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
May, the last month of the spring, in Trenton, is an agreeable month, with average temperature fluctuating between 50.5°F (10.3°C) and 71.8°F (22.1°C).

Temperature

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

Rainfall

In Trenton, during May, the rain falls for 11 days and regularly aggregates up to 4.4" (111mm) of precipitation. In Trenton, during the entire year, the rain falls for 118 days and collects up to 46.4" (1179.7mm) of precipitation.

Daylight

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

Sunshine

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

UV index

In May, the average daily maximum UV index in Trenton is 8. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 8 transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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 Trenton, New Jersey, 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 many days does it rain in May in Trenton?

In Trenton, New Jersey, during May, the rain falls for 11 days and regularly aggregates up to 4.4" (111mm) of precipitation.

How many hours of daylight does Trenton have in May?

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

How many hours of sunshine does Trenton have in May?

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

What is the UV index reading in May in Trenton?

In May, the average daily maximum UV index in Trenton is 8. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in May - Trenton, NJ
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average rainfall in May - Trenton, NJ
  • Average rainfall in May: 4.4"

The wettest month (with the highest rainfall) is July (5").
The driest month (with the lowest rainfall) is February (2.3").

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).