April weather forecast
Whippany, NJ

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Weather in April

April in Whippany, New Jersey, is a mild spring month, with an average temperature varying between 58.3°F (14.6°C) and 41.7°F (5.4°C).

Temperature

April's arrival brings a temperature shift, moving from a frosty 46°F (7.8°C) in March to a moderate 58.3°F (14.6°C). Throughout April, an average nighttime temperature of 41.7°F (5.4°C) is experienced.

Humidity

April is the least humid month, with an average relative humidity of 74%.

Rainfall

In Whippany, New Jersey, in April, during 15.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Whippany. In April, in Whippany, New Jersey, it is snowing for 0.7 days. Throughout April, 0.2" (5mm) of snow is accumulated. In Whippany, New Jersey, during the entire year, snow falls for 24 days and aggregates up to 9.72" (247mm) of snow.

Daylight

In April, the average length of the day is 13h and 20min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of April, in Whippany, sunrise is at 5:56 am and sunset at 7:53 pm EDT.

Sunshine

In April, the average sunshine in Whippany is 8h.

UV index

The average daily maximum UV index in April in Whippany, New Jersey, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 4 in April translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the usual temperature for Whippany in April?

The high-temperature, in April, in Whippany, records 58.3°F (14.6°C), while the low-temperature is 41.7°F (5.4°C).

What is the least humid month in Whippany?

With an average relative humidity of 74%, April is the least humid month in Whippany.

What is the average humidity in April in Whippany?

The average relative humidity in April in Whippany, New Jersey, is 74%.

How much does it rain in Whippany in April?

In Whippany, in April, during 15.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How much does it snow in Whippany in April?

In Whippany, in April, during 0.7 snowfall days, 0.2" (5mm) of snow is typically accumulated.

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

The average day length in April in Whippany, New Jersey, is 13h and 20min.

When is the sunrise / sunset in April in Whippany?

In April, on the first day of the month, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of the month, in Whippany, sunrise is at 5:56 am and sunset at 7:53 pm EDT.

How many hours of sunshine does Whippany have in April?

In April, the average sunshine duration in Whippany, New Jersey, is 8h.

What is the UV index reading in April in Whippany?

In Whippany, New Jersey, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Whippany, NJ

Average temperature in April - Whippany, NJ
  • Average high temperature in April: 58.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in April: 41.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in April
Whippany, NJ

Average pressure in April - Whippany, NJ
  • Average pressure in April: 29.98"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
Whippany, NJ

Average wind speed in April - Whippany, NJ
  • Average wind speed in April: 8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in April
Whippany, NJ

Average humidity in April - Whippany, NJ
  • Average humidity in April: 74%

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in April
Whippany, NJ

Average rainfall in April - Whippany, NJ
  • Average rainfall in April: 2.24"

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

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Average rainfall days in April
Whippany, NJ

Average rainfall days in April - Whippany, NJ
  • Average rainfall days in April: 15.4 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in April
Whippany, NJ

Average snowfall in April - Whippany, NJ
  • Average snowfall in April: 0.2"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in April
Whippany, NJ

Average snowfall days in April - Whippany, NJ
  • Average snowfall days in April: 0.7 days

The month with the highest number of snowfall days is February (6.8 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
Whippany, NJ

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in April
Whippany, NJ

Average sunshine days in April - Whippany, NJ
  • Average sunshine days in April: 12.5 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in April
Whippany, NJ

Average UV index in April - Whippany, NJ
  • Average UV index in April: 4

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

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Average cloud cover in April
Whippany, NJ

Average cloud cover in April - Whippany, NJ
  • Average cloud cover in April: 47

The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in April
Whippany, NJ

Average visibility in April - Whippany, NJ
  • Average visibility in April: 6mi

The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).

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Whippany, New Jersey, USA

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