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Thursday, 1 March 2007 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0

Hot and dry in the south of the Territory while Kakadu cops a drenching - Northern Territory in February 2007

Very hot conditions prevailed in the southern parts of the Northern Territory during February 2007. The above average temperatures also extended across much of western and southern Australia. The Northern Territory experienced dry conditions during the month, with the exception of the Top End.

Rainfall

Most of the Northern Territory recorded very much below average to lowest on record rainfall for the month of February 2007. An exception to this was the Top End, which recorded average to well above rainfall.

A persistent high pressure cell over central Australia and a ridge over the southeast coast of Australia directed dry east to southeast flow over most of the region. Several stations reported lowest on record rainfall in the southern parts of the NT. Alice Springs recorded its first rain-free February since 1965.

The active monsoon trough off north coast of Australia caused good falls over the Top End, particularly in the Kakadu National Park region where a few locations recorded their highest ever monthly rainfall totals.

Some sites had their highest total February rainfall on record.

Some sites had their lowest total February rainfall on record.

Maximum temperature

Mean monthly maximum temperatures over southern parts of the Territory were well above average during February 2007. Some areas in the far southwest recorded 5 to 6°C above average. The daily maximum temperature at Alice Springs reached at least the long-term average value of 35.1°C on every day of the month, a feat not before achieved at Alice Springs in February.

Some sites had their highest February temperature on record.

Some sites had their coldest February day (lowest maximum temperature) on record.

Some sites had their highest February mean daily maximum temperature on record.

Minimum temperature

Mean monthly minimum temperatures over far southwestern parts of the Territory were also well above average during February 2007 with values reaching between 5 to 6°C above average in some areas. However, minimums were 1 to 2°C below average in some areas of the central Northern Territory and about average in the remainder.

Some sites had their lowest February temperature on record.

Some sites had their warmest February night (highest daily minimum temperature) on record.

Some sites had their highest February 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
45.5°C at Wulungurru AWS on the 9th
Warmest days on average
Highest mean daily maximum temperature
42.2°C at Wulungurru AWS
Coolest days on average
Lowest mean daily maximum temperature
30.4°C at McCluer Island AWS
Coldest day
Lowest daily maximum temperature
25.9°C at Oenpelli on the 28th
Coldest night
Lowest temperature
14.9°C at Arltunga on the 12th
Coolest nights on average
Lowest mean daily minimum temperature
20.2°C at Yuendumu
Warmest nights on average
Highest mean daily minimum temperature
28.8°C at Wulungurru AWS
Warmest night
Highest daily minimum temperature
32.0°C at Yulara Aero AWS on the 18th
Wettest overall
Highest total rainfall
800.6 mm at Jabiru Airport AWS
Wettest day
Highest daily rainfall
144.8 mm at Jabiru Airport AWS on the 28th
Highest wind gust
93 km/h at McCluer Island AWS on the 2nd

Records

Record highest total rainfall for February 2007
Total rainfall
(mm)
Previous highest Years of
record
Oenpelli
677.1
658.0
in 2002
93
Jabiru Airport AWS
800.6
767.9
in 1980
18



Record lowest total rainfall for February 2007
Total rainfall
(mm)
Previous lowest Years of
record
Kidman Springs
35.6
38.6
in 1996
34
Wave Hill
4.6
12.6
in 2006
32
Timber Creek
44.2
58.6
in 1986
25
Territory Grape Farm AWS
0.0
1.2
in 1988
14



Record highest mean daily maximum temperature for February 2007
Mean daily maximum
temperature
(°C)
Previous highest Years of
record
Curtin Springs
40.7
39.5
in 1991
42
Timber Creek
38.3
37.3
in 1989
26
Kulgera
39.4
38.3
in 1991
24
Mango Farm
34.9
34.8
in 1988
24
Yulara Aero AWS
40.8
39.5
in 1986
19
Watarrka
40.2
39.3
in 1991
16
Channel Point
32.7
32.5
in 2005
12
Kidman Springs
38.9
37.5
in 1998
10
Territory Grape Farm AWS
37.7
37.6
in 2006
10



