) 32.7   35.2 20th 14.9   11.6 5th 0
Murganella Airstrip 30.4   32.2 25th 14.9   9.4 24th 0
Noonamah Airstrip 33.0   34.8 20th 15.3   11.0 5th 0
Oenpelli Airport 32.9   34.6 25th 16.1   12.6 5th 0
Pirlangimpi Airport 31.0 -0.3 32.6 31st 18.4 -0.1 14.7 5th 0.6 2.6 average 23%
Point Fawcett 30.6 +0.4 32.0 1st 16.5 -1.8 13.8 24th 3.2 0.4 highest 800%
Point Stuart 31.0   33.8 1st 16.3   12.3 24th 0.2 0.8 average 25%
Port Keats Airport 31.7 +0.1 33.5 31st 16.9 +0.1 10.9 6th 0.2 1.1 average 18%
Tindal RAAF 31.5 +1.2 34.4 20th 11.8 -1.9 8.8 5th 0 2.5 lowest 0%
Arnhem (district 14BC)
Cape Wessel 29.7   31.1 8th 23.2   21.2 13th 27.8 17.7 high 157%
Gove Airport 28.1 +0.2 29.8 10th 18.9 -1.3 15.3 22nd 12.0 18.4 average 65%
Groote Eylandt Airport 28.9 0.0 30.4 31st 14.6 -1.1 10.5 22nd 0.2 2.8 low 7%
Maningrida Airport 30.4 -0.4 32.8 25th 16.7 -1.9 13.2 5th 0 0.9 v low 0%
Milingimbi Airport 30.9 +0.4 33.4 24th 18.0 -1.4 15.4 22nd 0.2 3.1 low 6%
Ngayawili 29.3 -0.3 30.6 7th 19.2 -0.5 16.4 22nd 1.6 3.7 average 43%
Warruwi Airport 28.5 -0.2 30.3 13th 21.0 -0.3 18.7 6th 0 1.8 lowest 0%
Roper-Mcarthur (district 14DE)
Borroloola Airport 31.6 +1.2 34.1 31st 10.9 -1.1 6.7 20th 0 0.5 lowest 0%
Bulman 31.0 0.0 32.7 21st 12.9 -1.3 8.8 23rd 0 1.2 v low 0%
Centre Island 26.7 +0.4 28.7 30th 18.8 +0.2 16.4 22nd 3.2 1.8 high 178%
Daly Waters Airstrip 30.4 +1.3 32.9 30th 10.6 -1.4 5.7 5th 0 1.8 lowest 0%
McArthur River Mine Airport 31.0 +0.8 33.6 31st 12.4 +0.1 6.7 20th 0 2.1 lowest 0%
Ngukurr Airport 31.2   33.1 31st 13.8   10.2 20th 0.2
Victoria (district 14F)
Bradshaw 32.7 +0.6 36.1 20th 15.9 +0.5 9.4 5th 0 0.2 lowest 0%
Bradshaw - Angallari Valley (Defence) 32.4   36.2 20th 16.9   10.3 5th 0
Lajamanu Airport 29.1 +2.0 33.3 22nd 10.8 +1.5 5.8 5th 0 4.2 lowest 0%
Wave Hill 29.6 +1.1 33.8 21st 12.1 +1.2 4.9 5th 0 5.0 lowest 0%
Barkly (district 15A)
Elliott 29.0 +0.6 32.5 21st 13.4 +2.1 8.7 5th 0 2.9 lowest 0%
Tennant Creek Airport 26.3 +1.6 30.7 21st 13.9 +1.6 9.3 15th 0 5.2 lowest 0%
Alice Springs (district 15B)
Alice Springs Airport 22.9 +3.1 28.3 29th 4.0 0.0 -1.1 15th 0 14.9 lowest 0%
Arltunga 22.1 +1.9 26.8 29th 2.0 -1.3 -2.7 20th 0 9.9 lowest 0%
Curtin Springs 23.5 +3.2 28.9 28th 5.6 +1.9 1.9 20th 0 12.2 lowest 0%
Jervois 23.5 +1.5 27.5 29th 4.7 -0.7 0.4 20th 0 13.6 lowest 0%
Rabbit Flat 28.3 +2.0 32.8 21st 6.8 -0.1 2.1 5th 0 4.7 lowest 0%
Territory Grape Farm 24.4 +1.7 28.1 29th 5.5 +0.4 2.4 4th 0 5.1 lowest 0%
Walungurru Airport 26.2 +2.5 30.2 20th 12.5 +2.0 7.6 15th 0 12.1 v low 0%
Yulara Airport 23.9 +3.3 29.2 28th 5.3 +0.9 1.2 20th 0 17.0 lowest 0%

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 12 pm on Thursday 1 August 2019. 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