August weather forecast
Chester, NJ

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Weather in August

The last month of the summer, August, is also a moderately hot month in Chester, New Jersey, with an average temperature ranging between min 63°F (17.2°C) and max 81.3°F (27.4°C).

Temperature

The onset of August notes an average high-temperature of a still warm 81.3°F (27.4°C), subtly shifted from July's 83.7°F (28.7°C). Chester's August nights cool down to an average low-temperature of 63°F (17.2°C).

Heat index

August's heat index is estimated at a tropical 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in August is 76%.

Rainfall

In August, the rain falls for 15.5 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. In Chester, during the entire year, the rain falls for 162.6 days and collects up to 33.11" (841mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:32 pm EDT.

Sunshine

In Chester, the average sunshine in August is 10h.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 5 in August translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Chester in August?

The high-temperature, in August, in Chester, records 81.3°F (27.4°C), while the low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 86°F (30°C).

What is the average humidity in August?

In Chester, the average relative humidity in August is 76%.

How many days does it rain in August?

In Chester, in August, it is raining for 15.5 days, with typically 2.91" (74mm) of accumulated precipitation.

When it does not snow?

In Chester, snow does not fall in June through September.

What is the average length of the day in August?

In Chester, the average day length in August is 13h and 45min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:56 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:32 pm EDT.

How many hours of sunshine does Chester have in August?

In August, the average sunshine duration is 10h.

What is the UV index reading in August in Chester?

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Chester, NJ

Average temperature in August - Chester, NJ
  • Average high temperature in August: 81.3°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 (35.1°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in August
Chester, NJ

Average pressure in August - Chester, NJ
  • Average pressure in August: 29.99"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
Chester, NJ

Average wind speed in August - Chester, NJ
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
Chester, NJ

Average humidity in August - Chester, NJ
  • Average humidity in August: 76%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in August
Chester, NJ

Average rainfall in August - Chester, NJ
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Chester, NJ

Average rainfall days in August - Chester, NJ
  • Average rainfall days in August: 15.5 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in August
Chester, NJ

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

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Chester, NJ

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

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Chester, NJ
  • Average daylight in August: 13h and 4min

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 0min

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 36min).

Average sunshine days in August
Chester, NJ

Average sunshine days in August - Chester, NJ
  • Average sunshine days in August: 12.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in August
Chester, NJ

Average UV index in August - Chester, NJ
  • Average UV index in August: 5

The months with the highest UV index are June and July (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
Chester, NJ

Average cloud cover in August - Chester, NJ
  • Average cloud cover in August: 34

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in August
Chester, NJ

Average visibility in August - Chester, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).

Chester, New Jersey, USA

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