July weather forecast
Bryn Mawr, PA

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Weather in July

July, the same as June, is a moderately hot summer month in Bryn Mawr, Pennsylvania, with an average temperature fluctuating between 68.9°F (20.5°C) and 85.8°F (29.9°C).

Temperature

Temperature records mark July as the warmest month, with highs averaging 85.8°F (29.9°C) and lows at 68.9°F (20.5°C).

Heat index

During July, the heat index is evaluated at a fiery hot 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The months with the lowest humidity in Bryn Mawr are April, July and August, with an average relative humidity of 71%.

Rainfall

The wettest months are July and August, with an average 1.14" (29mm) of rainfall.

Snowfall

April through October are months without snowfall in Bryn Mawr.

Daylight

In July, the average length of the day in Bryn Mawr, Pennsylvania, is 14h and 41min.
On the first day of July in Bryn Mawr, 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 8:15 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What is the warmest month in Bryn Mawr?

July registers as the month with the average highest temperatures in Bryn Mawr, Pennsylvania, reaching 85.8°F (29.9°C) at its peak and 68.9°F (20.5°C) at the lowest.

How hot is July in Bryn Mawr?

The average high-temperature, in July, in Bryn Mawr, is 85.8°F (29.9°C), while the average low-temperature is 68.9°F (20.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 95°F (35°C).

What are the least humid months in Bryn Mawr?

The months with the lowest humidity in Bryn Mawr are April, July and August, with an average relative humidity of 71%.

What is the average humidity in July in Bryn Mawr?

The average relative humidity in July is 71%.

What is the rainiest month in Bryn Mawr?

The wettest months are July and August, with an average 1.14" (29mm) of rainfall.

How much does it rain in Bryn Mawr in July?

In Bryn Mawr, Pennsylvania, in July, during 13.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When it does not snow in Bryn Mawr?

April through October are months without snowfall in Bryn Mawr.

How many hours of daylight does Bryn Mawr have in July?

In Bryn Mawr, Pennsylvania, the average day length in July is 14h and 41min.

When are sunrise and sunset in July in Bryn Mawr?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:34 pm. On the last day of the month, in Bryn Mawr, Pennsylvania, sunrise is at 5:59 am and sunset at 8:15 pm EDT.

What month has the most sunshine in Bryn Mawr?

The month with the most sunshine in Bryn Mawr, Pennsylvania, is July, with an average of 10.6h of sunshine.

How many hours of sunshine does Bryn Mawr have in July?

The average sunshine duration in July in Bryn Mawr is 10.6h.

What are the months with the highest UV index in Bryn Mawr?

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

How high is the UV index in July in Bryn Mawr?

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

Average temperature in July - Bryn Mawr, PA
  • Average high temperature in July: 85.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in July: 68.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in July
Bryn Mawr, PA

Average pressure in July - Bryn Mawr, 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
Bryn Mawr, PA

Average wind speed in July - Bryn Mawr, PA
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in July
Bryn Mawr, PA

Average humidity in July - Bryn Mawr, PA
  • Average humidity in July: 71%

The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (71%).

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Average rainfall in July
Bryn Mawr, PA

Average rainfall in July - Bryn Mawr, PA
  • Average rainfall in July: 1.14"

The wettest months (with the highest rainfall) are July and August (1.14").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in July
Bryn Mawr, PA

Average rainfall days in July - Bryn Mawr, PA
  • Average rainfall days in July: 13.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in July
Bryn Mawr, PA

Average snowfall in July - Bryn Mawr, PA
  • Average snowfall in July: 0"

The months with the highest snowfall are February and March (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Bryn Mawr, PA

Average snowfall days in July - Bryn Mawr, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.5 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
Bryn Mawr, PA

Average daylight in July / Average sunshine in July - Bryn Mawr, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in July
Bryn Mawr, PA

Average sunshine days in July - Bryn Mawr, PA
  • Average sunshine days in July: 14.9 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.9 days).

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Average UV index in July
Bryn Mawr, PA

Average UV index in July - Bryn Mawr, 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, November and December (UV index 2).

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Average cloud cover in July
Bryn Mawr, PA

Average cloud cover in July - Bryn Mawr, PA
  • Average cloud cover in July: 32

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in July
Bryn Mawr, PA

Average visibility in July - Bryn Mawr, PA
  • Average visibility in July: 6mi

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

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Bryn Mawr, Pennsylvania, USA

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