17 March 2008

If you can't stand the heat, get out of Adelaide

The average maximum temperature in Adelaide in March is 26 degrees C. Not exactly autumnal, but not high summer either.

For the last 15 days we've been experiencing an official heatwave, where each day the maximum temperature has exceeded 35 deg. The Bureau of Meteorology official figures are available on its website , but I'll reproduce them here:

Observations are from Kent Town, about 2 km east of the city centre.

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Sa13.525.70

ESE4602:1217.237
E91022.624.425
SW171020.4
2Su13.331.10
11.4NE3008:0823.516
NE151021.630.19
W191019.9
3Mo15.635.4019.611.0


25.616
NNE71020.034.36
W191017.5
4Tu23.535.7
11.810.4


27.016
WSW41019.434.512
WSW131017.7
5We24.437.9010.611.2ESE3523:0428.427
NNE131021.137.39
WSW151019.3
6Th19.638.507.211.2SW3014:1126.528
ENE41022.238.08
WSW171020.6
7Fr19.939.008.2
WNW2411:5226.539
Calm1022.337.311
W151020.4
8Sa21.139.80

E2620:5926.833
Calm1021.138.99
SW201018.9
9Su25.440.20

E3700:5631.515
NNE111020.939.59
WSW191018.7
10Mo22.440.00
11.4WNW3113:0128.626
NNE41019.838.012
WSW191018.7
11Tu22.038.4034.411.1WSW3013:4126.245
N61020.635.923
SW191018.1
12We22.439.207.89.4WSW3714:3325.744
SSW61018.638.313
WNW171015.9
13Th25.039.708.010.8NW5212:5231.421
NNE91014.338.89
NW301011.6
14Fr30.238.6015.8
WNW5612:0731.215
N201012.938.18
NW301012.4
15Sa23.638.30

NW3112:5126.142
NNE41015.936.017
WNW151014.5
16Su22.539.90
10.9WNW3111:1828.534
NE71015.939.711
WSW171013.9
17Mo25.9
022.8



32.019
NE91014.739.610
WNW191011.9
Statistics for the first 17 days of March 2008
Mean21.837.3
14.610.9


27.227

71019.136.411

181017.1
Lowest13.325.707.29.4


17.215
Calm1012.924.46
WSW131011.6
Highest30.240.2034.411.4WNW56
32.045
N201022.639.725
NW301020.6
Total

0.0146.2108.8















Those who measure heatwaves by the Fahrenheit scale will note that the 100 deg F (37.9 deg C) mark has been passed for the last 13 consecutive days. This is a record for an Australian capital city, breaking Perth's 11 day spell of 35+ deg C days set some years ago.

Despite the consistently high temperatures the days have not been identical: most have been sunny and with relatively moderate winds, but there have been some overcast ones where the sun hasn't shone through for long (or at all).

Today's max was 40.5 deg, but a cool change is predicted for tomorrow with a max in the 20s. At 10.45pm the temperature was, according to the BOM website, 28.5 deg, so I hope the prediction comes true. But if it doesn't I, like so many other people, will maintain (or try to maintain) a stoic fortitude in the face of the climatic adversity.

How well have people coped? i think that two things have helped: (1) widespread air conditioning , particularly in public places, and (2) no (or very few) power cuts despite the system being placed under considerable strain.

My house is made of brick and stone, which means that once it heats up it stays heated up. Opening windows at night has sometimes helped a little but, as the BOM stats show, the minimum temp hasn't always dropped very much. I have one airconditioned room, to which I've retreated at times and a cellar, where I've slept very comfortably for a few nights, and to where I'm about to adjourn. i hope to wake up tomorrow to a cool(er), crisp morning much more typical of mid-March in Adelaide.




No comments: