Perth is on track to record its coldest day in more than half a century, with WA’s capital reaching a chilly top of just 11.4C on Monday.

A cold air mass behind a weekend front, coupled with ongoing rain, has helped suppress the temperature to a level not seen since July 1975.

WATCH THE VIDEO ABOVE: Perth shivers through city’s coldest day in 50 years.

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The city reached its top just after 2.30pm.

Without a burst of heat before 9am Tuesday (the bureau records from 9am to 9am), it will also mean a new August record.

Perth’s current coldest August maximum of 12.1C was set at the city’s weather station in Mt Lawley on August 3, 2020.

Just a week out from spring, the city has also been whitewashed by blankets of hail and soaked in heavy rain.

Perth has exceeded the average monthly rainfall for June, July and August, something that has not happened since 1996.

“I thought I would move here and it would be nice, warm summer — but then I got here and it’s just been raining,” one new Aussie resident told 7NEWS.

“It’s been so cold.”

Perth’s wettest August was in 2018 when 186mm of rainfall was recorded.

But that could soon be broken, with 177mm falling already and six days still to go in the month.

“It’s possible we could see up to 15mm in the next couple of days,” the Bureau of Meteorology’s senior forecaster Luke Huntington said.