July weather forecast
Mendham, NJ

Weather in July

July, the same as June, is a moderately hot summer month in Mendham, New Jersey, with average temperature ranging between min 64.8°F (18.2°C) and max 83.7°F (28.7°C).

Temperature

The warmest month is July, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.8°F (18.2°C).

Heat index

In July, the average heat index is computed to be a tropical 91.6°F (33.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like wind, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. 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 are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in July is 76%.

Rainfall

In Mendham, New Jersey, during July, the rain falls for 17.3 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, in Mendham, there are 162.6 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Mendham, New Jersey.

Daylight

The average length of the day is 14.7h.

Sunshine

July has the most sunshine of the year in Mendham, with an average of 10.5h of sunshine.

UV index

Months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Mendham?

With an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.8°F (18.2°C), July is the warmest month in Mendham.

What is the temperature in July in Mendham?

In Mendham, New Jersey, in July, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 64.8°F (18.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 91.6°F (33.1°C).

What is the average humidity in July in Mendham?

In Mendham, New Jersey, the average relative humidity in July is 76%.

How many days does it rain in July in Mendham?

In Mendham, New Jersey, in July, during 17.3 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

When it does not snow in Mendham?

In Mendham snow does not fall in June through September.

How many hours of daylight does Mendham have in July?

In Mendham, the average length of the day in July is 14.7h.

What month has the most sunshine in Mendham?

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

How long on average sun shines in July in Mendham?

In Mendham, the average sunshine in July is 10.5h.

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

June and July, with an average maximum UV index of 6, are months with the highest UV index in Mendham, New Jersey.

What is the UV index reading in July in Mendham?

The average daily maximum UV index in July in Mendham is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in July
Mendham, NJ

Average temperature in July - Mendham, NJ
  • Average high temperature in July: 83.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure in July
Mendham, NJ

Average pressure in July - Mendham, NJ
  • Average pressure in July: 29.96"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in July
Mendham, NJ

Average wind speed in July - Mendham, NJ
  • Average wind speed in July: 5.2mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in July
Mendham, NJ

Average humidity in July - Mendham, NJ
  • Average humidity in July: 76%

Months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in July
Mendham, NJ

Average rainfall in July - Mendham, NJ
  • Average rainfall in July: 3.31"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in July
Mendham, NJ

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

Months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in July
Mendham, NJ

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

The month with the highest snowfall is March (4.49").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Mendham, NJ

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

The month with the highest number of snowfall days is January (8.3 days).
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
Mendham, NJ

Average daylight in July / Average sunshine in July - Mendham, NJ
  • Average daylight in July: 14.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in July: 10.5h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in July
Mendham, NJ

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

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in July
Mendham, NJ

Average UV index in July - Mendham, NJ
  • Average UV index in July: 6

Months with the highest UV index are June and July (UV index 6).
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
Mendham, NJ

Average cloud cover in July - Mendham, NJ
  • Average cloud cover in July: 33

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in July
Mendham, NJ

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

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

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