Delaware Weather

Delaware climate

Delaware has a humid subtropical climate in the south and a humid continental climate in the north, with moderate temperatures year-round thanks to its proximity to the Atlantic Ocean and Delaware Bay. The state receives about 45 inches of precipitation annually, spread relatively evenly throughout the year. Its flat terrain and low elevation make it particularly susceptible to coastal flooding.

The state's location on the Delmarva Peninsula exposes it to nor'easters that can bring heavy precipitation and strong winds, particularly during winter and early spring. Summer thunderstorms are common and can produce heavy rain, lightning, and occasional tornadoes. Delaware's coastal communities face increasing risks from storm surge and sea-level rise.

Summers are warm and humid with average highs in the upper 80s, while winters are cool with average lows in the mid-20s. Snowfall is moderate, typically ranging from 12 to 20 inches per season, though occasional major storms can deliver significantly more. The beach towns along the Atlantic coast enjoy sea breezes that keep summer temperatures a few degrees cooler than inland areas.