Greatest rainfall 24 hours
Who
Unknown
What
1870 millimetre(s)
Where
Indian Ocean (Cilaos,Reunion)

A record 1,870mm (73 in) of rain fell in 24 hours in Cilaos (alt. 1,200m 3,940ft), Reunion, Indian Ocean on 15 and 16 Mar 1952. This is equal to 7,554 tonnes of rain per acre.