August weather forecast and climate
Cedar Grove, NJ

Weather in August

August, the last month of the summer, in Cedar Grove, is also a moderately hot month, with average temperature varying between 66.6°F (19.2°C) and 81.9°F (27.7°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still moderately hot 81.9°F (27.7°C). In Cedar Grove, in August, the average low-temperature is 66.6°F (19.2°C).

Heat index

In August, the average heat index is computed to be a hot 86.5°F (30.3°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like metabolic differences, clothing, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

April and August, with an average relative humidity of 72%, are the least humid months.

Rainfall

In Cedar Grove, in August, it is raining for 16.3 days, with typically 2.6" (66mm) of accumulated precipitation. In Cedar Grove, during the entire year, the rain falls for 153.3 days and collects up to 24.92" (633mm) of precipitation.

Snowfall

May through October are months without snowfall in Cedar Grove.

Daylight

The average length of the day in Cedar Grove, New Jersey, is 13.7h.

Sunshine

In August, the average sunshine in Cedar Grove is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Cedar Grove. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Cedar Grove?

The average high-temperature, in August, is 81.9°F (27.7°C), while the average low-temperature is 66.6°F (19.2°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86.5°F (30.3°C).

What are the least humid months in Cedar Grove?

Months with the lowest humidity in Cedar Grove, New Jersey, are April and August, with an average relative humidity of 72%.

What is the average humidity in August in Cedar Grove?

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

How much does it rain in Cedar Grove in August?

In August, in Cedar Grove, the rain falls for 16.3 days. Throughout August, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in Cedar Grove?

May through October are months without snowfall in Cedar Grove, New Jersey.

What is the average length of the day in August in Cedar Grove?

The average length of the day in August in Cedar Grove, New Jersey, is 13.7h.

How many hours of sunshine does Cedar Grove have in August?

In August, the average sunshine in Cedar Grove is 10.3h.

What is the month with the highest UV index in Cedar Grove?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Cedar Grove.

What is the UV index reading in August in Cedar Grove?

In Cedar Grove, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in August
Cedar Grove, NJ

Average temperature in August - Cedar Grove, NJ
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in August: 66.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in August
Cedar Grove, NJ

Average pressure in August - Cedar Grove, NJ
  • Average pressure in August: 29.98"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in August
Cedar Grove, NJ

Average wind speed in August - Cedar Grove, NJ
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in August
Cedar Grove, NJ

Average humidity in August - Cedar Grove, NJ
  • Average humidity in August: 72%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are April and August (72%).

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Average rainfall in August
Cedar Grove, NJ

Average rainfall in August - Cedar Grove, NJ
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in August
Cedar Grove, NJ

Average rainfall days in August - Cedar Grove, NJ
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in August
Cedar Grove, NJ

Average snowfall in August - Cedar Grove, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.27").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Cedar Grove, NJ

Average snowfall days in August - Cedar Grove, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Cedar Grove, NJ

Average daylight in August / Average sunshine in August - Cedar Grove, NJ
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10.3h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in August
Cedar Grove, NJ

Average sunshine days in August - Cedar Grove, NJ
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.7 days).

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Average UV index in August
Cedar Grove, NJ

Average UV index in August - Cedar Grove, NJ
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
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
Cedar Grove, NJ

Average cloud cover in August - Cedar Grove, NJ
  • Average cloud cover in August: 31

Months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in August
Cedar Grove, NJ

Average visibility in August - Cedar Grove, NJ
  • Average visibility in August: 6mi

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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