August weather forecast
Mount Holly, NJ

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Weather in August

August, the last month of the summer in Mount Holly, is another warm month, with an average temperature varying between 67.6°F (19.8°C) and 83.8°F (28.8°C).

Temperature

Mount Holly's weather in August indicates an average high-temperature of a still warm 83.8°F (28.8°C), nearly consistent with the 85.6°F (29.8°C) of July. In the month of August, the temperature in Mount Holly generally rests at an average low of 67.6°F (19.8°C).

Heat index

August's mean heat index is calculated to be a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. 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 extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

The average relative humidity in August in Mount Holly, New Jersey, is 73%.

Rainfall

The wettest months are July and August, with an average 1.42" (36mm) of rainfall.

Snowfall

In Mount Holly, snow does not fall in April through October.

Daylight

The average length of the day in August is 13h and 42min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:31 pm EDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

The months with the highest UV index in Mount Holly are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Mount Holly during August?

In Mount Holly, 83.8°F (28.8°C) is the average high-temperature and 67.6°F (19.8°C) is the average low-temperature during August. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 91.4°F (33°C).

What is the average humidity in August in Mount Holly?

In Mount Holly, New Jersey, the average relative humidity in August is 73%.

What is the rainiest month in Mount Holly?

The wettest months in Mount Holly are July and August, with an average 1.42" (36mm) of rainfall.

How much does it rain in Mount Holly in August?

In Mount Holly, New Jersey, in August, during 12.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow in Mount Holly?

In Mount Holly, New Jersey, snow does not fall in April through October.

What is the average length of the day in August in Mount Holly?

In August, the average day length is 13h and 42min.

When are sunrise and sunset in August in Mount Holly?

In August, on the first day of the month, sunrise is at 5:58 am and sunset at 8:12 pm. On the last day of the month, in Mount Holly, New Jersey, sunrise is at 6:26 am and sunset at 7:31 pm EDT.

How many hours of sunshine does Mount Holly have in August?

The average sunshine duration in August is 10.2h.

When is the highest UV index in Mount Holly?

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

How high is the UV index in August in Mount Holly?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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 August
Mount Holly, NJ

Average temperature in August - Mount Holly, NJ
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in August
Mount Holly, NJ

Average pressure in August - Mount Holly, NJ
  • Average pressure in August: 29.98"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 August
Mount Holly, NJ

Average wind speed in August - Mount Holly, NJ
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in August
Mount Holly, NJ

Average humidity in August - Mount Holly, NJ
  • Average humidity in August: 73%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in August
Mount Holly, NJ

Average rainfall in August - Mount Holly, NJ
  • Average rainfall in August: 1.42"

The wettest months (with the highest rainfall) are July and August (1.42").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in August
Mount Holly, NJ

Average rainfall days in August - Mount Holly, NJ
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in August
Mount Holly, NJ

Average snowfall in August - Mount Holly, NJ
  • Average snowfall in August: 0"

The months with the highest snowfall are February and March (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Mount Holly, NJ

Average snowfall days in August - Mount Holly, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Mount Holly, NJ

Average daylight in August / Average sunshine in August - Mount Holly, NJ
  • Average daylight in August: 13h 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 24min).

  • Average sunshine in August: 10h and 1min

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 54min).

Average sunshine days in August
Mount Holly, NJ

Average sunshine days in August - Mount Holly, NJ
  • Average sunshine days in August: 15.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13 days).

Average UV index in August
Mount Holly, NJ

Average UV index in August - Mount Holly, NJ
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Mount Holly, NJ

Average cloud cover in August - Mount Holly, NJ
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Mount Holly, NJ

Average visibility in August - Mount Holly, NJ
  • Average visibility in August: 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).

Mount Holly, New Jersey, USA

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