August weather forecast
Arnold, PA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Arnold, Pennsylvania, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 59.9°F (15.5°C).

Temperature

Arnold's average high-temperature in August sits at a still moderately hot 81.3°F (27.4°C), showing little difference from the previous month. In August, the temperature drops to an average of 59.9°F (15.5°C) at night.

Heat index

The heat index in August is appraised at a hot 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The months with the lowest humidity in Arnold are April, July and August, with an average relative humidity of 76%.

Rainfall

In Arnold, in August, during 17.7 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 185.5 rainfall days, and 35.59" (904mm) of precipitation is accumulated.

Snowfall

In Arnold, snow does not fall in June through September.

Daylight

In Arnold, the average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 6:16 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:52 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.1h of sunshine.

UV index

In Arnold, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Arnold in August?

Arnold in August has an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 86°F (30°C).

What is the least humid month in Arnold?

The months with the lowest humidity in Arnold, Pennsylvania, are April, July and August, with an average relative humidity of 76%.

What is the average humidity in August in Arnold?

In Arnold, Pennsylvania, the average relative humidity in August is 76%.

How many days does it rain in August in Arnold?

In August, in Arnold, the rain falls for 17.7 days. Throughout August, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Arnold?

June through September are months without snowfall in Arnold.

How many hours of daylight does Arnold have in August?

The average day length in August is 13h and 44min.

What time are sunrise and sunset in August in Arnold?

On the first day of August in Arnold, Pennsylvania, sunrise is at 6:16 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:52 pm EDT.

What month has the most sunshine in Arnold?

With an average of 10.1h of sunshine, August has the most sunshine of the year in Arnold, Pennsylvania.

How many hours of sunshine does Arnold have in August?

In August, the average sunshine duration in Arnold, Pennsylvania, is 10.1h.

What is the UV index reading in August in Arnold?

In August, the average daily maximum UV index in Arnold, Pennsylvania, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Arnold, PA

Average temperature in August - Arnold, PA
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in August
Arnold, PA

Average pressure in August - Arnold, PA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in August
Arnold, PA

Average wind speed in August - Arnold, PA
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in August
Arnold, PA

Average humidity in August - Arnold, PA
  • Average humidity in August: 76%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).

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Average rainfall in August
Arnold, PA

Average rainfall in August - Arnold, PA
  • Average rainfall in August: 2.48"

The wettest months (with the highest rainfall) are April and May (3.66").
The driest month (with the least rainfall) is November (2.2").

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Average rainfall days in August
Arnold, PA

Average rainfall days in August - Arnold, PA
  • Average rainfall days in August: 17.7 days

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (11.1 days).

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Average snowfall in August
Arnold, PA

Average snowfall in August - Arnold, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (6.73").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Arnold, PA

Average snowfall days in August - Arnold, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Arnold, PA

Average daylight in August / Average sunshine in August - Arnold, 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: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in August
Arnold, PA

Average sunshine days in August - Arnold, PA
  • Average sunshine days in August: 12 days

The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.3 days).

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Average UV index in August
Arnold, PA

Average UV index in August - Arnold, PA
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Arnold, PA

Average cloud cover in August - Arnold, PA
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in August
Arnold, PA

Average visibility in August - Arnold, PA
  • Average visibility in August: 6mi

The months with the highest visibility are April and August (6mi).
The months with the lowest visibility are January and February (4mi).

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Arnold, Pennsylvania, USA

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