August weather forecast
Perkiomen Junction, PA

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Weather in August

August, the last month of the summer in Perkiomen Junction, is also a moderately hot month, with an average temperature fluctuating between 82.8°F (28.2°C) and 65.5°F (18.6°C).

Temperature

August experiences an average high-temperature of a still moderately hot 82.8°F (28.2°C), barely different from July's 85.1°F (29.5°C). Perkiomen Junction observes an average nighttime low-temperature of 65.5°F (18.6°C) during the month of August.

Heat index

In August, the average heat index is calculated to be a hot 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in August in Perkiomen Junction is 75%.

Rainfall

The month with the most rainfall is August, when the rain falls for 13.5 days and typically aggregates up to 1.77" (45mm) of precipitation.

Snowfall

In Perkiomen Junction, Pennsylvania, snow does not fall in April through October.

Daylight

The average length of the day in August in Perkiomen Junction is 13h and 43min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

Sunshine

In August, the average sunshine is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

August temperatures vary between a high-temperature of 82.8°F (28.2°C) and a low-temperature of 65.5°F (18.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is calculated to be 89.6°F (32°C).

What is the average humidity in August in Perkiomen Junction?

In Perkiomen Junction, the average relative humidity in August is 75%.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 13.5 days and typically aggregates up to 1.77" (45mm) of precipitation.

How much does it rain in August?

In August, the rain falls for 13.5 days. Throughout August, 1.77" (45mm) of precipitation is accumulated.

When it does not snow?

In Perkiomen Junction, snow does not fall in April through October.

What is the average length of the day in August?

The average day length in August is 13h and 43min.

When is the sunrise / sunset in August in Perkiomen Junction?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

How long on average sun shines in August in Perkiomen Junction?

The average sunshine duration in August is 10h.

What is the month with the highest UV index?

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

What is the UV index reading in August?

In Perkiomen Junction, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Perkiomen Junction, PA

Average temperature in August - Perkiomen Junction, PA
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in August
Perkiomen Junction, PA

Average pressure in August - Perkiomen Junction, PA
  • Average pressure in August: 29.99"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).

Average wind speed in August
Perkiomen Junction, PA

Average wind speed in August - Perkiomen Junction, PA
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in August
Perkiomen Junction, PA

Average humidity in August - Perkiomen Junction, PA
  • Average humidity in August: 75%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in August
Perkiomen Junction, PA

Average rainfall in August - Perkiomen Junction, PA
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days in August
Perkiomen Junction, PA

Average rainfall days in August - Perkiomen Junction, PA
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in August
Perkiomen Junction, PA

Average snowfall in August - Perkiomen Junction, PA
  • Average snowfall in August: 0"

The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Perkiomen Junction, PA

Average snowfall days in August - Perkiomen Junction, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Perkiomen Junction, PA

Average daylight in August / Average sunshine in August - Perkiomen Junction, 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 0min

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 36min).

Average sunshine days in August
Perkiomen Junction, PA

Average sunshine days in August - Perkiomen Junction, PA
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in August
Perkiomen Junction, PA

Average UV index in August - Perkiomen Junction, PA
  • Average UV index in August: 6

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

Average cloud cover in August
Perkiomen Junction, PA

Average cloud cover in August - Perkiomen Junction, PA
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Perkiomen Junction, PA

Average visibility in August - Perkiomen Junction, PA
  • Average visibility in August: 6mi

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

Perkiomen Junction, Pennsylvania, USA

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