Perth weather: Weekend showers may smash November rainfall record

The West Australian
VideoPerth's weather forecast for Friday, November 13.

Perth has recorded its wettest November since the early 1990s as early morning showers ensured the monthly rainfall total was now three times above the average.

64.4mm of rain have fallen in Perth this month, the highest since 1991 and the sixth wettest since the Bureau of Meteorology started keeping records.

November’s month rainfall average 21.7mm and this month is not even halfway over.

More showers are forecast for today and tomorrow, meaning the city could break the November record, set in 1984 when 73.2mm of rain fell.

Perth has also recorded its coldest start to November in eight years with three days where the maximum temperature didn’t get above 19.C.

This wet and chilly end to spring is in sharp contrast to a BoM report, which shows average rainfall in WA’s south-west is continuing to decrease as temperatures rise.

The State of the Climate report, released today by the Bureau of Meteorology and CSIRO, shows a warming temperature has increased the frequency of ’extreme weather events’ such as heatwaves and fire weather.

Australia’s climate has warmed on average by 1.44 degrees since 1910.

Research Director at CSIRO’s Climate Science Centre, Dr Jaci Brown, said while 2019 was the hottest year on record, it wouldn’t be unusual in coming decades.

“In fact, we think of this decade being hot, but this decade will be one of the coolest in the next hundred years,” she said.

BOM Climate Environmental Prediction Services manager, Dr Karl Braganza, said longer fire seasons with more days of extreme risk meant less opportunity to reduce fuel loads during cooler months.

Climate change has influenced bushfire patterns through its impact on temperature, rainfall, and humidity that affects fuel moisture content.

“We don’t necessarily feel the 1.44 degrees increase in Australian average temperature, but we feel those heatwaves and we feel the fire weather,” he said.

PERTH FORECAST

Today: 23C, rain

Saturday: 23C, showers

Sunday: 21C, possible early shower

Monday: 24C, partly cloudy

Tuesday: 23C, partly cloudy

Wednesday: 24C, partly cloudy

With AAP

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