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

July 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
July, like June, in Trenton, New Jersey, is another warm summer month, with average temperature fluctuating between 66°F (18.9°C) and 85.3°F (29.6°C).

Temperature

The warmest month is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 66°F (18.9°C).

Rainfall

July is the month with the most rainfall in Trenton. Rain falls for 9 days and accumulates 4.9" (125.7mm) of precipitation.

Daylight

The average length of the day in July is 14.7h.

Sunshine

In Trenton, the average sunshine is 8.7h.

UV index

Months with the highest UV index in Trenton are June and July, with an average maximum UV index of 9. A UV Index reading of 8 to 10 represents a very high threat to health from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the warmest month in Trenton?

The warmest month in Trenton, New Jersey, is July, with an average high-temperature of 85.3°F (29.6°C) and an average low-temperature of 66°F (18.9°C).

What is the temperature in July in Trenton?

In July, the average high-temperature is 85.3°F (29.6°C), and the average low-temperature is 66°F (18.9°C).

How much does it rain in Trenton in July?

In July, in Trenton, New Jersey, the rain falls for 9 days. Throughout July, 4.9" (125.7mm) of precipitation is accumulated.

What is the rainiest month in Trenton?

July is the month with the most rainfall in Trenton. Rain falls for 9 days and accumulates 4.9" (125.7mm) of precipitation.

What is the average length of the day in July in Trenton?

In Trenton, the average length of the day in July is 14.7h.

How many hours of sunshine does Trenton have in July?

In July, the average sunshine is 8.7h.

What is the month with the highest UV index in Trenton?

June and July, with an average maximum UV index of 9, are months with the highest UV index.

What is the UV index reading in July in Trenton?

The average daily maximum UV index in July in Trenton is 9. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Trenton, NJ
  • Average high temperature in July: 29.6°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 July: 18.9°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 July - Trenton, NJ
  • Average rainfall in July: 125.7mm

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 July - Trenton, NJ
  • Average rainfall days in July: 9 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 July / Average sunshine in July - Trenton, NJ
  • Average daylight in July: 14.7h

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 July: 8.7h

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 July - Trenton, NJ
  • Average UV index in July: 9

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).