April weather forecast
Clayton, DE

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Weather in April

April witnesses a welcome shift towards increased warmth, with temperatures progressing steadily from the colder climes of March. Accompanying the rise in mercury are longer daylight hours, enhancing visibility throughout Clayton, Delaware. An interesting interplay is observed between decreasing snowfall and increasing rainfall, with the latter reaching 2.64" (67mm). Wind speeds start to decline, bringing respite from the chilling gusts of the previous months. As the temperatures elevate, the cool embrace of winter takes a backseat marking the transition into pleasant spring.

Temperature

With the onset of April, the average high-temperature slightly shifts from March's fresh 50.2°F (10.1°C) to a comfortable 62.2°F (16.8°C). Throughout April, Clayton witnesses a consistent average low-temperature of 46.4°F (8°C).

Humidity

April is the least humid month in Clayton, with an average relative humidity of 73%.

Rainfall

In Clayton, in April, during 15.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Clayton, during the entire year, the rain falls for 169.2 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. April is the last month it regularly snows in Clayton. During 0.2 snowfall days, in April, Clayton aggregates 0.12" (3mm) of snow. In Clayton, during the entire year, snow falls for 14.4 days and aggregates up to 7.44" (189mm) of snow.

Daylight

In Clayton, the average length of the day in April is 13h and 16min.
On the first day of April, sunrise is at 6:45 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:55 pm EDT.

Sunshine

In Clayton, the average sunshine in April is 8.8h.

UV index

The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 4 during April morphs into the following directions:
Heed the precautions - It is counselled to guard against solar damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

An average high-temperature, in April, in Clayton, is 62.2°F (16.8°C) and the average low-temperature is 46.4°F (8°C).

What is the least humid month?

With an average relative humidity of 73%, April is the least humid month.

What is the average humidity in April in Clayton?

In April, the average relative humidity in Clayton is 73%.

How much does it rain in April?

In Clayton, in April, during 15.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

What is the last month it snows?

April is the last month it regularly snows in Clayton. During 0.2 snowfall days, in April, Clayton aggregates 0.12" (3mm) of snow.

What is the average length of the day in April?

The average day length in April is 13h and 16min.

When is the sunrise / sunset in April?

On the first day of April in Clayton, sunrise is at 6:45 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:55 pm EDT.

How many hours of sunshine does Clayton have in April?

The average sunshine duration in April is 8.8h.

What is the UV index intensity in April?

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Clayton, DE

Average temperature in April - Clayton, DE
  • Average high temperature in April: 62.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in April: 46.4°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in April
Clayton, DE

Average pressure in April - Clayton, DE
  • Average pressure in April: 29.99"Hg

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

Average wind speed in April
Clayton, DE

Average wind speed in April - Clayton, DE
  • Average wind speed in April: 9.4mph

The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in April
Clayton, DE

Average humidity in April - Clayton, DE
  • Average humidity in April: 73%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in April
Clayton, DE

Average rainfall in April - Clayton, DE
  • Average rainfall in April: 2.64"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in April
Clayton, DE

Average rainfall days in April - Clayton, DE
  • Average rainfall days in April: 15.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in April
Clayton, DE

Average snowfall in April - Clayton, DE
  • Average snowfall in April: 0.12"

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Clayton, DE

Average snowfall days in April - Clayton, DE
  • Average snowfall days in April: 0.2 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in April / Average sunshine in April - Clayton, DE
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in April: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in April
Clayton, DE

Average sunshine days in April - Clayton, DE
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in April
Clayton, DE

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

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

Average cloud cover in April
Clayton, DE

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

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in April
Clayton, DE

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

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

Clayton, Delaware, USA

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