July weather forecast
South Plainfield, NJ

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Weather in July

July, like June, in South Plainfield, New Jersey, is another warm summer month, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 67.5°F (19.7°C).

Temperature

July brings the highest temperatures, with an average high of 84.2°F (29°C) and an average low of 67.5°F (19.7°C).

Heat index

July's average heat index is evaluated at a hot 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In South Plainfield, New Jersey, the average relative humidity in July is 74%.

Rainfall

In South Plainfield, in July, it is raining for 16.5 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, in South Plainfield, there are 160.7 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

In South Plainfield, snow does not fall in June through September.

Daylight

In South Plainfield, New Jersey, the average length of the day in July is 14h and 44min.
On the first day of the month, sunrise is at 5:31 am and sunset at 8:32 pm. On the last day of July, sunrise is at 5:54 am and sunset at 8:13 pm EDT.

Sunshine

The month with the most sunshine in South Plainfield, New Jersey, is July, with an average of 10.5h of sunshine.

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 hazard from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 6 in July transforms into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What is the warmest month in South Plainfield?

In South Plainfield, July is the month with the highest recorded average temperatures, measuring a high of 84.2°F (29°C) and a low of 67.5°F (19.7°C).

How hot is July in South Plainfield?

The high-temperature in South Plainfield during July is 84.2°F (29°C) and the low-temperature is 67.5°F (19.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 91.4°F (33°C).

What is the average humidity in July in South Plainfield?

In July, the average relative humidity is 74%.

How much does it rain in South Plainfield in July?

In South Plainfield, in July, during 16.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

When it does not snow in South Plainfield?

June through September are months without snowfall in South Plainfield.

What is the average length of the day in July in South Plainfield?

The average day length in July in South Plainfield is 14h and 44min.

What time are sunrise and sunset in July in South Plainfield?

In July, on the first day of the month, sunrise is at 5:31 am and sunset at 8:32 pm. On the last day of the month, in South Plainfield, New Jersey, sunrise is at 5:54 am and sunset at 8:13 pm EDT.

What month has the most sunshine in South Plainfield?

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

How long on average sun shines in July in South Plainfield?

In July, the average sunshine duration in South Plainfield, New Jersey, is 10.5h.

What is the month with the highest UV index in South Plainfield?

June through August, with an average maximum UV index of 6, are months with the highest UV index in South Plainfield, New Jersey.

What is the UV index reading in July in South Plainfield?

In July, the average daily maximum UV index in South Plainfield is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's 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
South Plainfield, NJ

Average temperature in July - South Plainfield, 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 (36°F).

  • Average low temperature in July: 67.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in July
South Plainfield, NJ

Average pressure in July - South Plainfield, 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
South Plainfield, NJ

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

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in July
South Plainfield, NJ

Average humidity in July - South Plainfield, NJ
  • Average humidity in July: 74%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and August (73%).

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Average rainfall in July
South Plainfield, NJ

Average rainfall in July - South Plainfield, NJ
  • Average rainfall in July: 3.03"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in July
South Plainfield, NJ

Average rainfall days in July - South Plainfield, NJ
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in July
South Plainfield, NJ

Average snowfall in July - South Plainfield, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
South Plainfield, NJ

Average snowfall days in July - South Plainfield, NJ
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
South Plainfield, NJ

Average daylight in July / Average sunshine in July - South Plainfield, NJ
  • Average daylight in July: 14h and 4min

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 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 36min).

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Average sunshine days in July
South Plainfield, NJ

Average sunshine days in July - South Plainfield, NJ
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in July
South Plainfield, NJ

Average UV index in July - South Plainfield, 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
South Plainfield, NJ

Average cloud cover in July - South Plainfield, NJ
  • Average cloud cover in July: 32

The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in July
South Plainfield, NJ

Average visibility in July - South Plainfield, 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).

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South Plainfield, New Jersey, USA

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