August weather forecast
Clifton, NJ

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Weather in August

By August, the weather in Clifton, New Jersey, remains in the summer groove. Although the temperatures start to decline from July’s highs, they remain comfortably settled in the 80°F (26.7°C) range. Interestingly, August sees a slight decrease in average daylight hours compared to July, but they're still high enough to enjoy a lot of sunshine. With a reduction in different aspects from temperature to rainfall, unlike the decreasing trends, the relative humidity jumps back up to 71%.

Temperature

The start of August marks an average high-temperature of a still warm 82°F (27.8°C), hardly distinguishable from the conditions in July. Nighttime temperature in Clifton dips to a mean of 66.7°F (19.3°C) during August.

Heat index

Throughout August, the heat index is estimated at a tropical 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Consider that heat index readings are for situations in the shade and light wind. 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 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

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

Rainfall

In August, the rain falls for 16 days. Throughout August, 2.99" (76mm) of precipitation is accumulated. In Clifton, New Jersey, during the entire year, the rain falls for 164.6 days and collects up to 33.46" (850mm) of precipitation.

Snowfall

May through September are months without snowfall in Clifton.

Daylight

In August, the average length of the day in Clifton 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 Clifton, 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. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 in August translates into these instructions:
Deter overexposure. Protecting against the sun's effects 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the average August temperature in Clifton?

Clifton in August has an average high-temperature of 82°F (27.8°C) and an average low-temperature of 66.7°F (19.3°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the least humid month in Clifton?

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

What is the average humidity in August in Clifton?

The average relative humidity in August is 71%.

How many days does it rain in August in Clifton?

In Clifton, New Jersey, in August, during 16 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow in Clifton?

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

How many hours of daylight does Clifton have in August?

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

When are sunrise and sunset in August in Clifton?

On the first day of August in Clifton, 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 Clifton?

In Clifton, the average sunshine duration in August is 10.3h.

What are the months with the highest UV index in Clifton?

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

What is the UV index intensity in August in Clifton?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Clifton, NJ

Average temperature in August - Clifton, NJ
  • Average high temperature in August: 82°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: 66.7°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 (23.9°F).

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Average pressure in August
Clifton, NJ

Average pressure in August - Clifton, 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
Clifton, NJ

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

The windiest months (with the highest average wind speed) are January and March (8.7mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in August
Clifton, NJ

Average humidity in August - Clifton, 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%).

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Average rainfall in August
Clifton, NJ

Average rainfall in August - Clifton, NJ
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in August
Clifton, NJ

Average rainfall days in August - Clifton, NJ
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (9 days).

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Average snowfall in August
Clifton, NJ

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

The months with the highest snowfall are February and March (3.58").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Clifton, NJ

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

The month with the highest number of snowfall days is February (7.7 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
Clifton, NJ

Average daylight in August / Average sunshine in August - Clifton, 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).

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Average sunshine days in August
Clifton, NJ

Average sunshine days in August - Clifton, NJ
  • Average sunshine days in August: 12.2 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in August
Clifton, NJ

Average UV index in August - Clifton, 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
Clifton, NJ

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

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

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Average visibility in August
Clifton, NJ

Average visibility in August - Clifton, 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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Clifton, New Jersey, USA

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