Wednesday, 4 April 2012

Winter in July

For the last two days in Perth it's been largely overcast with an occasional shower.  For over a month not only has it not rained but we've barely even seen any clouds.  So, now that we've had a little bit of rain it feels like a significant change even though the precipitation is barely noticeable.

We are currently in the Autumn season in Australia (they don't call it Fall) and heading towards Winter.  Winter in Perth is a lot like winter in some parts of the Mediterranean.  It's relatively warm (with an average high of around 18C and a low around 8C) and it's a little wet.  Winters are relatively cool and wet, with most of Perth's annual rainfall falling between May and September. The lowest temperature recorded in Perth was −0.7 °C on 17 June 2006.  The wettest day ever was on 9 February 1992 when 120.6 millimetres fell.  In general, the winters in Perth are getting dryer.  Here's a little chart with some climate figures (from Wikipedia):


[hide]Climate data for Perth, Western Australia (temperatures 1993–2010, extremes 1897–2010, rain data 1876–2010)
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Record high °C (°F)45.8
(114.4)
46.2
(115.2)
42.4
(108.3)
37.6
(99.7)
34.3
(93.7)
28.1
(82.6)
26.3
(79.3)
27.8
(82.0)
32.7
(90.9)
37.3
(99.1)
40.3
(104.5)
44.2
(111.6)
46.2
(115.2)
Average high °C (°F)30.8
(87.4)
31.3
(88.3)
29.5
(85.1)
25.6
(78.1)
22.4
(72.3)
19.3
(66.7)
18.3
(64.9)
18.8
(65.8)
20.1
(68.2)
23.0
(73.4)
26.4
(79.5)
28.8
(83.8)
24.5
(76.1)
Average low °C (°F)17.8
(64.0)
18.1
(64.6)
16.5
(61.7)
13.6
(56.5)
10.6
(51.1)
8.5
(47.3)
7.8
(46.0)
8.1
(46.6)
9.4
(48.9)
11.2
(52.2)
14.2
(57.6)
16.2
(61.2)
12.7
(54.9)
Record low °C (°F)8.9
(48.0)
8.7
(47.7)
6.3
(43.3)
4.1
(39.4)
1.3
(34.3)
−0.7
(30.7)
0.0
(32.0)
1.3
(34.3)
1.0
(33.8)
2.2
(36.0)
5.0
(41.0)
7.9
(46.2)
−0.7
(30.7)
Rainfall mm (inches)9.5
(0.374)
12.7
(0.5)
19.5
(0.768)
44.1
(1.736)
117.5
(4.626)
175.7
(6.917)
169.7
(6.681)
133.6
(5.26)
80.6
(3.173)
52.2
(2.055)
22.1
(0.87)
12.8
(0.504)
850.0
(33.465)
% humidity39384046505657545347444047
Avg. precipitation days2.12.24.46.611.515.117.315.615.38.86.03.9108.8
Mean monthly sunshine hours359.6310.8294.5246210.8177186220.1228297.6321359.63,211

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