April weather forecast
Whippany, NJ

Share

Weather in April

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

Temperature

With the onset of April, Whippany sees a temperature rise, with the average high-temperature moving from March's chilly 46°F (7.8°C) to a moderate 58.3°F (14.6°C). The nights of April anticipate an average low-temperature of 41.7°F (5.4°C).

Humidity

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

Rainfall

In Whippany, during April, the rain falls for 15.4 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Whippany, the average length of the day in April 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, 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

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during April leads to these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Whippany in April?

Whippany in April has an average high-temperature of 58.3°F (14.6°C) and an average low-temperature of 41.7°F (5.4°C).

What is the least humid month?

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

What is the average humidity in April?

In April, the average relative humidity is 74%.

How much does it rain in April?

In Whippany, in April, it is raining for 15.4 days, with typically 2.24" (57mm) of accumulated precipitation.

How much does it snow 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?

The average day length in April is 13h and 20min.

When are sunrise and sunset in April?

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, sunrise is at 5:56 am and sunset at 7:53 pm EDT.

How long on average sun shines in April?

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

What is the UV index reading in April?

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Whippany, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location