July weather forecast
Castle Shannon, PA

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Weather in July

July, the same as June, is a moderately hot summer month in Castle Shannon, Pennsylvania, with an average temperature ranging between min 63°F (17.2°C) and max 83.8°F (28.8°C).

Temperature

July, characterized by an average high temperature of 83.8°F (28.8°C) and a low temperature of 63°F (17.2°C), is generally the warmest month.

Heat index

In July, the average heat index is evaluated at a tropical 91.4°F (33°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. 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 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Castle Shannon, the average relative humidity in July is 74%.

Rainfall

In Castle Shannon, in July, it is raining for 17.7 days, with typically 2.72" (69mm) of accumulated precipitation. In Castle Shannon, during the entire year, the rain falls for 164 days and collects up to 26.89" (683mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Castle Shannon, the average length of the day in July is 14h and 43min.
On the first day of July in Castle Shannon, Pennsylvania, sunrise is at 5:54 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:35 pm EDT.

Sunshine

In July, the average sunshine is 9.9h.

UV index

The months with the highest UV index in Castle Shannon are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 6 in July leads to these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What time of the year is the hottest in Castle Shannon?

July is the warmest month of the year in Castle Shannon, registering average temperatures as high as 83.8°F (28.8°C) and as low as 63°F (17.2°C).

Is it hot in Castle Shannon during July?

The average high-temperature, in July, in Castle Shannon, is 83.8°F (28.8°C), while the average low-temperature is 63°F (17.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in July is evaluated at 91.4°F (33°C).

What is the average humidity in July in Castle Shannon?

In July, the average relative humidity in Castle Shannon is 74%.

How many days does it rain in July in Castle Shannon?

In July, in Castle Shannon, Pennsylvania, the rain falls for 17.7 days. Throughout July, 2.72" (69mm) of precipitation is accumulated.

When it does not snow in Castle Shannon?

In Castle Shannon, Pennsylvania, snow does not fall in May through September.

What is the average length of the day in July in Castle Shannon?

The average day length in July in Castle Shannon is 14h and 43min.

When is the sunrise / sunset in July in Castle Shannon?

On the first day of July, sunrise is at 5:54 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:35 pm EDT.

How long on average sun shines in July in Castle Shannon?

In July, the average sunshine duration is 9.9h.

What are the months with the highest UV index in Castle Shannon?

The months with the highest UV index in Castle Shannon are June and July, with an average maximum UV index of 6.

How high is the UV index in July in Castle Shannon?

In Castle Shannon, the average daily maximum UV index in July 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
Castle Shannon, PA

Average temperature in July - Castle Shannon, PA
  • Average high temperature in July: 83.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in July: 63°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in July
Castle Shannon, PA

Average pressure in July - Castle Shannon, PA
  • Average pressure in July: 29.98"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 July
Castle Shannon, PA

Average wind speed in July - Castle Shannon, PA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in July
Castle Shannon, PA

Average humidity in July - Castle Shannon, PA
  • Average humidity in July: 74%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).

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Average rainfall in July
Castle Shannon, PA

Average rainfall in July - Castle Shannon, PA
  • Average rainfall in July: 2.72"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in July
Castle Shannon, PA

Average rainfall days in July - Castle Shannon, PA
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in July
Castle Shannon, PA

Average snowfall in July - Castle Shannon, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Castle Shannon, PA

Average snowfall days in July - Castle Shannon, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Castle Shannon, PA

Average daylight in July / Average sunshine in July - Castle Shannon, 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: 9h and 5min

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 July
Castle Shannon, PA

Average sunshine days in July - Castle Shannon, PA
  • Average sunshine days in July: 11.7 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).

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Average UV index in July
Castle Shannon, PA

Average UV index in July - Castle Shannon, PA
  • Average UV index in July: 6

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 July
Castle Shannon, PA

Average cloud cover in July - Castle Shannon, PA
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in July
Castle Shannon, PA

Average visibility in July - Castle Shannon, PA
  • Average visibility in July: 6mi

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

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Castle Shannon, Pennsylvania, USA

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