August weather forecast
King of Prussia, PA

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Weather in August

August sees a slight downturn in temperature compared to July, although the summer heat continues to dominate. The daylight hours reduce slightly, indicating the forthcoming end of summer. The fairness of the weather permits a multitude of outdoor activities. The city's temperature ranges from 66°F (18.9°C) to 83.3°F (28.5°C) in August, experiencing 1.77" (45mm) of rainfall across almost 14 days. Despite the slight drop in temperatures, August remains a full-fledged summer month in King of Prussia.

Temperature

August reports an average high-temperature of a still warm 83.3°F (28.5°C), slightly varied from July's 85.6°F (29.8°C). Throughout the month of August, King of Prussia witnesses an average low-temperature of 66°F (18.9°C).

Heat index

The heat index value for August is computed to be a tropical 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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

In August, the average relative humidity is 73%.

Rainfall

In King of Prussia, Pennsylvania, during August, the rain falls for 13.7 days and regularly aggregates up to 1.77" (45mm) of precipitation. In King of Prussia, during the entire year, the rain falls for 138.2 days and collects up to 15.59" (396mm) of precipitation.

Snowfall

April, June through November are months without snowfall.

Daylight

In King of Prussia, Pennsylvania, the average length of the day in August 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 6:28 am and sunset at 7:34 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

The months with the highest UV index in King of Prussia are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

How hot does it get in August?

In King of Prussia, 83.3°F (28.5°C) is the average high-temperature and 66°F (18.9°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in August?

In August, the average relative humidity is 73%.

How many days does it rain in August?

In King of Prussia, during August, the rain falls for 13.7 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow?

April, June through November are months without snowfall.

What is the average length of the day in August?

In King of Prussia, the average day length in August is 13h and 43min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:34 pm EDT.

How many hours of sunshine does King of Prussia have in August?

The average sunshine duration in August is 10.2h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index in King of Prussia is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
King of Prussia, PA

Average temperature in August - King of Prussia, PA
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in August
King of Prussia, PA

Average pressure in August - King of Prussia, 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
King of Prussia, PA

Average wind speed in August - King of Prussia, PA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in August
King of Prussia, PA

Average humidity in August - King of Prussia, PA
  • Average humidity in August: 73%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).

Average rainfall in August
King of Prussia, PA

Average rainfall in August - King of Prussia, PA
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in August
King of Prussia, PA

Average rainfall days in August - King of Prussia, PA
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).

Average snowfall in August
King of Prussia, PA

Average snowfall in August - King of Prussia, PA
  • Average snowfall in August: 0"

The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in August
King of Prussia, PA

Average snowfall days in August - King of Prussia, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
King of Prussia, PA

Average daylight in August / Average sunshine in August - King of Prussia, 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 July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in August
King of Prussia, PA

Average sunshine days in August - King of Prussia, PA
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).

Average UV index in August
King of Prussia, PA

Average UV index in August - King of Prussia, 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
King of Prussia, PA

Average cloud cover in August - King of Prussia, PA
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
King of Prussia, PA

Average visibility in August - King of Prussia, 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).

King of Prussia, Pennsylvania, USA

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