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Perth weather delivers city's wettest November on record and its coolest in 12 years

By Irena Ceranic, Monday November 30, 2020 - 17:58 EDT
ABC image
Some of Perth's November weather was more akin to the city's winter conditions. - ABC

A burst of wet and wintry weather has cemented this November as Perth's wettest on record and the coolest in 12 years.

A cold front, considered unusually strong for this time of year, has brought showers, blustery winds and icy conditions to Western Australia's south.

"It's more of a winter feature, it's a strong system for November," Bureau of Meteorology (BOM) senior forecaster Matt Boterhoven said.

"It brought fairly good rainfall figures, some small hail through parts of the south-west district and adjacent areas, and thunderstorms have brushed the south coast with the passage of the front."

Perth recorded 8.4 millimetres of rain in the 24 hours to 9:00am this morning, bringing the city's total for the month to 92mm ? more than four times its November average of 21.7mm.

It also trumped the amount of rain that fell in July (83.4mm) and comes close to the August total (92.8mm).

"It's the wettest November for Perth metro by a fair distance," Mr Boterhoven said.

"The next closest rainfall figure for November was 73.2mm in 1984 and that's in over 140 years of records."

The mean maximum temperature for the city was 24.7 degrees Celsius, well below the November average of 26.8C and the lowest since 23.6C was recorded in 2008.

Summer outlook a different story

The cool conditions experienced in November are not expected to linger into summer, with a hotter than average season predicted for the west coast.

"The average maximum temperature for December to February is likely to be higher than the long-term average for the far west of WA," Mr Boterhoven said.

BOM's climate outlook shows average daytime temperatures across December to February are also likely to be above average across parts of south-east Australia and the northern coastline.

On the rainfall front, with La Nina the dominant climate driver this summer, wetter-than-average conditions are expected across most of Australia, with the exception of Tasmania's west coast.


© ABC 2020

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