July weather forecast
Harrison, NJ

Share

Weather in July

July, like June, in Harrison, New Jersey, is a moderately hot summer month, with an average temperature varying between 82.9°F (28.3°C) and 69.4°F (20.8°C).

Temperature

Harrison's July weather reaches an average high of 82.9°F (28.3°C) and an average low of 69.4°F (20.8°C), making it the warmest month.

Heat index

In July, the heat index is computed to be a hot 87.8°F (31°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In July, the average relative humidity in Harrison is 71%.

Rainfall

The month with the most rainfall is July, when the rain falls for 17.3 days and typically aggregates up to 3.23" (82mm) of precipitation.

Snowfall

May through October are months without snowfall in Harrison.

Daylight

The average length of the day in July in Harrison is 14h and 45min.
On the first day of the month, sunrise is at 5:29 am and sunset at 8:31 pm. On the last day of July, in Harrison, sunrise is at 5:53 am and sunset at 8:12 pm EDT.

Sunshine

July has the most sunshine of the year in Harrison, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index in Harrison are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Harrison?

In Harrison, July records the average highest temperatures, peaking at 82.9°F (28.3°C) and reaching a low of 69.4°F (20.8°C).

How hot is July in Harrison?

The average high-temperature and low-temperature during July are 82.9°F (28.3°C) and 69.4°F (20.8°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in July in Harrison?

In July, the average relative humidity in Harrison, New Jersey, is 71%.

What is the wettest month in Harrison?

The month with the most rainfall in Harrison is July, when the rain falls for 17.3 days and typically aggregates up to 3.23" (82mm) of precipitation.

How many days does it rain in July in Harrison?

In July, the rain falls for 17.3 days. Throughout July, 3.23" (82mm) of precipitation is accumulated.

When it does not snow in Harrison?

May through October are months without snowfall in Harrison, New Jersey.

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

The average day length in July in Harrison, New Jersey, is 14h and 45min.

When are sunrise and sunset in July in Harrison?

In July, on the first day of the month, sunrise is at 5:29 am and sunset at 8:31 pm. On the last day of the month, in Harrison, sunrise is at 5:53 am and sunset at 8:12 pm EDT.

What month has the most sunshine in Harrison?

With an average of 10.7h of sunshine, July has the most sunshine of the year in Harrison.

How many hours of sunshine does Harrison have in July?

The average sunshine duration in July in Harrison is 10.7h.

What is the month with the highest UV index in Harrison?

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

What is the UV index reading in July in Harrison?

In July, the average daily maximum UV index in Harrison, New Jersey, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Harrison, NJ

Average temperature in July - Harrison, NJ
  • Average high temperature in July: 82.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in July: 69.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in July
Harrison, NJ

Average pressure in July - Harrison, 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).

Average wind speed in July
Harrison, NJ

Average wind speed in July - Harrison, NJ
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in July
Harrison, NJ

Average humidity in July - Harrison, NJ
  • Average humidity in July: 71%

The months with the highest relative humidity are February and December (75%).
The month with the lowest relative humidity is August (70%).

Average rainfall in July
Harrison, NJ

Average rainfall in July - Harrison, NJ
  • Average rainfall in July: 3.23"

The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and February (1.69").

Average rainfall days in July
Harrison, NJ

Average rainfall days in July - Harrison, NJ
  • Average rainfall days in July: 17.3 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in July
Harrison, NJ

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

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Harrison, NJ

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

The months with the highest number of snowfall days are January and February (5.3 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
Harrison, NJ

Average daylight in July / Average sunshine in July - Harrison, NJ
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in July
Harrison, NJ

Average sunshine days in July - Harrison, NJ
  • Average sunshine days in July: 12 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12 days).

Average UV index in July
Harrison, NJ

Average UV index in July - Harrison, 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
Harrison, NJ

Average cloud cover in July - Harrison, NJ
  • Average cloud cover in July: 30

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in July
Harrison, NJ

Average visibility in July - Harrison, 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).

Harrison, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location