Record highest daily maximum temperature for February 2007
Highest temperature
(°C)
Previous highest
Years of
record
Douglas River
37.4
on the 1st
37.2
on the 14th in 2005
15



Record lowest daily maximum temperature for February 2007
Lowest daily maximum
temperature
(°C)
Previous lowest Years of
record
Warruwi AWS
26.4
on the 28th
26.7
on the 21st in 1968
30



Record highest mean daily minimum temperature for February 2007
Mean daily minimum
temperature
(°C)
Previous highest Years of
record
Curtin Springs
24.2
23.9
in 1997
41
Yulara Aero AWS
24.9
24.3
in 1997
19
Watarrka
24.8
24.7
in 2003
16



Record highest daily minimum temperature for February 2007
Highest daily minimum
temperature
(°C)
Previous highest Years of
record
Yulara Aero AWS
32.0
on the 18th
31.7
on the 18th in 1992
19
Batchelor Aero AWS
26.6
on the 1st
26.5
on the 6th in 2002
11

Summaries

Summary statistics for February 2007
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean Diff
from
normal
Highest Mean Diff
from
normal
Lowest Total Normal Rank Fraction of
normal
Darwin-Daly (district 14GA)
Batchelor Aero AWS
33.5
+1.2
35.7
1st
23.7
−0.1
22.1
21st
287.6
339.2
normal
85%
Black Point
31.2
+0.2
33.6
21st
25.9
+0.3
22.6
8th
299.2
288.3
normal
104%
Bradshaw
37.4
40.8
1st
25.3
20.1
10th
131.6
Cape Don AWS
30.8
32.2
21st
25.2
22.4
27th
344.2
204.5
very high
168%
Central Arnhem Plateau AWS
32.1
34.9
16th
22.9
19.4
10th
343.2
Channel Point
32.7
+1.2
33.5
19th
25.2
+0.3
22.8
24th
198.0
427.9
very low
46%
Darwin Airport
32.1
+0.7
33.9
21st
24.4
−0.3
22.6
24th
423.8
357.2
high
119%
Delamere Weapons Range AWS
38.0
+3.8
41.0
8th
24.6
+0.8
21.0
14th
21.0
Douglas River
35.0
+2.0
37.4
1st
23.8
+0.1
22.3
24th
109.4
291.0
very low
38%
Dum In Mirrie AWS
32.0
33.5
24th
25.2
22.9
2nd
411.6
399.0
normal
103%
Jabiru Airport AWS
33.6
+0.5
35.8
14th
24.1
−0.3
21.5
10th
800.6
347.0
highest
231%
Katherine Aviation Museum
35.4
+1.2
37.8
1st
24.0
0
21.0
10th
97.7
244.6
low
40%
Mango Farm
34.9
+2.0
37.5
1st
23.4
−0.4
21.7
10th
164.0
322.6
low
51%
McCluer Island AWS
30.4
32.6
15th
25.5
20.3
3rd
574.4
229.4
highest
250%
Middle Point AWS
33.8
36.6
9th
23.6
22.4
9th
293.4
Pine Creek Council AWS
34.2
36.7
1st
23.9
21.8
24th
182.4
Pirlangimpi AWS
31.8
+0.5
33.7
9th
24.4
+0.1
22.0
1st
419.8
385.9
normal
109%
Point Fawcett AWS
31.4
−0.1
33.0
15th
25.3
−0.2
21.9
25th
216.6
279.3
normal
78%
Tindal RAAF AWS
35.1
+1.4
38.3
1st
24.4
+0.3
20.8
10th
73.4
249.8
very low
29%
Arnhem (district 14BC)
Alyangula Police
32.0
−0.4
35.0
12th
25.7
+0.2
23.3
4th
323.2
238.2
high
136%
Gove Airport
31.0
−0.4
35.3
9th
24.7
+0.2
23.0
17th
184.8
289.3
low
64%
Groote Eylandt Airport AWS
33.0
36.2
14th
24.6
