Delaware City (DE) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Delaware City.
Climate overview of Delaware City
Delaware City, Delaware, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 5°C (41°F) in January.
With around 1248 mm (49 in) of annual rain/snowfall, Delaware City has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has very warm summers and cold winters. The wettest month is June. The most sunshine falls in July, with an average of 9.2 hours of daily sunshine.
Delaware City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Delaware City - and find the best time to visit.
Monthly Temperature in Delaware City
Depending on the time of the year, temperatures range from very warm to chilly in Delaware City. Average daytime temperatures reach a very warm 31°C (88°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 5°C (41°F).
At night, temperatures range from around 20°C (68°F) in July to -4°C (25°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Delaware City
Delaware City has a relatively rain/snowy climate with high precipitation levels, averaging 1248 mm (49 in) of rain/snowfall annually. Delaware City experiences moderate seasonal variation in rainfall, with monthly averages ranging from 153 mm (6 in) in June, the wettest month, and 76 mm (3 in) in February, the driest month. For more details, please visit our Delaware City Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Delaware City
Delaware City can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Delaware City by Month
The relative humidity is high throughout the year in Delaware City.
The city experiences its highest humidity in September, reaching 72%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Delaware City
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Delaware City
What is the best time to visit Delaware City?
May typically offers the most optimal weather in Delaware City. In contrast, January, February and December tend to have less optimal conditions. Delaware City has very warm summers and cold winters.
What temperatures can I expect in Delaware City?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in July. Nighttime lows range from -4°C (25°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Delaware City get?
Annual rainfall is around 1248 mm (49 in). June is the wettest month with 153 mm (6 in), while February is the driest with 76 mm (3 in).
How sunny is Delaware City?
Delaware City receives around 2,500 hours of sunshine per year. July is the sunniest month with 275 hours, while December is the cloudiest with just 140 hours. Overall, Delaware City enjoys abundant sunshine.
Delaware City 3-Day Forecast
Delaware City (DE) 3-Day Forecast
Delaware City on the map
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