Friday, 4 January 2008 - Monthly Climate Summary for Northern Territory - Product code IDCKGC12R0

Record hot start and normal monsoon onset - Northern Territory in December 2007

Summary

A record hot start across the Territory was experienced in December 2007 however the monthly averages ended up being close to normal. Rainfall across the Territory was also close to normal though the Top End was wetter than average mainly due to the onset of the monsoon around Christmas.


Rainfall

Average to well above average rainfall for the month was recorded over the Top End and to the far northwest.  However, the rainfall was average to below average south of the Top End. Some areas in the Alice Springs District reported below normal rain for the month.

Northwesterly trade winds appeared in Darwin on the 27th, marking the onset of the monsoon. Prior to this, the Top End received some good falls due to cloudbands which passed through the area.

Some sites had their highest daily December rainfall on record.

Some sites had their highest total December rainfall on record.


Temperature

In the first few days of the month a complex weather pattern, including a deep heat-low south of the Top End, contributed to several hottest ever daily temperature records being broken across the Territory.

This hot-spell included Darwin which endured its hottest night for more than 20 years, and its equal hottest night on record. The minimum temperature recorded was 29.7°C with the previous occurrences being on the 25th of November 1987 and the 19th of December 1985.

Despite the hot start, mean maximum temperatures for the month remained within one degree of the long-term mean over the Territory. Some areas in the far southwest recorded more than two degrees below normal.

Also, overall mean minimum temperatures were about normal in the Top End while warmer than normal minimums were recorded in the southern parts of the Territory. Two to three degrees above normal minimums were recorded in the southeast.

Some sites had their highest December temperature on record.

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

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

Some sites had their highest maximum temperature on record for any month.

Some sites had their warmest night (highest daily minimum temperature) on record for any month.


Further information

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

Extremes

Hottest day
Highest temperature
46.5°C at Elliott on the 2nd
Warmest days on average
Highest mean daily maximum temperature
39.1°C at Brunette Downs
Coolest days on average
Lowest mean daily maximum temperature
32.0°C at Point Fawcett AWS
Coldest day
Lowest daily maximum temperature
20.7°C at Yulara Aero AWS on the 11th
Coldest night
Lowest temperature
13.2°C at Curtin Springs on the 12th
Coolest nights on average
Lowest mean daily minimum temperature
20.5°C at Curtin Springs
Warmest nights on average
Highest mean daily minimum temperature
27.7°C at Centre Island AWS
Warmest night
Highest daily minimum temperature
31.2°C at Brunette Downs on the 3rd
Wettest overall
Highest total rainfall
523.4 mm at Howard Springs
Wettest day
Highest daily rainfall
267.2 mm at Howard Springs on the 30th

Records


Record highest daily rainfall for December 2007
  Highest daily rainfall
(mm)
Previous highest Years of
record
Timber Creek
96.2
on the 25th
87.0
on the 3rd in 2005
25
Stokes Hill
98.4
on the 30th
81.8
on the 29th in 1973
17
Wildman Rangers
148.6
on the 30th
125.4
of the 4th in 2000
10



Record highest total rainfall for December 2007
  Total rainfall
(mm)
Previous highest Years of
record
Timber Creek
329.1
308.5
in 2005
26



Record highest daily temperature for December 2007
  Highest temperature
(°C)
Previous highest Years of
record
Brunette Downs
45.5
on the 2nd
45.2
on the 23rd in 1990
42
Larrimah
43.5
on the 2nd
43.1
on the 22nd in 1986
41
Tennant Creek Airport
45.4
on the 2nd
44.7
on the 23rd in 1990
38
Daly Waters AWS
44.3
on the 2nd
43.1
on the 16th in 1939
37
Wave Hill
45.2
on the 2nd
44.7
on the 31st in 1990
34
Yuendumu
44.6
on the 2nd
44.0
on the 6th in 1981
33
Elliott
46.5
on the 2nd
46.0
on the 26th in 1989
26
Ali Curung
46.0
on the 2nd
44.8
on the 22nd in 1990
17
Borroloola AWS
42.9
on the 2nd
42.5
on the 27th in 2002
10



