Thursday, 2 August 2007 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0

Cool and Dry - Northern Territory in July 2007

Summary

Cool and dry conditions prevailed over most of the Territory during July, following on from a cold and wet June. These dry conditions and cooler temperatures are largely associated with cooler, drier air being transported northwards from southern parts.

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Rainfall

Very little rainfall was recorded across the Territory during July, although this is not unusual in what is typically a dry month. Rainfall generally remained close to average over the northern half, whilst the southern half experienced below average rainfall.


Maximum temperature

Maximum temperatures were near to, or slightly below, average across much of the Territory, the only exception being the Alice Springs District, which recorded temperatures between 1 and 3°C above average. Yulara recorded its highest July temperature with 30.1°C on the 31st, whilst Gove and Alyangula also broke maximum temperature records with cooler than average day-time temperatures.

Some sites had their highest July temperature on record.

Some sites had their lowest July mean daily maximum temperature on record.

Minimum temperature

Minimum temperatures of between 1 and 4°C below average prevailed across much of the Territory, while temperatures in the far south remained close to normal. Several minimum temperature records were broken.

Some sites had their lowest July temperature on record.

Some sites had their lowest July mean daily minimum temperature on record.


Further information

NT Climate Services Centre
Bureau of Meteorology
Phone (08) 8920 3819
Email climate.NT@bom.gov.au

Extremes

Hottest day
Highest temperature		 34.2°C at Douglas River on the 30th
Warmest days on average
Highest mean daily maximum temperature		 31.6°C at Middle Point AWS
Coolest days on average
Lowest mean daily maximum temperature		 20.4°C at Arltunga
Coldest day
Lowest daily maximum temperature		 14.6°C at Kulgera on the 15th
Coldest night
Lowest temperature		 −3.7°C at Alice Springs Airport on the 21st
Coolest nights on average
Lowest mean daily minimum temperature		 2.4°C at Arltunga
Warmest nights on average
Highest mean daily minimum temperature		 20.6°C at Cape Don AWS
Warmest night
Highest daily minimum temperature		 23.1°C at Oenpelli on the 4th
Wettest overall
Highest total rainfall		 1.2 mm at Alyangula Police
Wettest day
Highest daily rainfall		 1.2 mm at Alyangula Police on the 25th
Highest wind gust
 65 km/h at Yulara Aero AWS on the 31st

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Records

Record lowest mean daily maximum temperature for July 2007
  Mean daily maximum
temperature
(°C)		 Previous lowest Years of
record
Gove Airport
26.7
26.8
in 1971
27
Alyangula Police
26.2
26.8
in 1985
24

Record highest daily maximum temperature for July 2007
  Highest daily maximum
temperature
(°C)		 Previous highest Years of
record
Yulara Aero AWS
30.1
on the 31st
30.0
on the 27th in 1985
19



Record lowest mean daily minimum temperature for July 2007
  Mean daily minimum
temperature
(°C)		 Previous lowest Years of
record
Alyangula Police
15.8
16.1
in 1995
24
Black Point
18.9
20.0
in 1999
14
Borroloola AWS
8.5
10.3
in 2002
12
Channel Point
15.4
15.5
in 2002
10

Record lowest minimum temperature for July 2007
  Lowest daily minimum
temperature
(°C)		 Previous lowest Years of
record
Mango Farm
3.3
on the 11th
5.0
on the 12th in 1985
27
Channel Point
10.0
on the 1st
10.6
on the 15th in 1996
10


