Henlopen Keys Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Henlopen Keys.
Climate overview of Henlopen Keys
Henlopen Keys, 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 7°C (45°F) in January.
The city receives considerable rain/snowfall, with around 1219 mm (48 in) annually. October is the wettest month. It has very warm summers and cold winters.
Henlopen Keys Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Henlopen Keys - and find the best time to visit.
Monthly Temperature in Henlopen Keys
Depending on the time of the year, temperatures range from very warm to chilly in Henlopen Keys. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 7°C (45°F) in the coolest month, January.
Nights vary from 22°C (72°F) in July to around -2°C (28°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Henlopen Keys
Henlopen Keys has a relatively rain/snowy climate with high precipitation levels, averaging 1219 mm (48 in) of rain/snowfall annually. Henlopen Keys offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month October (140 mm (5.5 in)) and the driest month May (78 mm (3.1 in)) is not too significant. For more details, please visit our Henlopen Keys Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Henlopen Keys
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
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Henlopen Keys
What is the best time to visit Henlopen Keys?
May typically offers the most optimal weather in Henlopen Keys. In contrast, January, February and December tend to have less optimal conditions. Henlopen Keys has very warm summers and cold winters.
What temperatures can I expect in Henlopen Keys?
Daytime highs range from 7°C (45°F) in January to 31°C (88°F) in July. Nighttime lows range from -2°C (28°F) to 22°C (72°F). Temperatures vary considerably through the year.
How much rain does Henlopen Keys get?
Annual rainfall is around 1219 mm (48 in). October is the wettest month with 140 mm (5.5 in), while May is the driest with 78 mm (3.1 in).
Henlopen Keys 3-Day Forecast
Henlopen Keys on the map
Henlopen Keys is highlighted - select any city to see its climate.
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