July weather forecast
Bryn Mawr, PA

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Weather in July

July, like June, in Bryn Mawr, Pennsylvania, is a moderately hot summer month, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 68.9°F (20.5°C).

Temperature

Bryn Mawr witnesses the warmest weather in July, with temperatures averaging a high of 85.8°F (29.9°C) and a low of 68.9°F (20.5°C).

Heat index

The heat index for July is computed to be a sweltering 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

April, July and August, with an average relative humidity of 71%, are the least humid months.

Rainfall

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

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July in Bryn Mawr is 14h and 41min.
On the first day of July, 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 in Bryn Mawr.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Bryn Mawr. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What is the hottest time of year?

In Bryn Mawr, July is the warmest month, with temperatures averaging a high of 85.8°F (29.9°C) and a low of 68.9°F (20.5°C).

How hot does it get in July?

Bryn Mawr in July has an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 68.9°F (20.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in July is computed to be 95°F (35°C).

What is the least humid month?

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

What is the average humidity in July?

The average relative humidity in July is 71%.

What is the wettest month?

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

How many days does it rain in July in Bryn Mawr?

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

When it does not snow?

April through October are months without snowfall.

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

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

When is the sunrise / sunset in July?

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, sunrise is at 5:59 am and sunset at 8:15 pm EDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.6h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.6h.

What is the month with the highest UV index?

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

What is the UV index intensity in July in Bryn Mawr?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Bryn Mawr, Pennsylvania, USA

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