September 1–4, 2012 – The remnants of Hurricane Isaac move over the eastern coast, causing heavy rains over Delaware and other east coast states. October 29–30, 2012 – Hurricane Sandy affects the entire state. September 19, 2017 – Waves from Hurricane Jose cause coastal flooding in Delaware.

While Delaware rarely experiences direct "hits" from major landfalling hurricanes due to its sheltered position in the Mid-Atlantic, the state is frequently impacted by the remnants of powerful storms. In recorded history, only a handful of storms have brought sustained hurricane-force winds directly to the state, such as the "Vagabond Hurricane" of 1903. More recently, Hurricane Sandy in 2012 caused massive coastal flooding and wind damage, though it technically made landfall in neighboring New Jersey. Other significant events include Hurricane Jeanne in 2004, which spawned a rare F2 tornado near New Castle Airport, and Hurricane Floyd in 1999, which brought record-breaking rainfall and inland flooding. Because Delaware is low-lying and coastal, even "glancing blows" or tropical storms can cause significant beach erosion, power outages, and tidal flooding along the Delaware Bay and Atlantic coastline. Residents are always advised to maintain a hurricane plan, as the state’s narrow geography makes it susceptible to the wide-reaching wind and rain bands of storms moving up the Eastern Seaboard.