July weather forecast
Cedar Knolls, NJ

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Weather in July

July, the same as June, is another warm summer month in Cedar Knolls, New Jersey, with an average temperature varying between 83.7°F (28.7°C) and 65.7°F (18.7°C).

Temperature

With average high temperatures of 83.7°F (28.7°C) and lows of 65.7°F (18.7°C), July is the warmest month.

Heat index

For July, the heat index is estimated at a tropical 91.4°F (33°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

In July, the average relative humidity in Cedar Knolls is 75%.

Rainfall

July is the month with the most rainfall in Cedar Knolls. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.

Snowfall

June through October are months without snowfall in Cedar Knolls, New Jersey.

Daylight

In Cedar Knolls, the average length of the day in July is 14h and 46min.
On the first day of the month, sunrise is at 5:30 am and sunset at 8:33 pm. On the last day of July, sunrise is at 5:54 am and sunset at 8:14 pm EDT.

Sunshine

The month with the most sunshine in Cedar Knolls is July, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index in Cedar Knolls, New Jersey, are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 6 in July leads to these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What month is the hottest in Cedar Knolls?

Cedar Knolls reaches its average highest temperatures in July, measuring 83.7°F (28.7°C) at the peak and 65.7°F (18.7°C) at the lowest.

How hot does it get in Cedar Knolls in July?

An average high-temperature, in July, in Cedar Knolls, is 83.7°F (28.7°C) and the average low-temperature is 65.7°F (18.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 91.4°F (33°C).

What is the average humidity in July in Cedar Knolls?

In Cedar Knolls, the average relative humidity in July is 75%.

What is the rainiest month in Cedar Knolls?

July is the month with the most rainfall in Cedar Knolls, New Jersey. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.

How much does it rain in Cedar Knolls in July?

In Cedar Knolls, in July, during 17.6 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow in Cedar Knolls?

In Cedar Knolls, snow does not fall in June through October.

How many hours of daylight does Cedar Knolls have in July?

The average day length in July in Cedar Knolls, New Jersey, is 14h and 46min.

What time are sunrise and sunset in July in Cedar Knolls?

On the first day of July, sunrise is at 5:30 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:14 pm EDT.

What month has the most sunshine in Cedar Knolls?

With an average of 10.3h of sunshine, July has the most sunshine of the year in Cedar Knolls, New Jersey.

How many hours of sunshine does Cedar Knolls have in July?

In Cedar Knolls, the average sunshine duration in July is 10.3h.

When is the highest UV index in Cedar Knolls?

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

How high is the UV index in July in Cedar Knolls?

The average daily maximum UV index in July in Cedar Knolls, New Jersey, is 6. A UV Index estimate of 6 to 7 represents a high health threat from 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 July
Cedar Knolls, NJ

Average temperature in July - Cedar Knolls, NJ
  • Average high temperature in July: 83.7°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 (34.9°F).

  • Average low temperature in July: 65.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in July
Cedar Knolls, NJ

Average pressure in July - Cedar Knolls, NJ
  • Average pressure in July: 29.96"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 July
Cedar Knolls, NJ

Average wind speed in July - Cedar Knolls, NJ
  • Average wind speed in July: 5.4mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in July
Cedar Knolls, NJ

Average humidity in July - Cedar Knolls, NJ
  • Average humidity in July: 75%

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in July
Cedar Knolls, NJ

Average rainfall in July - Cedar Knolls, NJ
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

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Average rainfall days in July
Cedar Knolls, NJ

Average rainfall days in July - Cedar Knolls, NJ
  • Average rainfall days in July: 17.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in July
Cedar Knolls, NJ

Average snowfall in July - Cedar Knolls, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in July
Cedar Knolls, NJ

Average snowfall days in July - Cedar Knolls, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Cedar Knolls, NJ

Average daylight in July / Average sunshine in July - Cedar Knolls, NJ
  • Average daylight in July: 14h 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 July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in July
Cedar Knolls, NJ

Average sunshine days in July - Cedar Knolls, NJ
  • Average sunshine days in July: 10.9 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in July
Cedar Knolls, NJ

Average UV index in July - Cedar Knolls, NJ
  • Average UV index in July: 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 July
Cedar Knolls, NJ

Average cloud cover in July - Cedar Knolls, NJ
  • Average cloud cover in July: 34

The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in July
Cedar Knolls, NJ

Average visibility in July - Cedar Knolls, NJ
  • Average visibility in July: 6mi

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

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Cedar Knolls, New Jersey, USA

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