July weather forecast
South Dennis, NJ

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Weather in July

July, the same as June, is another warm summer month in South Dennis, New Jersey, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 80.8°F (27.1°C).

Temperature

July is the warmest month, with the temperature often reaching an average high of 80.8°F (27.1°C) and an average low of 72.1°F (22.3°C).

Heat index

July's mean heat index is calculated to be a hot 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in July is 79%.

Rainfall

In South Dennis, during July, the rain falls for 15.2 days and regularly aggregates up to 1.38" (35mm) of precipitation. In South Dennis, during the entire year, the rain falls for 130.8 days and collects up to 13.23" (336mm) of precipitation.

Snowfall

April through October are months without snowfall in South Dennis.

Daylight

In July, the average length of the day is 14h and 36min.
On the first day of July, sunrise is at 5:37 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:11 pm EDT.

Sunshine

With an average of 11h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 11, 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 South Dennis, July registers the highest temperatures, averaging 80.8°F (27.1°C) at the peak and 72.1°F (22.3°C) at the lowest.

What is the temperature in July?

An average high-temperature, in July, in South Dennis, is 80.8°F (27.1°C) and the average low-temperature is 72.1°F (22.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in July?

In South Dennis, the average relative humidity in July is 79%.

How many days does it rain in July?

In South Dennis, during July, the rain falls for 15.2 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow?

In South Dennis, snow does not fall in April through October.

What is the average length of the day in July?

In July, the average day length is 14h and 36min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:37 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:11 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 11h of sunshine.

How many hours of sunshine does South Dennis have in July?

The average sunshine duration in July is 11h.

What is the month with the highest UV index?

June 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 South Dennis?

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
South Dennis, NJ

Average temperature in July - South Dennis, NJ
  • Average high temperature in July: 80.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in July: 72.1°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in July
South Dennis, NJ

Average pressure in July - South Dennis, 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 (29.94"Hg).

Average wind speed in July
South Dennis, NJ

Average wind speed in July - South Dennis, NJ
  • Average wind speed in July: 8.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in July
South Dennis, NJ

Average humidity in July - South Dennis, NJ
  • Average humidity in July: 79%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

Average rainfall in July
South Dennis, NJ

Average rainfall in July - South Dennis, NJ
  • Average rainfall in July: 1.38"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in July
South Dennis, NJ

Average rainfall days in July - South Dennis, NJ
  • Average rainfall days in July: 15.2 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7 days).

Average snowfall in July
South Dennis, NJ

Average snowfall in July - South Dennis, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
South Dennis, NJ

Average snowfall days in July - South Dennis, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
South Dennis, NJ

Average daylight in July / Average sunshine in July - South Dennis, 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 30min).

  • Average sunshine in July: 11h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is February (Average sunshine: 5h).

Average sunshine days in July
South Dennis, NJ

Average sunshine days in July - South Dennis, NJ
  • Average sunshine days in July: 13.4 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in July
South Dennis, NJ

Average UV index in July - South Dennis, NJ
  • Average UV index in July: 6

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

Average cloud cover in July
South Dennis, NJ

Average cloud cover in July - South Dennis, NJ
  • Average cloud cover in July: 25

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in July
South Dennis, NJ

Average visibility in July - South Dennis, 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).

South Dennis, New Jersey, USA

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