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

Weather in August

The last month of the summer, August, is another warm month in Trenton, New Jersey, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 66.4°F (19.1°C).

Temperature

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

Heat index

The average heat index is estimated at a hot 89.4°F (31.9°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. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, pregnancy, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity in Trenton is 74%.

Rainfall

In Trenton, during August, the rain falls for 15.9 days and regularly aggregates up to 3.5" (89mm) of precipitation. 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 snow does not fall in June through September.

Daylight

In Trenton, the average length of the day in August is 13.7h.

Sunshine

The average sunshine in Trenton is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the temperature in August in Trenton?

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. 'real feel', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, in August is appraised at 89.4°F (31.9°C).

What is the average humidity in August in Trenton?

The average relative humidity in August in Trenton is 74%.

How much does it rain in Trenton in August?

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?

In Trenton snow does not fall in June through September.

How many hours of daylight does Trenton have in August?

In Trenton, New Jersey, the average length of the day in August is 13.7h.

How long on average sun shines in August in Trenton?

In August, the average sunshine in Trenton, New Jersey, is 10.2h.

What are the months with the highest UV index in Trenton?

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

What is the UV index intensity in August in Trenton?

In Trenton, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.

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"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

[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%

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").
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).
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: 13.7h

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

  • Average sunshine in August: 10.2h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

[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

Months with the highest UV index are May, June, July and August (UV index 6).
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

Months with the most cloud cover are February, March and December (Cloud cover 47).
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

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]