THE rainfall event that hit Brisbane on Friday made it the city's wettest May day in 175 years.
The deluge saw the Brisbane city gauge record 183 millimetres in the 24 hours to 9am Saturday, the most since records began in 1840.
Forecaster Kev Hutchins from the Bureau of Meteorology said it was also the city's wettest calendar day of any month since 1989.
The biggest single rainfall was recorded at Caboolture, which received 333 millimetres. Of that, 277mm fell within three hours during Friday afternoon.
A number of places around South East Queensland recorded their wettest May days since 1996: Brisbane airport with 129mm, Archerfield with 142mm and 115mm at Toowoomba.