August weather forecast
Passaic, NJ

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Weather in August

The weather in August in Passaic, New Jersey, begins to wind down from the peak summer heat with temperatures easing to between 66.9°F (19.4°C) and 82.2°F (27.9°C). Despite the days gradually becoming shorter, they are still amply lit for residents to indulge in their favorite outdoor activities. The warm summer nights are ideal for BBQ parties or simply relaxing in local parks. The transition into autumn begins subtly, displaying the first few hints of fall colors.

Temperature

Transitioning into August, Passaic experiences an average high-temperature of a still warm 82.2°F (27.9°C), marking a minor shift from the preceding month. During the August nights, an average temperature of 66.9°F (19.4°C) is observed in Passaic.

Heat index

The average heat index in August is calculated to be a hot 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The least humid month in Passaic is August, with an average relative humidity of 71%.

Rainfall

In Passaic, in August, during 15.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Passaic, during the entire year, the rain falls for 150.9 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

In Passaic, the average sunshine in August is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Passaic. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August in Passaic?

In August, in Passaic, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 87.8°F (31°C).

What is the least humid month in Passaic?

August is the least humid month in Passaic, New Jersey, with an average relative humidity of 71%.

What is the average humidity in August in Passaic?

In August, the average relative humidity in Passaic, New Jersey, is 71%.

How many days does it rain in August in Passaic?

In Passaic, in August, during 15.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in Passaic?

In Passaic, New Jersey, snow does not fall in May through October.

How many hours of daylight does Passaic have in August?

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

When is the sunrise / sunset in August in Passaic?

On the first day of August in Passaic, New Jersey, sunrise is at 5:53 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 long on average sun shines in August in Passaic?

In Passaic, New Jersey, the average sunshine duration in August is 10.3h.

When is the highest UV index in Passaic?

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

How high is the UV index in August in Passaic?

In August, the average daily maximum UV index in Passaic is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Passaic, NJ

Average temperature in August - Passaic, NJ
  • Average high temperature in August: 82.2°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 (35.4°F).

  • Average low temperature in August: 66.9°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in August
Passaic, NJ

Average pressure in August - Passaic, 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
Passaic, NJ

Average wind speed in August - Passaic, 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 months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in August
Passaic, NJ

Average humidity in August - Passaic, NJ
  • Average humidity in August: 71%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (71%).

Average rainfall in August
Passaic, NJ

Average rainfall in August - Passaic, NJ
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is February (1.46").

Average rainfall days in August
Passaic, NJ

Average rainfall days in August - Passaic, NJ
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in August
Passaic, NJ

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

The month with the highest snowfall is March (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Passaic, NJ

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

The month with the highest number of snowfall days is February (5.9 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
Passaic, NJ

Average daylight in August / Average sunshine in August - Passaic, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in August
Passaic, NJ

Average sunshine days in August - Passaic, NJ
  • Average sunshine days in August: 12.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in August
Passaic, NJ

Average UV index in August - Passaic, 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
Passaic, NJ

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

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

Average visibility in August
Passaic, NJ

Average visibility in August - Passaic, 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).

Passaic, New Jersey, USA

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