July weather forecast and climate
Edison, NJ

July, the same as June, is a moderately hot summer month in Edison, New Jersey, with average temperature ranging between max 84°F (28.9°C) and min 68.2°F (20.1°C).

Temperature

With an average high-temperature of 84°F (28.9°C) and an average low-temperature of 68.2°F (20.1°C), July is the warmest month.

Heat index

The average heat index is estimated at a hot 91.6°F (33.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, pregnancy, metabolic differences, and clothing affect individual temperature impact. 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 especially crucial for babies and toddlers. 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

In Edison, New Jersey, the average relative humidity in July is 73%.

Rainfall

July is the month with the most rainfall in Edison. Rain falls for 16.8 days and accumulates 3.07" (78mm) of precipitation.

Snowfall

In Edison snow does not fall in May through October.

Daylight

In July, the average length of the day in Edison is 14.7h.

Sunshine

The month with the most sunshine is July, with an average of 10.4h of sunshine.

UV index

Months with the highest UV index in Edison are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the warmest month in Edison?

With an average high-temperature of 84°F (28.9°C) and an average low-temperature of 68.2°F (20.1°C), July is the warmest month in Edison, New Jersey.

What is the temperature in July in Edison?

The average high-temperature, in July, in Edison, is 84°F (28.9°C), while the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines both air temperature and relative humidity, in July is estimated at 91.6°F (33.1°C).

What is the average humidity in July in Edison?

The average relative humidity in July is 73%.

How many days does it rain in July in Edison?

In Edison, New Jersey, during July, the rain falls for 16.8 days and regularly aggregates up to 3.07" (78mm) of precipitation.

What is the wettest month in Edison?

The month with the most rainfall is July when the rain falls for 16.8 days and typically aggregates up to 3.07" (78mm) of precipitation.

When it does not snow in Edison?

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

What is the average length of the day in July in Edison?

In July, the average length of the day in Edison is 14.7h.

What month has the most sunshine in Edison?

The month with the most sunshine in Edison, New Jersey, is July, with an average of 10.4h of sunshine.

How many hours of sunshine does Edison have in July?

In July, the average sunshine is 10.4h.

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

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

What is the UV index reading in July in Edison?

The average daily maximum UV index in July in Edison is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in July - Edison, NJ
  • Average high temperature in July: 28.9°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 July: 20.1°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 July - Edison, NJ
  • Average pressure in July: 1014.5mbar

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 July - Edison, NJ
  • Average wind speed in July: 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 July - Edison, NJ
  • Average humidity in July: 73%

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 July - Edison, NJ
  • Average rainfall in July: 78mm

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

Average rainfall days in July - Edison, NJ
  • Average rainfall days in July: 16.8 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 July - Edison, NJ
  • Average snowfall in July: 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 July - Edison, NJ
  • Average snowfall days in July: 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 July / Average sunshine in July - Edison, NJ
  • Average daylight in July: 14.7h

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 July: 10.4h

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 July - Edison, NJ
  • Average sunshine days in July: 11.3 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 July - Edison, NJ
  • Average UV index in July: 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 July - Edison, NJ
  • Average cloud cover in July: 32

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 July - Edison, NJ
  • Average visibility in July: 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).