Annual Weather Review
Armidale NSW - 2009
© Compiled and written by Peter Burr, using data recorded at the Bureau of Meteorology weather station at East Armidale. No part of this review may be reproduced for commercial purposes without prior permission from the author.
2009
was a warmer than normal year with good falls of rain. Fine sunny conditions
prevailed on 184 days with rain on 123 days.
RAINFALL: Monthly totals varied throughout the year
with a drier than normal winter and spring. Heavy falls returned in December to
give a total for the year of 816.4 mm which was 30 mm higher than the long term
average (LTA). The wettest months were February with 132.4 mm and December with
149.0 mm. The driest month was August recording just 23.0 mm. The most noteworthy rain event occurred from
May 18th to 24th when a low pressure cell developed off the southern Queensland
coast and produced heavy flooding rains along the northern NSW coast. Armidale
was on the edge of the system receiving 87.4 mm over the seven days. On the
afternoon of May 22nd 55 mm of rain fell which caused flooding in Dumaresq
Creek. This was the highest daily fall for five years.
TEMPERATURES: 2009 was Armidale’s
second warmest year on record after 1998. Temperatures were above average in
all months except April, May and July. August was the warmest on record with
summer-like conditions on the 23rd (25.5 degrees) and the 24th (27.4 degrees).
Unusually hot conditions also prevailed in November, it was the warmest since
1897, and the maximum of 34.4 degrees on the 20th was the highest for November
since 1944. Temperatures exceeded 30 degrees throughout the year on 34 days
(LTA 13 days). Overnight minimums were notably warmer than normal in April,
November and December, and were close to normal in all other months. The
hottest day of the year was February 9th at 35.0 degrees, the lowest overnight
temperature was -7.0 degrees on June 12th and August 9th, and the coldest day
was July 16th with a maximum of 7.4 degrees.
WINDS:
Winds were light in February and March, and light to moderate in all
other months. The year totaled 22 windy days* (annual average 19 days).
Winds at
EVAPORATION: Total for the year was 1,191.6 millimetres
which was 17 mm less than the LTA. Average daily evaporation for the year was
3.3 mm.
FROSTS: Total frosts for the year was 92 which was 6 less than the LTA. August was the frostiest month
recording 22 frosts. There
were 22 light frosts, 46 moderate frosts and 24 severe frosts. The first frost
was on April 16th which produced a frost-free period 171 days over the summer
of 2008-09, and the last frost was on October 19th.
FOGS: There were fogs on 29 days which is 3 days
less than the annual average. The foggiest month was March with fogs on 8 days.
All fogs were in the early mornings with none in the evenings.
SNOW: Although there were a number of cold outbreaks
during the winter months, there were no snowfalls in 2009. The annual average
is 2.3 days of snow.
THUNDERSTORMS: Thunderstorm activity was a little higher
than normal with storms on 41 days. December was the month with the most storms
(11 days), and April, May and July were thunderstorm-free.
HAIL: Hail fell on 2 days. Small hailstones on March 16th and December 15th. The annual
average is 3.3 hail days.
FLOODS: Moderate flooding occurred in Dumaresq
Creek on May 22nd and December 28th. Minor or flash flooding
occurred on January 1st, February 14th & 25th, April 13th, Oct 26th, and
November 23rd.
DUST STORM: The most unusual event of the year was the
thick dust cloud which spread across northern New South Wales on September
23rd. The dust, which was blown in by strong winds from South Australia and
western New South Wales, reduced the visibility in Armidale during the morning
to as low as 300 metres at 7am. The dust remained
during the day and cleared during the evening.
