August weather forecast
Harrisonville, NJ

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Weather in August

August, the last month of the summer in Harrisonville, is also a moderately hot month, with temperature in the range of an average low of 67.5°F (19.7°C) and an average high of 83.3°F (28.5°C).

Temperature

August registers an average high-temperature of a still moderately hot 83.3°F (28.5°C), slightly varied from July's 85.1°F (29.5°C). Harrisonville, during August nights, observes an average temperature of 67.5°F (19.7°C).

Heat index

The heat index value during August is estimated at a hot 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in August is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 13.5 days and typically aggregates up to 1.93" (49mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 41min.
On the first day of August, sunrise is at 6:02 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. 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. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, the average high-temperature and low-temperature are 83.3°F (28.5°C) and 67.5°F (19.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 13.5 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in August?

In Harrisonville, in August, during 13.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Harrisonville have in August?

The average day length in August is 13h and 41min.

What time are sunrise and sunset in August in Harrisonville?

On the first day of August in Harrisonville, New Jersey, sunrise is at 6:02 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

How many hours of sunshine does Harrisonville have in August?

In Harrisonville, the average sunshine duration in August is 10.3h.

What is the month with the highest UV index?

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

How high is the UV index in August?

In Harrisonville, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 August
Harrisonville, NJ

Average temperature in August - Harrisonville, NJ
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 67.5°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 (26.8°F).

Average pressure in August
Harrisonville, NJ

Average pressure in August - Harrisonville, NJ
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Harrisonville, NJ

Average wind speed in August - Harrisonville, NJ
  • Average wind speed in August: 5.6mph

The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in August
Harrisonville, NJ

Average humidity in August - Harrisonville, NJ
  • Average humidity in August: 75%

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

Average rainfall in August
Harrisonville, NJ

Average rainfall in August - Harrisonville, NJ
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in August
Harrisonville, NJ

Average rainfall days in August - Harrisonville, NJ
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in August
Harrisonville, NJ

Average snowfall in August - Harrisonville, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Harrisonville, NJ

Average snowfall days in August - Harrisonville, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.6 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
Harrisonville, NJ

Average daylight in August / Average sunshine in August - Harrisonville, NJ
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Harrisonville, NJ

Average sunshine days in August - Harrisonville, NJ
  • Average sunshine days in August: 14.3 days

The months with the most sunshine days are November and December (20.9 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in August
Harrisonville, NJ

Average UV index in August - Harrisonville, 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
Harrisonville, NJ

Average cloud cover in August - Harrisonville, NJ
  • Average cloud cover in August: 31

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Harrisonville, NJ

Average visibility in August - Harrisonville, 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).

Harrisonville, New Jersey, USA

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