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Summaries

Summary statistics for July 2007
  Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean Diff
from
normal		 Highest Mean Diff
from
normal		 Lowest Total Rank Fraction of
normal
Darwin-Daly (district 14GA)
Batchelor Aero AWS
30.8
−1.0
33.3
31st
14.7
−1.3
9.2
1st
0.0
Black Point
29.1
−0.5
32.0
27th
18.9
−1.8
15.2
1st
0.0
normal
0%
Bradshaw
30.2
33.9
30th
12.8
6.6
11th
0.0
Cape Don AWS
28.0
30.0
17th
20.6
18.7
11th
0.0
normal
0%
Central Arnhem Plateau AWS
27.5
30.2
26th
13.4
8.2
1st
0.0
Channel Point
27.6
−1.4
30.5
17th
15.4
−1.6
10.0
1st
0.0
normal
0%
Darwin Airport
29.9
−0.6
32.0
31st
17.5
−1.7
13.2
1st
0.0
normal
0%
Delamere Weapons Range AWS
28.1
−1.4
32.0
30th
12.9
−1.7
8.0
11th
0.0
normal
0%
Douglas River
30.7
−0.9
34.2
30th
10.6
−2.5
4.0
11th
0.0
normal
0%
Dum In Mirrie AWS
29.1
31.2
17th
16.7
12.9
2nd
0.0
Jabiru Airport AWS
31.3
−0.5
33.6
30th
16.9
−1.6
12.9
10th
0.0
normal
0%
Katherine Aviation Museum
29.3
−1.2
32.3
30th
10.6
−2.3
4.4
11th
0.0
normal
0%
Mango Farm
30.3
−1.2
33.4
30th
12.3
−2.7
3.3
11th
0.0
normal
0%
McCluer Island AWS
26.0
28.4
29th
21.4
19.4
10th
0.0
normal
0%
Middle Point AWS
31.6
34.0
30th
11.7
5.5
11th
0.0
Pine Creek Council
29.5
32.0
31st
14.5
9.8
10th
0.0
Pirlangimpi AWS
30.1
−0.8
32.1
31st
17.5
−0.6
13.2
2nd
0.0
normal
0%
Point Fawcett AWS
28.6
−1.2
30.2
29th
15.5
−3.7
10.2
1st
0.0
normal
0%
Port Keats Aero AWS
33.4
30th
12.7
5.9
4th
0.0
Tindal RAAF AWS
29.3
−0.6
32.4
30th
11.1
−2.6
5.7
11th
0.0
normal
0%
Arnhem (district 14BC)
Alyangula Police
26.2
−1.9
28.5
28th
15.8
−2.0
11.5
11th
1.2
normal
41%
Gove Airport
26.7
−1.0
28.9
28th
18.8
−1.4
14.1
1st
0.0
normal
0%
Groote Eylandt Airport AWS
28.0
34.0
18th
13.1
7.1
11th
0.0
Maningrida Aero AWS
29.7
32.4
29th
16.6
12.7
7th
0.0
Milingimbi AWS
29.1
31.9
27th
17.5
14.6
7th
0.0
Ngayawili AWS
28.5
30.6
30th
18.1
14.1
7th
0.0
Warruwi AWS
27.8
−0.7
30.0
27th
20.1
−1.1
18.1
1st
0.0
normal
0%
Roper-Mcarthur (district 14DE)
Borroloola AWS
29.5
−0.8
33.0
30th
8.5
−3.6
3.4
10th
0.0
normal
0%
Bulman AWS
30.0
33.9
21st
10.2
4.4
10th
0.0
Centre Island
25.2
−1.0
28.7
28th
16.8
−1.7
14.7
1st
0.0
normal
0%
Daly Waters AWS
28.8
0
32.9
30th
9.7
−2.6
3.9
11th
0.0
normal
0%
Larrimah
28.9
−0.4
32.6
30th
9.2
−3.3
4.0
10th
0.0
normal
0%
McArthur River Mine
29.9
+0.1
33.0
27th
9.8
−2.2
4.1
10th
0.0
normal
0%
Wollogorang
28.2
−1.2
32.1
29th
8.8
−2.7
2.3
10th
0.0
normal
0%
Victoria (district 14F)
Kidman Springs
28.7
−1.7
33.1
30th
10.8
−1.7
6.1
23rd
0.0
normal
0%
Lajamanu AWS
25.9
−0.7
30.9
30th
8.1
−0.6
2.9
10th
0.0
normal
0%
Timber Creek
29.5
−1.0
33.4
30th
11.9
−2.9
6.8
11th
0.0
normal
0%
Victoria River Downs
27.9
−1.3
32.6
28th
8.7
−2.4
4.0
11th
0.4
high
14%
Wave Hill
27.4
−1.1
31.6
30th
8.6
−2.1
1.2
11th
0.0
normal
0%
Barkly (district 15A)
Brunette Downs
26.3
−0.5
30.5
31st
11.2
+0.7
6.1
11th
0.0
normal
0%
Tennant Creek Airport
24.1
−0.4
29.4
29th
11.7
−0.5
6.6
10th
0.0
normal
0%
Alice Springs (district 15B)
Ali Curung
24.1
−0.3
29.9
29th
5.9
−1.5
1.9
22nd
0.0
normal
0%
Alice Springs Airport
21.3
+1.7
27.9
31st
2.9
−1.2
−3.7
21st
0.0
normal
0%
Arltunga
20.4
26.7
3rd
2.4
−3.4
21st
0.0
normal
0%
Curtin Springs
21.9
+1.9
30.2
31st
3.5
−0.2
−1.5
20th
0.0
normal
0%
Jervois
22.6
+0.7
30.0
29th
4.6
−0.6
−0.6
21st
0.0
normal
0%
Papunya
23.6
30.1
29th
5.2
1.6
21st
0.0
normal
0%
Rabbit Flat
25.9
−0.2
30.9
29th
4.5
−2.2
−0.5
23rd
0.0
normal
0%
Territory Grape Farm AWS
22.8
+0.2
28.6
29th
3.4
−1.7
−2.0
21st
0.0
normal
0%
Watarrka
22.5
+0.8
29.1
31st
5.7
−0.6
−0.5
5th
0.0
normal
0%
Wulungurru AWS
24.4
30.4
31st
10.1
5.2
1st
0.0
Yulara Aero AWS
22.0
+1.6
30.1
31st
3.7
−0.9
−1.8
10th
0.0
normal
0%

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Notes

This statement has been prepared based on information available at 5pm on Thursday 2 August 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

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, normal in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of normal shows how much rain has fallen this time as a percentage of the long-term mean.

Further information

NT Climate Services Centre
Bureau of Meteorology
Phone (08) 8920 3819
Email climate.NT@bom.gov.au