April weather forecast
Dover, DE

The public Archives building in Dover, Delaware, between two large trees
The public Archives building in Dover, Delaware, between two large trees

Weather in April

April in Dover, Delaware, is a comfortable spring month, with average temperature varying between 46.9°F (8.3°C) and 61°F (16.1°C).

Temperature

In Dover, the average high-temperature rises, from a frosty 49.6°F (9.8°C) in March, to a comfortable 61°F (16.1°C). In April, in Dover, the average low-temperature is 46.9°F (8.3°C).

Humidity

Months with the lowest humidity in Dover are January, March, April and November, with an average relative humidity of 74%.

Rainfall

In Dover, during 13.8 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 152.3 rainfall days, and 26.3" (668mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

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

Sunshine

In Dover, the average sunshine is 8.7h.

UV index

In April, the average daily maximum UV index in Dover is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 in April transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What are the least humid months in Dover?

January, March, April and November, with an average relative humidity of 74%, are the least humid months in Dover.

What is the average humidity in April in Dover?

In Dover, Delaware, the average relative humidity in April is 74%.

How many days does it rain in April in Dover?

In Dover, in April, it is raining for 13.8 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Dover?

April through November are months without snowfall in Dover, Delaware.

Does it snow in Dover in April?

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

How many hours of daylight does Dover have in April?

In April, the average length of the day in Dover is 13.3h.

How long on average sun shines in April in Dover?

In Dover, the average sunshine in April is 8.7h.

How high is the UV index in April in Dover?

In April, the average daily maximum UV index in Dover is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in April
Dover, DE

Average temperature in April - Dover, DE
  • Average high temperature in April: 16.1°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (4.3°C).

  • Average low temperature in April: 8.3°C

The month with the highest average low temperature is July (21.1°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).

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Average pressure in April
Dover, DE

Average pressure in April - Dover, DE
  • Average pressure in April: 1015.7mbar

The month with the highest atmospheric pressure is November (1020.1mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

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Average wind speed in April
Dover, DE

Average wind speed in April - Dover, DE
  • Average wind speed in April: 15.9km/h

The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

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Average humidity in April
Dover, DE

Average humidity in April - Dover, DE
  • Average humidity in April: 74%

The month with the highest relative humidity is May (79%).
Months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in April
Dover, DE

Average rainfall in April - Dover, DE
  • Average rainfall in April: 45mm

The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is January (37mm).

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Average rainfall days in April
Dover, DE

Average rainfall days in April - Dover, DE
  • Average rainfall days in April: 13.8 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in April
Dover, DE

Average snowfall in April - Dover, DE
  • Average snowfall in April: 0mm

The month with the highest snowfall is January (42mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in April
Dover, DE

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

The month with the highest number of snowfall days is January (3.5 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in April / Average sunshine in April - Dover, 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: 8.7h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in April
Dover, DE

Average sunshine days in April - Dover, DE
  • Average sunshine days in April: 14.4 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in April
Dover, DE

Average UV index in April - Dover, 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
Dover, DE

Average cloud cover in April - Dover, DE
  • Average cloud cover in April: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in April
Dover, DE

Average visibility in April - Dover, DE
  • Average visibility in April: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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