August weather forecast
Summerville, PA

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Weather in August

The last month of the summer, August, is another warm month in Summerville, Pennsylvania, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 56.7°F (13.7°C).

Temperature

The introduction of August notes a subtle temperature variation to a still moderately hot 78.6°F (25.9°C) from July's 80.6°F (27°C). In August, Summerville endures a notable temperature shift from day to night, with lows averaging at a moderate 56.7°F (13.7°C).

Humidity

The months with the lowest humidity in Summerville are June through August, with an average relative humidity of 78%.

Rainfall

In Summerville, in August, during 14.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 150.5 rainfall days, and 22.05" (560mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Summerville, Pennsylvania, is 13h and 46min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:43 am and sunset at 7:50 pm EDT.

Sunshine

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What are the temperatures in Summerville in August?

The high-temperature, in August, in Summerville, is 78.6°F (25.9°C), while the low-temperature averages to 56.7°F (13.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What are the least humid months in Summerville?

The months with the lowest humidity are June through August, with an average relative humidity of 78%.

What is the average humidity in August in Summerville?

In August, the average relative humidity in Summerville, Pennsylvania, is 78%.

How much does it rain in Summerville in August?

In Summerville, in August, it is raining for 14.3 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Summerville?

In Summerville, Pennsylvania, snow does not fall in June through September.

How many hours of daylight does Summerville have in August?

In Summerville, Pennsylvania, the average day length in August is 13h and 46min.

What time are sunrise and sunset in August in Summerville?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:50 pm EDT.

What is the month with the most sunshine in Summerville?

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

How many hours of sunshine does Summerville have in August?

The average sunshine duration in August in Summerville is 9.7h.

What is the month with the highest UV index in Summerville?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Summerville, Pennsylvania.

What is the UV index reading in August in Summerville?

In August, the average daily maximum UV index in Summerville 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
Summerville, PA

Average temperature in August - Summerville, PA
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in August: 56.7°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in August
Summerville, PA

Average pressure in August - Summerville, PA
  • Average pressure in August: 30"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).

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Average wind speed in August
Summerville, PA

Average wind speed in August - Summerville, PA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in August
Summerville, PA

Average humidity in August - Summerville, PA
  • Average humidity in August: 78%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).

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Average rainfall in August
Summerville, PA

Average rainfall in August - Summerville, PA
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is November (1.26").

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Average rainfall days in August
Summerville, PA

Average rainfall days in August - Summerville, PA
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in August
Summerville, PA

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

The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Summerville, PA

Average snowfall days in August - Summerville, 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
Summerville, PA

Average daylight in August / Average sunshine in August - Summerville, PA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in August
Summerville, PA

Average sunshine days in August - Summerville, PA
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.1 days).

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Average UV index in August
Summerville, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Summerville, PA

Average cloud cover in August - Summerville, PA
  • Average cloud cover in August: 39

The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in August
Summerville, PA

Average visibility in August - Summerville, PA
  • Average visibility in August: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).

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Summerville, Pennsylvania, USA

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