August weather forecast
Arlington Knolls, PA

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Weather in August

August, the last month of the summer in Arlington Knolls, is also a moderately hot month, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 81°F (27.2°C).

Temperature

With August's arrival, Arlington Knolls's weather records an average high-temperature of a still warm 81°F (27.2°C), marking little difference from July's 83.3°F (28.5°C). Arlington Knolls records an average low of 61.5°F (16.4°C) throughout the nights in August.

Heat index

During August, the heat index is calculated to be a tropical 86°F (30°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Arlington Knolls, in August, during 16 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Arlington Knolls, Pennsylvania, during the entire year, the rain falls for 162.5 days and collects up to 31.69" (805mm) of precipitation.

Snowfall

In Arlington Knolls, snow does not fall in June through September.

Daylight

The average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm EDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

In Arlington Knolls, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in August interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

In Arlington Knolls, in August, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in August?

In Arlington Knolls, the average relative humidity in August is 77%.

How much does it rain in August?

In Arlington Knolls, Pennsylvania, in August, during 16 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 44min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm EDT.

How many hours of sunshine does Arlington Knolls have in August?

The average sunshine duration in August is 9.9h.

What is the UV index reading in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate 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
Arlington Knolls, PA

Average temperature in August - Arlington Knolls, PA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in August: 61.5°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in August
Arlington Knolls, PA

Average pressure in August - Arlington Knolls, PA
  • Average pressure in August: 29.99"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
Arlington Knolls, PA

Average wind speed in August - Arlington Knolls, PA
  • Average wind speed in August: 5mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Arlington Knolls, PA

Average humidity in August - Arlington Knolls, PA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in August
Arlington Knolls, PA

Average rainfall in August - Arlington Knolls, PA
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Arlington Knolls, PA

Average rainfall days in August - Arlington Knolls, PA
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (9.9 days).

Average snowfall in August
Arlington Knolls, PA

Average snowfall in August - Arlington Knolls, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (4.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Arlington Knolls, PA

Average snowfall days in August - Arlington Knolls, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Arlington Knolls, PA

Average daylight in August / Average sunshine in August - Arlington Knolls, PA
  • 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 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in August
Arlington Knolls, PA

Average sunshine days in August - Arlington Knolls, PA
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (11.7 days).

Average UV index in August
Arlington Knolls, PA

Average UV index in August - Arlington Knolls, PA
  • Average UV index in August: 5

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

Average cloud cover in August
Arlington Knolls, PA

Average cloud cover in August - Arlington Knolls, PA
  • Average cloud cover in August: 35

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in August
Arlington Knolls, PA

Average visibility in August - Arlington Knolls, PA
  • Average visibility in August: 5mi

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

Arlington Knolls, Pennsylvania, USA

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