Record lowest daily maximum temperature for December 2007
  Lowest daily maximum
temperature
(°C)
Previous lowest Years of
record
Jabiru Airport AWS
26.0
on the 29th
26.2
on the 31st in 2004
27



Record highest daily minimum temperature for December 2007
  Highest daily minimum
temperature
(°C)
Previous highest Years of
record
Darwin Airport
29.7
on the 3rd
= 29.7
on the 19th in 1985
66
Brunette Downs
31.2
on the 3rd
30.1
on the 1st in 1996
42
Pirlangimpi AWS
29.0
on the 3rd
28.5
on the 31st in 1990
24
Lajamanu AWS
30.1
on the 2nd
30.0
on the 24th in 2005
14



Record highest daily temperature for any month
  Highest temperature
(°C)
Previous highest Years of
record
Larrimah
43.5
on the 2nd of Dec
= 43.5
on the 17th of Nov 1975
37
Tennant Creek Airport
45.4
on the 2nd of Dec
44.7
on the 23rd of Dec 1990
37
Brunette Downs
45.5
on the 2nd of Dec
= 45.5
on the 19th of Feb 1983
34
Elliott
46.5
on the 2nd of Dec
46.0
on the 26th of Dec 1989
19
Ali Curung
46.0
on the 2nd of Dec
45.0
on the 29th of Jan 1990
15



Record highest daily minimum temperature for any month
  Highest daily minimum
temperature
(°C)
Previous highest Years of
record
Darwin Airport
29.7
on the 3rd of Dec
= 29.7

on the 25th of Nov 1987
and the 19th of Dec 1985

62
Brunette Downs
31.2
on the 3rd of Dec
31.0
on the 3rd of Jan 1994
27
Pirlangimpi AWS
29.0
on the 3rd of Dec
= 29.0
on the 21st of Mar 2004
18



Summaries

This table is very wide and may not fit if printed.

