July weather forecast
Caldwell, NJ

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Weather in July

July, like June, in Caldwell, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 65.8°F (18.8°C) and 83.8°F (28.8°C).

Temperature

The average temperatures reach their apex in July, averaging 83.8°F (28.8°C) at the high end and 65.8°F (18.8°C) at the low end.

Heat index

For most parts of July, the heat index is estimated at a hot 91.4°F (33°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Caldwell, the average relative humidity in July is 74%.

Rainfall

July is the month with the most rainfall in Caldwell. Rain falls for 17.8 days and accumulates 3.15" (80mm) of precipitation.

Snowfall

In Caldwell, New Jersey, snow does not fall in June through October.

Daylight

The average length of the day in July in Caldwell 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 in Caldwell is July, with an average of 10.4h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Caldwell. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in July transforms into this advice:
Ward off overexposure. Defence against solar harm is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun 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 are the warmest months in Caldwell?

In Caldwell, July is the month with the highest recorded average temperatures, measuring a high of 83.8°F (28.8°C) and a low of 65.8°F (18.8°C).

Is it hot in Caldwell during July?

The high-temperature, in July, in Caldwell, is 83.8°F (28.8°C), while the low-temperature averages to 65.8°F (18.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in July in Caldwell?

In July, the average relative humidity is 74%.

What is the wettest month in Caldwell?

The month with the most rainfall is July, when the rain falls for 17.8 days and typically aggregates up to 3.15" (80mm) of precipitation.

How many days does it rain in July in Caldwell?

In Caldwell, New Jersey, during July, the rain falls for 17.8 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in Caldwell?

In Caldwell, snow does not fall in June through October.

How many hours of daylight does Caldwell have in July?

The average day length in July in Caldwell, New Jersey, is 14h and 46min.

When are sunrise and sunset in July in Caldwell?

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

What month has the most sunshine in Caldwell?

July has the most sunshine of the year in Caldwell, New Jersey, with an average of 10.4h of sunshine.

How many hours of sunshine does Caldwell have in July?

In July, the average sunshine duration in Caldwell, New Jersey, is 10.4h.

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

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

What is the UV index reading in July in Caldwell?

In Caldwell, New Jersey, the average daily maximum UV index in July is 6. A UV Index estimate 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
Caldwell, NJ

Average temperature in July - Caldwell, NJ
  • Average high temperature in July: 83.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in July
Caldwell, NJ

Average pressure in July - Caldwell, 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
Caldwell, NJ

Average wind speed in July - Caldwell, NJ
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in July
Caldwell, NJ

Average humidity in July - Caldwell, NJ
  • Average humidity in July: 74%

The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).

Average rainfall in July
Caldwell, NJ

Average rainfall in July - Caldwell, NJ
  • Average rainfall in July: 3.15"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").

Average rainfall days in July
Caldwell, NJ

Average rainfall days in July - Caldwell, NJ
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in July
Caldwell, NJ

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

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in July
Caldwell, NJ

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

The month with the highest number of snowfall days is February (7 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
Caldwell, NJ

Average daylight in July / Average sunshine in July - Caldwell, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in July
Caldwell, NJ

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

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in July
Caldwell, NJ

Average UV index in July - Caldwell, 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
Caldwell, NJ

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

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in July
Caldwell, NJ

Average visibility in July - Caldwell, 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).

Caldwell, New Jersey, USA

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