August 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

What is the average temperature in August in Trenton?

In August, in Trenton, New Jersey, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 64.2°F (17.9°C).
Average temperature in August - Trenton, NJ
  • Average high temperature in August: 28.7°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 August: 17.9°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 August - Trenton, NJ
  • Average rainfall in August: 104.1mm

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 August - Trenton, NJ
  • Average rainfall days in August: 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 August / Average sunshine in August - Trenton, NJ
  • Average daylight in August: 13.7h

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 August: 8.1h

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 August - Trenton, NJ
  • Average UV index in August: 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).

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