Climate and Average Weather Year Round in Wilmington Delaware, United States

In Wilmington, the summers are warm, humid, and wet; the winters are very cold and snowy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 26°F to 86°F and is rarely below 13°F or above 93°F.

Weather forecast in Wilmington Delaware

Based on the tourism score, the best times of year to visit Wilmington for warm-weather activities are from early June to early July and from early August to late September.

Average Temperature in Wilmington 

The hot season lasts for 3.6 months, from May 29 to September 16, with an average daily high temperature above 77°F. The hottest month of the year in Wilmington is July, with an average high of 85°F and low of 69°F.

The cold season lasts for 3.1 months, from December 2 to March 6, with an average daily high temperature below 49°F. The coldest month of the year in Wilmington is January, with an average low of 27°F and high of 40°F.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Wilmington experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Wilmington. The month with the most rain in Wilmington is September, with an average rainfall of 3.6 inches.

The month with the least rain in Wilmington is February, with an average rainfall of 2.1 inches.

Weather forecast August 14th, 2024

Weather forecast August 14th, 2024

Weather 19895 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19895 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19894 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19894 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19893 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19893 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19892 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19892 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19891 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19891 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19890 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19890 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19889 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19889 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19887 - Wilmington DE

High temperature : 72°F

Low temperature : 66°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 68% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19887 : Good

- Air Quality Index : CO : 270.37 ; NH3 : 1.63 ; NO : 0.01 ; NO2 : 11.65 ; O3 : 26.82 ; PM10 : 4.62 ; PM2.5 : 3.02 ; SO2 : 0.82

Weather 19886 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19886 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 19885 - Wilmington DE

High temperature : 72°F

Low temperature : 67°F

- Overcast clouds, Wind speed 3.44 mph, wind out of the WNW. Visibility 7 mi, humidity 63% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19885 : Good

- Air Quality Index : CO : 313.76 ; NH3 : 2.63 ; NO : 0.01 ; NO2 : 21.42 ; O3 : 22.53 ; PM10 : 6.65 ; PM2.5 : 4.76 ; SO2 : 1.09

Weather 01852 - Lowell MA

clear sky

82°

clear sky

Feels like 82°
Sunrise/Sunset - 01852
Sunrise/Sunset

06:26/18:53

Temperature - 01852
High/Low

85°F

/

80°F

Humidity in 01852
Humidity

38%

Pressure
Pressure

1024 hPa

Visibility
Visibility

7 mi

Wind
Wind

4.61 mph