April weather forecast and climate
Lewes, DE

Weather in April

April in Lewes, Delaware, is a mild spring month, with average temperature varying between 48.6°F (9.2°C) and 57.6°F (14.2°C).

Temperature

In Lewes, the average high-temperature in April increases, from a frosty 47.8°F (8.8°C) in March, to a moderate 57.6°F (14.2°C). In Lewes, Delaware, in April, the average low-temperature is 48.6°F (9.2°C).

Humidity

The average relative humidity is 76%.

Rainfall

In Lewes, Delaware,, it is raining for 15.6 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, in Lewes, Delaware, there are 173.6 rainfall days, and 36.97" (939mm) of precipitation is accumulated.

Snowfall

In Lewes snow does not fall through October.

Ocean temperature

In Lewes, the average water temperature is 48.4°F (9.1°C).
Note: Swimming in 48.4°F (9.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In Lewes, the average length of the day is 13.3h.

Sunshine

The average sunshine in Lewes is 9h.

UV index

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the average person.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in April in Lewes?

In April, the average relative humidity is 76%.

How much does it rain in Lewes in April?

In Lewes, Delaware, in April, it is raining for 15.6 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Lewes?

April through October are months without snowfall in Lewes, Delaware.

Does it snow in Lewes in April?

In April, in Lewes, Delaware, it doesn't snow. March is the latest month when it typically snows.

What is the ocean temperature in April in Lewes?

In April, the average ocean temperature is 48.4°F (9.1°C). Swimming in 48.4°F (9.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Lewes have in April?

The average length of the day in April in Lewes is 13.3h.

How long on average sun shines in April in Lewes?

In April, the average sunshine in Lewes is 9h.

What is the UV index intensity in April in Lewes?

In Lewes, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in April
Lewes, DE

Average temperature in April - Lewes, DE
  • Average high temperature in April: 57.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in April: 48.6°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (32°F).

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Average pressure in April
Lewes, DE

Average pressure in April - Lewes, DE
  • Average pressure in April: 30"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in April
Lewes, DE

Average wind speed in April - Lewes, DE
  • Average wind speed in April: 11.9mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in April
Lewes, DE

Average humidity in April - Lewes, DE
  • Average humidity in April: 76%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in April
Lewes, DE

Average rainfall in April - Lewes, DE
  • Average rainfall in April: 2.56"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.2").

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Average rainfall days in April
Lewes, DE

Average rainfall days in April - Lewes, DE
  • Average rainfall days in April: 15.6 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.6 days).

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Average snowfall in April
Lewes, DE

Average snowfall in April - Lewes, DE
  • Average snowfall in April: 0"

The month with the highest snowfall is January (0.98").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Lewes, DE

Average snowfall days in April - Lewes, DE
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (3.7 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average sea temperature in April
Lewes, DE

Average sea temperature in April - Lewes, DE
  • Average sea temperature in April: 48.5°F

The best month for swimming (with the highest average sea temperature) is August (76.9°F).
The coldest month (with the lowest average sea temperature) is February (40.7°F).

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Average daylight in April /
Average sunshine in April
Lewes, DE

Average daylight in April / Average sunshine in April - Lewes, DE
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in April: 9h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in April
Lewes, DE

Average sunshine days in April - Lewes, DE
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in April
Lewes, DE

Average UV index in April - Lewes, DE
  • Average UV index in April: 4

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in April
Lewes, DE

Average cloud cover in April - Lewes, DE
  • Average cloud cover in April: 39

Months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in April
Lewes, DE

Average visibility in April - Lewes, DE
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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