April weather forecast
Caldwell, NJ

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Weather in April

April in Caldwell, New Jersey, is a moderate spring month, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 42.3°F (5.7°C).

Temperature

April witnesses an increase in the average high-temperature, moving from a frosty 46°F (7.8°C) in March to a mild 58.5°F (14.7°C). Caldwell observes an average nighttime temperature of 42.3°F (5.7°C) during April.

Humidity

April and August, with an average relative humidity of 73%, are the least humid months in Caldwell.

Rainfall

In Caldwell, in April, during 15.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Caldwell, there are 158 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Caldwell are January through May, November and December. In Caldwell, New Jersey, during April, snow falls for 0.7 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, there are 24.3 snowfall days, and 9.96" (253mm) of snow is accumulated.

Daylight

In Caldwell, the average length of the day in April is 13h and 20min.
On the first day of April, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:52 pm EDT.

Sunshine

The average sunshine in April is 8.2h.

UV index

In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in April in Caldwell?

In Caldwell, in April, the average high-temperature is 58.5°F (14.7°C), and the average low-temperature is 42.3°F (5.7°C).

What is the least humid month in Caldwell?

The months with the lowest humidity are April and August, with an average relative humidity of 73%.

What is the average humidity in April in Caldwell?

The average relative humidity in April in Caldwell is 73%.

How much does it rain in Caldwell in April?

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

How much does it snow in Caldwell in April?

In Caldwell, New Jersey, during April, snow falls for 0.7 days and regularly aggregates up to 0.16" (4mm) of snow.

How many hours of daylight does Caldwell have in April?

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

What time are sunrise and sunset in April in Caldwell?

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 5:55 am and sunset at 7:52 pm EDT.

How many hours of sunshine does Caldwell have in April?

In April, the average sunshine duration is 8.2h.

What is the UV index reading in April in Caldwell?

In Caldwell, New Jersey, the average daily maximum UV index in April is 4. A UV Index reading 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
Caldwell, NJ

Average temperature in April - Caldwell, NJ
  • Average high temperature in April: 58.5°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in April: 42.3°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in April
Caldwell, NJ

Average pressure in April - Caldwell, 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
Caldwell, NJ

Average wind speed in April - Caldwell, NJ
  • Average wind speed in April: 8.1mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in April
Caldwell, NJ

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

The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).

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Average rainfall in April
Caldwell, NJ

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

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").

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Average rainfall days in April
Caldwell, NJ

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

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in April
Caldwell, NJ

Average snowfall in April - Caldwell, NJ
  • Average snowfall in April: 0.16"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in April
Caldwell, NJ

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

The month with the highest number of snowfall days is February (7 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
Caldwell, NJ

Average daylight in April / Average sunshine in April - Caldwell, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in April
Caldwell, NJ

Average sunshine days in April - Caldwell, NJ
  • Average sunshine days in April: 12.7 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index in April
Caldwell, NJ

Average UV index in April - Caldwell, 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
Caldwell, NJ

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

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

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Average visibility in April
Caldwell, NJ

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

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

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Caldwell, New Jersey, USA

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