August weather forecast and climate
Edison, NJ

The last month of the summer, August, is also a moderately hot month in Edison, New Jersey, with average temperature fluctuating between 67.5°F (19.7°C) and 82.6°F (28.1°C).

Temperature

In Edison, New Jersey, the average high-temperature is relatively the same as in July - a still warm 82.6°F (28.1°C). The average low-temperature, in Edison, is 67.5°F (19.7°C).

Heat index

In August, the average heat index is calculated to a tropical 88°F (31.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like metabolic differences, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The least humid month in Edison is August, with an average relative humidity of 72%.

Rainfall

In Edison, during August, the rain falls for 15.1 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 149.9 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Edison, New Jersey.

Daylight

The average length of the day in Edison is 13.7h.

Sunshine

The average sunshine in August is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in August in Edison?

The average high-temperature, in August, in Edison, is 82.6°F (28.1°C), while the average low-temperature is 67.5°F (19.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is estimated at 88°F (31.1°C).

What is the least humid month in Edison?

August is the least humid month in Edison, with an average relative humidity of 72%.

What is the average humidity in August in Edison?

In Edison, New Jersey, the average relative humidity in August is 72%.

How much does it rain in Edison in August?

In Edison, New Jersey, in August, it is raining for 15.1 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Edison?

In Edison snow does not fall in May through October.

How many hours of daylight does Edison have in August?

In August, the average length of the day is 13.7h.

How many hours of sunshine does Edison have in August?

In August, the average sunshine in Edison, New Jersey, is 10h.

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

May through August, with an average maximum UV index of 6, are months with the highest UV index in Edison, New Jersey.

What is the UV index intensity in August in Edison?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in August - Edison, NJ
  • Average high temperature in August: 28.1°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (2.6°C).

  • Average low temperature in August: 19.7°C

The month with the highest average low temperature is July (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in August - Edison, NJ
  • Average pressure in August: 1015.4mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in August - Edison, NJ
  • Average wind speed in August: 9.7km/h

The windiest month (with the highest average wind speed) is March (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (9.7km/h).

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

Months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).

Average rainfall in August - Edison, NJ
  • Average rainfall in August: 71mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is September (39mm).

Average rainfall days in August - Edison, NJ
  • Average rainfall days in August: 15.1 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in August - Edison, NJ
  • Average snowfall in August: 0mm

The month with the highest snowfall is March (83mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is January (5.6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Edison, NJ
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in August - Edison, NJ
  • Average sunshine days in August: 12.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August - Edison, NJ
  • Average UV index in August: 6

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August - Edison, NJ
  • Average cloud cover in August: 33

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August - Edison, NJ
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).