July weather forecast
Castle Shannon, PA

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Weather in July

July, like June, in Castle Shannon, Pennsylvania, is another warm summer month, with an average temperature fluctuating between 83.8°F (28.8°C) and 63°F (17.2°C).

Temperature

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

Heat index

July's heat index is calculated to be a hot 91.4°F (33°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

The average relative humidity in July is 74%.

Rainfall

In Castle Shannon, Pennsylvania, 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

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

Daylight

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

Sunshine

In Castle Shannon, the average sunshine in July is 9.9h.

UV index

The months with the highest UV index 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 exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What part of the year is the hottest?

The warmest month is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63°F (17.2°C).

Is it hot during July?

Castle Shannon in July has an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63°F (17.2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in July is calculated to be 91.4°F (33°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How many days does it rain in July?

In Castle Shannon, during July, the rain falls for 17.7 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Castle Shannon have in July?

In July, the average day length is 14h and 43min.

When are sunrise and 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 many hours of sunshine does Castle Shannon have in July?

The average sunshine duration in July is 9.9h.

When is the highest UV index?

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

How high is the UV index in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Castle Shannon, Pennsylvania, USA

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