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Climate & Weather Averages in Wilmington, Delaware, USA

Currently: 76 °F. Thunderstorms. Fog. (Weather station: New Castle County Airport, USA). See more current weather

Annual Weather Averages Near Wilmington

Averages are for New Castle County Airport, which is 6 miles from Wilmington.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Wilmington

High Temp: 87 °F

Low Temp: 26 °F

Mean Temp: 55 °F

Precipitation: 3.78"

Humidity: 67%

Dew Point: 44 °F

Wind: 13 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Wilmington

High Temp: 41 °F

Low Temp: 26 °F

Mean Temp: 33 °F

Precipitation: 3.09"

Humidity: 66%

Dew Point: 23 °F

Wind: 15 mph

Pressure: 30.11 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Wilmington

High Temp: 44 °F

Low Temp: 27 °F

Mean Temp: 35 °F

Precipitation: 2.88"

Humidity: 63%

Dew Point: 24 °F

Wind: 15 mph

Pressure: 30.09 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Wilmington

High Temp: 52 °F

Low Temp: 34 °F

Mean Temp: 43 °F

Precipitation: 4.16"

Humidity: 61%

Dew Point: 30 °F

Wind: 16 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Wilmington

High Temp: 64 °F

Low Temp: 43 °F

Mean Temp: 53 °F

Precipitation: 3.51"

Humidity: 61%

Dew Point: 40 °F

Wind: 15 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Wilmington

High Temp: 73 °F

Low Temp: 53 °F

Mean Temp: 63 °F

Precipitation: 3.62"

Humidity: 67%

Dew Point: 52 °F

Wind: 13 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Wilmington

High Temp: 82 °F

Low Temp: 63 °F

Mean Temp: 72 °F

Precipitation: 4.64"

Humidity: 69%

Dew Point: 62 °F

Wind: 12 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Wilmington

High Temp: 87 °F

Low Temp: 68 °F

Mean Temp: 77 °F

Precipitation: 4.46"

Humidity: 69%

Dew Point: 66 °F

Wind: 11 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Wilmington

High Temp: 85 °F

Low Temp: 67 °F

Mean Temp: 76 °F

Precipitation: 3.95"

Humidity: 71%

Dew Point: 65 °F

Wind: 10 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Wilmington

High Temp: 78 °F

Low Temp: 59 °F

Mean Temp: 69 °F

Precipitation: 4.41"

Humidity: 72%

Dew Point: 59 °F

Wind: 12 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Wilmington

High Temp: 67 °F

Low Temp: 47 °F

Mean Temp: 57 °F

Precipitation: 3.77"

Humidity: 72%

Dew Point: 48 °F

Wind: 12 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Wilmington

High Temp: 56 °F

Low Temp: 37 °F

Mean Temp: 46 °F

Precipitation: 3.13"

Humidity: 67%

Dew Point: 36 °F

Wind: 13 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Wilmington

High Temp: 46 °F

Low Temp: 30 °F

Mean Temp: 38 °F

Precipitation: 3.73"

Humidity: 68%

Dew Point: 28 °F

Wind: 14 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthJuly (77 °F avg)
Coldest MonthJanuary (33 °F avg)
Wettest MonthJune (4.64" avg)
Windiest MonthMarch (16 mph avg)
Annual precip.45.35" (per year)

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