July 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 July

July, like June, in Trenton, New Jersey, is another warm summer month, with an average temperature fluctuating between 85.1°F (29.5°C) and 67.3°F (19.6°C).

Temperature

With an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 67.3°F (19.6°C), July is the warmest month.

Heat index

In July, the average heat index is evaluated at a very hot 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With 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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and clothing affect individual temperature impact. 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Trenton, New Jersey, the average relative humidity in July is 74%.

Rainfall

July is the month with the most rainfall. Rain falls for 18.5 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

June through September are months without snowfall in Trenton.

Daylight

In Trenton, the average length of the day in July is 14h and 42min.
On the first day of July in Trenton, New Jersey, sunrise is at 5:33 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:14 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.6h of sunshine.

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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against 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. 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.
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FAQ

What is the warmest month in Trenton?

The warmest month is July, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 67.3°F (19.6°C).

What is the temperature in July in Trenton?

The average high-temperature, in July, in Trenton, is 85.1°F (29.5°C), while the average low-temperature is 67.3°F (19.6°C). in July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 95°F (35°C).

What is the average humidity in July in Trenton?

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

What is the rainiest month in Trenton?

July is the month with the most rainfall in Trenton. Rain falls for 18.5 days and accumulates 3.74" (95mm) of precipitation.

How many days does it rain in July in Trenton?

In July, the rain falls for 18.5 days. Throughout July, 3.74" (95mm) of precipitation is accumulated.

When it does not snow in Trenton?

June through September are months without snowfall.

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

The average day length in July in Trenton is 14h and 42min.

What time are sunrise and sunset in July in Trenton?

In July, on the first day of the month, sunrise is at 5:33 am and sunset at 8:32 pm. On the last day of the month, in Trenton, New Jersey, sunrise is at 5:56 am and sunset at 8:14 pm EDT.

What month has the most sunshine in Trenton?

The month with the most sunshine is July, with an average of 10.6h of sunshine.

How long on average sun shines in July in Trenton?

In Trenton, the average sunshine duration in July is 10.6h.

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 reading in July in Trenton?

In July, the average daily maximum UV index in Trenton, New Jersey, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Trenton, NJ

Average temperature in July - Trenton, NJ
  • Average high temperature in July: 85.1°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 July: 67.3°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).

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Average pressure in July
Trenton, NJ

Average pressure in July - Trenton, NJ
  • Average pressure in July: 29.96"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).

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Average wind speed in July
Trenton, NJ

Average wind speed in July - Trenton, NJ
  • Average wind speed in July: 5.5mph

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).

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Average humidity in July
Trenton, NJ

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

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

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Average rainfall in July
Trenton, NJ

Average rainfall in July - Trenton, NJ
  • Average rainfall in July: 3.74"

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

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Average rainfall days in July
Trenton, NJ

Average rainfall days in July - Trenton, NJ
  • Average rainfall days in July: 18.5 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).

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Average snowfall in July
Trenton, NJ

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

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

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Average snowfall days in July
Trenton, NJ

Average snowfall days in July - Trenton, NJ
  • Average snowfall days in July: 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).

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

Average daylight in July / Average sunshine in July - Trenton, NJ
  • Average daylight in July: 14h and 42min

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 July: 10h and 36min

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).

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Average sunshine days in July
Trenton, NJ

Average sunshine days in July - Trenton, NJ
  • Average sunshine days in July: 9.3 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).

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Average UV index in July
Trenton, NJ

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

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Average cloud cover in July
Trenton, NJ

Average cloud cover in July - Trenton, NJ
  • Average cloud cover in July: 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).

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Average visibility in July
Trenton, NJ

Average visibility in July - Trenton, NJ
  • Average visibility in July: 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).

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