August weather forecast
South Mountain, PA

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Weather in August

The last month of the summer, August, is another warm month in South Mountain, Pennsylvania, with an average temperature varying between 81.7°F (27.6°C) and 62.2°F (16.8°C).

Temperature

August's climate shows a minor adjustment in average high-temperatures to a still moderately hot 81.7°F (27.6°C) from July's 84.2°F (29°C). South Mountain's August nights cool down to an average low-temperature of 62.2°F (16.8°C).

Heat index

In August, the heat index is calculated to be a hot 87.8°F (31°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

The average relative humidity in August is 78%.

Rainfall

In South Mountain, during August, the rain falls for 13.2 days and regularly aggregates up to 1.1" (28mm) of precipitation. In South Mountain, during the entire year, the rain falls for 125.3 days and collects up to 10.59" (269mm) of precipitation.

Snowfall

In South Mountain, snow does not fall in May through October.

Daylight

In South Mountain, the average length of the day in August is 13h and 41min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:42 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What are August temperatures in South Mountain?

In South Mountain, in August, the average high-temperature is 81.7°F (27.6°C), and the average low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in August in South Mountain?

The average relative humidity in August in South Mountain is 78%.

How much does it rain in South Mountain in August?

In South Mountain, Pennsylvania, in August, it is raining for 13.2 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in South Mountain?

May through October are months without snowfall.

What is the average length of the day in August in South Mountain?

In South Mountain, Pennsylvania, the average day length in August is 13h and 41min.

When is the sunrise / sunset in August in South Mountain?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:23 pm. On the last day of the month, in South Mountain, sunrise is at 6:37 am and sunset at 7:42 pm EDT.

How long on average sun shines in August in South Mountain?

In August, the average sunshine duration in South Mountain, Pennsylvania, is 10.3h.

When is the highest UV index in South Mountain?

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

What is the UV index reading in August in South Mountain?

The average daily maximum UV index in August is 6. A UV Index reading 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
South Mountain, PA

Average temperature in August - South Mountain, PA
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in August
South Mountain, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in August
South Mountain, PA

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

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in August
South Mountain, PA

Average humidity in August - South Mountain, PA
  • Average humidity in August: 78%

The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in August
South Mountain, PA

Average rainfall in August - South Mountain, PA
  • Average rainfall in August: 1.1"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").

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Average rainfall days in August
South Mountain, PA

Average rainfall days in August - South Mountain, PA
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in August
South Mountain, PA

Average snowfall in August - South Mountain, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
South Mountain, PA

Average snowfall days in August - South Mountain, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
South Mountain, PA

Average daylight in August / Average sunshine in August - South Mountain, 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 24min).

  • Average sunshine in August: 10h and 2min

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

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Average sunshine days in August
South Mountain, PA

Average sunshine days in August - South Mountain, PA
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (12.9 days).

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Average UV index in August
South Mountain, PA

Average UV index in August - South Mountain, PA
  • Average UV index in August: 6

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

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Average cloud cover in August
South Mountain, PA

Average cloud cover in August - South Mountain, PA
  • Average cloud cover in August: 33

The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in August
South Mountain, PA

Average visibility in August - South Mountain, PA
  • Average visibility in August: 5mi

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

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South Mountain, Pennsylvania, USA

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