The day with the highest recorded rainfall in a 24-hour period globally was January 8, 1966, when 1,825 millimeters (71.8 inches) of rain fell at Foc-Foc on the French island of Réunion during Tropical Cyclone Denise
. In the United States, the highest 24-hour rainfall record for the contiguous 48 states is 42 inches, set in Alvin, Texas, on July 25-26, 1979, during Tropical Storm Claudette. More recently, Florida experienced record-breaking rainfall on June 11, 2024, with up to 10 inches in some locations and 6.5 inches recorded at a National Weather Service station in Sarasota within 24 hours, an event considered to be a 500- to 1,000-year occurrence
. Thus, the absolute highest recorded rainfall in one day is from Réunion Island on January 8, 1966, while the U.S. record is from Alvin, Texas, in July 1979.
