July weather forecast
King of Prussia, PA

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Weather in July

July is the height of summer for King of Prussia and typically, the hottest month of the year. The long daylight hours and the high UV index characteristic of summer are all present. A decrease in cloud cover brings more clear days, ideal for outdoor excursions and activities. July's temperature varies from 67.5°F (19.7°C) to 85.6°F (29.8°C), with precipitation reaching nearly 1.89" (48mm) across 15 days. The weather is usually balmy, fitting for the multitude of summer events that take place in King of Prussia.

Temperature

In King of Prussia, the month of July registers the highest temperatures, averaging 85.6°F (29.8°C) at the peak and 67.5°F (19.7°C) at the lowest.

Heat index

Throughout July, the heat index is evaluated at a fiery hot 95°F (35°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

April and July, with an average relative humidity of 72%, are the least humid months in King of Prussia.

Rainfall

The month with the most rainfall is July, when the rain falls for 15 days and typically aggregates up to 1.89" (48mm) of precipitation.

Snowfall

April, June through November are months without snowfall.

Daylight

The average length of the day in July is 14h and 41min.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:34 pm. On the last day of July, in King of Prussia, sunrise is at 5:59 am and sunset at 8:16 pm EDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year in King of Prussia.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in King of Prussia. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 during July leads to these advisories:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What is the warmest month in King of Prussia?

July is the warmest month in King of Prussia, exhibiting average temperatures of 85.6°F (29.8°C) at the peak and 67.5°F (19.7°C) at the base.

How hot does it get in King of Prussia in July?

In July, in King of Prussia, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 67.5°F (19.7°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 95°F (35°C).

What is the least humid month in King of Prussia?

April and July, with an average relative humidity of 72%, are the least humid months in King of Prussia.

What is the average humidity in July in King of Prussia?

In King of Prussia, Pennsylvania, the average relative humidity in July is 72%.

What is the rainiest month in King of Prussia?

The month with the most rainfall in King of Prussia, Pennsylvania, is July, when the rain falls for 15 days and typically aggregates up to 1.89" (48mm) of precipitation.

How many days does it rain in July in King of Prussia?

In King of Prussia, in July, it is raining for 15 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow in King of Prussia?

April, June through November are months without snowfall.

How many hours of daylight does King of Prussia have in July?

The average day length in July in King of Prussia is 14h and 41min.

When are sunrise and sunset in July in King of Prussia?

On the first day of July in King of Prussia, sunrise is at 5:36 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:16 pm EDT.

What month has the most sunshine in King of Prussia?

July has the most sunshine of the year in King of Prussia, Pennsylvania, with an average of 10.7h of sunshine.

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

In King of Prussia, the average sunshine duration in July is 10.7h.

What is the month with the highest UV index in King of Prussia?

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

What is the UV index reading in July in King of Prussia?

The average daily maximum UV index in July in King of Prussia, Pennsylvania, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 July
King of Prussia, PA

Average temperature in July - King of Prussia, PA
  • Average high temperature in July: 85.6°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 July: 67.5°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).

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Average pressure in July
King of Prussia, PA

Average pressure in July - King of Prussia, PA
  • Average pressure in July: 29.96"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).

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Average wind speed in July
King of Prussia, PA

Average wind speed in July - King of Prussia, PA
  • Average wind speed in July: 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).

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Average humidity in July
King of Prussia, PA

Average humidity in July - King of Prussia, PA
  • Average humidity in July: 72%

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

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Average rainfall in July
King of Prussia, PA

Average rainfall in July - King of Prussia, PA
  • Average rainfall in July: 1.89"

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

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Average rainfall days in July
King of Prussia, PA

Average rainfall days in July - King of Prussia, PA
  • Average rainfall days in July: 15 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).

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Average snowfall in July
King of Prussia, PA

Average snowfall in July - King of Prussia, PA
  • Average snowfall in July: 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").

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Average snowfall days in July
King of Prussia, PA

Average snowfall days in July - King of Prussia, PA
  • Average snowfall days in July: 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).

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

Average daylight in July / Average sunshine in July - King of Prussia, PA
  • Average daylight in July: 14h 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 July: 10h and 4min

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).

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Average sunshine days in July
King of Prussia, PA

Average sunshine days in July - King of Prussia, PA
  • Average sunshine days in July: 13.6 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).

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Average UV index in July
King of Prussia, PA

Average UV index in July - King of Prussia, PA
  • Average UV index in July: 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).

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Average cloud cover in July
King of Prussia, PA

Average cloud cover in July - King of Prussia, PA
  • Average cloud cover in July: 32

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

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Average visibility in July
King of Prussia, PA

Average visibility in July - King of Prussia, PA
  • Average visibility in July: 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).

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King of Prussia, Pennsylvania, USA

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