July weather forecastBryn Mawr, PA
July
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 14h and 42min
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 36min
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: 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: 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: 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: 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).
