United States

Delaware Climate

How Delaware's latest month ranks since 1895, the normals at its main weather stations, and the climate page for every town.

How Delaware is running

NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.

August 2026 in Delaware: 77.9°F (+2.4 °F against 1991-2020), the 6th warmest in 132 years on record.

August 2026 in Delaware: 6.57 in (+1.88 in against 1991-2020), the 23rd wettest in 132 years on record.

January to August 2026 in Delaware: 58.1°F (+0.6 °F against 1991-2020), the 18th warmest in 132 years on record.

January to August 2026 in Delaware: 26.29 in (-4.34 in against 1991-2020), the 27th driest in 132 years on record.

Warmest August
78.6°F in 2016
Coolest August
68.6°F in 1927
Wettest August
12.58 in in 1967
Driest August
1.02 in in 2008

Every year since 1895

Each year's average temperature in Delaware against the 1991-2020 average, in °F, 1895 to 2025.-7.5-5-2.50+2.5+5+7.51900192019401960198020002020NOAA NCEI Climate at a Glance

Main weather stations

Annual 1991-2020 normals at the first-order (airport and Weather Service) stations; freeze dates are the median for 32°F.

StationAvg highAvg lowPrecipitationSnowfallLast freezeFirst freeze
Georgetown Sussex CO AP66.9°F48.2°F43.88 inApril 4November 6
Wilmington New Castle CO AP64.8°F46.3°F45.33 in20.2 inApril 7November 1

Frost dates at every station in Delaware

Counties

Towns

Sources

Rankings: NOAA NCEI Climate at a Glance. Normals: NOAA NCEI U.S. Climate Normals, 1991-2020. Both public domain.