July weather forecast
Old Tappan, NJ

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Weather in July

July, like June, in Old Tappan, New Jersey, is another warm summer month, with an average temperature ranging between min 68°F (20°C) and max 84.9°F (29.4°C).

Temperature

July is the month when Old Tappan sees the highest average temperatures, with a high of 84.9°F (29.4°C) and a low of 68°F (20°C).

Heat index

The average heat index in July is estimated at a tropical 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in July in Old Tappan is 70%.

Rainfall

In Old Tappan, during July, the rain falls for 16.1 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Old Tappan, New Jersey, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In July, the average length of the day is 14h and 47min.
On the first day of July, sunrise is at 5:27 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

Sunshine

With an average of 10.3h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the maximum UV index of 6 suggests this advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are the warmest months?

July, noted for its average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 68°F (20°C), is considered the warmest month.

How hot does it get in July?

The average high-temperature, in July, in Old Tappan, is 84.9°F (29.4°C), while the average low-temperature is 68°F (20°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 93.2°F (34°C).

What is the average humidity in July?

In Old Tappan, the average relative humidity in July is 70%.

How many days does it rain in July?

In Old Tappan, in July, during 16.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Old Tappan have in July?

In Old Tappan, New Jersey, the average day length in July is 14h and 47min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:27 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:12 pm EDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

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

How high is the UV index in July?

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 unsafe exposure to Sun's UV rays.
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
Old Tappan, NJ

Average temperature in July - Old Tappan, NJ
  • Average high temperature in July: 84.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in July
Old Tappan, NJ

Average pressure in July - Old Tappan, 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
Old Tappan, NJ

Average wind speed in July - Old Tappan, NJ
  • Average wind speed in July: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in July
Old Tappan, NJ

Average humidity in July - Old Tappan, NJ
  • Average humidity in July: 70%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall in July
Old Tappan, NJ

Average rainfall in July - Old Tappan, NJ
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in July
Old Tappan, NJ

Average rainfall days in July - Old Tappan, NJ
  • Average rainfall days in July: 16.1 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in July
Old Tappan, NJ

Average snowfall in July - Old Tappan, NJ
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Old Tappan, NJ

Average snowfall days in July - Old Tappan, NJ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.9 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
Old Tappan, NJ

Average daylight in July / Average sunshine in July - Old Tappan, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in July
Old Tappan, NJ

Average sunshine days in July - Old Tappan, NJ
  • Average sunshine days in July: 13.1 days

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

Average UV index in July
Old Tappan, NJ

Average UV index in July - Old Tappan, 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
Old Tappan, NJ

Average cloud cover in July - Old Tappan, NJ
  • Average cloud cover in July: 34

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in July
Old Tappan, NJ

Average visibility in July - Old Tappan, 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).

Old Tappan, New Jersey, USA

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