May weather forecast
Rumson, NJ

Share

Weather in May

The last month of the spring, May, is an enjoyable month in Rumson, New Jersey, with an average temperature fluctuating between 64.9°F (18.3°C) and 54.9°F (12.7°C).

Temperature

May brings a rise in Rumson's average high-temperature, moving from a mild 55.6°F (13.1°C) in April to a still refreshing 64.9°F (18.3°C). The nights of May anticipate an average low-temperature of 54.9°F (12.7°C).

Humidity

The months with the highest humidity are May and June, with an average relative humidity of 79%.

Rainfall

In Rumson, in May, during 12.6 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. 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.

Ocean temperature

In May, the average ocean temperature in Rumson is 54.9°F (12.7°C).
Note: In 54.9°F (12.7°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).

Daylight

The average length of the day in May in Rumson is 14h and 26min.
On the first day of the month, sunrise is at 5:54 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:19 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

The average daily maximum UV index in May in Rumson is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the UV index of 5 transforms into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
[Resources]

Frequently asked questions

What is the temperature in May in Rumson?

In May, the average high-temperature and low-temperature in Rumson are 64.9°F (18.3°C) and 54.9°F (12.7°C) respectively.

What are the most humid months in Rumson?

The months with the highest humidity in Rumson, New Jersey, are May and June, with an average relative humidity of 79%.

What is the average humidity in May in Rumson?

In May, the average relative humidity is 79%.

How much does it rain in Rumson in May?

In Rumson, New Jersey, during May, the rain falls for 12.6 days and regularly aggregates up to 1.22" (31mm) of precipitation.

When it does not snow in Rumson?

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

What is the water temperature in May in Rumson?

In Rumson, the average seawater temperature in May is 54.9°F (12.7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Rumson have in May?

In Rumson, the average day length in May is 14h and 26min.

When is the sunrise / sunset in May in Rumson?

In May, on the first day of the month, sunrise is at 5:54 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:19 pm EDT.

How many hours of sunshine does Rumson have in May?

The average sunshine duration in May in Rumson is 8.9h.

How high is the UV index in May in Rumson?

The average daily maximum UV index in May in Rumson, New Jersey, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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 May
Rumson, NJ

Average temperature in May - Rumson, NJ
  • Average high temperature in May: 64.9°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 May: 54.9°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).

[Resources]

Average pressure in May
Rumson, NJ

Average pressure in May - Rumson, NJ
  • Average pressure in May: 30.01"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).

[Resources]

Average wind speed in May
Rumson, NJ

Average wind speed in May - Rumson, NJ
  • Average wind speed in May: 9.1mph

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).

[Resources]

Average humidity in May
Rumson, NJ

Average humidity in May - Rumson, NJ
  • Average humidity in May: 79%

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

[Resources]

Average rainfall in May
Rumson, NJ

Average rainfall in May - Rumson, NJ
  • Average rainfall in May: 1.22"

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

[Resources]

Average rainfall days in May
Rumson, NJ

Average rainfall days in May - Rumson, NJ
  • Average rainfall days in May: 12.6 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).

[Resources]

Average snowfall in May
Rumson, NJ

Average snowfall in May - Rumson, NJ
  • Average snowfall in May: 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").

[Resources]

Average snowfall days in May
Rumson, NJ

Average snowfall days in May - Rumson, NJ
  • Average snowfall days in May: 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).

[Resources]

Average sea temperature in May
Rumson, NJ

Average sea temperature in May - Rumson, NJ
  • Average sea temperature in May: 54.8°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).

[Resources]

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

Average daylight in May / Average sunshine in May - Rumson, NJ
  • Average daylight in May: 14h 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 May: 8h and 5min

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).

[Resources]

Average sunshine days in May
Rumson, NJ

Average sunshine days in May - Rumson, NJ
  • Average sunshine days in May: 16 days

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

[Resources]

Average UV index in May
Rumson, NJ

Average UV index in May - Rumson, NJ
  • Average UV index in May: 5

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).

[Resources]

Average cloud cover in May
Rumson, NJ

Average cloud cover in May - Rumson, NJ
  • Average cloud cover in May: 42

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).

[Resources]

Average visibility in May
Rumson, NJ

Average visibility in May - Rumson, NJ
  • Average visibility in May: 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).

[Resources]

Rumson, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location