The 1931 Atlantic hurricane season included the deadliest hurricane in the history of Belize (then known as British Honduras). A total of 13 tropical storms were recorded during the season, which was the most since 1916. However, only three of them intensified into hurricanes and just one reached major hurricane intensity, which is Category 3 or higher on the modern-day Saffir–Simpson scale. Nine of the tropical cyclones were identified in real-time, while evidence of the existence of four other tropical cyclones was uncovered by the Atlantic hurricane reanalysis project in 2012 and added to the Atlantic hurricane database. Additionally, two of the tropical storms were upgraded to hurricane status as part of the reanalysis.