LTA - Long Term Average * Windy day - average wind
speed higher than 20 kms per hour: 9am to 6pm
Weather
Statistics 2009 - Armidale NSW
|
|
JAN |
FEB |
MAR |
APR |
MAY |
JUN |
JUL |
AUG |
SEP |
OCT |
NOV |
DEC |
YEAR |
||
|
|
|||||||||||||||
|
RAINFALL mm |
55.4 |
132.4 |
46.2 |
61.0 |
87.6 |
50.2 |
29.8 |
23.0 |
33.4 |
71.0 |
77.4 |
149.0 |
816.4 |
||
|
Long Term
Average mm |
102.2 |
88.5 |
65.7 |
45.3 |
43.0 |
55.3 |
48.2 |
48.0 |
51.3 |
68.4 |
82.6 |
88.4 |
786.8 |
||
|
|
|||||||||||||||
|
RAIN DAYS |
10 |
11 |
11 |
14 |
7 |
15 |
12 |
6 |
4 |
12 |
9 |
12 |
123 |
||
|
Long Term
Average days |
10 |
10 |
10 |
8 |
8 |
10 |
9 |
9 |
8 |
9 |
9 |
10 |
110 |
||
|
|
|||||||||||||||
|
HIGHEST DAILY RAINFALL
mm |
21.0 |
38.0 |
14.4 |
28.4 |
55.8 |
23.8 |
8.0 |
16.4 |
13.8 |
30.4 |
37.4 |
48.2 |
55.8 |
||
|
Day |
3 |
15 |
5 |
13 |
23 |
22 |
23 |
30 |
8 |
27 |
24 |
29 |
|||
|
|
|||||||||||||||
|
AVERAGE DAILY MAX TEMP
deg C |
26.9 |
25.9 |
23.7 |
19.5 |
15.6 |
13.5 |
12.2 |
18.1 |
19.4 |
21.0 |
27.6 |
27.3 |
20.9 |
||
|
Long Term
Average deg C |
26.3 |
25.4 |
23.4 |
20.0 |
16.3 |
13.1 |
12.4 |
14.0 |
17.5 |
20.5 |
22.5 |
25.0 |
19.7 |
||
|
|
|||||||||||||||
|
AVERAGE DAILY MIN TEMP
deg C |
12.3 |
11.9 |
9.7 |
8.3 |
2.7 |
2.5 |
-0.1 |
-0.5 |
2.3 |
5.5 |
10.6 |
12.7 |
6.5 |
||
|
Long Term
Average deg C |
12.6 |
12.6 |
10.1 |
6.2 |
3.3 |
0.6 |
-0.4 |
-0.2 |
2.5 |
5.5 |
8.7 |
11.0 |
6.0 |
||
|
|
|||||||||||||||
|
AVERAGE GRASS MIN TEMP
deg C |
8.9 |
8.9 |
6.3 |
5.0 |
-0.4 |
-0.3 |
-3.1 |
-4.6 |
-1.9 |
1.3 |
7.8 |
9.7 |
3.1 |
||
|
Long Term
Average deg C |
9.5 |
10.0 |
7.2 |
3.0 |
-1.4 |
-3.2 |
-4.2 |
-4.2 |
-0.9 |
2.1 |
6.0 |
8.0 |
2.7 |
||
|
|
|||||||||||||||
|
HIGHEST MAXIMUM TEMP
deg C |
32.0 |
35.0 |
29.0 |
23.1 |
19.5 |
16.9 |
17.6 |
27.4 |
25.5 |
28.4 |
34.5 |
33.9 |
35.0 |
||
|
Day |
16 |
9 |
4 |
3 |
17 |
23 |
1 |
24 |
17 |
22 |
20 |
8 |
|||
|
|
|||||||||||||||
|
LOWEST MAXIMUM TEMP
deg C |
18.4 |
14.0 |
18.6 |
14.2 |
11.5 |
8.4 |
7.4 |
12.7 |
11.8 |
13.9 |
16.8 |
19.0 |
7.4 |
||
|
Day |
9 |
14 |
30 |
27 |
19 |
10 |
16 |
8 |
23 |
26 |
7 |
30 |
|||
|
|
|||||||||||||||
|
HIGHEST MINIMUM TEMP
deg C |
18.5 |
16.3 |
15.5 |
15.0 |
9.6 |
8.6 |
6.8 |
14.8 |
10.1 |
12.4 |
16.4 |
18.4 |
18.5 |
||
|
Day |
25 |
10 |
3 |
3 |
23 |
22 |
23 |
25 |
18 |
26 |
22 |
26 |
|||
|
|
|||||||||||||||
|
LOWEST MINIMUM TEMP
