April weather forecast and climate
Somerville, NJ

April is a mild spring month in Somerville, New Jersey, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 42.3°F (5.7°C).

Temperature

In April, the average high-temperature increases, from a frosty 47.7°F (8.7°C) in March, to a moderate 59.5°F (15.3°C). In April, in Somerville, the average low-temperature is 42.3°F (5.7°C).

Humidity

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

Rainfall

In April, in Somerville, the rain falls for 15.4 days. Throughout April, 2.17" (55mm) of precipitation is accumulated. In Somerville, during the entire year, the rain falls for 157.9 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Somerville. In Somerville, during April, snow falls for 0.4 days and regularly aggregates up to 0.12" (3mm) of snow. Throughout the year, in Somerville, there are 23.8 snowfall days, and 9.53" (242mm) of snow is accumulated.

Daylight

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

Sunshine

The average sunshine is 8.2h.

UV index

The average daily maximum UV index in Somerville, New Jersey, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Somerville?

In Somerville, in April, the average high-temperature is 59.5°F (15.3°C), and the average low-temperature is 42.3°F (5.7°C).

What is the least humid month in Somerville?

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

What is the average humidity in April in Somerville?

In April, the average relative humidity in Somerville is 74%.

How much does it rain in Somerville in April?

In Somerville, in April, it is raining for 15.4 days, with typically 2.17" (55mm) of accumulated precipitation.

How much does it snow in Somerville in April?

In Somerville, in April, during 0.4 snowfall days, 0.12" (3mm) of snow is typically accumulated.

How many hours of daylight does Somerville have in April?

The average length of the day in April in Somerville is 13.3h.

How long on average sun shines in April in Somerville?

In April, the average sunshine is 8.2h.

What is the UV index reading in April in Somerville?

In April, the average daily maximum UV index in Somerville, New Jersey, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in April - Somerville, NJ
  • Average high temperature in April: 15.3°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (2°C).

  • Average low temperature in April: 5.7°C

The month with the highest average low temperature is July (18.9°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

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

The month with the highest atmospheric pressure is November (1019.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in April - Somerville, NJ
  • Average wind speed in April: 13.4km/h

The windiest month (with the highest average wind speed) is March (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).

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

Months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).

Average rainfall in April - Somerville, NJ
  • Average rainfall in April: 55mm

The wettest month (with the highest rainfall) is December (74mm).
The driest month (with the least rainfall) is September (39mm).

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

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (9 days).

Average snowfall in April - Somerville, NJ
  • Average snowfall in April: 3mm

The month with the highest snowfall is March (72mm).
Months with the least snowfall are June, July, August and September (0mm).

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

The month with the highest number of snowfall days is January (6.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April / Average sunshine in April - Somerville, 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 - Somerville, NJ
  • Average sunshine days in April: 12.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).

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

Months with the highest UV index are 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 - Somerville, NJ
  • Average cloud cover in April: 46

Months with the most cloud cover are February and December (Cloud cover 49).
Months with the least cloud cover are July and August (Cloud cover 34).

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

Months with the highest visibility are January, February, March, April, June, July, August, October, November and December (9km).
Months with the lowest visibility are May and September (8km).