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 Wilmington
Weather forecast Wilmington

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 30 to September 17, 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 3 to March 7, 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.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Wilmington experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.1 months, from November 23 to March 27, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Wilmington is February, with an average snowfall of 6.0 inches.

The snowless period of the year lasts for 7.9 months, from March 27 to November 23. The least snow falls around July 27, with an average total accumulation of 0.0 inches.

Weather forecast March 27, 2023

Weather forecast March 27, 2023 - P5

Weather 19808

High temperature : 53°F

Low temperature : 40°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 66% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19808 : Moderate

- Air Quality Index : CO : 270.37 ; NH3 : 15.96 ; NO : 0 ; NO2 : 9.51 ; O3 : 82.25 ; PM10 : 10.5 ; PM2.5 : 6.9 ; SO2 : 1.59

Weather 19809

High temperature : 53°F

Low temperature : 40°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 61% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19809 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 19810

High temperature : 52°F

Low temperature : 40°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 61% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19810 : Moderate

- Air Quality Index : CO : 273.71 ; NH3 : 8.11 ; NO : 0 ; NO2 : 8.65 ; O3 : 87.98 ; PM10 : 11.03 ; PM2.5 : 7.63 ; SO2 : 1.97

Weather 19850

High temperature : 54°F

Low temperature : 41°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 64% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19850 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 27526

High temperature : 56°F

Low temperature : 48°F

- Overcast clouds, Wind speed 6.33 mph, wind out of the NNE. Visibility 7 mi, humidity 88% . Chance of Rain : 47 % .

Today's Air Quality - Weather 27526 : Good

- Air Quality Index : CO : 233.65 ; NH3 : 1.33 ; NO : 0 ; NO2 : 4.33 ; O3 : 57.94 ; PM10 : 9.73 ; PM2.5 : 8.19 ; SO2 : 1.71

Weather 19884

High temperature : 53°F

Low temperature : 40°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 64% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19884 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 19885

High temperature : 54°F

Low temperature : 41°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 64% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19885 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 19886

High temperature : 54°F

Low temperature : 41°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 64% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19886 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 20001

High temperature : 55°F

Low temperature : 44°F

- Overcast clouds, Wind speed 0 mph, wind out of the N. Visibility 7 mi, humidity 61% . Chance of Rain : 0 % .

Today's Air Quality - Weather 20001 : Moderate

- Air Quality Index : CO : 487.33 ; NH3 : 2.95 ; NO : 1.44 ; NO2 : 47.98 ; O3 : 8.49 ; PM10 : 16.07 ; PM2.5 : 12.14 ; SO2 : 0.74

Weather 19889

High temperature : 54°F

Low temperature : 41°F

- Overcast clouds, Wind speed 5.75 mph, wind out of the N. Visibility 7 mi, humidity 64% . Chance of Rain : 0 % .

Today's Air Quality - Weather 19889 : Moderate

- Air Quality Index : CO : 283.72 ; NH3 : 9.5 ; NO : 0 ; NO2 : 12.68 ; O3 : 75.82 ; PM10 : 9.95 ; PM2.5 : 6.83 ; SO2 : 1.48

Weather 01852 - Lowell MA

overcast clouds

59°

overcast clouds

Feels like 58°
Sunrise/Sunset - 01852
Sunrise/Sunset

05:19/20:03

Temperature - 01852
High/Low

63°F

/

55°F

Humidity in 01852
Humidity

72%

Pressure
Pressure

1016 hPa

Visibility
Visibility

7 mi

Wind
Wind

12.66 mph