July weather forecast
Demarest, NJ

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Weather in July

July, the same as June, is another warm summer month in Demarest, New Jersey, with an average temperature ranging between min 68°F (20°C) and max 84.9°F (29.4°C).

Temperature

Demarest records the warmest temperatures in July, averaging a high of 84.9°F (29.4°C) and a low of 68°F (20°C).

Heat index

July's mean heat index is estimated at a hot 93.2°F (34°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. 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 Demarest is 70%.

Rainfall

In Demarest, during July, the rain falls for 16.1 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Demarest, New Jersey, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

May through October are months without snowfall in Demarest.

Daylight

In Demarest, the average length of the day in July is 14h and 46min.
On the first day of the month, sunrise is at 5:28 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

Sunshine

July has the most sunshine of the year in Demarest, with an average of 10.3h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What part of the year is the hottest in Demarest?

The month of July sees the average highest temperatures in Demarest, reaching 84.9°F (29.4°C) at the peak and 68°F (20°C) at the low.

How hot does it get in Demarest in July?

Demarest in July has an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is estimated at 93.2°F (34°C).

What is the average humidity in July in Demarest?

In Demarest, New Jersey, the average relative humidity in July is 70%.

How much does it rain in Demarest in July?

In Demarest, in July, it is raining for 16.1 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Demarest?

May through October are months without snowfall.

How many hours of daylight does Demarest have in July?

In Demarest, New Jersey, the average day length in July is 14h and 46min.

When is the sunrise / sunset in July in Demarest?

On the first day of July in Demarest, New Jersey, sunrise is at 5:28 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

What month has the most sunshine in Demarest?

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

How long on average sun shines in July in Demarest?

In Demarest, New Jersey, the average sunshine duration in July is 10.3h.

When is the highest UV index in Demarest?

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

How high is the UV index in July in Demarest?

In July, the average daily maximum UV index in Demarest, New Jersey, is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Demarest, NJ

Average temperature in July - Demarest, NJ
  • Average high temperature in July: 84.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in July
Demarest, NJ

Average pressure in July - Demarest, NJ
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Demarest, NJ

Average wind speed in July - Demarest, NJ
  • Average wind speed in July: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in July
Demarest, NJ

Average humidity in July - Demarest, NJ
  • Average humidity in July: 70%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).

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Average rainfall in July
Demarest, NJ

Average rainfall in July - Demarest, NJ
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in July
Demarest, NJ

Average rainfall days in July - Demarest, NJ
  • Average rainfall days in July: 16.1 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in July
Demarest, NJ

Average snowfall in July - Demarest, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Demarest, NJ

Average snowfall days in July - Demarest, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Demarest, NJ

Average daylight in July / Average sunshine in July - Demarest, 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
Demarest, NJ

Average sunshine days in July - Demarest, NJ
  • Average sunshine days in July: 13.1 days

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

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Average UV index in July
Demarest, NJ

Average UV index in July - Demarest, 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
Demarest, NJ

Average cloud cover in July - Demarest, NJ
  • Average cloud cover in July: 34

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in July
Demarest, NJ

Average visibility in July - Demarest, NJ
  • Average visibility in July: 6mi

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

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Demarest, New Jersey, USA

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