July weather forecast
Penns Grove, NJ

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Weather in July

July, the same as June, is a moderately hot summer month in Penns Grove, New Jersey, with an average temperature fluctuating between 85.3°F (29.6°C) and 68.5°F (20.3°C).

Temperature

Penns Grove experiences its highest average temperatures in July, reaching a peak of 85.3°F (29.6°C) and a minimum of 68.5°F (20.3°C).

Heat index

July's heat index is estimated at a fiery hot 95°F (35°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

In Penns Grove, the average relative humidity in July is 74%.

Rainfall

In July, the rain falls for 15.5 days. Throughout July, 2.44" (62mm) of precipitation is accumulated. In Penns Grove, during the entire year, the rain falls for 150.6 days and collects up to 26.46" (672mm) of precipitation.

Snowfall

June through October are months without snowfall.

Ocean temperature

In Penns Grove, in July, the average water temperature is 73.9°F (23.3°C).
Note: For someone sensitive to cold, swimming in 73.9°F (23.3°C) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In Penns Grove, the average length of the day in July is 14h and 40min.
On the first day of the month, sunrise is at 5:38 am and sunset at 8:33 pm. On the last day of July, sunrise is at 6:00 am and sunset at 8:15 pm EDT.

Sunshine

The month with the most sunshine in Penns Grove, New Jersey, is July, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Penns Grove, New Jersey, are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice! The reflection of water and sand increases the UV radiation significantly.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

In Penns Grove, the peak temperatures are generally noted in July, averaging a high of 85.3°F (29.6°C) and a low of 68.5°F (20.3°C).

How hot is it in July?

In Penns Grove, in July, the average high-temperature is 85.3°F (29.6°C), and the average low-temperature is 68.5°F (20.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is estimated at 95°F (35°C).

What is the average humidity in July?

In July, the average relative humidity is 74%.

How much does it rain in July?

In Penns Grove, in July, during 15.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow?

In Penns Grove, snow does not fall in June through October.

How warm is the water in July?

In July, the average ocean temperature is 73.9°F (23.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.9°F (23.3°C) water may be enjoyable.

What is the average length of the day in July?

The average day length in July is 14h and 40min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:38 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:15 pm EDT.

What month has the most sunshine?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July?

In Penns Grove, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index?

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

How high is the UV index in July?

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

Average temperature in July
Penns Grove, NJ

Average temperature in July - Penns Grove, NJ
  • Average high temperature in July: 85.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 68.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in July
Penns Grove, NJ

Average pressure in July - Penns Grove, NJ
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Penns Grove, NJ

Average wind speed in July - Penns Grove, NJ
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in July
Penns Grove, NJ

Average humidity in July - Penns Grove, NJ
  • Average humidity in July: 74%

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

Average rainfall in July
Penns Grove, NJ

Average rainfall in July - Penns Grove, NJ
  • Average rainfall in July: 2.44"

The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in July
Penns Grove, NJ

Average rainfall days in July - Penns Grove, NJ
  • Average rainfall days in July: 15.5 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in July
Penns Grove, NJ

Average snowfall in July - Penns Grove, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.2").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in July
Penns Grove, NJ

Average snowfall days in July - Penns Grove, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in July
Penns Grove, NJ

Average sea temperature in July - Penns Grove, NJ
  • Average sea temperature in July: 74°F

The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in July /
Average sunshine in July
Penns Grove, NJ

Average daylight in July / Average sunshine in July - Penns Grove, NJ
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in July
Penns Grove, NJ

Average sunshine days in July - Penns Grove, NJ
  • Average sunshine days in July: 12.9 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in July
Penns Grove, NJ

Average UV index in July - Penns Grove, 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, November and December (UV index 2).

Average cloud cover in July
Penns Grove, NJ

Average cloud cover in July - Penns Grove, NJ
  • Average cloud cover in July: 30

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in July
Penns Grove, NJ

Average visibility in July - Penns Grove, NJ
  • Average visibility in July: 6mi

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

Penns Grove, New Jersey, USA

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