deg C |
6.5 |
6.6 |
3.2 |
-0.5 |
-3.6 |
-7.0 |
-6.4 |
-7.0 |
-3.6 |
-3.1 |
3.1 |
5.5 |
-7.0 |
||
|
Day |
1 |
28 |
17 |
30 |
13 |
12 |
20 |
9 |
12 |
17 |
2 |
2,3 |
|||
|
|
|||||||||||||||
|
LOWEST GRASS MIN TEMP
deg C |
3.2 |
1.4 |
-0.6 |
-3.2 |
-7.2 |
-9.6 |
-9.6 |
-11.3 |
-8.3 |
-8.3 |
-0.4 |
1.8 |
-11.3 |
||
|
Day |
1 |
8 |
6 |
28 |
15 |
12 |
20 |
9 |
12 |
17 |
2 |
2 |
|||
|
|
|||||||||||||||
|
FROSTS |
0 |
0 |
0 |
4 |
14 |
12 |
16 |
22 |
15 |
9 |
0 |
0 |
92 |
||
|
Long Term
Average days |
0 |
0 |
1 |
5 |
13 |
17 |
19 |
20 |
15 |
7 |
2 |
0 |
98 |
||
|
|
|||||||||||||||
|
FOGS days |
1 |
1 |
8 |
2 |
7 |
4 |
1 |
1 |
3 |
1 |
0 |
0 |
29 |
||
|
Long Term
Average days |
1 |
1 |
3 |
5 |
5 |
4 |
3 |
2 |
2 |
2 |
1 |
1 |
32 |
||
|
|
|||||||||||||||
|
THUNDERSTORMS days |
5 |
5 |
4 |
0 |
0 |
1 |
0 |
2 |
3 |
5 |
5 |
11 |
41 |
||
|
Long Term
Average days |
7 |
5 |
3 |
1 |
1 |
0 |
0 |
1 |
2 |
4 |
6 |
8 |
37 |
||
|
|
|||||||||||||||
|
EVAPORATION (Class A
Pan) mm |
143.2 |
119.0 |
113.6 |
66.0 |
45.4 |
34.8 |
43.6 |
83.4 |
96.0 |
126.2 |
160.4 |
160.0 |
1191.6 |
||
|
Long Term
Average mm |
163.8 |
128.9 |
117.2 |
77.8 |
51.6 |
37.6 |
42.6 |
65.4 |
97.1 |
129.2 |
135.3 |
162.8 |
1209.1 |
||
|
|
|||||||||||||||
|
AVGE. DAILY EVAPORATION
mm |
4.6 |
4.3 |
3.7 |
2.2 |
1.5 |
1.2 |
1.4 |
2.7 |
3.2 |
4.1 |
5.3 |
5.2 |
3.3 |
||
|
|
|||||||||||||||
|
AVERAGE DAILY WIND RUN
km |
121.1 |
114.3 |
113.2 |
129.9 |
120.2 |
146.7 |
160.4 |
123.8 |
146.7 |
144.0 |
126.9 |
120.8 |
130.7 |
||
|
Long Term
Average km |
160.1 |
153.6 |
148.5 |
132.7 |
131.4 |
152.3 |
159.8 |
172.8 |
180.3 |
165.1 |
161.7 |
161.8 |
156.7 |
||
|
|
|||||||||||||||
|
PREVAILING 3PM WIND DIRECTION |
E |
E |
E |
E |
E |
W |
W |
W |
W |
W |
E |
W |
- |
||
|
|
|||||||||||||||
|
FINE DAYS ^ |
15 |
13 |
17 |
12 |
14 |
9 |
14 |
22 |
20 |
17 |
20 |
11 |
184 |
||
|
Long Term
Average days |
16 |
13 |
17 |
17 |
15 |
14 |
16 |
19 |
20 |
19 |
14 |
16 |
194 |
||
|
|
|||||||||||||||
|
MAXIMUM TEMP > 29.9 deg. days |
6 |
8 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
11 |
9 |
34 |
||
|
MAXIMUM TEMP < 10.0 deg. days |
0 |
0 |
0 |
0 |
0 |
3 |
4 |
0 |
0 |
0 |
0 |
0 |
7 |
||
|
MINIMUM TEMP < 5.0 deg.
days |
0 |
0 |
4 |
9 |
23 |
18 |
28 |
24 |
23 |
13 |
3 |
0 |
145 |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
||||||
Back to Weather Home