August weather forecast
Clarksville, PA

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Weather in August

August, the last month of the summer in Clarksville, is also a moderately hot month, with an average temperature varying between 59.5°F (15.3°C) and 82.2°F (27.9°C).

Temperature

The advent of August reveals an average high-temperature of a still warm 82.2°F (27.9°C), showing minimal difference from the prior month. During August, Clarksville detects a significant contrast from its daytime temperatures, with nights averaging at a refreshing 59.5°F (15.3°C).

Heat index

Throughout August, the heat index is computed to be a tropical 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The months with the lowest humidity are April, July and August, with an average relative humidity of 77%.

Rainfall

In Clarksville, in August, it is raining for 16.5 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, in Clarksville, there are 183 rainfall days, and 30.91" (785mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 42min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:47 am and sunset at 7:52 pm EDT.

Sunshine

August has the most sunshine of the year in Clarksville, with an average of 10.1h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What are the temperatures in August?

In Clarksville, in August, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 59.5°F (15.3°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What are the least humid months?

April, July and August, with an average relative humidity of 77%, are the least humid months.

What is the average humidity in August?

In August, the average relative humidity is 77%.

How many days does it rain in August?

In August, the rain falls for 16.5 days. Throughout August, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

The average day length in August is 13h and 42min.

When are sunrise and sunset in August in Clarksville?

In August, on the first day of the month, sunrise is at 6:19 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:52 pm EDT.

What month has the most sunshine?

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

How long on average sun shines in August?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index in Clarksville is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average max. wind speed
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
Clarksville, PA

Average temperature in August - Clarksville, PA
  • Average high temperature in August: 82.2°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 (34.3°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in August
Clarksville, PA

Average pressure in August - Clarksville, 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).

Average wind speed in August
Clarksville, PA

Average wind speed in August - Clarksville, PA
  • Average wind speed in August: 4.4mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in August
Clarksville, PA

Average humidity in August - Clarksville, PA
  • Average humidity in August: 77%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in August
Clarksville, PA

Average rainfall in August - Clarksville, PA
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in August
Clarksville, PA

Average rainfall days in August - Clarksville, PA
  • Average rainfall days in August: 16.5 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (10.6 days).

Average snowfall in August
Clarksville, PA

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

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Clarksville, PA

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

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Clarksville, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in August
Clarksville, PA

Average sunshine days in August - Clarksville, PA
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is February (7.5 days).

Average UV index in August
Clarksville, PA

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

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

Average cloud cover in August
Clarksville, PA

Average cloud cover in August - Clarksville, PA
  • Average cloud cover in August: 35

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in August
Clarksville, PA

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

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

Clarksville, Pennsylvania, USA

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