1936 Northeastern United States flood

The 1936 Northeastern United States flood was a historic flood that occurred across the Northeastern United States, as well as the Mid-Atlantic region and Ohio, in March 1936. Record-setting flooding after a combination of a particularly precipitation-heavy winter and large amounts of rainfall in March caused severe damage across the region.

Record heights were recorded in many rivers, including the Connecticut River, which peaked at 37.6 feet (11.5 m) in Hartford, the Merrimack River, the Pemigewasset River, and the Androscoggin River.

The flood led to an estimated 150 to 200 deaths across the Northeast, and hundreds of millions of dollars in damage in 1936 dollars.^: 2 $100 million in 1936 dollars is equivalent in purchasing power to about $2.2 billion in 2023.