August weather forecast
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

Weather in August

The last month of the summer, August, is also a moderately hot month in Trenton, New Jersey, with an average temperature fluctuating between 66.4°F (19.1°C) and 82.9°F (28.3°C).

Temperature

In Trenton, the average high-temperature in August is practically the same as in July - a still warm 82.9°F (28.3°C). In Trenton, New Jersey, in August, the average low-temperature is 66.4°F (19.1°C).

Heat index

In August, the average heat index is appraised at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in August is 74%.

Rainfall

In Trenton, during 15.9 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. In Trenton, during the entire year, the rain falls for 156.8 days and collects up to 31.81" (808mm) of precipitation.

Snowfall

In Trenton, New Jersey, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 43min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:33 pm EDT.

Sunshine

The average sunshine in August in Trenton is 10.2h.

UV index

The months with the highest UV index in Trenton are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 the 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.
[Resources]

FAQ

What is the temperature in August in Trenton?

In Trenton, New Jersey, in August, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 89.6°F (32°C).

What is the average humidity in August in Trenton?

The average relative humidity in August in Trenton, New Jersey, is 74%.

How many days does it rain in August in Trenton?

In Trenton, during August, the rain falls for 15.9 days and regularly aggregates up to 3.5" (89mm) of precipitation.

When it does not snow in Trenton?

June through September are months without snowfall in Trenton, New Jersey.

How many hours of daylight does Trenton have in August?

In Trenton, the average day length in August is 13h and 43min.

When are sunrise and sunset in August in Trenton?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:33 pm EDT.

How long on average sun shines in August in Trenton?

The average sunshine duration in August in Trenton is 10.2h.

When is the highest UV index in Trenton?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August in Trenton?

The average daily maximum UV index in August in Trenton is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Trenton, NJ

Average temperature in August - Trenton, NJ
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

[Resources]

Average pressure in August
Trenton, NJ

Average pressure in August - Trenton, NJ
  • Average pressure in August: 29.98"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 August
Trenton, NJ

Average wind speed in August - Trenton, NJ
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

[Resources]

Average humidity in August
Trenton, NJ

Average humidity in August - Trenton, NJ
  • Average humidity in August: 74%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

[Resources]

Average rainfall in August
Trenton, NJ

Average rainfall in August - Trenton, NJ
  • Average rainfall in August: 3.5"

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is January (1.85").

[Resources]

Average rainfall days in August
Trenton, NJ

Average rainfall days in August - Trenton, NJ
  • Average rainfall days in August: 15.9 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (7.9 days).

[Resources]

Average snowfall in August
Trenton, NJ

Average snowfall in August - Trenton, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.72").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in August
Trenton, NJ

Average snowfall days in August - Trenton, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Trenton, NJ

Average daylight in August / Average sunshine in August - Trenton, NJ
  • Average daylight in August: 13h and 43min

The month with the longest days is June (Average daylight: 14h and 59min).
The month with the shortest days is December (Average daylight: 9h and 22min).

  • Average sunshine in August: 10h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

[Resources]

Average sunshine days in August
Trenton, NJ

Average sunshine days in August - Trenton, NJ
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.3 days).

[Resources]

Average UV index in August
Trenton, NJ

Average UV index in August - Trenton, NJ
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

[Resources]

Average cloud cover in August
Trenton, NJ

Average cloud cover in August - Trenton, NJ
  • Average cloud cover in August: 32

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 32).

[Resources]

Average visibility in August
Trenton, NJ

Average visibility in August - Trenton, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location