August weather forecast
Rock Glen, PA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Rock Glen, Pennsylvania, with an average temperature ranging between max 78.4°F (25.8°C) and min 57.7°F (14.3°C).

Temperature

Rock Glen's entry into August measures an average high-temperature of a still warm 78.4°F (25.8°C), closely parallel to the preceding month. The low-temperature average for Rock Glen during August stands at a mild 57.7°F (14.3°C).

Humidity

The average relative humidity in August is 80%.

Rainfall

In Rock Glen, during August, the rain falls for 10.2 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Rock Glen, there are 111.5 rainfall days, and 11.34" (288mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 46min.
On the first day of August, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:38 pm EDT.

Sunshine

In August, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during August translates into the following guidance:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. 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.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

In Rock Glen, in August, the average high-temperature is 78.4°F (25.8°C), and the average low-temperature is 57.7°F (14.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in July is estimated at 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 80%.

How much does it rain in August?

In Rock Glen, during August, the rain falls for 10.2 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Rock Glen have in August?

In Rock Glen, the average day length in August is 13h and 46min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:38 pm EDT.

How long on average sun shines in August?

In Rock Glen, the average sunshine duration in August is 9.4h.

How high is the UV index in August?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Rock Glen, PA

Average temperature in August - Rock Glen, PA
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in August: 57.7°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Rock Glen, PA

Average pressure in August - Rock Glen, 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 (29.94"Hg).

Average wind speed in August
Rock Glen, PA

Average wind speed in August - Rock Glen, PA
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
Rock Glen, PA

Average humidity in August - Rock Glen, PA
  • Average humidity in August: 80%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).

Average rainfall in August
Rock Glen, PA

Average rainfall in August - Rock Glen, PA
  • Average rainfall in August: 1.06"

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

Average rainfall days in August
Rock Glen, PA

Average rainfall days in August - Rock Glen, PA
  • Average rainfall days in August: 10.2 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in August
Rock Glen, PA

Average snowfall in August - Rock Glen, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Rock Glen, PA

Average snowfall days in August - Rock Glen, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Rock Glen, PA

Average daylight in August / Average sunshine in August - Rock Glen, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in August
Rock Glen, PA

Average sunshine days in August - Rock Glen, PA
  • Average sunshine days in August: 18.1 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (14.3 days).

Average UV index in August
Rock Glen, PA

Average UV index in August - Rock Glen, PA
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Rock Glen, PA

Average cloud cover in August - Rock Glen, PA
  • Average cloud cover in August: 40

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in August
Rock Glen, PA

Average visibility in August - Rock Glen, PA
  • Average visibility in August: 5mi

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

Rock Glen, Pennsylvania, USA

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