July weather forecastCedar Knolls, NJ

July

Weather in July

July, the same as June, is a moderately hot summer month in Cedar Knolls, New Jersey, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 65.7°F (18.7°C).

Temperature

July is the month when Cedar Knolls's temperatures reach their peak, with averages of 83.7°F (28.7°C) and lows of 65.7°F (18.7°C).

Heat index

The heat index in July is computed to be a tropical 91.4°F (33°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

In July, the average relative humidity is 75%.

Rainfall

The month with the most rainfall is July, when the rain falls for 17.6 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In July, the average length of the day in Cedar Knolls 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

With an average of 10.3h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Temperature readings reach their annual highs in July, averaging 83.7°F (28.7°C) and a minimum average of 65.7°F (18.7°C).

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). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 91.4°F (33°C).

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

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

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

June through October are months without snowfall.

In July, the average day length is 14h and 46min.

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.

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

In July, the average sunshine duration is 10.3h.

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

In Cedar Knolls, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

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).

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).

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%).

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").

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).

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").

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).

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

  • Average daylight in July: 14h and 48min

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 18min

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).

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).

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).

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).

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).