July weather forecast
Montclair, NJ

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Weather in July

July, the same as June, is a moderately hot summer month in Montclair, New Jersey, with an average temperature ranging between min 67.6°F (19.8°C) and max 84.2°F (29°C).

Temperature

July, characterized by an average high temperature of 84.2°F (29°C) and a low temperature of 67.6°F (19.8°C), is generally the warmest month.

Heat index

For July, the heat index is calculated to be a hot 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

The average relative humidity in July is 73%.

Rainfall

July is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.07" (78mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 46min.
On the first day of July, sunrise is at 5:29 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:13 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.5h 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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 in July translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

The month of July sees the average highest temperatures, reaching 84.2°F (29°C) at the peak and 67.6°F (19.8°C) at the low.

Is it hot during July?

The average high-temperature and low-temperature during July are 84.2°F (29°C) and 67.6°F (19.8°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in July is calculated to be 91.4°F (33°C).

What is the average humidity in July?

The average relative humidity in July is 73%.

What is the rainiest month in Montclair?

July is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.07" (78mm) of precipitation.

How much does it rain in July?

In July, the rain falls for 17.7 days. Throughout July, 3.07" (78mm) of precipitation is accumulated.

When it does not snow?

In Montclair, snow does not fall in May through October.

What is the average length of the day in July?

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

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:29 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:13 pm EDT.

What month has the most sunshine?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July?

The average sunshine duration in July is 10.5h.

When is the highest UV index?

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

What is the UV index intensity in July?

In Montclair, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
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
Montclair, NJ

Average temperature in July - Montclair, NJ
  • Average high temperature in July: 84.2°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in July
Montclair, NJ

Average pressure in July - Montclair, 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
Montclair, NJ

Average wind speed in July - Montclair, NJ
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

Average humidity in July
Montclair, NJ

Average humidity in July - Montclair, NJ
  • Average humidity in July: 73%

The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are April and August (72%).

Average rainfall in July
Montclair, NJ

Average rainfall in July - Montclair, NJ
  • Average rainfall in July: 3.07"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in July
Montclair, NJ

Average rainfall days in July - Montclair, NJ
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in July
Montclair, NJ

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

The month with the highest snowfall is March (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Montclair, NJ

Average snowfall days in July - Montclair, 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 May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Montclair, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in July
Montclair, NJ

Average sunshine days in July - Montclair, NJ
  • Average sunshine days in July: 10.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in July
Montclair, NJ

Average UV index in July - Montclair, 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
Montclair, NJ

Average cloud cover in July - Montclair, NJ
  • Average cloud cover in July: 32

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in July
Montclair, NJ

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

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

Montclair, New Jersey, USA

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