July weather forecast
Willow Grove, PA

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Weather in July

July is a hot summer month in Willow Grove, Pennsylvania, with an average temperature fluctuating between 86.2°F (30.1°C) and 68.2°F (20.1°C).

Temperature

The warmest month is July, with an average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 68.2°F (20.1°C).

Heat index

For most parts of July, the heat index is appraised at a very hot 96.8°F (36°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The months with the lowest humidity in Willow Grove are April, July and August, with an average relative humidity of 72%.

Rainfall

In Willow Grove, in July, it is raining for 13.9 days, with typically 1.42" (36mm) of accumulated precipitation. In Willow Grove, during the entire year, the rain falls for 122.4 days and collects up to 12.68" (322mm) of precipitation.

Snowfall

May through October are months without snowfall in Willow Grove.

Daylight

In Willow Grove, the average length of the day in July is 14h and 41min.
On the first day of July in Willow Grove, sunrise is at 5:35 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:15 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the hottest time of year in Willow Grove?

In Willow Grove, July records the average highest temperatures, peaking at 86.2°F (30.1°C) and reaching a low of 68.2°F (20.1°C).

How hot does it get in Willow Grove in July?

In Willow Grove, 86.2°F (30.1°C) is the average high-temperature and 68.2°F (20.1°C) is the average low-temperature during July. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 96.8°F (36°C).

What is the least humid month in Willow Grove?

April, July and August, with an average relative humidity of 72%, are the least humid months in Willow Grove, Pennsylvania.

What is the average humidity in July in Willow Grove?

The average relative humidity in July in Willow Grove is 72%.

How many days does it rain in July in Willow Grove?

In Willow Grove, Pennsylvania, in July, during 13.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow in Willow Grove?

In Willow Grove, snow does not fall in May through October.

What is the average length of the day in July in Willow Grove?

In Willow Grove, the average day length in July is 14h and 41min.

When is the sunrise / sunset in July in Willow Grove?

In July, on the first day of the month, sunrise is at 5:35 am and sunset at 8:33 pm. On the last day of the month, in Willow Grove, Pennsylvania, sunrise is at 5:58 am and sunset at 8:15 pm EDT.

What month has the most sunshine in Willow Grove?

With an average of 10.7h of sunshine, July has the most sunshine of the year in Willow Grove.

How many hours of sunshine does Willow Grove have in July?

The average sunshine duration in July in Willow Grove, Pennsylvania, is 10.7h.

What is the month with the highest UV index in Willow Grove?

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

How high is the UV index in July in Willow Grove?

In July, the average daily maximum UV index in Willow Grove, Pennsylvania, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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 July
Willow Grove, PA

Average temperature in July - Willow Grove, PA
  • Average high temperature in July: 86.2°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in July: 68.2°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

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Average pressure in July
Willow Grove, PA

Average pressure in July - Willow Grove, 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
Willow Grove, PA

Average wind speed in July - Willow Grove, PA
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in July
Willow Grove, PA

Average humidity in July - Willow Grove, PA
  • Average humidity in July: 72%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

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Average rainfall in July
Willow Grove, PA

Average rainfall in July - Willow Grove, PA
  • Average rainfall in July: 1.42"

The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").

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Average rainfall days in July
Willow Grove, PA

Average rainfall days in July - Willow Grove, PA
  • Average rainfall days in July: 13.9 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).

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Average snowfall in July
Willow Grove, PA

Average snowfall in July - Willow Grove, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Willow Grove, PA

Average snowfall days in July - Willow Grove, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Willow Grove, PA

Average daylight in July / Average sunshine in July - Willow Grove, 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
Willow Grove, PA

Average sunshine days in July - Willow Grove, PA
  • Average sunshine days in July: 14.7 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).

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Average UV index in July
Willow Grove, PA

Average UV index in July - Willow Grove, 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
Willow Grove, PA

Average cloud cover in July - Willow Grove, PA
  • Average cloud cover in July: 31

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in July
Willow Grove, PA

Average visibility in July - Willow Grove, 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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Willow Grove, Pennsylvania, USA

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