August weather forecast
Grenloch, NJ

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Weather in August

The last month of the summer, August, is also a moderately hot month in Grenloch, New Jersey, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 68.2°F (20.1°C).

Temperature

August's advent notes a subtle adjustment in average high-temperature to a still moderately hot 83.7°F (28.7°C) from July. In the month of August, the average temperature in Grenloch dips to a pleasant 68.2°F (20.1°C) during the night.

Heat index

The heat index value for August is estimated at a tropical 89.6°F (32°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In Grenloch, the average relative humidity in August is 72%.

Rainfall

August is the month with the most rainfall. Rain falls for 12 days and accumulates 1.38" (35mm) of precipitation.

Snowfall

In Grenloch, snow does not fall in April, June through October.

Daylight

In August, the average length of the day is 13h and 41min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:32 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The months with the highest UV index 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 average person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The average high-temperature and low-temperature during August are 83.7°F (28.7°C) and 68.2°F (20.1°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in August?

In August, the average relative humidity is 72%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 12 days and typically aggregates up to 1.38" (35mm) of precipitation.

How many days does it rain in August?

In Grenloch, in August, it is raining for 12 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow?

In Grenloch, snow does not fall in April, June through October.

What is the average length of the day in August?

In August, the average day length is 13h and 41min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:32 pm EDT.

How many hours of sunshine does Grenloch have in August?

In August, the average sunshine duration is 10.3h.

What is the month with the highest UV index?

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 August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents 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 August
Grenloch, NJ

Average temperature in August - Grenloch, NJ
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
Grenloch, NJ

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

Average wind speed in August - Grenloch, NJ
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in August
Grenloch, NJ

Average humidity in August - Grenloch, NJ
  • Average humidity in August: 72%

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in August
Grenloch, NJ

Average rainfall in August - Grenloch, NJ
  • Average rainfall in August: 1.38"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

Average rainfall days in August
Grenloch, NJ

Average rainfall days in August - Grenloch, NJ
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in August
Grenloch, NJ

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

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in August
Grenloch, NJ

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

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Grenloch, NJ
  • Average daylight in August: 13h 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 August: 10h and 2min

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 54min).

Average sunshine days in August
Grenloch, NJ

Average sunshine days in August - Grenloch, NJ
  • Average sunshine days in August: 15.6 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in August
Grenloch, NJ

Average UV index in August - Grenloch, 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, November and December (UV index 2).

Average cloud cover in August
Grenloch, NJ

Average cloud cover in August - Grenloch, NJ
  • Average cloud cover in August: 31

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in August
Grenloch, NJ

Average visibility in August - Grenloch, NJ
  • Average visibility in August: 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).

Grenloch, New Jersey, USA

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