The area south of Perth, has just had its heaviest rain since last winter, more than 50mm in some parts. Showers and thunderstorms reached their peak in the middle of the night to bring widespread 20 to 50mm from Margaret River to Bunbury to Pemberton. Witchcliffe picked up 65mm since 9am yesterday, their highest daily total in more than 11 years. Other wet spots were Pemberton (61mm), Paynedale (58mm) and Ravenscliffe (53mm). For Paynedale and Ravenscliffe this rain is their highest in about three years. Bunbury had 35mm, their highest since winter 2008. Others which had their heaviest falls since last winter were Manjimup and Bridgetown with 35mm each and Mandurah with 23mm. In the Perth area, it generally wasn't quite as heavy. Swanbourne had 29mm including six in just 10 minutes at 11:30pm. In the hills, Bickley had 25mm, whilst in the CBD 17mm fell, which has taken the city to 80mm for the month, about 10mm short of the average. Much of the region is getting close to the monthly average after a dry start. But despite Bridgetown's recent downpour it is still only halfway to the monthly average of 110mm. Today, showers will become light before it dries out tonight.