New World Rainfall Record.
The world record for most precipitation in a 72-hour period was shattered this month when the French island of la reunion recorded 12.9 feet (3929 mms) of rain. La Réunion is a small island in the South Indian Ocean east of Madagascar. Despite the island's small size--about 30 miles across--it has two tall volcanoes that rise over 8,500 feet in altitude.
Réunion already held the world record for a 3-day precipitation event, the 3240 mms that fell during January 1980 in Tropical Cyclone Hyacinthe. Another tropical cyclone--Category 3 Tropical Cyclone Gamede--set the world record this time.

Over 48 hours 2463mm fell at Commerson Crater, almost as much as the existing world record of 2467mm at Aurère in 1958. Over 72 hours 3929mm fell at Commerson Crater, the previous record being 3240mm at Large-Ilet in 1980. Over 4 days 4869mm fell at Commerson Crater, previous world record being 3551mm at the same location. Other world records were broken for falls of duration 5, 6, 7, 8 and 9 days with, respectively, 4979mm, 5075mm, 5400mm, 5510mm and 5512mm at Commerson Crater.

Rain measured in feet,not inches !