Melbourne was battered by record rainfall on Friday night as thunderstorms swept across the city.
The State Emergency Service received about 320 calls for help, with some 300 of those coming from metropolitan Melbourne. Most calls were for low-level flooding and building damage.
By 8am (AEST) on Saturday, the city had received 48.4mm of rain since 9am on Friday.
The previous June daily record was 44.2mm, which had stood since 22 June, 1904.
"We've had basically our whole month's rainfall within a day," said Bureau of Meteorology senior forecaster James Taylor.
Mr Taylor said the rain was consistent throughout the day on Friday, but became heavy as thunderstorms swept across the city about 11pm.
AAP reports the rain is likely to continue on Saturday and ease to isolated showers on Sunday.