April weather forecast
Robertsville, NJ

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Weather in April

April is a mild spring month in Robertsville, New Jersey, with an average temperature fluctuating between 58.1°F (14.5°C) and 44.4°F (6.9°C).

Temperature

As March gives way to April, the average high-temperature displays an increase, moving from a frosty 46.9°F (8.3°C) to a moderate 58.1°F (14.5°C). Robertsville's average low-temperature is measured at a frosty 44.4°F (6.9°C) during April.

Humidity

January, March, April, August and November, with an average relative humidity of 74%, are the least humid months in Robertsville.

Rainfall

In Robertsville, in April, it is raining for 15.4 days, with typically 2.32" (59mm) of accumulated precipitation. In Robertsville, New Jersey, during the entire year, the rain falls for 159.5 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

Months with snowfall in Robertsville are January through April, October through December. April is the last month it regularly snows in Robertsville. During 0.4 snowfall days, in April, Robertsville aggregates 0.2" (5mm) of snow. Throughout the year, there are 19.1 snowfall days, and 7.64" (194mm) of snow is accumulated.

Daylight

The average length of the day in April in Robertsville, New Jersey, is 13h and 19min.
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 5:56 am and sunset at 7:51 pm EDT.

Sunshine

The average sunshine in April is 8.5h.

UV index

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 4 during April translates into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Robertsville?

In Robertsville, 58.1°F (14.5°C) is the average high-temperature and 44.4°F (6.9°C) is the average low-temperature during April.

What are the least humid months in Robertsville?

January, March, April, August and November, with an average relative humidity of 74%, are the least humid months in Robertsville.

What is the average humidity in April in Robertsville?

In Robertsville, New Jersey, the average relative humidity in April is 74%.

How many days does it rain in April in Robertsville?

In Robertsville, in April, it is raining for 15.4 days, with typically 2.32" (59mm) of accumulated precipitation.

What is the last month it snows in Robertsville?

April is the last month it regularly snows in Robertsville. During 0.4 snowfall days, in April, Robertsville aggregates 0.2" (5mm) of snow.

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

The average day length in April is 13h and 19min.

What time are sunrise and sunset in April in Robertsville?

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 7:51 pm EDT.

How long on average sun shines in April in Robertsville?

In April, the average sunshine duration in Robertsville is 8.5h.

How high is the UV index in April in Robertsville?

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

Average temperature in April
Robertsville, NJ

Average temperature in April - Robertsville, NJ
  • Average high temperature in April: 58.1°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in April: 44.4°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in April
Robertsville, NJ

Average pressure in April - Robertsville, 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
Robertsville, NJ

Average wind speed in April - Robertsville, NJ
  • Average wind speed in April: 9.4mph

The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in April
Robertsville, NJ

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

The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are January, March, April, August and November (74%).

Average rainfall in April
Robertsville, NJ

Average rainfall in April - Robertsville, NJ
  • Average rainfall in April: 2.32"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in April
Robertsville, NJ

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

The month with the highest number of rainy days is July (16.4 days).
The months with the least rainy days are January and November (9.8 days).

Average snowfall in April
Robertsville, NJ

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

The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Robertsville, NJ

Average snowfall days in April - Robertsville, NJ
  • Average snowfall days in April: 0.4 days

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

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

Average daylight in April / Average sunshine in April - Robertsville, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in April
Robertsville, NJ

Average sunshine days in April - Robertsville, NJ
  • Average sunshine days in April: 12.9 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in April
Robertsville, NJ

Average UV index in April - Robertsville, 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
Robertsville, NJ

Average cloud cover in April - Robertsville, NJ
  • Average cloud cover in April: 43

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in April
Robertsville, NJ

Average visibility in April - Robertsville, 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).

Robertsville, New Jersey, USA

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