August weather forecast
Dunellen, NJ

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Weather in August

August, the last month of the summer in Dunellen, is also a moderately hot month, with an average temperature varying between 65.3°F (18.5°C) and 82.6°F (28.1°C).

Temperature

As Dunellen steps into August, the average high-temperature is measured at a still warm 82.6°F (28.1°C), displaying minor differences from July's 84.4°F (29.1°C). During August, Dunellen records an average temperature of 65.3°F (18.5°C) at night.

Heat index

In August, the heat index is calculated to be a hot 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The months with the lowest humidity in Dunellen are April and August, with an average relative humidity of 73%.

Rainfall

In August, in Dunellen, the rain falls for 14.4 days. Throughout August, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 155.4 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Dunellen, New Jersey.

Daylight

In August, the average length of the day in Dunellen is 13h and 44min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:31 pm EDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

The months with the highest UV index in Dunellen are June 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 unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Fend off overexposure. Sun protection is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot is it in Dunellen in August?

The high-temperature, in August, in Dunellen, records 82.6°F (28.1°C), while the low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 87.8°F (31°C).

What are the least humid months in Dunellen?

The months with the lowest humidity are April and August, with an average relative humidity of 73%.

What is the average humidity in August in Dunellen?

In August, the average relative humidity is 73%.

How much does it rain in Dunellen in August?

In Dunellen, in August, during 14.4 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow in Dunellen?

June through September are months without snowfall in Dunellen.

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

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

What time are sunrise and sunset in August in Dunellen?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:12 pm. On the last day of the month, in Dunellen, New Jersey, sunrise is at 6:24 am and sunset at 7:31 pm EDT.

How long on average sun shines in August in Dunellen?

The average sunshine duration in August in Dunellen is 9.9h.

When is the highest UV index in Dunellen?

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

How high is the UV index in August in Dunellen?

The average daily maximum UV index in August in Dunellen is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
Dunellen, NJ

Average temperature in August - Dunellen, NJ
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in August: 65.3°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in August
Dunellen, NJ

Average pressure in August - Dunellen, 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
Dunellen, NJ

Average wind speed in August - Dunellen, NJ
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Dunellen, NJ

Average humidity in August - Dunellen, NJ
  • Average humidity in August: 73%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).

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Average rainfall in August
Dunellen, NJ

Average rainfall in August - Dunellen, NJ
  • Average rainfall in August: 2.52"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in August
Dunellen, NJ

Average rainfall days in August - Dunellen, NJ
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in August
Dunellen, NJ

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

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Dunellen, NJ

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Dunellen, 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: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Dunellen, NJ

Average sunshine days in August - Dunellen, NJ
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in August
Dunellen, NJ

Average UV index in August - Dunellen, 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
Dunellen, NJ

Average cloud cover in August - Dunellen, NJ
  • Average cloud cover in August: 35

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in August
Dunellen, NJ

Average visibility in August - Dunellen, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Dunellen, New Jersey, USA

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