Trenton
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Trenton, NJ

A full aerial view of Trenton, New Jersey, with the George Washington statue
A full aerial view of Trenton, New Jersey, with the George Washington statue
The last month of the spring, May, is a pleasant month in Trenton, New Jersey, with average temperature fluctuating between 50.5°F (10.3°C) and 71.8°F (22.1°C).

Temperature

In May, the average high-temperature rises, from a comfortable 61.3°F (16.3°C) in April, to an agreeable 71.8°F (22.1°C). The average low-temperature, in May, is 50.5°F (10.3°C).

Rainfall

In Trenton, it is raining for 11 days, with typically 4.4" (111mm) of accumulated precipitation. In Trenton, during the entire year, the rain falls for 118 days and collects up to 46.4" (1179.7mm) of precipitation.

Daylight

In Trenton, New Jersey, the average length of the day is 14.4h.

Sunshine

In May, the average sunshine in Trenton is 8h.

UV index

In May, the average daily maximum UV index is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
In May, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in May in Trenton?

In May, the average high-temperature is 71.8°F (22.1°C), and the average low-temperature is 50.5°F (10.3°C).

How much does it rain in Trenton in May?

In Trenton, New Jersey, in May, during 11 rainfall days, 4.4" (111mm) of precipitation is typically accumulated.

How many hours of daylight does Trenton have in May?

The average length of the day in May in Trenton is 14.4h.

How many hours of sunshine does Trenton have in May?

In Trenton, New Jersey, the average sunshine in May is 8h.

What is the UV index reading in May in Trenton?

The average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Trenton, NJ
  • Average high temperature in May: 22.1°C

The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (3.9°C).

  • Average low temperature in May: 10.3°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 rainfall in May - Trenton, NJ
  • Average rainfall in May: 111mm

The wettest month (with the highest rainfall) is July (125.7mm).
The driest month (with the lowest rainfall) is February (58.7mm).

Average rainfall days in May - Trenton, NJ
  • Average rainfall days in May: 11 days

Months with the highest number of rainy days are March, April, May and December (11 days).
Months with the lowest number of rainy days are September and October (8 days).

Average daylight in May / Average sunshine in May - Trenton, NJ
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 8h

The month with most sunshine is June (Average sunshine: 8.8h).
The month with least sunshine is December (Average sunshine: 4.5h).

Average UV index in May - Trenton, NJ
  • Average UV index in May: 8

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).