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Sydney's driest start to spring on record

Ben Domensino, Tuesday September 19, 2017 - 17:57 EST

Sydney is having its driest start to spring on record and the city was particularly parched today.

Sydney's dew point reached a low of minus 6.7 degrees at 2pm today, which is the lowest value recorded in the city during daytime hours since last October, based on half hourly observations.

Dew point is a measure of how low the air temperature would need to get for water vapour (gas) to condense into liquid drops. It simply reflects how much moisture is in the air and the lower the dew point, the drier the air.

Dry air also allows heat to escape from your exposed skin more efficiently, making it feel cooler than it actually is outside.

Unsurprisingly, when the thermometer at Sydney's Observatory Hill was registering an air temperature of 23 degrees at 2pm today, it felt more like 15 degrees outside due to a combination of the dry air and wind chill.

Sydney's dry afternoon is the latest in a string of rainless days, with the city currently experiencing its driest start to spring on record.

So far this month, there has only been a paltry 0.2mm of rainfall registered in the gauge at Observatory Hill. This is the lowest amount of rainfall recorded in Sydney during the first 19 days of September since records commenced in 1858.

Looking ahead, forecast models indicate that dry weather will continue to grip the city for at least the rest of this week.

- Weatherzone

© Weatherzone 2017

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