Summary statistics for December 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
33.8
0.0
35.7
17th
24.0
0.0
21.5
8th
368.4
high
152%
Black Point
32.7
+0.3
34.6
8th
26.2
0.0
23.6
26th
318.8
high
158%
Bradshaw AWS
36.8
+0.3
40.1
2nd
25.7
+0.3
23.5
10th
187.4
Cape Don AWS
32.6
35.4
8th
26.5
23.1
23rd
346.8
high
137%
Central Arnhem Plateau AWS
32.7
35.7
5th
23.4
20.8
6th
407.4
Channel Point
32.7
+0.4
34.8
5th
25.2
+0.3
22.4
6th
427.8
high
146%
Darwin Airport
33.3
+0.7
35.5
18th
25.6
+0.3
21.3
6th
255.6
normal
104%
Delamere Weapons Range AWS
36.1
+0.4
42.0
2nd
24.6
+0.1
22.0
14th
135.8
normal
75%
Douglas River
34.8
–0.3
38.7
5th
24.2
+0.7
21.8
8th
308.8
high
157%
Dum In Mirrie AWS
32.8
+0.4
34.0
1st
26.0
–0.1
22.8
6th
141.8
low
54%
Jabiru Airport AWS
35.2
+0.3
38.9
1st
25.4
+0.5
23.1
15th
396.2
very high
181%
Katherine Aviation Museum
35.7
–0.3
40.3
2nd
24.0
–0.6
21.9
4th
330.6
high
159%
Mango Farm
34.8
0.0
36.5
5th
23.9
+0.1
22.5
5th
331.8
high
145%
McCluer Island AWS
32.5
34.2
5th
27.7
24.2
30th
298.4
high
147%
Middle Point AWS
35.0
38.0
7th
24.2
22.3
6th
241.4
Pine Creek Council AWS
34.7
38.0
2nd
24.2
22.5
10th
297.9
Pirlangimpi AWS
33.1
+0.5
36.0
8th
25.3
+0.7
23.3
31st
402.4
normal
118%
Point Fawcett AWS
32.0
–0.4
33.4
5th
25.5
–0.2
22.7
8th
367.4
high
134%
Tindal RAAF AWS
35.5
–0.1
39.6
2nd
24.5
–0.2
22.4
10th
288.8
high
148%
Arnhem (district 14BC)
Alyangula Police
34.2
+0.2
37.5
2nd
27.2
+1.0
23.9
24th
104.0
normal
64%
Gove Airport
33.4
+0.6
36.9
2nd
25.2
+0.6
23.4
7th
106.6
normal
61%
Groote Eylandt Airport AWS
33.7
39.1
1st
25.5
23.0
24th
271.0
Maningrida Aero AWS
33.6
38.5
2nd
25.6
22.6
4th
255.4
Milingimbi AWS
33.9
37.6
2nd
26.5
23.3
29th
271.8
Ngayawili AWS
32.9
35.9
11th
26.2
24.3
12th
334.8
Warruwi AWS
33.7
+0.5
37.4
3rd
26.9
+0.7
24.2
29th
232.0
normal
123%
Roper-Mcarthur (district 14DE)
Borroloola AWS
36.4
0.0
42.9
2nd
26.0
+0.6
23.4
29th
95.2
normal
69%
Bulman AWS
37.7
42.6
1st
25.1
23.7
15th
231.4
Centre Island AWS
35.0
+0.4
39.0
1st
27.7
+0.4
22.9
29th
163.8
high
133%
Daly Waters AWS
37.9
+0.6
44.3
2nd
25.0
+0.8
21.0
25th
137.8
high
135%
Larrimah
36.8
–0.1
43.5
2nd
24.7
+0.2
21.0
24th
149.0
normal
110%
McArthur River Mine
38.6
+0.9
45.1
2nd
26.3
+1.5
22.5
29th
116.4
normal
94%
Wollogorang
36.7
–0.1
44.3
2nd
25.2
+1.0
22.9
27th
169.0
normal
101%
Victoria (district 14F)
Kidman Springs
38.0
+0.6
43.1
2nd
25.4
+0.1
22.4
18th
121.2
normal
90%
Lajamanu AWS
37.9
–0.1
44.4
1st
24.9
+0.8
20.9
29th
113.6
high
151%
Timber Creek
37.6
+0.4
41.9
2nd
24.8
–0.6
21.6
15th
329.1
highest
197%
Victoria River Downs
38.3
+0.4
43.3
3rd
25.4
+0.3
23.0
16th
118.6
normal
101%
Wave Hill
38.6
+0.4
45.2
2nd
25.5
+1.0
22.4
6th
74.2
normal
64%
Barkly (district 15A)
Brunette Downs
39.1
+0.7
45.5
2nd
25.5
+1.2
21.9
10th
21.0
low
31%
Tennant Creek Airport
38.0
+0.7
45.4
2nd
26.1
+1.2
21.6
23rd
24.0
low
35%
Alice Springs (district 15B)
Alice Springs Airport
35.2
–0.2
42.6
1st
21.3
+1.1
13.7
24th
21.6
normal
58%
Curtin Springs
35.2
–1.2
44.1
1st
20.5
0.0
13.2
12th
34.1
high
115%
Jervois
38.3
+0.5
43.0
6th
23.6
+2.4
17.7
25th
9.8
low
25%
Papunya
36.7
44.1
1st
15.8
24th
17.5
normal
56%
Rabbit Flat
38.2
–0.2
45.3
1st
23.7
0.0
19.7
26th
86.6
normal
102%
Territory Grape Farm AWS
37.1
+0.8
43.6
2nd
22.4
+1.7
16.9
24th
7.6
very low
16%
Watarrka
34.9
–1.6
42.9
1st
20.8
–1.2
14.9
9th
33.7
normal
99%
Wulungurru AWS
36.8
44.0
1st
23.9
18.7
13th
0
Yuendumu
36.2
+0.1
44.6
2nd
17.6
24th
3.6
very low
8%
Yulara Aero AWS
35.0
–1.4
44.0
1st
20.6
0.0
13.8
12th
67.0
high
164%

Notes

This statement has been prepared based on information available at 3 pm on Friday 4 January 2008. 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