August weather forecast
Griggstown, NJ

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Weather in August

The last month of the summer, August, is also a moderately hot month in Griggstown, New Jersey, with an average temperature varying between 82.9°F (28.3°C) and 65.8°F (18.8°C).

Temperature

August's weather records an average high-temperature of a still warm 82.9°F (28.3°C), showing little deviation from July. During August, Griggstown experiences a consistent low-temperature average of 65.8°F (18.8°C).

Heat index

The heat index value during August is calculated to be a tropical 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

The average relative humidity in August in Griggstown is 75%.

Rainfall

In Griggstown, in August, it is raining for 12.6 days, with typically 1.5" (38mm) of accumulated precipitation. In Griggstown, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

In Griggstown, snow does not fall in June through October.

Daylight

In August, the average length of the day in Griggstown is 13h and 44min.
On the first day of the month, sunrise is at 5:56 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

Sunshine

In August, the average sunshine in Griggstown is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

How hot is August in Griggstown?

August temperatures in Griggstown vary between a high-temperature of 82.9°F (28.3°C) and a low-temperature of 65.8°F (18.8°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in August in Griggstown?

In August, the average relative humidity in Griggstown, New Jersey, is 75%.

How much does it rain in Griggstown in August?

In Griggstown, New Jersey, in August, it is raining for 12.6 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow in Griggstown?

In Griggstown, snow does not fall in June through October.

What is the average length of the day in August in Griggstown?

In August, the average day length in Griggstown, New Jersey, is 13h and 44min.

When are sunrise and sunset in August in Griggstown?

On the first day of August in Griggstown, sunrise is at 5:56 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

How long on average sun shines in August in Griggstown?

The average sunshine duration in August in Griggstown, New Jersey, is 10.1h.

When is the highest UV index in Griggstown?

The months with the highest UV index in Griggstown, New Jersey, are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Griggstown?

The average daily maximum UV index in August in Griggstown is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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
Griggstown, NJ

Average temperature in August - Griggstown, NJ
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Griggstown, NJ

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

Average wind speed in August - Griggstown, NJ
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in August
Griggstown, NJ

Average humidity in August - Griggstown, NJ
  • Average humidity in August: 75%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in August
Griggstown, NJ

Average rainfall in August - Griggstown, NJ
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").

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Average rainfall days in August
Griggstown, NJ

Average rainfall days in August - Griggstown, NJ
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in August
Griggstown, NJ

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

The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Griggstown, NJ

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

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Griggstown, NJ
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in August
Griggstown, NJ

Average sunshine days in August - Griggstown, NJ
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in August
Griggstown, NJ

Average UV index in August - Griggstown, NJ
  • Average UV index in August: 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, March, November and December (UV index 2).

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Average cloud cover in August
Griggstown, NJ

Average cloud cover in August - Griggstown, NJ
  • Average cloud cover in August: 33

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 33).

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Average visibility in August
Griggstown, NJ

Average visibility in August - Griggstown, NJ
  • Average visibility in August: 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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Griggstown, New Jersey, USA

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