August weather forecast
Roseland, NJ

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Weather in August

The last month of the summer, August, is another warm month in Roseland, New Jersey, with an average temperature varying between 66.7°F and 81.9°F.

Temperature

During August, the average high-temperature is a still moderately hot 81.9°F, maintaining a close resemblance to that of the preceding month. Roseland in August anticipates an average nighttime temperature of 66.7°F.

Heat index

In August, the heat index is estimated at a tropical 86°F. If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The months with the lowest humidity in Roseland, New Jersey, are April and August, with an average relative humidity of 72%.

Rainfall

In Roseland, in August, during 14.1 rainfall days, 1.38" of precipitation is typically accumulated. Throughout the year, in Roseland, there are 127.3 rainfall days, and 12.68" of precipitation is accumulated.

Snowfall

In Roseland, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 45min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:31 pm EDT.

Sunshine

In Roseland, the average sunshine in August is 10.4h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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FAQ

What is the usual temperature for Roseland in August?

Roseland in August has an average high-temperature of 81.9°F and an average low-temperature of 66.7°F. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F.

What is the least humid month in Roseland?

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

What is the average humidity in August in Roseland?

In August, the average relative humidity is 72%.

How much does it rain in Roseland in August?

In Roseland, in August, it is raining for 14.1 days, with typically 1.38" of accumulated precipitation.

When it does not snow in Roseland?

May through September are months without snowfall in Roseland.

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

In Roseland, New Jersey, the average day length in August is 13h and 45min.

What time are sunrise and sunset in August in Roseland?

On the first day of August, sunrise is at 5:53 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:31 pm EDT.

How long on average sun shines in August in Roseland?

In August, the average sunshine duration in Roseland, New Jersey, is 10.4h.

What is the month with the highest UV index in Roseland?

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

What is the UV index intensity in August in Roseland?

In August, the average daily maximum UV index in Roseland, New Jersey, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Roseland, NJ

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

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in August: 66.7°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 (23.7°F).

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Average pressure in August
Roseland, NJ

Average pressure in August - Roseland, 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
Roseland, NJ

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

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in August
Roseland, NJ

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

The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are April and August (72%).

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Average rainfall in August
Roseland, NJ

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

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

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Average rainfall days in August
Roseland, NJ

Average rainfall days in August - Roseland, NJ
  • Average rainfall days in August: 14.1 days

The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in August
Roseland, NJ

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

The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Roseland, NJ

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

The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Roseland, NJ
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • 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 42min).

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Average sunshine days in August
Roseland, NJ

Average sunshine days in August - Roseland, NJ
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in August
Roseland, NJ

Average UV index in August - Roseland, 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
Roseland, NJ

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

The 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
Roseland, NJ

Average visibility in August - Roseland, 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).

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Roseland, New Jersey, USA

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