April weather forecast
Mendham, NJ

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Weather in April

April in Mendham, New Jersey, is a moderate spring month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 58.6°F (14.8°C).

Temperature

The onset of April brings a rise in the average high-temperature, elevating from a frosty 46.6°F (8.1°C) in March to a mild 58.6°F (14.8°C). Mendham reports an average low-temperature of 41.5°F (5.3°C) during the nights of April.

Humidity

With an average relative humidity of 75%, April is the least humid month.

Rainfall

In Mendham, in April, during 16.4 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, in Mendham, there are 162.6 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Mendham, in April, snow falls for 0.8 days, with typically accumulated 0.28" (7mm) of snow. Throughout the year, there are 28.5 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

The average length of the day in April in Mendham is 13h and 20min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of April, sunrise is at 5:56 am and sunset at 7:53 pm EDT.

Sunshine

The average sunshine in April is 8.2h.

UV index

In Mendham, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In April, the maximum UV index of 4 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the temperature in April in Mendham?

Mendham in April has an average high-temperature of 58.6°F (14.8°C) and an average low-temperature of 41.5°F (5.3°C).

What is the least humid month in Mendham?

The least humid month in Mendham is April, with an average relative humidity of 75%.

What is the average humidity in April in Mendham?

In Mendham, the average relative humidity in April is 75%.

How many days does it rain in April in Mendham?

In April, in Mendham, the rain falls for 16.4 days. Throughout April, 2.91" (74mm) of precipitation is accumulated.

How much does it snow in Mendham in April?

In April, in Mendham, New Jersey, it is snowing for 0.8 days. Throughout April, 0.28" (7mm) of snow is accumulated.

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

In April, the average day length is 13h and 20min.

When is the sunrise / sunset in April in Mendham?

On the first day of April in Mendham, New Jersey, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:53 pm EDT.

How many hours of sunshine does Mendham have in April?

In Mendham, New Jersey, the average sunshine duration in April is 8.2h.

What is the UV index intensity in April in Mendham?

In Mendham, New Jersey, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Mendham, NJ

Average temperature in April - Mendham, NJ
  • Average high temperature in April: 58.6°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 (35.1°F).

  • Average low temperature in April: 41.5°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in April
Mendham, NJ

Average pressure in April - Mendham, 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
Mendham, NJ

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

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in April
Mendham, NJ

Average humidity in April - Mendham, NJ
  • Average humidity in April: 75%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in April
Mendham, NJ

Average rainfall in April - Mendham, NJ
  • Average rainfall in April: 2.91"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in April
Mendham, NJ

Average rainfall days in April - Mendham, NJ
  • Average rainfall days in April: 16.4 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in April
Mendham, NJ

Average snowfall in April - Mendham, NJ
  • Average snowfall in April: 0.28"

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Mendham, NJ

Average snowfall days in April - Mendham, NJ
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Mendham, 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 1min

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 36min).

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Average sunshine days in April
Mendham, NJ

Average sunshine days in April - Mendham, NJ
  • Average sunshine days in April: 11.8 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in April
Mendham, NJ

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

The months with the highest UV index are June and July (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
Mendham, NJ

Average cloud cover in April - Mendham, NJ
  • Average cloud cover in April: 46

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in April
Mendham, NJ

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

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

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Mendham, New Jersey, USA

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