April weather forecast
Rumson, NJ

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Weather in April

April in Rumson, New Jersey, is a moderate spring month, with an average temperature varying between 45.1°F (7.3°C) and 55.6°F (13.1°C).

Temperature

April signals a shift in the average high-temperature, moving from March's frosty 46°F (7.8°C) to a mild 55.6°F (13.1°C). In April, Rumson experiences a temperature dip to an average of 45.1°F (7.3°C) at night.

Humidity

The average relative humidity in April in Rumson is 75%.

Rainfall

In Rumson, during April, the rain falls for 11.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Rumson, during the entire year, the rain falls for 125.1 days and collects up to 12.64" (321mm) of precipitation.

Snowfall

April through September and November are months without snowfall in Rumson.

Ocean temperature

In Rumson, in April, the average water temperature is 46.4°F (8°C).
Note: Diving into 46.4°F (8°C) is practical below 50°F (10°C), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 55.4°F (13°C) feels ice-cold.

Daylight

The average length of the day in April is 13h and 19min.
On the first day of April in Rumson, sunrise is at 6:38 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:50 pm EDT.

Sunshine

In Rumson, the average sunshine in April is 8.6h.

UV index

The average daily maximum UV index in April in Rumson is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: During April, 4 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Rumson in April?

The average high-temperature and low-temperature in Rumson, New Jersey, during April are 55.6°F (13.1°C) and 45.1°F (7.3°C) respectively.

What is the average humidity in April in Rumson?

The average relative humidity in April in Rumson is 75%.

How much does it rain in Rumson in April?

In April, in Rumson, New Jersey, the rain falls for 11.5 days. Throughout April, 0.94" (24mm) of precipitation is accumulated.

When it does not snow in Rumson?

April through September and November are months without snowfall in Rumson, New Jersey.

Does it snow in Rumson in April?

In April, in Rumson, New Jersey, it doesn't snow. March is the latest month when it typically snows.

What is the water temperature in April in Rumson?

In Rumson, in April, the average water temperature is 46.4°F (8°C). Swimming in 46.4°F (8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Rumson have in April?

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

When are sunrise and sunset in April in Rumson?

On the first day of April in Rumson, sunrise is at 6:38 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:50 pm EDT.

How many hours of sunshine does Rumson have in April?

In April, the average sunshine duration in Rumson, New Jersey, is 8.6h.

How high is the UV index in April in Rumson?

In Rumson, 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Rumson, NJ

Average temperature in April - Rumson, NJ
  • Average high temperature in April: 55.6°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in April: 45.1°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in April
Rumson, NJ

Average pressure in April - Rumson, 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
Rumson, NJ

Average wind speed in April - Rumson, NJ
  • Average wind speed in April: 10.9mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in April
Rumson, NJ

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

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).

Average rainfall in April
Rumson, NJ

Average rainfall in April - Rumson, NJ
  • Average rainfall in April: 0.94"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in April
Rumson, NJ

Average rainfall days in April - Rumson, NJ
  • Average rainfall days in April: 11.5 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in April
Rumson, NJ

Average snowfall in April - Rumson, NJ
  • Average snowfall in April: 0"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").

Average snowfall days in April
Rumson, NJ

Average snowfall days in April - Rumson, NJ
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

Average sea temperature in April
Rumson, NJ

Average sea temperature in April - Rumson, NJ
  • Average sea temperature in April: 46.4°F

The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).

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

Average daylight in April / Average sunshine in April - Rumson, 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 18min).

  • Average sunshine in April: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in April
Rumson, NJ

Average sunshine days in April - Rumson, NJ
  • Average sunshine days in April: 16.7 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).

Average UV index in April
Rumson, NJ

Average UV index in April - Rumson, 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, November and December (UV index 2).

Average cloud cover in April
Rumson, NJ

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

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in April
Rumson, NJ

Average visibility in April - Rumson, 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).

Rumson, New Jersey, USA

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