– Share of state experiencing drought conditions (20-year average): 467 sq. mi. (22.8% of land area); 185,881 people (20.7% of population)

— Moderate drought: 231 sq. mi. (11.3% of land area); 84,869 people (9.5% of population)

— Severe drought: 101 sq. mi. (4.9% of land area); 40,603 people (4.5% of population)

— Extreme drought: 25 sq. mi. (1.2% of land area); 13,123 people (1.5% of population)

— Exceptional drought: 3 sq. mi. (0.1% of land area); 984 people (0.1% of population)

As of March 2021, Delaware is experiencing no abnormally dry or drought conditions, but in the early 2000s, the state was crippled by an extended drought for a full year between 2001–2002. By August 2002, nearly three-quarters of the state was suffering under exceptional drought conditions, the most serious classification possible.