April weather forecast
Allentown, NJ

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Weather in April

April in Allentown, New Jersey, is a refreshing spring month, with an average temperature fluctuating between 60.4°F (15.8°C) and 43.9°F (6.6°C).

Temperature

As Allentown welcomes April, the average high-temperature sees a rise, transitioning from a chilly 48.7°F (9.3°C) in March to a mild 60.4°F (15.8°C). April nights in Allentown observe an average temperature dip to a frosty 43.9°F (6.6°C).

Humidity

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

Rainfall

In Allentown, New Jersey, in April, during 14.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, in Allentown, there are 152.9 rainfall days, and 28.78" (731mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In April, it is snowing for 0.3 days. Throughout April, 0.08" (2mm) of snow is accumulated. In Allentown, during the entire year, snow falls for 17.7 days and aggregates up to 8.43" (214mm) of snow.

Daylight

In April, the average length of the day in Allentown is 13h and 18min.
On the first day of April in Allentown, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:52 pm EDT.

Sunshine

In April, the average sunshine in Allentown is 8.4h.

UV index

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 4 during April translates into the following directions:
Take necessary precautions - Defending against sun damage is advocated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What is the temperature in April in Allentown?

The average high-temperature and low-temperature in Allentown, New Jersey, during April are 60.4°F (15.8°C) and 43.9°F (6.6°C) respectively.

What is the least humid month in Allentown?

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

What is the average humidity in April in Allentown?

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

How many days does it rain in April in Allentown?

In Allentown, New Jersey, in April, it is raining for 14.1 days, with typically 2.2" (56mm) of accumulated precipitation.

How many days does it snow in April in Allentown?

In Allentown, during April, snow falls for 0.3 days and regularly aggregates up to 0.08" (2mm) of snow.

What is the average length of the day in April in Allentown?

In April, the average day length in Allentown, New Jersey, is 13h and 18min.

What time are sunrise and sunset in April in Allentown?

On the first day of April in Allentown, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:52 pm EDT.

How long on average sun shines in April in Allentown?

In April, the average sunshine duration is 8.4h.

What is the UV index intensity in April in Allentown?

In April, the average daily maximum UV index in Allentown is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Allentown, NJ

Average temperature in April - Allentown, NJ
  • Average high temperature in April: 60.4°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 (37.4°F).

  • Average low temperature in April: 43.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in April
Allentown, NJ

Average pressure in April - Allentown, NJ
  • Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in April
Allentown, NJ

Average wind speed in April - Allentown, NJ
  • Average wind speed in April: 8.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in April
Allentown, NJ

Average humidity in April - Allentown, NJ
  • Average humidity in April: 73%

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

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Average rainfall in April
Allentown, NJ

Average rainfall in April - Allentown, NJ
  • Average rainfall in April: 2.2"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in April
Allentown, NJ

Average rainfall days in April - Allentown, NJ
  • Average rainfall days in April: 14.1 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in April
Allentown, NJ

Average snowfall in April - Allentown, NJ
  • Average snowfall in April: 0.08"

The month with the highest snowfall is March (3.11").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in April
Allentown, NJ

Average snowfall days in April - Allentown, NJ
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Allentown, NJ

Average daylight in April / Average sunshine in April - Allentown, NJ
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in April: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in April
Allentown, NJ

Average sunshine days in April - Allentown, NJ
  • Average sunshine days in April: 14.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11 days).

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Average UV index in April
Allentown, NJ

Average UV index in April - Allentown, NJ
  • 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, February, November and December (UV index 2).

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Average cloud cover in April
Allentown, NJ

Average cloud cover in April - Allentown, NJ
  • Average cloud cover in April: 44

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in April
Allentown, NJ

Average visibility in April - Allentown, NJ
  • 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).

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Allentown, New Jersey, USA

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