August weather forecast
Roselle Park, NJ

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Weather in August

August, the last month of the summer in Roselle Park, is also a moderately hot month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 67.3°F (19.6°C).

Temperature

Shifting into August, Roselle Park records an average high-temperature of a still warm 81.9°F (27.7°C), presenting minor fluctuations compared to the previous month. During the month of August, an average temperature of 67.3°F (19.6°C) is noted during the nights.

Heat index

The average heat index in August is evaluated at a tropical 86°F (30°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Note that heat index values are valued for light wind and location in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
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 experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

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

Rainfall

In Roselle Park, in August, it is raining for 13.1 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 117.5 rainfall days, and 9.17" (233mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 44min.
On the first day of August in Roselle Park, sunrise is at 5:54 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

Sunshine

In Roselle Park, 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 threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Roselle Park, records 81.9°F (27.7°C), while the low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 86°F (30°C).

What is the least humid month?

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

What is the average humidity in August?

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

How much does it rain in Roselle Park in August?

In Roselle Park, in August, during 13.1 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Roselle Park have in August?

In Roselle Park, the average day length in August is 13h and 44min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

How many hours of sunshine does Roselle Park have in August?

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

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Roselle Park, NJ

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

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in August
Roselle Park, NJ

Average pressure in August - Roselle Park, 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).

Average wind speed in August
Roselle Park, NJ

Average wind speed in August - Roselle Park, NJ
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in August
Roselle Park, NJ

Average humidity in August - Roselle Park, NJ
  • Average humidity in August: 72%

The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).

Average rainfall in August
Roselle Park, NJ

Average rainfall in August - Roselle Park, NJ
  • Average rainfall in August: 1.02"

The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in August
Roselle Park, NJ

Average rainfall days in August - Roselle Park, NJ
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in August
Roselle Park, NJ

Average snowfall in August - Roselle Park, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Roselle Park, NJ

Average snowfall days in August - Roselle Park, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Roselle Park, NJ

Average daylight in August / Average sunshine in August - Roselle Park, 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 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).

Average sunshine days in August
Roselle Park, NJ

Average sunshine days in August - Roselle Park, NJ
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).

Average UV index in August
Roselle Park, NJ

Average UV index in August - Roselle Park, 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).

Average cloud cover in August
Roselle Park, NJ

Average cloud cover in August - Roselle Park, NJ
  • Average cloud cover in August: 30

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Roselle Park, NJ

Average visibility in August - Roselle Park, 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).

Roselle Park, New Jersey, USA

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