Mandurah has copped 38 millimetres of rain in the past 24 hours while it was a 56 millimetre drenching in Dwellingup.
The Bureau of Meteorology said most of that rain would have been late in the evening and into the overnight period for Mandurah.
Since 9am on Tuesday, 38 millimetres of rain has been recorded in Mandurah and 56mm in Dwellingup.
Duty forecaster Noel Puzey said the rainfall figures are not unusual for August with Perth in a position to reach its average in the first 13 days of the month.
The metropolitan area copped 42mm while Bickley received more than 49 millimetres.
The average rainfall for the month in Perth is 122 with around 70 mills of rain falling so far this August.
We can expect more wet and cold conditions today with showers and a possible storm predicted for Mandurah and a maximum temperature of just 14 degrees.
A severe weather warning has been issued for the Perth metro area.
Damaging wind gusts possible in coastal areas between Geraldton and Perth today. Check latest warnings at https://t.co/NikaX4QRKr pic.twitter.com/iaqWSUf2nW
— BOM WA (@BOM_WA) August 9, 2017
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