April weather forecast and climate
Edison, NJ

April is a moderate spring month in Edison, New Jersey, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 59.2°F (15.1°C).

Temperature

In April, the average high-temperature rises, from a frosty 47.5°F (8.6°C) in March, to a mild 59.2°F (15.1°C). In April, in Edison, New Jersey, the average low-temperature is 43.5°F (6.4°C).

Humidity

The average relative humidity in Edison is 73%.

Rainfall

In Edison, New Jersey, in April, during 14.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Edison, New Jersey, during the entire year, the rain falls for 149.9 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. April is the last month it regularly snows in Edison. During 0.4 snowfall days, Edison aggregates 0.16" (4mm) of snow. In Edison, during the entire year, snow falls for 18.6 days, and aggregates up to 7.64" (194mm) of snow.

Daylight

In April, the average length of the day in Edison is 13.3h.

Sunshine

In April, the average sunshine in Edison is 8.2h.

UV index

The average daily maximum UV index in Edison is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Edison?

The average high-temperature, in April, is 59.2°F (15.1°C), while the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in April in Edison?

In April, the average relative humidity in Edison, New Jersey, is 73%.

How much does it rain in Edison in April?

In Edison, during April, the rain falls for 14.3 days and regularly aggregates up to 2.09" (53mm) of precipitation.

What is the last month it snows in Edison?

April is the last month it regularly snows in Edison, New Jersey. During 0.4 snowfall days, in April, Edison aggregates 0.16" (4mm) of snow.

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

The average length of the day in April in Edison, New Jersey, is 13.3h.

How long on average sun shines in April in Edison?

The average sunshine in April in Edison is 8.2h.

How high is the UV index in April in Edison?

The average daily maximum UV index in April in Edison, New Jersey, is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in April - Edison, NJ
  • Average high temperature in April: 15.1°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (2.6°C).

  • Average low temperature in April: 6.4°C

The month with the highest average low temperature is July (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in April - Edison, NJ
  • Average pressure in April: 1015.4mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in April - Edison, NJ
  • Average wind speed in April: 14.2km/h

The windiest month (with the highest average wind speed) is March (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (9.7km/h).

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

Months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).

Average rainfall in April - Edison, NJ
  • Average rainfall in April: 53mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is September (39mm).

Average rainfall days in April - Edison, NJ
  • Average rainfall days in April: 14.3 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in April - Edison, NJ
  • Average snowfall in April: 4mm

The month with the highest snowfall is March (83mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is January (5.6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in April / Average sunshine in April - Edison, NJ
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in April: 8.2h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in April - Edison, NJ
  • Average sunshine days in April: 14.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

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

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

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

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in April - Edison, NJ
  • Average visibility in April: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).