August weather forecast
Penn, PA

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Weather in August

August, the last month of the summer in Penn, is another warm month, with an average temperature ranging between max 81.1°F (27.3°C) and min 59.2°F (15.1°C).

Temperature

Penn's average high-temperature marks a still warm 81.1°F (27.3°C) with the advent of August, closely mirroring that of the preceding month. The temperature in Penn notes a substantial fall from the daily peak to an average of 59.2°F (15.1°C) during August nights.

Heat index

For most parts of August, the heat index is estimated at a hot 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. 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 direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

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

Rainfall

In August, in Penn, the rain falls for 17.3 days. Throughout August, 2.48" (63mm) of precipitation is accumulated. In Penn, during the entire year, the rain falls for 183.8 days and collects up to 35.16" (893mm) of precipitation.

Snowfall

June through September are months without snowfall in Penn.

Daylight

In August, the average length of the day in Penn is 13h and 43min.
On the first day of August in Penn, Pennsylvania, sunrise is at 6:16 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:51 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 during August leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

What is the temperature in August in Penn?

In Penn, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 59.2°F (15.1°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the least humid month in Penn?

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

What is the average humidity in August in Penn?

In August, the average relative humidity is 77%.

How much does it rain in Penn in August?

In August, in Penn, the rain falls for 17.3 days. Throughout August, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Penn?

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

What is the average length of the day in August in Penn?

In August, the average day length in Penn is 13h and 43min.

What time are sunrise and sunset in August in Penn?

On the first day of August, sunrise is at 6:16 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:51 pm EDT.

What month has the most sunshine in Penn?

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

How long on average sun shines in August in Penn?

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

How high is the UV index in August in Penn?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Penn, PA

Average temperature in August - Penn, PA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in August: 59.2°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in August
Penn, PA

Average pressure in August - Penn, 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
Penn, PA

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

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in August
Penn, PA

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

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in August
Penn, PA

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

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.09").

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Average rainfall days in August
Penn, PA

Average rainfall days in August - Penn, PA
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in August
Penn, PA

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

The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Penn, PA

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

The month with the highest number of snowfall days is January (18.2 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
Penn, PA

Average daylight in August / Average sunshine in August - Penn, 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: 2h and 54min).

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Average sunshine days in August
Penn, PA

Average sunshine days in August - Penn, PA
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (6.7 days).

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Average UV index in August
Penn, PA

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

The months with the highest UV index are June and 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
Penn, PA

Average cloud cover in August - Penn, 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
Penn, PA

Average visibility in August - Penn, 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).

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Penn, Pennsylvania, USA

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