August weather forecast
Runnemede, NJ

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Weather in August

The last month of the summer, August, is another warm month in Runnemede, New Jersey, with an average temperature fluctuating between 68.2°F (20.1°C) and 83.7°F (28.7°C).

Temperature

Runnemede's August reports an average high-temperature of a still warm 83.7°F (28.7°C), exhibiting a minor difference from July. Runnemede's nighttime temperature in August drops to an average of 68.2°F (20.1°C).

Heat index

The heat index for August is computed to be a tropical 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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 72%.

Rainfall

August is the month with the most rainfall. Rain falls for 12 days and accumulates 1.38" (35mm) of precipitation.

Snowfall

In Runnemede, snow does not fall in April, June through October.

Daylight

In Runnemede, the average length of the day in August is 13h and 41min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:32 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, a regular UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, in Runnemede, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 72%.

What is the wettest month?

August is the month with the most rainfall. Rain falls for 12 days and accumulates 1.38" (35mm) of precipitation.

How many days does it rain in August?

In Runnemede, in August, it is raining for 12 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow?

April, June through October are months without snowfall.

What is the average length of the day in August in Runnemede?

In August, the average day length is 13h and 41min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:32 pm EDT.

How many hours of sunshine does Runnemede have in August?

In August, the average sunshine duration is 10.3h.

When is the highest UV index?

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 Runnemede?

In August, the average daily maximum UV index in Runnemede is 6. A UV Index value of 6 to 7 symbolizes a high health risk from 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
Runnemede, NJ

Average temperature in August - Runnemede, NJ
  • Average high temperature in August: 83.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in August
Runnemede, NJ

Average pressure in August - Runnemede, 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
Runnemede, NJ

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

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

Average humidity in August
Runnemede, NJ

Average humidity in August - Runnemede, NJ
  • Average humidity in August: 72%

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in August
Runnemede, NJ

Average rainfall in August - Runnemede, NJ
  • Average rainfall in August: 1.38"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

Average rainfall days in August
Runnemede, NJ

Average rainfall days in August - Runnemede, NJ
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in August
Runnemede, NJ

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

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in August
Runnemede, NJ

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

The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Runnemede, NJ

Average daylight in August / Average sunshine in August - Runnemede, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in August
Runnemede, NJ

Average sunshine days in August - Runnemede, NJ
  • Average sunshine days in August: 15.6 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in August
Runnemede, NJ

Average UV index in August - Runnemede, 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
Runnemede, NJ

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

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in August
Runnemede, NJ

Average visibility in August - Runnemede, 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).

Runnemede, New Jersey, USA

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