City downpour of 25mm brings wettest March in 42 years A STRONG cold front delivered nearly 25mm to the metropolitan area, giving Perth its wettest March in 42 years. The rain started about 9pm last night and set in, with Perth recording 24.6mm and Swanbourne nearly 27mm to 9am today. Almost 70mm of rain was dumped across the metropolitan area this month, including last night's downpour. WA Bureau of Meteorology forecaster Neil Bennett said it was the wettest March since 1971 and the fourth wettest on record. More PerthNow weather But in 2010, there was 40.4mm of rain in March, proving the month was often ``hit and miss" with its rainfall, Mr Bennett said. ``In 2010, all the rainfall came in one day, in one thunderstorm, which was the infamous Perth hail storm," he said. Heavy rain across Perth, South West In the South West, Harvey got 30mm, Windy Harbour 25mm, Witchcliffe 24mm, Cape Leeuwin 14mm, and Bunbury and Bridgetown 15mm. Dalwallinu, 250km north-east of the city, got nearly 19mm and in the Great Southern, Wagin recorded 34mm and Wandering 22mm and Lake Grace, 350km south-east of Perth, had nearly 14mm. On the south coast Albany Airport had 33mm, while the town recorded 21mm. Esperance got 18mm. Perth is in for a maximum of just 21C today with rain easing to showers during the morning.