22.8
17th
507.2
Maningrida Aero AWS
31.5
35.4
9th
24.3
21.5
2nd
298.0
Milingimbi AWS
31.9
36.0
9th
24.9
22.8
2nd
325.0
Ngayawili AWS
31.0
33.4
15th
25.9
24.0
25th
256.0
Warruwi AWS
31.5
0
33.6
21st
25.3
−0.1
22.5
7th
130.4
236.9
low
55%
Roper-Mcarthur (district 14DE)
Borroloola AWS
33.7
−0.3
38.7
9th
24.3
−0.6
22.5
28th
258.4
223.2
high
116%
Bulman AWS
33.9
37.4
13th
23.1
21.7
10th
335.4
Centre Island AWS
33.2
+0.2
36.8
10th
26.7
+0.1
24.4
14th
211.6
273.3
normal
77%
Daly Waters AWS
37.2
+2.3
39.6
16th
23.3
−0.2
19.7
14th
29.2
176.0
very low
17%
Larrimah
35.5
+1.0
39.0
8th
23.6
−0.1
20.4
14th
71.0
203.2
low
35%
McArthur River Mine
35.0
−0.2
39.5
9th
24.6
−0.1
21.2
14th
201.2
180.8
high
111%
Ngukurr
35.2
+0.1
39.5
13th
25.0
+0.3
22.5
27th
201.6
171.5
normal
118%
Wollogorang
34.3
−0.2
39.6
9th
23.8
−0.4
19.4
14th
170.2
253.7
normal
67%
Victoria (district 14F)
Kidman Springs
38.9
+3.4
41.2
9th
25.7
+0.9
20.9
14th
35.6
183.0
lowest
19%
Lajamanu AWS
38.9
+3.1
41.2
18th
23.1
−0.6
18.7
14th
13.2
152.0
low
9%
Timber Creek
38.3
+3.3
40.4
16th
24.3
−0.4
19.7
15th
44.2
229.2
lowest
19%
Victoria River Downs
38.1
+2.7
41.0
8th
24.4
−0.1
19.9
14th
13.6
157.8
very low
9%
Wave Hill
38.5
+2.6
40.7
8th
23.5
−0.4
18.6
14th
4.6
181.1
lowest
3%
Barkly (district 15A)
Brunette Downs
37.8
+1.5
40.9
9th
23.7
−0.4
20.8
12th
5.4
100.2
very low
5%
Tennant Creek Airport
37.0
+1.3
40.1
9th
24.6
+0.1
22.3
14th
10.6
126.2
low
8%
Alice Springs (district 15B)
Alice Springs Airport
38.0
+3.0
40.9
9th
21.2
+0.4
16.9
13th
0.0
43.0
lowest
0%
Arltunga
36.2
38.6
9th
20.9
14.9
12th
0.0
41.3
lowest
0%
Curtin Springs
40.7
+4.4
43.5
17th
24.2
+2.6
20.0
12th
0.0
26.7
lowest
0%
Kulgera
39.4
+3.8
42.2
16th
23.5
+2.0
16.9
12th
0.0
36.7
lowest
0%
Papunya
39.3
41.8
8th
23.1
20.0
11th
0.0
42.7
lowest
0%
Rabbit Flat
39.6
+3.0
41.3
18th
17.0
14th
1.6
137.6
lowest
1%
Territory Grape Farm AWS
37.7
+1.6
40.3
8th
20.5
−1.2
15.7
13th
0.0
76.8
lowest
0%
Watarrka
40.2
+3.4
42.5
9th
24.8
+1.6
20.0
15th
0.0
52.5
lowest
0%
Wulungurru AWS
42.2
45.5
9th
28.8
25.1
18th
1.8
Yuendumu
37.4
+2.2
40.3
18th
20.2
−1.8
16.8
15th
0.0
66.4
lowest
0%
Yulara Aero AWS
40.8
+4.1
43.4
17th
24.9
+2.8
20.2
1st
0.0
49.2
lowest
0%

Notes

This statement has been prepared based on information available at 2 pm on Thursday 1 March 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Normals are long-term means based on observations from the years 1800 to 2006. They are not shown for sites with less than 10 years of record in that time, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of "normal" 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, 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